Localized charged-neutral fluctuations in 158 GeV Pb plus Pb collisions

0185338 - UJF-V 20010065 RIV US eng J - Článek v odborném periodiku
Aggarwal, M. M. - Agnihotri, A. - Ahammed, Z. - Angelis, A. L. S. - Antonenko, V. - Arefiev, V. - Astakhov, V. - Avdeitchikov, V. - Awes, T. C. - Baba, P. V. K. S. - Badyal, S. K. - Barlag, C. - Bathe, S. - Batiounia, B. - Bernier, T. - Bhalla, K. B. - Bhatia, V. S. - Blume, C. - Bock, R. - Bohne, E. - M. - Borocz, Z. - Bucher, D. - Buijs, A. - Busching, H. - Carlen, L. - Chalyshev, V. - Chattopadhyay, S. - Cherbatchev, R. - Chujo, T. - Claussen, A. - Das, A. C. - Decowski, M. P. - Delagrange, H. - Djordjadze, V. - Donni, P. - Doubovik, I. - Dubey, A. K. - Dutt, S. - Majumdar, M. R. D. - El Chenawi, K. - Eliseev, Sergej - Hřivnáčová, Ivana - Kugler, Andrej - Pachr, Miloš - Petráček, Vojtěch - Rak, Jan - Šumbera, Michal - Yokota, Y. - Young, G. R.
Localized charged-neutral fluctuations in 158 GeV Pb plus Pb collisions.
Physical Review. C. Roč. 6401, č. 1 (2001), s. 1901. ISSN 0556-2813
Grant CEP: GA AV ČR KSK1048102
Kód oboru RIV: BG - Jaderná, atomová a mol. fyzika, urychlovače
Impakt faktor: 2.695, rok: 2001

Localized fluctuations in the multiplicity of charged particles and photons produced in central 158A GeV/c Pb+Pb collisions are studied. The charged versus neutral correlations in common eta-phi phase space regions of varying azimuthal size are analyzed by two different methods. The analysis provides a model-independent demonstration of nonstatistical fluctuations in both charged particle and photon multiplicities in limited azimuthal regions. However, no correlated charge-neutral fluctuations are observed, contrary to expectations for the production of a disoriented chiralcondensate. The results is not explained by the widely used VENUS model.
Trvalý link: http://hdl.handle.net/11104/0081738