Nuclear mass number dependence of inclusive production of ω and mesons in 12 GeV p+A collisions

T. Tabaru, H. En'yo, R. Muto, M. Naruki, S. Yokkaichi, J. Chiba, M. Ieiri, O. Sasaki, M. Sekimoto, K. H. Tanaka, H. Funahashi, Y. Fukao, M. Kitaguchi, M. Ishino, H. Kanda, S. Mihara, T. Miyashita, K. Miwa, T. Murakami, T. NakuraF. Sakuma, M. Togawa, S. Yamada, Y. Yoshimura, H. Hamagaki, K. Ozawa

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22 Citations (Scopus)

Abstract

The inclusive production of ω and mesons is studied in the backward region of the interaction of 12 GeV protons with polyethylene, carbon, and copper targets. The mesons are measured in e+e- decay channels. The production cross sections of the mesons are presented as functions of rapidity y and transverse momentum pT. The nuclear mass number dependences (A dependences) are found to be A0.710±0.021(stat)±0.037(syst) for ω mesons and A0.937±0.049(stat)±0.018(syst) for mesons in the region of 0.9<y<1.7 and pT<0.75 GeV/c.

Original languageEnglish
Article number025201
JournalPhysical Review C - Nuclear Physics
Volume74
Issue number2
DOIs
Publication statusPublished - 2006
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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