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Transverse momentum dependent parton densities in a proton from the generalized DAS approach
Published 2020-02-01“…Abstract We use the Bessel-inspired behavior of parton densities at small Bjorken x values, obtained in the case of the flat initial conditions for DGLAP evolution equations in the double scaling QCD approximation (DAS), to evaluate the transverse momentum dependent (TMD, or unintegrated) quark and gluon distribution functions in a proton. …”
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143
Unveiling new phases of the Standard Model Higgs potential
Published 2025-01-01“…We investigate the phase diagram as a function of the top quark pole mass and study the effect of new physics through a scalar singlet portal coupling. …”
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144
Holographic Schwinger Effect in a Confining D3-Brane Background with Chemical Potential
Published 2016-01-01Get full text
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145
πe3 Form Factor f- Near the Mass Shell
Published 2015-01-01“…A numerical estimate of the form factor yields a value two times higher than the previous estimate from the quark model. Off-shell form factors are known to be ambiguous because of the gauge dependence and the freedom in the parameterization of the fields. …”
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146
The QED nonfactorizable correction to the semileptonic charmed three-body B decays
Published 2024-12-01“…Abstract In this paper, the nonfactorizable photonic corrections to the effective four-fermion vertex for the $$\overline{B}$$ B ¯ $${\rightarrow }$$ → $$D^{({*})}$$ D ( ∗ ) $$+$$ + $${\ell }^{-}$$ ℓ - $$+$$ + $$\bar{\nu }_{\ell }$$ ν ¯ ℓ decays are considered at the quark level within SM, where $${\ell }$$ ℓ $$=$$ = e, $${\mu }$$ μ and $${\tau }$$ τ . …”
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147
Effective Natural Supersymmetry from the Yukawa Deflected Mediations
Published 2017-01-01“…The natural supersymmetry (SUSY) requires light (≤1 TeV) stop quarks, light sbottom quark, and gluinos. The first generation of squarks can be effectively larger than several TeV which does not introduce any hierarchy problem in order to escape the constraints from LHC. …”
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148
Gauge-Singlet Vector-Like Fermion Dark Matter, LHC Diphoton Rate, and Direct Detection
Published 2017-01-01“…We study a gauge-singlet vector-like fermion hidden sector dark matter model, in which the communication between the dark matter and the visible standard model sector is via the Higgs-portal scalar-Higgs mixing and also via a hidden sector scalar with loop-level couplings to two gluons and also to two hypercharge gauge bosons induced by a vector-like quark. We find that the Higgs-portal possibility is stringently constrained to be small by the recent LHC di-Higgs search limits, and the loop induced couplings are important to include. …”
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149
Production of Light Nuclei in Au+Au Collisions with the STAR BES-II Program
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150
Exploring SMEFT couplings using the forward–backward asymmetry in neutral current Drell–Yan production at the LHC
Published 2024-12-01“…Besides recovering earlier results on the $$A_{\textrm{FB}}$$ A FB sensitivity to parton distribution functions, we analyze the precision determination of Z-boson couplings to left-handed and right-handed u-quarks and d-quarks, and explore Beyond-Standard-Model contributions using the Standard Model Effective Field Theory (SMEFT) framework. …”
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151
Holographic Brownian Motion in Three-Dimensional Gödel Black Hole
Published 2014-01-01“…By using the AdS/CFT correspondence and Gödel black hole background, we study the dynamics of heavy quark under a rotating plasma. In that case we follow Atmaja (2013) about Brownian motion in BTZ black hole. …”
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152
GRB 130603B: No Compelling Evidence for Neutron Star Merger
Published 2015-01-01“…Moreover, SHB plus a kilonova can be produced also by the collapse of a compact star (neutron star, strange star, or quark star) to a more compact object due to cooling, loss of angular momentum, or mass accretion.…”
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153
Quarkonium Production and Proposal of the New Experiments on Fixed Target at the LHC
Published 2015-01-01“…The dissociation of quarkonium resonances produced in heavy ion collisions was suggested as a possible signal of the Quark-Gluon Plasma formation. At the CERN SPS, the anomalous suppression of the J/ψ production was observed in central Pb-Pb collisions by the NA50 collaboration. …”
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154
First D0 + D0 measurement in nucleus-nucleus collisions at SPS energies with NA61/SHINE
Published 2025-01-01“…In particular, charm mesons are of vivid interest in the context of the study of the nature of the phasetransition between confined hadronic matter and the quark-gluon plasma. Recently, the NA61/SHINE experimental setup was upgraded with a high spatial resolution Vertex Detector which enables the reconstruction of secondary vertices from open charm meson decays. …”
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155
Investigation of early magnetic field and angular momentum in ultrarelativistic heavy-ion collisions via D*+ spin alignment with ALICE
Published 2025-01-01“…In the presence of a large angular momentum and initial magnetic field, the charm quark can be polarized. Experimentally, the heavy-flavor polarization can be probed by measuring the spin density matrix element (ρ00) of spin-1 mesons such as D*+ mesons. …”
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156
Holographic drag force with translational symmetry breaking
Published 2024-12-01“…It will eventually be shown that at lower values of $$\alpha $$ α or $$\mu $$ μ (chemical potential), the transverse diffusion coefficient is larger than the longitudinal one, and the speed of the heavy quark has minimal impact on the ratio.…”
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157
Particle Production in Strong Electromagnetic Fields in Relativistic Heavy-Ion Collisions
Published 2013-01-01“…I demonstrate by explicit analytical calculation that after dropping by about one-two orders of magnitude during the first fm/c of plasma expansion, it freezes out and lasts for as long as quark-gluon plasma lives as a consequence of finite electrical conductivity of the plasma. …”
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158
Analyzing the speed of sound in neutron star with machine learning
Published 2024-12-01“…The change in sign of the trace anomaly hints towards a near-conformal matter at the centre of neutron stars, which may not necessarily be conformal quark matter.…”
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159
Long-Range Azimuthal Correlation, Entanglement, and Bell Inequality Violation by Spinning Gluons at the Large Hadron Collider
Published 2025-02-01“…The spinning gluon in these collisions will introduce substantial nonzero [Formula: see text] asymmetries in both Higgs boson and top quark pair productions, where [Formula: see text] is the azimuthal angle between the forward and backward energy correlators in the NEEC observables. …”
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160
Probes for 4th Generation Constituents of Dark Atoms in Higgs Boson Studies at the LHC
Published 2014-01-01“…However, the existence of the 4th generation quarks and leptons should influence the production and decay rates of Higgs boson and is ruled out by the experimental results of the Higgs boson searches at the LHC, if the Higgs boson coupling to 4th generation fermions is not suppressed. …”
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