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We present transverse momentum distributions of charged hadrons produced in Au+Au collisions at sqrt(s_NN) = 200 GeV. The evolution of the spectra for transverse momenta p_T from 0.25 to 5GeV/c is studied as a function of collision…

高能物理 - 实验 · 物理学 2010-01-11 Christof Roland

Transverse momentum (p_T) spectra of neutral pions and charged hadrons measured in Au+Au and d+Au collisions at sqrt{s_NN}=200 GeV by the PHENIX experiment at RHIC are compared to p+p reference spectra at the same sqrt{s_NN}. In central…

核实验 · 物理学 2019-08-14 Klaus Reygers

It has been recently noticed that transverse momenta ($p_T$) distributions observed in high energy production processes exhibit remarkably universal scaling behavior. This is seen when they are in some suitable variable, replacing the usual…

高能物理 - 唯象学 · 物理学 2015-04-03 M. Rybczynski , Z. Wlodarczyk , G. Wilk

We present transverse momentum distributions of charged hadrons produced in Au+Au collisions at sqrt(s_NN) = 200 GeV. The spectra were measured for transverse momenta p_T from 0.25 to 4.5 GeV/c in a rapidity range of 0.2 < y_pi < 1.4. The…

核实验 · 物理学 2008-11-26 B. B. Back , PHOBOS Collaboration

The multiplicity and average transverse momentum of the charged and identified particles produced in different kinds of colliding systems are an example of global observables used to characterize events over a wide range of energy. Studying…

核实验 · 物理学 2022-09-28 Eleazar Cuautle , Edgar Domínguez Rosas , Mario Rodríguez-Cahuantzi

With the experimental data collected by the ALICE collaboration in Pb-Pb collisions at a center-of-mass energy per nucleon pair 2.76 TeV for six different centralities (0-5$\%$, 5-10$\%$, 10-20$\%$, 20-40$\%$, 40-60$\%$ and 60-80$\%$), we…

核理论 · 物理学 2018-06-08 Y. Y. Wang , L. W. Yang , X. L. Du , N. Liu , L. Y. Qiao , W. C. Zhang

We compute the distributions of charged particles at large transverse momenta in $p\bar p(p)$, $pA$ and $AA$ collisions in the framework of perturbative QCD, by using collinear factorization and the modern PDFs and fragmentation functions.…

高能物理 - 唯象学 · 物理学 2010-04-05 K. J. Eskola , H. Honkanen

I will present an overview of identified particle spectra at high $p_T$ ($p_T{}^{>}_{\sim}$ 5 GeV/$c$) in both p+p collisions and AA collisions at RHIC. In p+p collisions, summary of particle ratios of K, $\eta$, $\omega$, $\rho$, $\phi$,…

核实验 · 物理学 2008-08-01 Zhangbu Xu

The charged-particle pseudorapidity density for Au+Au collisions at sqrt(s_NN)=62.4 GeV has been measured over a wide range of impact parameters and compared to results obtained at other energies. As a function of collision energy, the…

核实验 · 物理学 2008-11-26 B. B. Back , PHOBOS Collaboration

The properties of particle production in pp collisions are basis for analysis of pA and AA interactions and verification of theory. We analyzed inclusive particle production using z-scaling established in proton-proton and proton-antiproton…

高能物理 - 唯象学 · 物理学 2007-05-23 M. V. Tokarev , Yu. A. Panebratsev , G. P. Skoro , I. Zborovsky

We report the recent results of proton and anti-proton yields as a function of centrality and p_T in Au+Au collisions at sqrt(s_NN) = 200 GeV, measured by the PHENIX experiment at RHIC. In central collisions at intermediate transverse…

核实验 · 物理学 2019-08-14 Tatsuya Chujo

The centrality dependence of transverse momentum spectra for identified hadrons at midrapidity in Au+Au collisions at $\sqrt{s_{NN}}= 200$ GeV is systematically studied in a quark combination model. The $\mathrm{{p}_{T}}$ spectra of…

高能物理 - 唯象学 · 物理学 2015-05-13 Yun-fei Wang , Feng-lan Shao , Jun Song , De-ming Wei , Qu-bing Xie

The PHENIX experiment at RHIC has measured charged hadron yields at mid-rapidity over a wide range of transverse momentum (0.5 < p_T < 10 GeV/c) in Au+Au collisions at sqrt(s_NN)=200 GeV. The data are compared to pi^zero measurements from…

核实验 · 物理学 2008-11-26 PHENIX Collaboration , S. S. Adler

We have measured transverse momentum distributions of charged hadrons produced in Au+Au collisions at sqrt(s_NN) = 62.4 GeV. The spectra are presented for transverse momenta 0.25 < p_T< 4.5 GeV/c, in a pseudo-rapidity range of 0.2 < eta <…

核实验 · 物理学 2019-08-14 B. B. Back

In the framework of the classical Glauber approach, the analytical expressions for the variance of the number of wounded nucleons and binary collisions in AA interactions at a given centrality are presented. Along with the optical…

高能物理 - 唯象学 · 物理学 2012-03-14 V. V. Vechernin , H. S. Nguyen

In the Color Glass Condensate formalism, charged hadron p_{T} distributions in p+p collisions are studied by considering an energy-dependent broadening of nucleon's density distribution. Then, in the Glasma flux tube picture, the n-particle…

高能物理 - 唯象学 · 物理学 2015-12-09 Hongmin Wang , Zhao-Yu Hou , Xian-Jing Sun

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

Utilizing the three-fireball picture within the quark combination model, we study systematically the charged particle pseudorapidity distributions in both Au+Au and Cu+Cu collision systems as a function of collision centrality and energy,…

高能物理 - 唯象学 · 物理学 2010-01-08 De-ming Wei , Feng-lan Shao , Jun Song , Yun-fei Wang

Based on the recent RHIC and LHC experimental results, the $\langle p_T\rangle$ dependence of identified light flavour charged hadrons on $\sqrt{(\frac{dN}{dy})/S_{\perp}}$, relevant scale in gluon saturation picture, is studied from…

高能物理 - 唯象学 · 物理学 2018-08-15 M. Petrovici , A. Lindner , A. Pop , M. Tarzila , I. Berceanu

We report on a scaling behaviour in the transverse momentum ($p_{T}$) distributions for charged hadrons produced in proton-proton ($pp$) collisions with different center of mass energies ($\sqrt{s}$ = 0.9, 2.76 and 7 TeV) at the Compact…

高能物理 - 唯象学 · 物理学 2014-09-11 W. C. Zhang , C. B. Yang