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arXiv 1004.1889hep-ex
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在158 GeV/c束流动量下p+p碰撞中带电K介子的包含产生和K介子产生与碰撞机能量关系的新估计

Inclusive production of charged kaons in p+p collisions at 158 GeV/c beam momentum and a new evaluation of the energy dependence of kaon production up to collider energies

The NA49 Collaboration, T. Anticic, B. Baatar, J. Bartke, L. Betev, H. Białkowska, B. Boimska, J. Bracinik, V. Cerny, O. Chvala, J. Dolejsi, V. Eckardt, H. G. F… 展开作者

The NA49 Collaboration, T. Anticic, B. Baatar, J. Bartke, L. Betev, H. Białkowska, B. Boimska, J. Bracinik, V. Cerny, O. Chvala, J. Dolejsi, V. Eckardt, H. G. Fischer, Z. Fodor, E. Gładysz, K. Kadija, A. Karev, V. Kolesnikov, M. Kowalski, M. Kreps, M. Makariev, A. Malakhov, M. Mateev, G. Melkumov, A. Rybicki, N. Schmitz, P. Seyboth, T. Susa, P. Szymanski, V. Trubnikov, D. Varga, G. Vesztergombi, S. Wenig

摘要:

提出了在p+p相互作用中产生带电K介子的新数据。这些数据来自CERN SPS的NA 49探测器在158 GeV/c束动量下获得的480万个非弹性事件的样本。在一个大型TPC跟踪系统中,通过能量损失来识别K介子。在0 ~ 1.7 GeV/c横动量和0 ~ 0.5 GeV/c Feynman x范围内得到了包含不变截面。使用这些数据作为参考,一个新的评估的能量依赖性的K介子生产,包括中性K介子,进行了从3 GeV到p+反p对撞机的能量范围内。

英文摘要:

New data on the production of charged kaons in p+p interactions are presented. The data come from a sample of 4.8 million inelastic events obtained with the NA49 detector at the CERN SPS at 158 GeV/c beam momentum. The kaons are identified by energy loss in a large TPC tracking system. Inclusive invariant cross sections are obtained in intervals from 0 to 1.7 GeV/c in transverse momentum and from 0 to 0.5 in Feynman x. Using these data as a reference, a new evaluation of the energy dependence of kaon production, including neutral kaons, is conducted over a range from 3 GeV to p+anti-p collider energies.

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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