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Measurements of the centrality and rapidity dependence of inclusive jet production in $\sqrt{s_\mathrm{NN}} = 5.02$ TeV proton--lead ($p$+Pb) collisions and the jet cross-section in $\sqrt{s} = 2.76$ TeV proton--proton collisions are…

高能物理 - 实验 · 物理学 2015-07-27 ATLAS Collaboration

The production of charged pions, kaons and (anti)protons has been measured at mid-rapidity ($-0.5 < y < 0$) in p-Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV using the ALICE detector at the LHC. Exploiting particle identification…

核实验 · 物理学 2016-08-03 ALICE Collaboration

Short range correlations of identified charged hadrons in pp (sqrt(s) = 0.9, 2.76, and 7 TeV), pPb (sqrt(sNN) = 5.02 TeV), and peripheral PbPb collisions (sqrt(sNN) = 2.76 TeV) are studied with the CMS detector at the LHC. Charged pions,…

高能物理 - 实验 · 物理学 2019-08-13 Ferenc Siklér

The increase of hard probe production as a function of the charged particle multiplicity in proton-proton and proton-lead collisions is considered to be an interesting observable for the study of multiple parton interactions. In the present…

核实验 · 物理学 2018-08-06 Anisa Khatun

The large cross sections for gauge boson production at the Fermilab Tevatron and the CERN Large Hadron Collider (LHC) might give a chance to determine the electroweak parameters with high precision. We calculated two different…

高能物理 - 唯象学 · 物理学 2007-05-23 R. Pittau , F. del Aguila , Ll. Ametller

Event-by-event multiplicity fluctuations in nucleus-nucleus collisions are studied within the relativistic transport models: EPOS, PHSD, and UrQMD. As measures of particle number fluctuations we consider the scaled variances $\omega[X]$ for…

Short range correlations of identified charged hadrons in pp ($\sqrt{s} =$ 0.9, 2.76, and 7 TeV), pPb ($\sqrt{s_{_\mathrm{NN}}} =$ 5.02 TeV), and peripheral PbPb collisions ($\sqrt{s_{_\mathrm{NN}}} =$ 2.76 TeV) are studied with the CMS…

高能物理 - 实验 · 物理学 2017-10-12 Ferenc Siklér

The HBT radii extracted in p-pbar and pp collisions at SPS and Tevatron show a clear correlation with the charged particle rapidity density. We propose to explain the correlation using a simple model where the distance from the initial hard…

高能物理 - 唯象学 · 物理学 2009-11-11 Guy Paic , Piotr Krzysztof Skowronski

The LHC data have unveiled unexpected features in proton-proton (pp) collisions, namely, collective-like behavior and strangeness enhancement. Originally, these new effects were discovered only in high-multiplicity pp collisions. However,…

高能物理 - 唯象学 · 物理学 2026-03-03 Jesús Eduardo Muñoz Méndez , Antonio Ortiz

Two-particle correlations in relative azimuthal angle (Delta-phi) and pseudorapidity (Delta-eta) are measured in sqrt(s_NN) = 5.02 TeV p+Pb collisions using the ATLAS detector at the LHC. The measurements are performed using approximately 1…

高能物理 - 实验 · 物理学 2013-06-11 ATLAS Collaboration

Charged particle reconstruction in the presence of many simultaneous proton-proton ($pp$) collisions in the LHC is a challenging task for the ATLAS experiment's reconstruction software due to the combinatorial complexity. This paper…

高能物理 - 实验 · 物理学 2024-04-11 ATLAS Collaboration

The parton rescattering effect on the charged hadron forward-backward multiplicity correlation in $pp$ collisions at $\sqrt s$=200 GeV is studied by a parton and hadron cascade model, PACIAE, based on the PYTHIA model. The calculated…

核理论 · 物理学 2009-12-16 Yu-Liang Yan , Bao-Guo Dong , Dai-Mei Zhou , Xiao-Mei Li , Hai-Liang Ma , Ben-Hao Sa

Measurements are presented of the triple-differential cross section for inclusive isolated-photon+jet events in pp collisions at $\sqrt{s} =$ 8 TeV as a function of photon transverse momentum ($p_\mathrm{T}^\gamma$), photon pseudorapidity…

高能物理 - 实验 · 物理学 2019-12-04 CMS Collaboration

The forward-backward (FB) charged particle multiplicity correlations between windows separated in rapidity and azimuth are analyzed using a model that treats strings as independent identical emitters. Both the short-range (SR) contribution,…

高能物理 - 唯象学 · 物理学 2017-06-05 Vladimir Vechernin

In this paper we continue the investigation of the effect of quantum number conservations of pions, kaons, and protons, with very high transverse momenta (up to 25 GeV/c), during parton fragmentation and hadronization in p-p and Pb-Pb…

高能物理 - 实验 · 物理学 2015-02-06 Gyula Bencédi , Gergely Gábor Barnaföldi , Levente Molnár

An energy independent scaling of the near-side ridge yield at a given multiplicity has been observed by the ATLAS and the CMS collaborations in p+p collisions at s = 7 and 13 TeV. Such a striking feature of the data can be successfully…

高能物理 - 唯象学 · 物理学 2022-09-13 Debojit Sarkar

We calculate various azimuthal angle distributions for three jets produced in the forward rapidity region with transverse momenta $p_T>20\,\mathrm{GeV}$ in proton-proton (p-p) and proton-lead (p-Pb) collisions at center of mass energy…

高能物理 - 唯象学 · 物理学 2020-10-28 Marcin Bury , Andreas van Hameren , Piotr Kotko , Krzysztof Kutak

We compute predictions for various low-transverse-momentum bulk observables in $\sqrt{s_{NN}} = 5.023$ TeV Pb+Pb collisions at the LHC from the event-by-event next-to-leading-order perturbative-QCD + saturation + viscous hydrodynamics…

高能物理 - 唯象学 · 物理学 2016-02-03 H. Niemi , K. J. Eskola , R. Paatelainen , K. Tuominen

Charged-particle distributions are measured in proton-proton collisions at a centre-of-mass energy of 13 TeV, using a data sample of nearly 9 million events, corresponding to an integrated luminosity of 170 $\mu$b$^{-1}$, recorded by the…

高能物理 - 实验 · 物理学 2016-11-18 ATLAS Collaboration

We report on studies of two-particle \Delta\eta\Delta\phi\ angular correlations measured in proton-proton collisions at center of mass energies sqrt{s} = 0.9 TeV, sqrt{s} = 2.76 TeV and sqrt{s} = 7 TeV registered by the ALICE experiment at…

高能物理 - 实验 · 物理学 2012-03-14 Małgorzata Janik