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相关论文: A fully relativistic description of Hypernuclear p…

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Transverse momentum spectra of $\pi^{\pm}$, $\rm K^{\pm}$ and p($\bar{\rm p}$) up to $p_{\rm T}$ = 20 GeV/$c$ at mid-rapidity in pp and Pb-Pb collisions at $\sqrt{s_{\rm NN}}=$ 2.76 TeV have been measured using the ALICE detector at the…

核实验 · 物理学 2014-10-31 ALICE Collaboration

Charged and neutral B decays into two charged pions and a charged or a neutral kaon are analyzed within the QCD factorization scheme where final state interactions before and after hadronization are included. The K*(892) and K*(1430)…

高能物理 - 唯象学 · 物理学 2015-03-13 O. Leitner , J. -P. Dedonder , B. Loiseau , R. Kaminski

The production of Lambda hyperons and light hypernuclei in heavy-ion collisions provides critical insights into the nuclear equation of state (EoS) and hyperon interactions in dense matter, addressing the longstanding ``hyperon puzzle'' in…

核理论 · 物理学 2025-05-20 Gao-Chan Yong , J. L. Rodríguez-Sánchez , Yapeng Zhang

It has been theorized that if heavy nuclei (e.g. Au, Pb) are collided at sufficiently high energies, we might be to recreate the conditions that existed in the universe a few microseconds after the Big Bang. The kinetic energy of the…

核实验 · 物理学 2007-07-18 Anuj K. Purwar

Hypernuclei are bound states of nuclei with one or more hyperons. Precise measurements of hypernuclei properties and their production yields in heavy ion collisions are crucial for the understanding of their production mechanisms. The…

核实验 · 物理学 2026-05-05 Yuanjing Ji

Results on $\Lambda$ hyperon production are reported for collisions of p(3.5 GeV) + Nb, studied with the High Acceptance Di-Electron Spectrometer (HADES) at SIS18 at GSI Helmholtzzentrum for Heavy-Ion Research, Darmstadt. The transverse…

We address the problem of pion production in low energy $\pi$-nucleus collisions. For the production mechanism we assume a simple model consisting of a coherent sum of single pion exchange and the excitation---followed by the decay into two…

核理论 · 物理学 2009-10-31 R. Rapp , J. W. Durso , Z. Aouissat , G. Chanfray , O. Krehl , P. Schuck , J. Speth , J. Wambach

We report on double-differential inclusive cross-sections of the production of secondary protons, deuterons, and charged pions and kaons, in the interactions with a 5% nuclear interaction length thick stationary beryllium target, of a +8.9…

In the framework of PYTHIA8.2 program we considered p-Pb and p-Au heavy ion collisions at the energy of 5.02 TeV and 8 TeV. The advantage of this program is in the combining of several nucleon-nucleon collisions into one heavy ion…

高能物理 - 唯象学 · 物理学 2023-01-30 Tetiana Obikhod , Ievgenii Petrenko

Motivated by the renewed interest in studying the pion production on nuclei with protons at few GeV incident energies, we investigate the pion production in proton-proton collisions over an energy range of 300 $MeV$ to 2 $GeV$. Starting…

核理论 · 物理学 2009-10-30 A. Engel , A. K. Dutt-Mazumder , R. Shyam , U. Mosel

The photonuclear production of vector mesons in ultraperipheral heavy ion collisions is investigated within the QCD color dipole picture, with particular emphasis on the saturation model. The integrated cross section and the rapidity…

高能物理 - 唯象学 · 物理学 2011-09-13 V. P. Goncalves , M. V. T. Machado

In this article the production of $K^+$ at energies close to the threshold is studied in detail. The production mechanisms, the influence of in-medium effects, cross sections, the nuclear equation of state and the dynamics of the nucleons…

核理论 · 物理学 2007-05-23 Christoph Hartnack

We have investigated the gauge field of a fast moving projectile passing through a dense medium. We provide a simple and unified derivation, in light cone gauge, of the gluon production cross-section in proton-nucleus (initial state…

高能物理 - 唯象学 · 物理学 2008-11-26 Yacine Mehtar-Tani

Ultrarelativistic heavy ion collisions recreate in the laboratory the thermodynamical conditions prevailing in the early universe up to 10$^{-6}$ seconds, thereby allowing the study of the quark-gluon plasma (QGP), a state of quantum…

高能物理 - 实验 · 物理学 2020-11-26 CMS Collaboration

In this work we report on the production of charged pions, kaons, and (anti) protons in pp and Pb-Pb collisions at sqrt{s_NN}= 2.76 TeV for 3 < pT < 20 GeV/c. The evolution of the nuclear modification factor, RAA, with collision centrality…

高能物理 - 实验 · 物理学 2019-08-13 Antonio Ortiz Velasquez

The production of light anti- and hyper-nuclei provides unique observables to characterise the system created in high energy proton-proton (pp), proton-nucleus (pA) and nucleus-nucleus (AA) collisions. In particular, nuclei and hyper-nuclei…

高能物理 - 唯象学 · 物理学 2019-07-26 Francesca Bellini , Alexander P. Kalweit

Based on nucleons ($p$, $n$) and hyperons ($\Lambda$, $\Omega^-$) formed at kinetic freeze-out from a quark combination model, we systematically study the production of light nuclei and hyper-nuclei in the hadronic coalescence picture. We…

核理论 · 物理学 2026-03-24 Jiang-He Qiao , Jian-Yu Liu , Yan-Ting Feng , Feng-Lan Shao , Rui-Qin Wang

We analyse the production and propagation of pions and kaons in heavy-ion reactions from 0.8 -- 1.8~A$\cdot$GeV within a coupled channel transport approach including the kaon production channels $BB \to K^+YN, \pi B\to K^+Y, BB \to NN K…

核理论 · 物理学 2009-10-30 E. L. Bratkovskaya , W. Cassing , U. Mosel

New kaon photoproduction data on a proton, gamma + p --> K+ + Lambda, are analyzed using a multipole approach. The background terms are given in terms of gauge invariant, crossing symmetric, Born diagrams with hadronic form factors, while…

核理论 · 物理学 2017-08-23 T. Mart , A. Sulaksono , C. Bennhold

Chiral Lagrangians are used to compute the production rate of photons from the hadronic phase of relativistic nuclear collisions. Special attention is paid to the role of the pseudovector a_1 meson. Calculations that include reactions with…

高能物理 - 唯象学 · 物理学 2009-11-10 Simon Turbide , Ralf Rapp , Charles Gale