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Using an effective-theory approach, we analyze the impact of BR(Bs to mu+ mu-) in constraining new-physics models that predict modifications of the Z-boson couplings to down-type quarks. Under motivated assumptions about the flavor…

高能物理 - 唯象学 · 物理学 2013-12-05 Diego Guadagnoli , Gino Isidori

Nonperturbative effects in $D$-meson production in pion-nucleon and proton-nucleon collisions are investigated within the recombination model. The coalescence of perturbatively created charm quarks with sea- and valence-quarks from…

高能物理 - 唯象学 · 物理学 2009-11-10 R. Rapp , E. V. Shuryak

The measurement of the nuclear modification factor ($R_{\rm AA}$) for heavy-flavor production in heavy-ion collisions tests predictions for cold- and hot-nuclear-matter effects. Heavy-flavor production in \pp\ collisions tests pQCD…

核实验 · 物理学 2019-08-13 K. F. Read

By the analysis of the world data base of elastic electron scattering on the proton and the neutron (for the latter, in fact, on $^2H$ and $^3He$) important experimental insights have recently been gained into the flavor compositions of…

高能物理 - 唯象学 · 物理学 2017-03-08 Martin Rohrmoser , Ki-Seok Choi , Willibald Plessas

In this work, we focus on the possible linear relation between short-range correlations (SRCs) and the EMC effect for partons in nuclei. First, we test a linear relationship pertaining to gluons in bound nuclei; it is manifested as a…

高能物理 - 唯象学 · 物理学 2026-01-21 Shu-Man Hu , Wei Wang , Ji Xu , Xing-Hua Yang , Shuai Zhao

The off-shell behaviors of bound nucleons in deep inelastic lepton nucleus scattering are discussed in two scenarios with the basic constituents chosen to be baryon-mesons and quark-gluons respectively in light-cone formalism. It is found…

核理论 · 物理学 2012-06-26 Bo-Qiang Ma

Flavour-changing neutral-current interactions of the top quark can be searched for in top-quark pair production with one top quark decaying to an up-type quark and a neutral boson, and they can be searched for in the single production of a…

Within the framework of the Einstein-Maxwell-Dilaton (EMD) model, which incorporates information on the equation of state and baryon number susceptibility from lattice results, we have conducted a comprehensive analysis of the potential…

高能物理 - 唯象学 · 物理学 2024-10-08 Xi Guo , Xun Chen , Dong Xiang , Miguel Angel Martin Contreras , Xiao-Hua Li

Based on our recent NNLO dynamical parton distributions as obtained in the `fixed flavor number scheme', we generate radiatively parton distributions in the `variable flavor number scheme' where also the heavy quark flavors (c,b,t) become…

高能物理 - 唯象学 · 物理学 2009-12-30 P. Jimenez-Delgado , E. Reya

Measurements of electroweak-bosons in heavy-ion collisions with ALICE are reported. They are measured at large rapidities, via their (di)muonic decay: Z $\rightarrow \mu^+ \mu^-$ and W$^\pm \rightarrow \mu^\pm \nu$. The Z production and…

核实验 · 物理学 2019-10-11 Guillaume Taillepied

The EMC effect is studied by using the GLR-MQ-ZSR equation with minimum number of free parameters, where the nuclear shadowing effect is a dynamical evolution result of the equation, and nucleon swelling and Fermi motion in the nuclear…

高能物理 - 唯象学 · 物理学 2014-09-11 Xurong Chen , Jianhong Ruan , Rong Wang , Pengming Zhang , Wei Zhu

Quark and lepton flavor physics presents us with a basic question: Can we understand the pattern of masses and mixings of the known quarks and leptons, and how do present and proposed measurements help to advance that goal? Topics discussed…

高能物理 - 唯象学 · 物理学 2013-10-02 Jonathan L. Rosner

Using Soft-Collinear Effective Theory, we develop the transverse-momentum-dependent factorization formalism for heavy flavor dijet production in polarized-proton-electron collisions. We consider heavy flavor mass corrections in the…

高能物理 - 唯象学 · 物理学 2022-12-06 Zhong-Bo Kang , Jared Reiten , Ding Yu Shao , John Terry

We present a model-independent method of dealing with fermion flavor mixing in the case when instead of constant, momentum-independent mass matrices one has rather momentum-dependent self-energies. This situation is typical for strongly…

高能物理 - 唯象学 · 物理学 2012-02-03 Petr Benes

Open heavy flavor and quarkonium are unique probes of the hot-dense medium produced in heavy-ion collisions. Their production in p+p collisions also provide important test of QCD. In this paper, we review the selected results on open heavy…

核实验 · 物理学 2021-05-26 Zebo Tang , Wangmei Zha , Yifei Zhang

A charged Higgs boson is a clear signal for an extended Higgs sector, as for example predicted by supersymmetry. Squark mixing can significantly change the pattern of charged-Higgs production and most notably circumvent the chiral…

高能物理 - 唯象学 · 物理学 2008-11-26 Stefan Dittmaier , Gudrun Hiller , Tilman Plehn , Michael Spannowsky

A brief survey of the role of heavy flavors as a probe of the state of matter produced by high energy heavy ion collisions is presented. Specific examples include energy loss, initial state gluon saturation, thermalization and flow. The…

高能物理 - 唯象学 · 物理学 2009-11-10 R. L. Thews

We analyse diffractive weak boson production in $pp$ collisions. We show that the measurement of $W$ boson production asymmetry in the diffractive $pp$ collisions is a valuable method to test the concept of the flavour symmetric pomeron…

高能物理 - 唯象学 · 物理学 2014-11-20 Agnieszka Luszczak

The electromagnetic structure of the baryons is modified in the nuclear medium. The modifications can be inferred from the comparison between the electromagnetic form factors in medium with the respective form factor in vacuum. Of…

高能物理 - 唯象学 · 物理学 2021-10-28 G. Ramalho , K. Tsushima , J. P. B. C. de Melo

The LHC data on the forward heavy flavour hadron production can be a new unique source for estimation of intrinsic charm and bottom contributions to the proton. For example, we analyze the forward heavy baryon production, namely…

高能物理 - 唯象学 · 物理学 2015-06-05 G. I. Lykasov , V. A. Bednyakov , A. F. Pikelner , N. I. Zimin