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arXiv 1409.4111hep-exnucl-ex
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LHCf上p-Pb碰撞中强子产生的测量

Measurements of hadron production in p-Pb collisions at LHCf

Gaku Mitsuka

摘要:

用LHCf探测器测量了在核子-核子质心能量为$\sqrt{s_{NN}}$ = 5.02 TeV的p-Pb碰撞中,包含的中性π介子在非常向前快度区的横动量分布.在p-Pb碰撞中得到的横动量谱表明,相对于$\sqrt{s}$ = 5.02 TeV的p-p碰撞中的谱,中性π介子的产生受到强烈的抑制。核修正因子约为0.1-0.4,与几种强子相互作用蒙特卡罗模拟的预测基本一致。此外,本文还讨论了$\sqrt{s}$ = 7 TeV的p-p碰撞正向中子包容能谱的最新结果。

英文摘要:

The transverse momentum distribution for inclusive neutral pions in very forward rapidity region has been measured with the LHCf detector in p-Pb collisions at nucleon-nucleon center-of-mass energies of $\sqrt{s_{NN}}$ = 5.02 TeV at the LHC. The transverse momentum spectra obtained in p-Pb collisions show a strong suppression of the production of neutral pions relative to the spectra in p-p collisions at $\sqrt{s}$ = 5.02 TeV. The nuclear modification factor is about 0.1-0.4, which overall agrees with the predictions of several hadronic interaction Monte Carlo simulations. Furthermore the recent results on the inclusive energy spectra of forward neutrons in p-p collisions at $\sqrt{s}$ = 7 TeV will be discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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