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Measurements of event-ensemble mean transverse momentum $\langle p_t \rangle$ vs charged-hadron multiplicity $n_{ch}$ for $p_t$ spectra from 5 TeV p-Pb and 2.76 TeV Pb-Pb collisions and from p-p collisions for several energies have been…

高能物理 - 唯象学 · 物理学 2015-06-19 Thomas A. Trainor

A two-component (soft + hard) model (TCM) of hadron production in yields and spectra derived from the charge-multiplicity dependence of 200 GeV p-p collisions at the relativistic heavy ion collider (RHIC) is extended to describe p-p…

高能物理 - 唯象学 · 物理学 2017-06-28 Thomas A. Trainor

A recent study of 5 TeV $p$-Pb centrality combined a Glauber model of $p$-Pb collision geometry with an assumption of linear scaling between $n_{ch}$ (charge) integrated within some $\eta$ acceptance and the number of nucleon participants…

高能物理 - 唯象学 · 物理学 2018-01-19 Thomas A. Trainor

The ALICE collaboration at the large hadron collider (LHC) recently reported high-statistics $p_t$ spectrum data from 5 TeV and 13 TeV $p$-$p$ collisions. Particle data for each energy were partitioned into event classes based on the total…

高能物理 - 唯象学 · 物理学 2021-04-26 Thomas A. Trainor

Collectivity, as interpreted to mean flow of a dense medium in high-energy A-A collisions described by hydrodynamics, has been attributed to smaller collision systems -- p-A and even p-p collisions -- based on recent analysis of LHC data.…

高能物理 - 唯象学 · 物理学 2018-03-14 Thomas A. Trainor

This is the second part of a two-part article on precision modeling of identified-hadron (PID) $p_t$ spectra from 5 TeV $p$-Pb collisions. In Part I a revised two-component (soft + hard) model (TCM) of PID spectra was introduced, an…

高能物理 - 唯象学 · 物理学 2021-12-24 Thomas A. Trainor

The $p$-Pb collision system occupies a unique position regarding physical interpretation of high-energy particle data. More-peripheral $p$-Pb is indistinguishable from $p$-$p$ collision while more-central $p$-Pb overlaps an interval of…

高能物理 - 唯象学 · 物理学 2021-12-24 Thomas A. Trainor

In preparation for the heavy ion program at the relativistic heavy ion collider (RHIC) $d$-Au collisions were designated as a control experiment for possible discovery of a quark-gluon plasma (QGP) in more-central Au-Au collisions, and…

高能物理 - 唯象学 · 物理学 2020-01-14 Thomas A. Trainor

Identified-hadron spectra from 2.76 TeV Pb-Pb and $p$-$p$ collisions are analyzed via a two-component (soft + hard) model (TCM) of hadron production in high-energy nuclear collisions. The object of study is evidence for jet suppression in…

高能物理 - 唯象学 · 物理学 2025-12-16 Thomas A. Trainor

The PYTHIA Monte Carlo (PMC), first introduced more than thirty years ago, remains a popular simulation tool both for analysis of $p$-$p$ collision dynamics and for detector design and calibration. The PMC assumes that almost all produced…

高能物理 - 唯象学 · 物理学 2019-07-24 Thomas A. Trainor

In a recent analysis of high-statistics $p_t$ spectra from 5 and 13 TeV $p$-$p$ collisions a two-component (soft+hard) model (TCM) of hadron production near midrapidity, based on fixed model functions independent of collision multiplicity…

高能物理 - 唯象学 · 物理学 2021-07-26 Thomas A. Trainor

Identified-hadron (PID) spectra from 2.76 TeV Pb-Pb and $p$-$p$ collisions are analyzed via a two-component (soft + hard) model (TCM) of hadron production in high-energy nuclear collisions. The PID TCM is adapted with minor changes from a…

高能物理 - 唯象学 · 物理学 2020-01-13 Thomas A. Trainor

The PYTHIA Monte Carlo (PMC) has been applied broadly to simulations of high-energy $p$-$p$ and $p$-$\bar p$ collisions. The PMC is based on several assumptions, such as that most hadrons result from jet production (multiple parton…

高能物理 - 唯象学 · 物理学 2019-05-22 Thomas A. Trainor

A parametrized mathematical model is required to extract the information carried by transverse momentum $p_t$ spectra from high-energy nuclear collisions and subject it to physical interpretation in terms of possible hadron production…

高能物理 - 唯象学 · 物理学 2024-01-09 Thomas A. Trainor

Identified-hadron (PID) spectra from 2.76 TeV Pb-Pb and $p$-$p$ collisions are analyzed via a two-component (soft + hard) model (TCM) of hadron production in high-energy nuclear collisions. The Pb-Pb TCM is adopted with minor changes from a…

高能物理 - 唯象学 · 物理学 2025-12-09 Thomas A. Trainor

Identified-hadron (PID) $p_t$ spectra from 13 TeV $p$-$p$ collisions are compared with a two-component (soft+hard) model (TCM) that accurately distinguishes jet-related hadron production (hard component) from nonjet projectile-nucleon…

高能物理 - 唯象学 · 物理学 2022-10-13 Thomas A. Trainor

We investigate charged-hadron production in relativistic heavy-ion collisions of asymmetric systems within a nonequilibrium-statistical framework. Calculated centrality-dependent pseudorapidity distributions for p-Pb collisions at…

高能物理 - 唯象学 · 物理学 2024-11-05 Philipp Schulz , Georg Wolschin

In this paper, the centrality dependent $\Zn$ and $\Wpm$ production and the isospin effect in $\Wpm$ production are investigated with a parton and hadron cascade model PACIAE in Pb--Pb collisions at $\sNN=5.02$~TeV. ALICE data of $\Zn$…

高能物理 - 唯象学 · 物理学 2022-01-25 Dai-Mei Zhou , Yu-Liang Yan , Liang Zheng , Ming-Rui Zhao , Xiao-Mei Li , Xiao-Ming Zhang , Gang Chen , An-Ke Lei , Ya-Qian Zhu , Xu Cai , Ben-Hao Sa

The started LHC heavy ion program makes it possible to probe new frontiers of the high temperature Quantum Chromodynamics. It is expected that the role of hard and semi-hard particle production processes may be significant at ultra-high…

高能物理 - 唯象学 · 物理学 2012-09-20 I. P. Lokhtin , A. V. Belyaev , L. V. Malinina , S. V. Petrushanko , E. P. Rogochaya , A. M. Snigirev

The transverse momentum spectra of seven identified hadrons produced in Pb+Pb collisions at $\sqrt{s_{NN}}=2.76$ and 5.02 TeV at the CERN Large Hadron Collider (LHC) have been investigated in the framework of the recombination model (RM).…

高能物理 - 唯象学 · 物理学 2021-07-16 Lilin Zhu , Hua Zheng , Rudolph C. Hwa
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