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相关论文: Semileptonics at High-$p_T$

200 篇论文

We study higher twist corrections to the perturbative QCD cross sections for ep deep inelastic scattering and the Drell-Yan lepton pair production in pp collision. The corrections arise due to the initial state interaction of the active…

高能物理 - 唯象学 · 物理学 2009-11-10 O. Linnyk , S. Leupold , U. Mosel

We discuss the relation between the ratio of the proton-deuteron (pd) Drell-Yan cross section to the proton-proton (pp) one \Delta_{(T)} \sigma_{pd}/2 \Delta_{(T)} \sigma_{pp} and the flavor asymmetry in polarized light-antiquark…

高能物理 - 唯象学 · 物理学 2009-10-31 S. Kumano , M. Miyama

The complete electroweak radiative O(\alpha) corrections to the Drell-Yan process at large invariant dimuon mass have been studied. All formulas for the cross sections and kinematical restrictions are presented in explicit form, for the…

高能物理 - 唯象学 · 物理学 2007-05-23 Vladimir A. Zykunov

We predict the triple differential cross section of the unpolarized Drell-Yan process at sqrt(S)=6 GeV. The model incorporates primordial parton transverse momentum and quark off-shellness effects caused by the initial state interaction.

高能物理 - 唯象学 · 物理学 2009-11-11 O. Linnyk , S. Leupold , U. Mosel

We present phenomenological results for the inclusive cross section for the production of a lepton-pair via virtual photon exchange at next-to-next-to-next-to-leading order (N$^3$LO) in perturbative QCD. In line with the case of Higgs…

高能物理 - 唯象学 · 物理学 2020-11-17 Claude Duhr , Falko Dulat , Bernhard Mistlberger

The transverse-momentum spectrum of Drell-Yan lepton pairs at small $p_T$ probes non-perturbative QCD effects, including intrinsic partonic transverse momentum and initial-state soft-gluon radiation. The novel approach PDF2ISR is employed…

高能物理 - 唯象学 · 物理学 2026-02-20 D. Subotić , H. Jung , A. V. Kotikov , N. Raičević

Precision measurements of the Drell-Yan (DY) cross section at the LHC constrain new physics scenarios that involve new states with electroweak (EW) charges. We analyze these constraints and apply them to models that can address the LHC…

高能物理 - 唯象学 · 物理学 2016-08-24 Florian Goertz , Andrey Katz , Minho Son , Alfredo Urbano

We study single lepton production from semileptonic decays of heavy flavor hadrons ($D,B\rightarrow~l$) in pp and p$A$ collisions at RHIC and the LHC within the saturation/Color-Glass-Condensate (CGC) framework. Using the gluon distribution…

高能物理 - 唯象学 · 物理学 2018-02-06 Hirotsugu Fujii , Kazuhiro Watanabe

We find constraints on R-Parity Violating (RPV) couplings of the minimal supersymmetric standard model, using Drell-Yan differential cross sections at the LHC. Specifically, we look at the constraints on $\lambda'LQD^c$ couplings from…

高能物理 - 唯象学 · 物理学 2019-05-29 Saurabh Bansal , Antonio Delgado , Christopher Kolda , Mariano Quiros

Theories with gapped continuum spectra have gotten some attention, either as pure 4D models like unparticles, or in 5D realizations as certain soft walls constructions. In this paper, we derive experimental bounds from Drell-Yan processes…

高能物理 - 唯象学 · 物理学 2024-01-17 Ernesto Arganda , Antonio Delgado , Adam Martin , Eugenio Megias , Roberto Morales , Mariano Quiros , Torrey Saxton

We first review the general framework which enables one to resum high-energy logarithms in hadronic processes, both in the evolution of parton densities and in the coefficient functions. We then present an all-order calculation in…

高能物理 - 唯象学 · 物理学 2010-11-26 Simone Marzani

We show that massive lepton-pair production, the Drell-Yan process, should be a good source of independent constraints on the polarized gluon density, free from the experimental and theoretical complications of photon isolation that beset…

高能物理 - 唯象学 · 物理学 2014-11-17 Edmond L. Berger , Lionel E. Gordon , Michael Klasen

The breaking of the Lam-Tung relation in the Drell-Yan process at the LHC exhibits a long-standing tension with the Standard Model (SM) prediction at $\mathcal{O}(\alpha_s^3)$ accuracy. This tension could be explained by weak dipole…

高能物理 - 唯象学 · 物理学 2025-03-25 Guanghui Li , Xu Li , Bin Yan

Production of a forward Drell-Yan lepton pair accompanied by a jet separated by a large rapidity interval is proposed to study the BFKL evolution at the LHC. Several observables to be measured are presented including the azimuthal angle…

高能物理 - 唯象学 · 物理学 2022-12-06 Krzysztof Golec-Biernat , Leszek Motyka , Tomasz Stebel

Motivated by the study of heavy-light meson production within the framework of heavy quark effective theory (HQET) factorization, we extend the factorization formalism for a rather complicated process $W^+\to B^+\ell^+\ell^-$ in the limit…

高能物理 - 唯象学 · 物理学 2024-08-07 Saadi Ishaq , Sajawal Zafar , Abdur Rehman , Ishtiaq Ahmed

The contribution of the sub-process $\gamma q \to q' l_1\bar{l}_2$ in hadron-hadron interactions is considered. It is a part of one-loop electroweak radiative corrections for the Drell-Yan production of lepton pairs at hadron colliders. It…

高能物理 - 唯象学 · 物理学 2008-11-26 A. B. Arbuzov , R. R. Sadykov

Employing the framework of the Standard Model Effective Field Theory, we perform a detailed reinterpretation of measurements of the Weinberg angle in dilepton production as a search for new-physics effects. We truncate our signal prediction…

高能物理 - 唯象学 · 物理学 2019-09-04 Stefan Alte , Matthias König , William Shepherd

We discuss the emission of high momentum lepton pairs in central Au+Au collisions at RHIC ($\sqrt{s_{NN}}=$200 GeV) and Pb+Pb collisions at the LHC ($\sqrt{s_{NN}}=$5500 GeV). Yields of dileptons produced through interactions of jets with…

高能物理 - 唯象学 · 物理学 2008-11-26 Simon Turbide , Charles Gale , Dinesh K. Srivastava , Rainer J. Fries

We discuss about a recent computation of the mixed QCD--EW corrections to the hadroproduction of a massive charged lepton plus the corresponding neutrino through the Drell--Yan mechanism. The calculation, based on an extension of the $q_T$…

高能物理 - 唯象学 · 物理学 2021-11-01 Luca Buonocore

We developed the new parton model approach for exclusive semileptonic decays of $B$-meson to $D,~D^*$ by extending the inclusive parton model, and by combining with the results of the HQET, motivated by Drell-Yan process. Without the…

高能物理 - 唯象学 · 物理学 2007-05-23 C. S. Kim , Jae Kwan Kim , Yeong Gyun Kim , Kang Young Lee