The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

Default user image.

Anders Oskarsson

Professor emeritus

Default user image.

Pion freeze-out time in Pb plus Pb collisions at 158 AGeV/c studied via pi(-)/pi(+) and K-/K+ ratios

Author

  • M. M. Aggarwal
  • Z. Ahammed
  • A. L. S. Angelis
  • V. Antonenko
  • V. Arefiev
  • V. Astakhov
  • V. Avdeitchikov
  • T. C. Awes
  • P. V. K. S. Baba
  • S. K. Badyal
  • S. Bathe
  • B. Batiounia
  • T. Bernier
  • K. B. Bhalla
  • V. S. Bhatia
  • C. Blume
  • D. Bucher
  • H. Buesching
  • Lars Carlén
  • S. Chattopadhyay
  • M. P. Decowski
  • H. Delagrange
  • P. Donni
  • M. R. Dutta Majumdar
  • K. El Chenawi
  • A. K. Dubey
  • K. Enosawa
  • S. Fokin
  • V. Frolov
  • M. S. Ganti
  • Sten Garpman
  • O. Gavrishchuk
  • F. J. M. Geurts
  • T. K. Ghosh
  • R. Glasow
  • B. Guskov
  • Hans-Åke Gustafsson
  • H. H. Gutbrod
  • I. Hrivnacova
  • M. Ippolitov
  • H. Kalechofsky
  • R. Kamermans
  • K. Karadjev
  • K. Karpio
  • B. W. Kolb
  • I. Kosarev
  • I. Koutcheryaev
  • A. Kugler
  • P. Kulinich
  • M. Kurata
  • A. Lebedev
  • H. Lohner
  • L. Luquin
  • D. P. Mahapatra
  • V. Manko
  • M. Martin
  • G. Martinez
  • A. Maximov
  • Y. Miake
  • G. C. Mishra
  • B. Mohanty
  • M.-J. Mora
  • D. Morrison
  • T. Mukhanova
  • D. S. Mukhopadhyay
  • H. Naef
  • B. K. Nandi
  • S. K. Nayak
  • T. K. Nayak
  • A. Nianine
  • V. Nikitine
  • S. Nikolaev
  • Pål Nilsson
  • S. Nishimura
  • P. Nomokonov
  • Joakim Nystrand
  • Anders Oskarsson
  • Ingvar Otterlund
  • S. Pavliouk
  • T. Peitzmann
  • D. Peressounko
  • V. Petracek
  • S. C. Phatak
  • W. Pinganaud
  • F. Plasil
  • M. L. Purschke
  • J. Rak
  • R. Raniwala
  • S. Raniwala
  • N. K. Rao
  • F. Retiere
  • K. Reygers
  • G. Roland
  • L. Rosselet
  • I. Roufanov
  • C. Roy
  • J. M. Rubio
  • S. S. Sambyal
  • R. Santo
  • S. Sato
  • H. Schlagheck
  • H.-R. Schmidt
  • Y. Schutz
  • G. Shabratova
  • T. H. Shah
  • I. Sibiriak
  • T. Siemiarczuk
  • David Silvermyr
  • B. C. Sinha
  • N. Slavine
  • Kaj Söderström
  • G. Sood
  • S. P. Sorensen
  • P. Stankus
  • G. Stefanek
  • P. Steinberg
  • Evert Stenlund
  • M. Sumbera
  • Tomas Svensson
  • A. Tsvetkov
  • L. Tykarski
  • E. C. v. d. Pijll
  • N. V. Eijndhoven
  • G. J. v. Nieuwenhuizen
  • A. Vinogradov
  • Y. P. Viyogi
  • A. Vodopianov
  • S. Voeroes
  • B. Wyslouch
  • G. R. Young
Show all

Summary, in English

The effect of the final state Coulomb interaction on particles produced in Pb + Pb collisions at 158AGeV/c has been investigated in the WA98 experiment through the study of the pi(-)/pi(+) and K-/K+ ratios measured as a function of T-m- (m)0. While the ratio for kaons shows no significant T-m dependence, the pi(-)/pi(+) ratio is enhanced at small T-m - (m)0 values with an enhancement that increases with centrality. A silicon pad detector located near the target is used to estimate the contribution of hyperon decays to the pi(-)/pi(+) ratio. The comparison of results with predictions of the RQMD model in which the Coulomb interaction has been incorporated allows to place constraints on the time of the pion freeze-out.

Department/s

  • Department of Physics
  • Particle and nuclear physics

Publishing year

2006

Language

English

Pages

343-352

Publication/Series

European Physical Journal C. Particles and Fields

Volume

48

Issue

2

Document type

Article

Publisher

Springer Nature

Topic

  • Subatomic Physics

Status

Published

ISBN/ISSN/Other

  • ISSN: 1434-6044