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Masses and Mixing of $c q \bar{q} \bar{q}$ Tetraquarks Using
Glozman-Riska Hyperfine Interaction: In this paper we perform a detailed study of the masses and mixing of the
single charmed scalar tetraquarks: $c q \bar{q} \bar{q}$. We also give a
systematic analysis of these tetraquark states by weight diagrams, quantu... | hep-ph |
Non-Abelian Discrete Flavor Symmetries from Magnetized/Intersecting
Brane Models: We study non-abelian discrete flavor symmetries, which can appear in
magnetized brane models. For example, $D_4$, $\Delta(27)$ and $\Delta(54)$ can
appear and matter fields with several representations can appear. We also study
the orbi... | hep-ph |
Super-leading logarithms in non-global observables in QCD: Colour basis
independent calculation: In a previous paper we reported the discovery of super-leading logarithmic
terms in a non-global QCD observable. In this short update we recalculate the
first super-leading logarithmic contribution to the 'gaps between je... | hep-ph |
Precise predictions for mt, Vcb and tan: The fermion mass and mixing angle predictions of a recently proposed
framework are investigated for large b and $\tau$ Yukawa couplings. A new
allowed region of parameters is found for this large $\tan \beta$ case. The two
predictions which are substantially altered, $m_t$ and $... | hep-ph |
Light axial-vector tetraquark state candidate: $a_1(1420)$: In this article, we study the axial-vector tetraquark state and
two-quark-tetraquark mixed state consist of light quarks using the QCD sum
rules. The present predictions disfavor assigning the $a_1(1420)$ as the
axial-vector tetraquark state with $J^{PC}=1^{++... | hep-ph |
Energy dependence of underlying-event observables from RHIC to LHC
energies: A study of the charged-particle density (number density) in the transverse
region of the di-hadron correlations exploiting the existing pp and p$\bar{\rm
p}$ data from RHIC to LHC energies is reported. This region has contributions
from the ... | hep-ph |
Study of Single W production in e-gamma collisions through the decay
lepton spectrum to probe gamma-WW couplings: We investigate the effect of anomalous gamma-W-W couplings in e-gamma --> nu
W through the angular and energy spectrum of the secondary leptons. Within the
narrow-width approximation, a semi-analytical st... | hep-ph |
Spectrum-doubled Heavy Vector Bosons at the LHC: We study a simple effective field theory incorporating six heavy vector
bosons together with the standard-model field content. The new particles
preserve custodial symmetry as well as an approximate left-right parity
symmetry. The enhanced symmetry of the model allows it... | hep-ph |
Affleck-Dine dynamics and the dark sector of pangenesis: Pangenesis is the mechanism for jointly producing the visible and dark matter
asymmetries via Affleck-Dine dynamics in a baryon-symmetric universe. The
baryon-symmetric feature means that the dark asymmetry cancels the visible
baryon asymmetry and thus enforces a... | hep-ph |
A New Hypothesis on the Origin of the Three Generations: We suggest that the Standard Model may undergo a supercritical transition
near the Landau scale, where the U(1) gauge boson couples to the left and right
handed states of any given fermion with different charges. This scenario
naturally gives rise to three genera... | hep-ph |
Lepton flavor violation beyond the MSSM: Most extensions of the Standard Model lepton sector predict large lepton
flavor violating rates. Given the promising experimental perspectives for
lepton flavor violation in the next few years, this generic expectation might
offer a powerful indirect probe to look for new physic... | hep-ph |
Domain walls in the Two-Higgs-Doublet Model and their charge and
CP-violating interactions with Standard Model fermions: Discrete symmetries play an important role in several extensions of the
Standard Model (SM) of particle physics. For instance, in order to avoid flavor
changing neutral currents, a discrete $Z_2$ s... | hep-ph |
A new approach for calculating the Nambu-Gorkov propagator in color
superconductivity theory: In this article, we propose a new approach to calculate the Nambu-Gorkov
propagator intuitively with some linear algebra techniques in presence of the
scalar diquark condensates. With the help of energy projective operators,... | hep-ph |
More on Parametrization Relevant to Describe Violation of CP, T and CPT
Symmetries in the $K^0-\bar{K^0}$ System: To study violation of CP, T and/or CPT symmetries in the $K^0-\bar{K^0}$
systems, one has to parametrize the relevant mixing parameters and decay
amplitudes in such a way that each parameter represents vi... | hep-ph |
Leading Order Calculation of Electric Conductivity in Hot Quantum
Electrodynamics from Diagrammatic Methods: Using diagrammatic methods, we show how the Ward identity can be used to
constrain the ladder kernel in transport coefficient calculations. More
specifically, we use the Ward identity to determine the necessar... | hep-ph |
Gluon correlations from a Glasma flux-tube model compared to measured
hadron correlations on transverse momentum $\bf (p_t,p_t)$ and angular
differences $\bf (η_Δ,φ_Δ)$: A Glasma flux-tube model has been proposed to explain strong elongation on
pseudorapidity $\eta$ of the same-side 2D peak in minimum-bias angular
... | hep-ph |
Unitary and Analytic Models in Particle Physics Phenomenology: After two decades of a development of the unitary and analytic models of the
electromagnetic structure of hadrons and nuclei their main principles are
briefly formulated, then a general scheme of their applications to the
electromagnetic, weak and strong in... | hep-ph |
Thoughts about the utility of perturbative QCD in the cores of neutron
stars: In this contribution, I discuss the utility that perturbative QCD offers in
studying the matter in the cores of neutron stars. I discuss the reasons why
perturbative QCD can constrain the equation of state at densities far below the
densiti... | hep-ph |
Dark matter astrometry at underground detectors with multiscatter events: We show that current and imminent underground detectors are capable of
precision astrometry of dark matter. First we show that galactic dark matter
velocity distributions can be obtained from reconstructed tracks of dark matter
scattering on mult... | hep-ph |
Improving the J/psi Production Baseline at RHIC and the LHC: We assess the theoretical uncertainties on the inclusive J/psi production
cross section in the Color Evaporation Model (CEM) using values for the charm
quark mass, renormalization and factorization scales obtained from a fit to the
charm production data. We u... | hep-ph |
What Can We Learn About Leptoquarks At LEP200?: We investigate the discovery potential for first generation leptoquarks at
the LEP200 $e^+e^-$ collider. We consider direct leptoquark searches using
single leptoquark production via resolved photon contributions which offers a
much higher kinematic limit than the more co... | hep-ph |
The predictions of the charm structure function exponents behaviour at
low x in deep inelastic scattering: We use the hard (Lipatov) pomeron for the low-x gluon distribution and
provide a compact formula for the ratio $R^{c} =F_{L}^{c}/F_{2}^{c}$ that is
useful to extract the charm structure function from the reduced... | hep-ph |
Quark-Lepton Flavor Democracy and the Non-Existence of the Fourth
Generation: In the Standard Model with two Higgs doublets (type II), which has a
consistent trend to a flavor gauge theory and its related flavor democracy in
the quark and the leptonic sectors (unlike the minimal Standard Model) when the
energy of the... | hep-ph |
Neutralino Dark Matter and Other LHC Predictions from Quasi Yukawa
Unification: We explore the dark matter and LHC implications of t-b-tau quasi Yukawa
unification in the framework of supersymmetric models based on the gauge
symmetry G=SU(4)_{c}\times SU(2)_{L}\times SU(2)_{R}. The deviation from exact
Yukawa unifica... | hep-ph |
$D_s$ Lifetime, $m_b$, $m_c$ and $|V_{cb}|$ in the Heavy Quark Expansion: We present some straightforward applications of the QCD heavy quark
expansion, stated in previous papers [1-3], to the inclusive widths of heavy
flavour hadrons. We address the question of the $D_s$ lifetime and argue that
-- barring Weak Annihil... | hep-ph |
On Supersymmetries: After reviewing electroweak (EW) scale supersymmetry (susy) and split susy,
as well as their implications in very high energy cosmic rays, I present a high
scale susy model for fermion masses. An O(0.1) nu_e-nu_{tau} mixing is
expected. | hep-ph |
On the Spectrum of Lattice Massive SU(2) Yang-Mills: On the basis of extended simulations we provide some results concerning the
spectrum of Massive SU(2) Yang-Mills on the lattice. We study the "time"
correlator of local gauge invariant operators integrated over the remaining
three dimensions. The energy gaps are meas... | hep-ph |
Charmless $B_{u,d,s}\to VT$ decays in perturbative QCD approach: Motivated by the experimental data, we study charmless $B_{u,d,s}\to VT$ ($V$
and $T$ denote light vector and tensor mesons respectively) decays in the
perturbative QCD approach. The predictions of branching ratios, polarization
fractions and direct CP vi... | hep-ph |
Higgs production in hadron collisions: soft and virtual QCD corrections
at NNLO: We consider QCD corrections to Higgs boson production through gluon-gluon
fusion in hadron collisions. Using the recently evaluated two-loop amplitude
for this process and the corresponding factorization formulae for soft-gluon
bremsstra... | hep-ph |
Primordial magnetic fields, anomalous isocurvature fluctuations and Big
Bang nucleosynthesis: We show that the presence of primordial stochastic (hypercharge) magnetic
fields before the electroweak (EW) phase transition induces isocurvature
fluctuations (baryon number inhomogeneities). Depending on the details of the... | hep-ph |
Excess Cross-Sections at the Electroweak Scale in the Sextet Quark
``Standard Model'': If dynamical electroweak symmetry breaking is due to a flavor doublet of
color sextet quarks, enhanced electroweak scale QCD instanton interactions may
produce a large top mass, raise the $\eta_6$ axion mass, and also explain the
e... | hep-ph |
Determination of QCD condensates from tau-decay data: We have used the latest data from the ALEPH Collaboration to extract values
for QCD condensates up to dimension d=12 in the V-A channel and up to dimension
d=8 in the V, A and V+A channels. Performing 2- and 3-parameter fits, we obtain
new results for the correlatio... | hep-ph |
Initial fields and instability in the classical model of the heavy-ion
collision: Color Glass Condensate (CGC) provides a classical description of dense gluon
matter at high energies. Using the McLerran-Venugopalan (MV) model we calculate
the initial energy density \epsilon(\tau) in the early stage of the
relativisti... | hep-ph |
Chiral asymmetry and axial anomaly in magnetized relativistic matter: The induced axial current and the chiral anomaly are studied in the normal
phase of magnetized relativistic matter. A special attention is paid to the
role of the chiral shift parameter Delta, leading to a relative shift of the
longitudinal momenta i... | hep-ph |
Jet quenching phenomenology from soft-collinear effective theory with
Glauber gluons: We present the first application of a recently-developed effective theory of
jet propagation in matter SCETG to inclusive hadron suppression in
nucleus-nucleus collisions at the LHC. SCETG-based splitting kernels allow us
to go beyo... | hep-ph |
The Effect of Weak Interactions on the Ultra-Relativistic Bose-Einstein
Condensation Temperature: We calculate the ultra-relativistic Bose-Einstein condensation temperature of
a complex scalar field with weak lambda Phi^4 interaction. We show that at high
temperature and finite density we can use dimensional reductio... | hep-ph |
Has HERA reached a new QCD regime?: These notes are a summary of our efforts to answer the question in the title.
Our answer is in the affirmative as: (i) HERA data indicate a large value of
the gluon structure function; (ii) no contradictions with the asymptotic
predictions of high density QCD have been observed; and ... | hep-ph |
Electroweak and supersymmetric two-loop corrections to lepton anomalous
magnetic and electric dipole moments: Using the effective Lagrangian method, we analyze the electroweak corrections
to the anomalous dipole moments of lepton from some special two-loop diagrams
where a closed neutralino/chargino loop is inserted ... | hep-ph |
Nonequilibrium Chiral Dynamics and Effective Lagrangians: We review our recent work on Chiral Lagrangians out of thermal equilibrium,
which are introduced to analyse the pion gas formed after a Relativistic Heavy
Ion Collision. Chiral Perturbation Theory is extended by letting $\fpi$ be time
dependent and allows to des... | hep-ph |
Comment on the Theta+ width and mass: We discuss the relatively low mass and narrow width prediction for the exotic
baryon Theta+, and comment on recent statements by R.L. Jaffe on the subject.
We reaffirm that a narrow width of 3.6-11.2 MeV follows from the equations of
our 1997 paper. | hep-ph |
Positivity issues for the pinch-technique gluon propagator and their
resolution: Although gauge-boson propagators in asymptotically-free gauge theories
satisfy a dispersion relation, they do not satisfy the K\"allen-Lehmann (KL)
representation because the spectral function changes sign. We argue that this
is a simple... | hep-ph |
Discrete Symmetry, Neutrino Magnetic Moment and the 17 Kev Neutrino: The problem of generating large transition magnetic moments for nearly
massless neutrinos in a truly three--generation case is discussed. A model to
achieve the same by exploiting an octahedral symmetry is presented. The scheme
also accomodates a radi... | hep-ph |
Hadronic structure on the light-front VI. Generalized parton
distributions of unpolarized hadrons: We discuss the generalized parton distributions (GPDs) for unpolarized
hadrons, as a continuation of our recent work on hadronic structure on the
light front. We analyze the unpolarized GPDs for the light nucleon and de... | hep-ph |
Composite Higgs to two Photons and Gluons: We introduce a simple framework to estimate the composite Higgs boson
coupling to two-photon in Technicolor extensions of the standard model. The
same framework allows us to predict the composite Higgs to two-gluon process.
We compare the decay rates with the standard model on... | hep-ph |
The Gerasimov-Drell-Hearn sum rule and the infinite-momentum limit: We study the current-algebra approach to the Gerasimov-Drell-Hearn sum rule,
paying particular attention to the infinite-momentum limit. Employing the
order-alpha^2 Weinberg-Salam model of weak interactions as a testing ground, we
find that the legitim... | hep-ph |
Current correlators to all orders in the quark masses: The contributions to the coefficient functions of the quark and the mixed
quark-gluon condensate to mesonic correlators are calculated for the first time
to all orders in the quark masses, and to lowest order in the strong coupling
constant. Existing results on the... | hep-ph |
Cabibbo-favored $Λ^+_c\toΛa_{0}(980)^+$ decay in the final
state interaction: The anti-triplet charmed baryon decays with the light scalar mesons are
rarely measured, whereas the recent observation of the Cabibbo-favored
$\Lambda_c^+\to \Lambda\eta\pi^+$ decay hints a possible $\Lambda_c^+\to\Lambda
a_0(980)^+,a_0(98... | hep-ph |
The static potential in QCD to two loops: We evaluate the static QCD potential to two--loop order. Compared to a
previous calculation a sizable reduction of the two--loop coefficient $a_2$ is
found. | hep-ph |
Update of the Hagedorn mass spectrum: We present an update of the Hagedorn hypothesis of the exponential growth of
the number of hadronic resonances with mass. We use the newest available
experimental data for the non-strange mesons and baryons, as well as fill in
some missing states according to the observation that t... | hep-ph |
Limits on Cosmological Variation of Strong Interaction and Quark Masses
from Big Bang Nucleosynthesis, Cosmic, Laboratory and Oklo Data: Recent data on cosmological variation of the electromagnetic fine structure
constant from distant quasar (QSO) absorption spectra have inspired a more
general discussion of possible... | hep-ph |
Higgs Physics: These lectures review the background to Higgs physics, its current status
following the discovery of a/the Higgs boson at the LHC, models of Higgs
physics beyond the Standard Model and prospects for Higgs studies in future
runs of the LHC and at possible future colliders. | hep-ph |
Geometry of the neutrino mixing space: We study a geometric structure of a physical region of neutrino mixing
matrices as part of the unit ball of the spectral norm. Each matrix from the
geometric region is a convex combination of unitary PMNS matrices. The disjoint
subsets corresponding to a different minimal number o... | hep-ph |
Probing New Physics With b Decays: I discuss how b decays can be used to unravel new physics beyond the Standard
Model. Decays second order in the weak interaction involving loops and CP
violation are emphasized. This information is complementary to that obtainable
with higher energy machines. | hep-ph |
A screening mechanism for extra W and Z gauge bosons: We generalize a previous construction of a fermiophobic model to the case of
more than one extra $W$ and $Z$ gauge bosons. We focus in particular on the
existence of screening configurations and their implication on the gauge boson
mass spectrum. One of these config... | hep-ph |
A study of the resonances $K_{0}^{*}(800)$ and $K_{0}^{*}(1430)$: We study the scalar kaonic states $K_{0}^{\ast}(800)$ and
$K_{0}^{\ast}(1430)$ by using a relativistic QFT Lagrangian in which only a
single kaonic field corresponding to the well-established scalar state
$K_{0}^{\ast}(1430)$ is considered and in which b... | hep-ph |
A note on Higgs decays into $Z$ boson and $J/Ψ(Υ)$: Rare decays $h\to Z V$ with $V$ denoting the narrow $c\bar{c}$ or $b\bar{b}$
resonances, such as $J/\Psi$ or $\Upsilon$ states, have been analyzed. Within
the standard model, these channels may proceed through the tree-level
transition $h\to ZZ^*$ with the virtual $Z^... | hep-ph |
Axionic Mirage Mediation: In this talk, we propose a model of mirage mediation, in which Peccei-Quinn
symmetry is incorporated. In this \textit{axionic mirage mediation}, it is
shown that the Peccei-Quinn symmetry breaking scale is dynamically determined
around $10^{10}$ GeV to $10^{12}$ GeV due to the supersymmetry br... | hep-ph |
Deuteron Magnetic Quadrupole Moment From Chiral Effective Field Theory: We calculate the magnetic quadrupole moment (MQM) of the deuteron at leading
order in the systematic expansion provided by chiral effective field theory. We
take into account parity and time-reversal violation which, at the quark-gluon
level, resul... | hep-ph |
Predicting the Pion and Eta Masses as Quantum Corrections without Quark
Masses: This paper is removed because it used an approximation, which alters some of
the conclusions. Another paper will be written in the near future. | hep-ph |
Probing the Dark Matter of Three-loop Radiative Neutrino Mass Generation
Model with the Cherenkov Telescope Array: We investigate the prospect of detecting the Dark Matter (DM) candidate in
the three-loop radiative neutrino mass generation model extended with large
electroweak multiplets of the Standard Model (SM) ga... | hep-ph |
Probing initial geometrical anisotropy and final azimuthal anisotropy in
heavy-ion collisions at Large Hadron Collider energies through event-shape
engineering: Anisotropic flow is accredited to have effects from the initial state
geometry and fluctuations in the nuclear overlap region. The elliptic flow
($v_2$) an... | hep-ph |
Hadron-hadron collision mode in ReneSANCe-v1.3.0: We report an implementation of the hadron-hadron ($pp$ and $p\bar{p}$)
collision mode to the Monte Carlo event generator ReneSANCe - the code that was
previously developed for $e^+e^-$ collisions. The described extension of
ReneSANCe currently contains neutral and charg... | hep-ph |
Dissipative Effects on Reheating after Inflation: The inflaton must convert its energy into radiation after inflation, which,
in a conventional scenario, is caused by the perturbative inflaton decay. This
reheating process would be much more complicated in some cases: the decay
products obtain masses from an oscillatin... | hep-ph |
The connection between the DRED and NSVZ renormalisation schemes: We explore the relationship between the DRED and NSVZ schemes. Using certain
exact results for the soft scalar mass $\beta$-function, we derive the
transformation of $\alpha^{\DRED}$ to $\alpha^{\NSVZ}$ through terms of order
$\alpha^4$. We thus incident... | hep-ph |
Herwig++ 2.2 Release Note: A new release of the Monte Carlo program Herwig++ (version 2.2) is now
available. This version includes a number of improvements including: matrix
elements for the production of an electroweak gauge boson, W and Z, in
association with a jet; several new processes for Higgs production in
assoc... | hep-ph |
Late decaying 2-component dark matter scenario as an explanation of the
AMS-02 positron excess: The long standing anomaly in the positron flux as measured by the PAMELA and
AMS-02 experiments could potentially be explained by dark matter (DM)
annihilations. This scenario typically requires a large "boost factor" to b... | hep-ph |
Testing collinear factorization and nuclear parton distributions with pA
collisions at the LHC: Global perturbative QCD analyses, based on large data sets from
electron-proton and hadron collider experiments, provide tight constraints on
the parton distribution function (PDF) in the proton. The extension of these
ana... | hep-ph |
Collisions and collective flavor conversion: Integrating out the fast
dynamics: In dense astrophysical environments, notably core-collapse supernovae and
neutron star mergers, neutrino-neutrino forward scattering can spawn flavor
conversion on very short scales. Scattering with the background medium can
impact collec... | hep-ph |
Effective Theory for Heavy Quarkonia Decays: An effective theory approach to heavy quarkonia decays based on the $1/m_Q$
expansion is introduced. Its application to decays in which the two heavy
quarks annihilate is discussed. | hep-ph |
Inverse Primakoff Scattering for Axionlike Particle Coupling: Axionlike particles (ALPs) can be produced in the Sun, and are considered
viable candidates for the cosmological dark matter (DM). It can decay into two
photons or interact with matter. We identify new inelastic channels of inverse
Primakoff processes due to... | hep-ph |
Multi-color QCD at High Energies and Exactly Solvable Lattice Theories: We examine the generalized leading-logarithmic approximation (LLA) equations
for compound states of n-reggeized gluons. It is shown that in multi-color QCD,
when $N_c \rightarrow \infty$, these equations have a sufficient number of
conservation law... | hep-ph |
Resonances in a sudden chemical freeze-out model: The prediction for $p_T$ spectra of various resonances produced in Pb+Pb
collisions at 2.76 TeV at the LHC in equilibrium and non-equilibrium models is
made. It includes the $\eta$, $\rho$(770), $\Sigma$(1385), $\Lambda$(1520), and
$\Xi$(1530). The apparent differences ... | hep-ph |
Rare Z-decay into light pseudoscalar bosons in the simplest little Higgs
model: The simplest little Higgs model predicts a light pseudoscalar boson $\eta$
and opens up some new decay modes for $Z$-boson, such as $Z \to \bar{f} f
\eta$, $Z\to \eta\eta\eta$, $Z\to \eta\gamma$ and $Z\to \eta gg$. We examine
these decay ... | hep-ph |
NNLO QCD$\oplus$QED corrections to Higgs production in bottom quark
annihilation: We present next-to-next-to leading order (NNLO) quantum electrodynamics (QED)
corrections to the production of the Higgs boson in bottom quark annihilation
at the Large Hadron Collider (LHC) in the five flavor scheme. We have
systematic... | hep-ph |
Photoproduction of $a_{2}(1320)$ in a Regge model: In this work, the photoproduction of $a_{2}(1320)$ off a proton target is
investigated within an effective Lagrangian approach and the Regge model. The
theoretical result indicates that the shapes of {the} total and differential
cross sections of the $\gamma p\rightarr... | hep-ph |
Quark distributions in polarized rho meson and its comparison with those
in pion: Valence quark distributions in transversally and longitudinally polarizied
rho mesons in the region of intermediate x are obtained by generalizied QCD sum
rules. Power corrections up to d=6 are taken into account. Comparison of the
resu... | hep-ph |
The T7 flavor symmetry in 3-3-1 model with neutral leptons: We construct a 3-3-1 model based on non-Abelian discrete symmetry $T_7$
responsible for the fermion masses. Neutrinos get masses from only anti-sextets
which are in triplets $\underline{3}$ and $\underline{3}^*$ under $T_7$. The
flavor mixing patterns and mass... | hep-ph |
On holographic relation between radial meson trajectories and
deconfinement temperature: The interrelation between the deconfinement temperature of hadron medium and
parameters of radial Regge trajectories within the bottom-up holographic models
for QCD is scrutinized. We show that the lattice data on the deconfineme... | hep-ph |
Improving NLO-parton shower matched simulations with higher order matrix
elements: In recent times the algorithms for the simulation of hadronic collisions have
been subject to two substantial improvements: the inclusion, within parton
showering, of exact higher order tree level matrix elements (MEPS) and,
separately... | hep-ph |
Supersymmetric Large Extra Dimensions Are Small and/or Numerous: Recently, a scenario has been proposed in which the gravitational scale could
be as low as the TeV scale, and extra dimensions could be large and detectable
at the electroweak scale. Although supersymmetry is not a requirement of this
scenario, it is neve... | hep-ph |
The study of the negative pion production in neutron-proton collisions
at beam momenta below 1.8 GeV/c: A detailed investigation of the reaction np -> pp\pi^{-} has been carried out
using the data obtained with the continuous neutron beam produced by charge
exchange scattering of protons off a deuterium target. A par... | hep-ph |
Neutrino interactions with a weak slowly varying electromagnetic field: We derive the effective action for processes involving two neutrinos and two
photons at energies much below the electron mass. We discuss several
applications in which one or both photons are replaced by external fields. In
particular, Cherenkov ra... | hep-ph |
Comment on astrophysical consequences of a neutrinophilic 2HDM: Several authors have pointed out that the scalar-mediated interaction of
neutrinos in a neutriophilic two-Higgs-doublet model (nu2HDM) can be as strong
as electromagnetic interaction [1-3]. We show that the coupling constants of
neutrino-scalar interaction... | hep-ph |
The Supersymmetric Standard Model, with a Brout-Englert-Higgs boson as
spin-0 partner of the Z: Supersymmetric extensions of the standard model lead us to expect
superpartners for all particles, spin-0 squarks and sleptons and spin-1/2
gluinos, charginos and neutralinos, with an odd R-parity making the lightest
one s... | hep-ph |
Constraining Sterile Neutrino Interpretations of the LSND and MiniBooNE
Anomalies with Coherent Neutrino Scattering Experiments: Results from the LSND and MiniBooNE experiments have been interpreted as
evidence for a sterile neutrino with a mass near the electronvolt scale. Here
we propose to test such a scenario by ... | hep-ph |
General Issues Connecting Flavor Symmetry and Supersymmetry: We motivate and construct supersymmetric theories with continuous flavor
symmetry, under which the electroweak Higgs doublets transform non-trivially.
Flavor symmetry is spontaneously broken at a large mass scale in a sector of
gauge-singlet fields; the light... | hep-ph |
Gauge dependence of the on-shell renormalized mixing matrices: It was recently pointed out that the on-shell renormalization of the
Cabibbo-Kobayashi-Maskawa (CKM) matrix in the method by Denner and Sack causes
a gauge parameter dependence of the amplitudes. We analyze the gauge dependence
of the on-shell renormalizati... | hep-ph |
Distinguishing magnetic moment from oscillation solutions of the solar
neutrino problem with Borexino: Assuming that the observed deficit of solar neutrinos is due to the
interaction of their transition magnetic moment with the solar magnetic field
we derive the predictions for the forthcoming Borexino experiment. Th... | hep-ph |
Heavy hybrid mesons in the QCD sum rule: We study the spectra of the hybrid mesons containing one heavy quark
($q\bar{Q}g$) within the framework of QCD sum rules in the heavy quark limit.
The derived sum rules are stable with the variation of the Borel parameter
within their corresponding working ranges. The extracted ... | hep-ph |
MSSM at future Higgs factories: In this work, we study the implication of Higgs precision measurements at
future Higgs factories on the MSSM parameter space, focusing on the dominant
stop sector contributions. We perform a multi-variable fit to both the signal
strength for various Higgs decay channels at Higgs factorie... | hep-ph |
Test of beta and antineutrino spectra symmetry in beta-decay: The mechanism of beta decay in nature is not understood yet. Mirrored energy
spectra of electron and antineutrino can clarify the situation. A special
experiment is needed to measure antineutrino spectrum from known beta-decaying
isotope to compare it with t... | hep-ph |
Color-Octet $ψ'$ Production at Low $p_\perp$: We study contributions from color-octet quarkonium formation mechanisms to
$p_\perp$-integrated $\psi'$ production cross sections in pion-nucleon
reactions. The observed polarization of the $\psi'$ is not reproduced by the
lowest-order leading-twist color-singlet and color-... | hep-ph |
B-Mesons on the Transverse Lattice: We present results from a first study of $B$-mesons that is based on a
transverse lattice formulation of light-front QCD. The shape of the Isgur-Wise
form factor is in very good agreement with experimental data. However, the
calculations yield rather large values for $f_B$ and $\bar{... | hep-ph |
Seesaw and the Riddle of Mass: The prediction of small neutrino masses through the Seesaw Mechanism and
their subsequent measurement suggests that the natural cut-off of the Standard
Model is very high indeed. The recent neutrino data must be interpreted as a
reflection of physics at very high energy. We examine their ... | hep-ph |
Neutrino Oscillometry: Neutrino oscillations are studied employing sources of low energy
monoenergetic neutrinos following electron capture by the nucleus and measuring
electron recoils. Since the neutrino energy is very low the oscillation length
appearing in this electronic neutrino disappearance experiment can be so... | hep-ph |
Jet grooming through reinforcement learning: We introduce a novel implementation of a reinforcement learning (RL)
algorithm which is designed to find an optimal jet grooming strategy, a
critical tool for collider experiments. The RL agent is trained with a reward
function constructed to optimize the resulting jet prope... | hep-ph |
Polarization puts a New Spin on Physics: Polarization and spin effects are useful for probing the Standard Model, in
both the electroweak sector and the strong sector, where the spin decomposition
of the nucleon is still a hot topic, with important new data on the net
polarizations of the gluon and the strange quarks. ... | hep-ph |
High energy photon production in strong colliding laser beams: The collision of two intense, low-frequency laser beams is considered. The
$e^-e^+$ pairs created in this field are shown to exhibit recollisions, which
take place at high energy accumulated due to the wiggling of fermions. The
resulting $e^-e^+$ annihilati... | hep-ph |
Out-of-Equilibrium Photon Production in the Late Stages of Relativistic
Heavy-Ion Collisions: In this work, we assess the importance of non-equilibrium dynamics in the
production of photons from the late stages of relativistic heavy-ion
collisions. The p$_\mathrm{T}$-differential spectra and $v_2$ of photons from
the... | hep-ph |
Measuring Slepton Masses and Mixings at the LHC: Flavor physics may help us understand theories beyond the standard model. In
the context of supersymmetry, if we can measure the masses and mixings of
sleptons and squarks, we may learn something about supersymmetry and
supersymmetry breaking. Here we consider a hybrid g... | hep-ph |
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