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相关论文: NRQCD Re-Confronts LHCb Data on Quarkonium Product…

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The production of K^0_S mesons and Lambda baryons in quark and gluon jets has been investigated using two complementary techniques. In the first approach, which provides high statistical accuracy, jets were selected using different jet…

高能物理 - 实验 · 物理学 2008-11-26 The OPAL Collaboration , K. Ackerstaff et al

When the LHC starts its operation, CMS will have a unique opportunity to study q uarkonium production in pp collisions and later in PbPb collisions. Here we report on the methods and plans for measuring the differential pT Jpsi->mu+mu-…

高能物理 - 实验 · 物理学 2019-08-13 Z. Yang , A. C. Kraan

Hard processes in collider experiments typically produce QCD jets, which have long served as precision tests of QCD in the vacuum. More recently, heavy-ion programs at RHIC and the LHC have offered a novel perspective on jets, establishing…

高能物理 - 唯象学 · 物理学 2025-10-01 Yacine Mehtar-Tani

We reconsider quarkonium production in a field-theoretical setting and we show that the lowest-order mechanism for heavy-quarkonium production receives in general contributions from two different cuts. The first one corresponds to the usual…

高能物理 - 唯象学 · 物理学 2009-11-11 J. P. Lansberg , J. R. Cudell , Yu. L. Kalinovsky

We considered the three jet production processes in the region of the incident lepton, photon, quark or gluon fragmentation. The fourth jet is created by the recoil proton. The kinematics of jet production is discussed in jets production in…

高能物理 - 唯象学 · 物理学 2015-06-18 Azad I. Ahmadov , Eduard A. Kuraev

We investigate the inclusive production of prompt J/psi mesons in polarized hadron-hadron and photon-hadron collisions in the factorization formalism of NRQCD. Numerical results are presented for BNL RHIC-Spin and the approved SLAC…

高能物理 - 唯象学 · 物理学 2007-05-23 M. Klasen , B. A. Kniehl

At the Large Hadron Collider (LHC) it will become possible for the first time to investigate experimentally the forward region in hadron-hadron collisions via high-$p_T$ processes. In the LHC forward kinematics QCD logarithmic corrections…

高能物理 - 唯象学 · 物理学 2009-11-05 M. Deak , F. Hautmann , H. Jung , K. Kutak

We discuss jet production at forward rapidities at the LHC. In this region QCD logarithmic corrections in the hard transverse momentum and in the large rapidity interval may both be quantitatively significant. We describe results of using…

高能物理 - 唯象学 · 物理学 2009-08-14 M. Deak , F. Hautmann , H. Jung , K. Kutak

The study of the shape and sub-structure of high p_T jets produced in hadron collisions is becoming an increasingly important component of LHC phenomenology in the context of new particle discoveries. We study here the state of the art for…

高能物理 - 唯象学 · 物理学 2010-11-19 Mrinal Dasgupta

In this paper, we study the production of isolated-photon plus a jet in $pp$ and $PbPb$ collisions, which can be used as an important probe to the jet transport property in quark gluon plasma created in heavy ion collisions. Normally, there…

高能物理 - 唯象学 · 物理学 2018-08-01 Lin Chen , Guang-You Qin , Lei Wang , Shu-Yi Wei , Bo-Wen Xiao , Han-Zhong Zhang , Ya-Qi Zhang

Cross sections of the heavy quarkonium production process $e^+e^-\to H + \gamma$ at the c.m. energy of $Z^0$-boson resonance are calculated at leading order in $\alpha_s$ with relativistic corrections resummed within the framework of…

高能物理 - 唯象学 · 物理学 2024-06-11 Anton Trunin

Quarkonium production is an excellent probe to investigate the properties of the hot and dense medium, which can be created in heavy-ion collisions. The production and hadronisation of heavy quarks are well separated in the space-time…

核实验 · 物理学 2018-11-28 Markus K. Koehler

Exploiting the substructure of jets observed at the LHC to better understand and interpret the experimental data has recently been a very active area of research. In this thesis we study the substructure of high-p$_T$ QCD jets, which form a…

高能物理 - 唯象学 · 物理学 2021-11-23 Kamel Khelifa-Kerfa

It has recently been noticed that heavy quark ($Q$) and gluon ($g$) fragmentation to heavy quarkonium states ($Q\bar{Q}$) can be calculated in perturbative QCD. This technique allows for the inclusion of a subset of higher order corrections…

高能物理 - 唯象学 · 物理学 2007-05-23 Michael A. Doncheski

We discuss results for di-boson plus two jets production processes at the LHC at NLO QCD. Issues related to the scale choice are reviewed. We focus on the distributions of the invariant mass and rapidity separation of the two hardest jets…

高能物理 - 唯象学 · 物理学 2014-10-15 Francisco Campanario , Matthias Kerner , Le Duc Ninh , Dieter Zeppenfeld

We present the calculation of the cross section for Higgs boson production in association with a top quark pair plus one jet, at next-to-leading-order (NLO) accuracy in QCD. All mass dependence is retained without recurring to any…

高能物理 - 唯象学 · 物理学 2014-11-19 Hans van Deurzen , Gionata Luisoni , Pierpaolo Mastrolia , Edoardo Mirabella , Giovanni Ossola , Tiziano Peraro

By coupling the Boltzmann transport equations of both quarkonium and open heavy quarks, we investigate their dynamical evolution inside the quark-gluon plasma and study quarkonium production in heavy ion collisions. The Boltzmann transport…

高能物理 - 唯象学 · 物理学 2019-02-20 Xiaojun Yao , Weiyao Ke , Yingru Xu , Steffen Bass , Berndt Müller

The recent development of perturbative QCD (PQCD) fragmentation functions has strong impact on quarkonium production. I shall summarize $B_c$ meson production based on these PQCD fragmentation functions, as well as, the highlights of some…

高能物理 - 唯象学 · 物理学 2007-05-23 Kingman Cheung

We review the current status of heavy quarkonium production phenomenology based on nonrelativistic effective field theories, focusing on spin-triplet $S$-wave states such as $J/\psi$, $\psi(2S)$, and $\Upsilon$. We present some…

高能物理 - 唯象学 · 物理学 2022-11-21 Hee Sok Chung

We report the current understanding of heavy quarkonium production at high transverse momentum ($p_T$) in hadronic collisions in terms of QCD factorization. In this presentation, we highlight the role of subleading power corrections to…

高能物理 - 唯象学 · 物理学 2023-01-11 Kyle Lee , Jian-Wei Qiu , George Sterman , Kazuhiro Watanabe