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Related papers: Nuclear parton density modifications from low-mass…

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This paper investigates the electromagnetic production of lepton pairs with low transverse momentum in relativistic heavy ion collisions. We estimate the initial photons' transverse momentum contributions by employing models where the…

High Energy Physics - Phenomenology · Physics 2020-11-18 Spencer Klein , Al Mueller , Bo-Wen Xiao , Feng Yuan

We demonstrate that not only the production of virtual photons decaying into low-mass lepton pairs, but also the one of weak bosons at large transverse momenta is dominated by quark-gluon scattering. Measurements of these processes at the…

High Energy Physics - Phenomenology · Physics 2015-06-18 M. Klasen

An accurate knowledge of nuclear parton distribution functions (nPDFs) is an essential ingredient of high energy physics calculations when the processes are involving nuclei in the initial state. It is well known now that the prompt photon…

High Energy Physics - Phenomenology · Physics 2019-05-29 Muhammad Goharipour , S. Rostami

We analyze the role of nuclear modifications of parton distributions, notably, the nuclear shadowing and antishadowing corrections, in production of lepton pairs from decays of neutral electroweak gauge bosons in proton-lead and…

High Energy Physics - Phenomenology · Physics 2015-06-12 Vadim Guzey , Marco Guzzi , Pavel M. Nadolsky , Mark Strikman , Bowen Wang

The strong electromagnetic fields associated with high energy protons and nuclei may lead to exclusive photoproduction of vector mesons in proton-proton and nucleus-nucleus collisions at the LHC. This paper will discuss the expected cross…

High Energy Physics - Phenomenology · Physics 2007-05-23 Joakim Nystrand

The hadroproduction of lepton pairs with mass $Q$ and transverse momentum $Q_T$ can be described in perturbative QCD by the same partonic subprocesses as prompt photon production. We demonstrate that, like prompt photon production, lepton…

High Energy Physics - Phenomenology · Physics 2008-11-26 E. L. Berger , M. Klasen

We present a detailed study of prompt photon production cross section in heavy-ion collisions in the central rapidity region at energy of $\sqrt{s}=5.5$ TeV, appropriate to LHC experiment. We include the next-to-leading order radiative…

High Energy Physics - Phenomenology · Physics 2009-11-07 Jamal Jalilian-Marian , Kostas Orginos , Ina Sarcevic

We present results and predictions for the nuclear modification of the differential cross sections for inclusive light hadron and prompt photon production in minimum bias d+Au collisions at $\sqrt{s} = 200$ GeV and minimum bias p+Pb…

High Energy Physics - Phenomenology · Physics 2012-11-27 Zhong-Bo Kang , Ivan Vitev , Hongxi Xing

The prospects of measuring a single-differential dijet cross section during the proposed short proton-oxygen data taking at LHC Run 3 are studied using next-to-leading-order perturbative QCD predictions. With reasonable experimental cuts…

High Energy Physics - Phenomenology · Physics 2022-03-02 Petja Paakkinen

We study the potential of dijet photoproduction measurements at a future electron-ion collider (EIC) to better constrain our present knowledge of the nuclear parton distribution functions. Based on theoretical calculations at…

High Energy Physics - Phenomenology · Physics 2018-06-20 M. Klasen , K. Kovarik

We present a detailed phenomenological study of the associated production of a prompt photon and a heavy-quark jet (charm or bottom) in proton-nucleus (p-A) and nucleus-nucleus (A-A) collisions. The dominant contribution to the…

High Energy Physics - Phenomenology · Physics 2015-05-30 T. Stavreva , F. Arleo , I. Schienbein

We explore the possibility of observing Odderon exchange in proton--ion collisions at the LHC, via the ultraperipheral photoproduction of C-even mesons. As well as the signal, we consider in detail the principle backgrounds, due to…

High Energy Physics - Phenomenology · Physics 2019-02-27 L. A. Harland-Lang , V. A. Khoze , A. D. Martin , M. G. Ryskin

We argue that hadron production in coherent diffraction of proton on a heavy nucleus provides a very sensitive probe of the low-x QCD dynamics. This process probes the BFKL dynamics in proton and the non-linear gluon evolution in nucleus.…

High Energy Physics - Phenomenology · Physics 2008-11-26 Yang Li , Kirill Tuchin

The hadroproduction of lepton pairs with mass $Q$ and finite transverse momentum $Q_T$ is dominated by quark-gluon scattering in the region $Q_T > Q/2$. This feature provides a new independent method for constraining the gluon density with…

High Energy Physics - Phenomenology · Physics 2007-05-23 E. L. Berger , M. Klasen

In anticipating the upcoming proton-lead run at the LHC in the near future, we present predictions for the nuclear modification factor of transverse momentum spectrum of $Z^0$ production and transverse momentum broadening of vector boson…

High Energy Physics - Phenomenology · Physics 2013-04-09 Zhong-Bo Kang , Jian-Wei Qiu

The two-photon exclusive production of charged supersymmetric pairs at the LHC has a clean and unique signature - two very forward scattered protons and two opposite charged leptons produced centraly. For low-mass SUSY scenarios,…

High Energy Physics - Phenomenology · Physics 2015-05-14 K. Piotrzkowski , N. Schul

We analyze the photon-initiated processes for production of $ e ^ + e ^- $ pairs in proton-nucleus collisions at LHC energy, taking into account both elastic processes and proton dissociations in the low-mass region (LMR) and…

High Energy Physics - Phenomenology · Physics 2022-12-07 Barbara Linek , Marta Łuszczak , Wolfgang Schäfer , Antoni Szczurek

We calculate the photon production cross section arising from the hard scattering of partons in nucleon-nucleon collisions by taking into account the intrinsic parton transverse momentum distribution and the next-to-leading-order…

High Energy Physics - Phenomenology · Physics 2008-11-26 Cheuk-Yin Wong , Hui Wang

We discuss the transverse momentum distribution for the production of massive lepton-pairs in hadron reactions at fixed target and collider energies within the context of next-to-leading order perturbative quantum chromodynamics. For values…

High Energy Physics - Phenomenology · Physics 2014-11-17 Edmond L. Berger , Lionel E. Gordon , Michael Klasen

We study nuclear modification factors for single $D$ meson and semileptonic decay lepton $l$ ($=e,\mu$) production in minimum bias proton-nucleus (p$A$) collisions at the LHC in the color-glass-condensate (CGC) framework at leading order in…

High Energy Physics - Phenomenology · Physics 2018-02-06 Hirotsugu Fujii , Kazuhiro Watanabe
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