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Production of Phi mesons in p + p, p + Pb and central Pb + Pb collisions at E(beam) = 158-A-GEV. (CROSBI ID 87005)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Afanasev, S.V. ; Antičić, Tome ; Bachler, J. ; Barna, D. ; Barnby, L.S. ; Bartke, J. ; Barton, R.A. ; Betev, L. ; Bialkowska, H. ; Billmeier, A. et al. Production of Phi mesons in p + p, p + Pb and central Pb + Pb collisions at E(beam) = 158-A-GEV. // Physics letters. B, 491 (2000), 59-66-x

Podaci o odgovornosti

Afanasev, S.V. ; Antičić, Tome ; Bachler, J. ; Barna, D. ; Barnby, L.S. ; Bartke, J. ; Barton, R.A. ; Betev, L. ; Bialkowska, H. ; Billmeier, A. ; Blume, C. ; Blyth, C.O. ; Boimska, B. ; Bracinik, J. ; Brady, F.P. ; Brun, R. ; Buncic, P. ; Carr, L. ; Cebra, D. ; Cooper, G.E. ; Cramer, J.G. ; Csato, P. ; Eckardt, V. ; Eckhardt, F. ; Ferenc, D. ; Fischer, H.G. ; Fodor, Z. ; Foka, P. ; Freund, P. ; Friese, V. ; Ftacnik, J. ; Gal, J. ; Ganz, R. ; Gazdzicki, M. ; Gladysz, E. ; Grebieszkow, J. ; Harris, J.W. ; Hegyi, S. ; Hlinka, V. ; Hohne, C. ; Igo, G. ; Ivanov, M. ; Jacobs, P. ; Janik, R. ; Jones, P.G. ; Kadija, Krešo ; Kolesnikov, V.I. ; Kowalski, M. ; Lasiuk, B. ; Levai, P. ; Malakhov, A.I. ; Margetis, S. ; Markert, C. ; Mayes, B.W. ; Melkumov, G.L. ; Mischke, A. ; Molnar, J. ; Nelson, J.M. ; Odyniec, G. ; Oldenburg, M.D. ; Palla, G. ; Panagiotou, A.D. ; Petridis, A. ; Pikna, M. ; Pinsky, L. ; Poskanzer, A.M. ; Prindle, D.J. ; Puhlhofer, F. ; Reid, J.G. ; Renfordt, R. ; Retyk, W. ; Ritter, H.G. ; Rohrich, D. ; Roland, C. ; Roland, G. ; Rybicki, A. ; Sammer, T. ; Sandoval, A. ; Sann, H. ; Semenov, A.Yu. ; Schafer, E. ; Schmitz, N. ; Seyboth, P. ; Sikler, F. ; Sitar, B. ; Skrzypczak, E. ; Snellings, R. ; Squier, G.T.A. ; Stock, R. ; Strmen, P. ; Strobele, H. ; Šuša, Tatjana ; Szarka, I. ; Szentpetery, I. ; Sziklai, J. ; Toy, M. ; Trainor, T.A. ; Trentalange, S. ; Ullrich, T. ; Varga, D. ; Vassiliou, M. ; Veres, G.I. ; Vesztergombi, G. ; Voloshin, S. ; Vranić, D. ; Wang, F. ; Weerasundara, D.D. ; Wenig, S. ; Whitten, C. ; Xu, N. ; Yates, T.A. ; Yoo, I.K. ; Zimanyi, J.

engleski

Production of Phi mesons in p + p, p + Pb and central Pb + Pb collisions at E(beam) = 158-A-GEV.

Yields and phase space distributions of Phi mesons emitted from p+p (minimum bias trigger), p+Pb (at various centralities) and central Pb+Pb collisions are reported (E_beam=158AGeV). The decay Phi --> K+K was used for identification. The Phi/Pi ratio is found to increase by a factor of 3.0ą0.7 from inelastic p+p to central Pb+Pb. Significant enhancement in this ratio is also observed in subclasses of p+p events (characterized by high charged-particle multiplicity) as well as in the forward hemisphere of central p+Pb collisions. In Pb+Pb no shift or significant broadening of the Phi-peak is seen.

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Podaci o izdanju

491

2000.

59-66-x

objavljeno

0370-2693

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Fizika

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