K[superscript *0] production in Cu + Cu and Au + Au collisions at √s[subscript NN]=62.4 GeV and 200 GeV
Name
Agarwal-2011-K∗0 production in Cu + Cu and.pdf
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1.24 MB
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Author(s)
Balewski, Jan T.
Betancourt, Michael Joseph
Corliss, Ross Cameron
Hays-Wehle, James Prewitt
Jones, Christopher LaDon
Kocoloski, Adam Philip
Leight, William Axel
Sakuma, Tai
Seele, Joseph Patrick
Surrow, Bernd
Date Issued
September 2011
Journal
Physical Review C
Publisher
American Physical Society
Citation
Aggarwal, M. M. et al. "K*0 production in Cu + Cu and Au + Au collisions at √sNN=62.4 GeV and 200 GeV." Physical Review C 84, 034909 (2011). ©2011 American Physical Society
Version
Final published version
Abstract
We report on K[superscript *0] production at midrapidity in Au + Au and Cu + Cu collisions at √s[subscript NN]=62.4 and 200 GeV collected by the Solenoid Tracker at the Relativistic Heavy Ion Collider detector. The K[superscript *0] is reconstructed via the hadronic decays K[superscript *0]→K+π− and K[superscript *0̅] →K[superscript −]π[superscript +]. Transverse momentum, pT, spectra are measured over a range of pT extending from 0.2 GeV/c up to 5 GeV/c. The center-of-mass energy and system size dependence of the rapidity density, dN/dy, and the average transverse momentum, 〈pT〉, are presented. The measured N(K[superscript *0])/N(K) and N(φ)/N(K[superscript *0]) ratios favor the dominance of rescattering of decay daughters of K*0 over the hadronic regeneration for the K[superscript *0] production. In the intermediate pT region (2.0
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
https://doi.org/10.1103/PhysRevC.84.034909
