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The ALICE collaboration recently reported the mean transverse momentum as a function of charged-particle multiplicity for different pp-collisions classes defined based on the "jettiness" of the event. The event "jettiness" is quantified…

高能物理 - 唯象学 · 物理学 2024-01-15 Antonio Ortiz , Lizardo Valencia Palomo , Victor Manuel Minjares Neriz

Volume fluctuations are introduced in a statistical modelling of relativistic particle collisions. The micro-canonical ensemble is used, and the volume fluctuations are assumed to have the specific scaling properties. This leads to the KNO…

高能物理 - 唯象学 · 物理学 2008-11-26 V. V. Begun , M. Gaździcki , M. I. Gorenstein

In this work, building on state-of-the-art quantum Monte Carlo simulations, we perform systematic finite-size scaling of both entanglement and participation entropies for long-range Heisenberg chain with unfrustrated power-law decaying…

强关联电子 · 物理学 2025-01-08 Jiarui Zhao , Nicolas Laflorencie , Zi Yang Meng

The Large Hadron Collider (LHC) aims to inject oxygen (${}^{16}O$) ions in the next run into its experiments. This include the anticipated one-day physics run focusing on $OO$ collisions at center-of-mass energy \sqrt{s_{\mathrm{NN}} = 7…

高能物理 - 唯象学 · 物理学 2024-10-16 A. M. Khan , M. U. Ashraf , H. M. Alfanda , M. Uzair. Aslam

The high-multiplicity pp collisions at the Large Hadron Collider energies with various heavy-ion-like signatures have warranted a deeper understanding of the underlying physics and particle production mechanisms. It is a common practice to…

高能物理 - 唯象学 · 物理学 2020-10-08 Suman Deb , Sushanta Tripathy , Golam Sarwar , Raghunath Sahoo , Jan-e Alam

We investigate the multiplicity dependence of the transverse momentum $p_T$ spectra of hadrons produced in high-energy collisions. We propose that the partonic distribution be parameterized by its non-extensive entropy and the parton…

高能物理 - 唯象学 · 物理学 2024-07-10 L. S. Moriggi , G. S. Ramos , M. V. T. Machado

This paper presents the results of an analysis of the low-energy $\pi^\pm p$ differential cross sections, acquired by the CHAOS Collaboration at TRIUMF \cite{chaos,denz}. We first analyse separately the $\pi^+ p$ and the $\pi^- p$…

高能物理 - 唯象学 · 物理学 2015-06-04 Evangelos Matsinos , Guenther Rasche

The multiplicity dependence of event-by-event fluctuations in mean transverse momentum, $\langle p_{\rm T} \rangle$, of charged particles has been studied in p$-$p collisions at $\sqrt{s}$ = 7 TeV and 13 TeV using the PYTHIA 8 event…

高能物理 - 唯象学 · 物理学 2023-06-07 Subhadeep Roy , Tulika Tripathy , Sadhana Dash

We compute in QCD perturbation theory the transverse energy carried by gluons, quarks and antiquarks with $p_T\ge p_0\approx 2$ GeV in Pb+Pb collisions at $\sqrt{s}=5500$ $A$GeV by using structure functions compatible with the small-$x$…

高能物理 - 唯象学 · 物理学 2009-10-28 K. J. Eskola , K. Kajantie , P. V. Ruuskanen

Motivated by the expectation that new physics may manifest itself in the form of very heavy new particles, most of the operation time of the LHC is devoted to $pp$ collisions at the highest achievable energies and collision rates. The large…

高能物理 - 唯象学 · 物理学 2023-01-03 Hesham El Faham , Andrea Giammanco , Jan Hajer

An extensive analysis of individual high multiplicity events produced in 158 A GeV /c 208Pb- 208Pb collisions is carried by adopting different methods to examine the anomalous behavior of these rare events. A method of selecting the events…

The collective interactions of many partons in the first stage of the collisions is the usual accepted explanation of the sizable elliptical flow. The clustering of color sources provides a framework of partonic interactions. In this…

高能物理 - 唯象学 · 物理学 2014-11-18 I. Bautista , L. Cunqueiro , J. Dias de Deus , C. Pajares

In this work, a study of the average transverse momentum (pt) as a function of the mid-rapidity charged hadron multiplicity (Nch) and hadron mass (m) in p-Pb and Pb-Pb collisions at LHC energies is presented. For the events producing low…

高能物理 - 唯象学 · 物理学 2015-08-31 Antonio Ortiz

Multiplicity ($N_{\rm ch}$) distributions and transverse momentum ($p_{\rm T}$) spectra of inclusive primary charged particles in the kinematic range of $|\eta| < 0.8$ and 0.15 GeV/$c$ $< p_{T} <$ 10 GeV/$c$ are reported for pp, p-Pb, Xe-Xe…

核实验 · 物理学 2024-05-20 ALICE Collaboration

Entanglement of the two scattered particles is expected to occur in elastic collisions, even at high energy where they are in competition with inelastic ones. We study how to evaluate quantitatively the corresponding entanglement entropy…

高能物理 - 理论 · 物理学 2019-11-07 Robi Peschanski , Shigenori Seki

This study investigates the multiplicity distribution of charged particles generated in $p$-O collisions, employing Pythia (Angantyr) and $k_T$-factorization approach. Oxygen nucleus configurations are sampled using a $\alpha$-cluster model…

高能物理 - 唯象学 · 物理学 2026-02-13 Yuri N. Lima , Lucas J. F. Silva , Andre V. Giannini , Marcelo G. Munhoz

The parton and hadron cascade model PACIAE based on PYTHIA was utilized to systematically investigate the strange particle production in pp collisions at the RHIC and LHC energies. Taking the mechanism of reduction of the strange quark…

高能物理 - 唯象学 · 物理学 2012-02-13 Hai-Yan Long , Sheng-Qin Feng , Dai-Mei Zhou , Yu-Liang Yan , Hai-Liang Ma , Ben-Hao Sa

We use geometric scaling invariant quantities to measure the approach, or not, of the imaginary and real parts of the elastic scattering amplitude, to the black disk limit, in $pp$ collisions at very high energy.

高能物理 - 唯象学 · 物理学 2015-05-28 P. Brogueira , J. Dias de Deus

The production mechanism of quarkonia states in hadronic collisions is still to be understood by the scientific community. In high-multiplicity $p+p$ collisions, Underlying Event (UE) observables are of major interest. The Multi-Parton…

高能物理 - 唯象学 · 物理学 2018-05-16 Dhananjaya Thakur , Sudipan De , Raghunath Sahoo , Soumya Dansana

We propose the method for estimation of entropy generated during the string breaking in high energy collisions. The approach is highly based on the ideas proposed by Kharzeev D et al and may be useful in thermalization problem.

高能物理 - 理论 · 物理学 2014-10-16 Maksym Teslyk , Olena Teslyk