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Kaon production and kaon to pion ratio in Au + Au collisions at sNN=130GeV

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成果类型:
期刊论文
作者:
Adler, C*;Ahammed, Z;Allgower, C;Amonett, J;Anderson, BD;...
通讯作者:
Adler, C
作者机构:
[Adler, C] Goethe Univ Frankfurt, D-6000 Frankfurt, Germany.
Argonne Natl Lab, Argonne, IL 60439 USA.
Brookhaven Natl Lab, Upton, NY 11973 USA.
Univ Birmingham, Birmingham B15 2TT, W Midlands, England.
Univ Calif Berkeley, Berkeley, CA 94720 USA.
通讯机构:
[Adler, C] G
Goethe Univ Frankfurt, D-6000 Frankfurt, Germany.
语种:
英文
关键词:
25.75.-q;25.75.Dw
期刊:
Physics Letters B
ISSN:
0370-2693
年:
2004
卷:
595
期:
1-4
页码:
143-150
机构署名:
本校为其他机构
院系归属:
物理科学与技术学院
摘要:
Mid-rapidity transverse mass spectra and multiplicity densities of charged and neutral kaons are reported for Au + Au collisions at root(s)NN = 130 GeV at RHIC. The spectra are exponential in transverse mass, with an inverse slope of about 280 MeV in central collisions. The multiplicity densities for these particles scale with the negative hadron pseudo-rapidity density. The charged kaon to pion ratios are K+/pi(-) = 0.161 +/- 0.002(stat) +/-0.024(syst) and K-/pi(-) = 0. 146 +/- 0.002(stat) +/-0.022(syst) for the most central collisions. The K+/pi(-) ratio is lower than the same ratio observed...

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