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

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

doi:10.1140/epjc/s10052-006-0081-x

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

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. ChattopadhyayM. 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

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Abstract

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.

Original language	English
Pages (from-to)	343-352
Journal	European Physical Journal C. Particles and Fields
Volume	48
Issue number	2
DOIs	https://doi.org/10.1140/epjc/s10052-006-0081-x
Publication status	Published - 2006

Subject classification (UKÄ)

Subatomic Physics

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10.1140/epjc/s10052-006-0081-x

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Aggarwal, M. M., 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., Bathe, S., Batiounia, B., Bernier, T., Bhalla, K. B., Bhatia, V. S., Blume, C., Bucher, D., Buesching, H., Carlén, L., ... Young, G. R. (2006). Pion freeze-out time in Pb plus Pb collisions at 158 AGeV/c studied via pi(-)/pi(+) and K-/K+ ratios. European Physical Journal C. Particles and Fields, 48(2), 343-352. https://doi.org/10.1140/epjc/s10052-006-0081-x

@article{ed32560c73924788b4500477493ff2bf,

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

abstract = "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.",

author = "Aggarwal, {M. M.} and Z. Ahammed and Angelis, {A. L. S.} and V. Antonenko and V. Arefiev and V. Astakhov and V. Avdeitchikov and Awes, {T. C.} and Baba, {P. V. K. S.} and Badyal, {S. K.} and S. Bathe and B. Batiounia and T. Bernier and Bhalla, {K. B.} and Bhatia, {V. S.} and C. Blume and D. Bucher and H. Buesching and Lars Carl{\'e}n and S. Chattopadhyay and Decowski, {M. P.} and H. Delagrange and P. Donni and Majumdar, {M. R. Dutta} and {El Chenawi}, K. and Dubey, {A. K.} and K. Enosawa and S. Fokin and V. Frolov and Ganti, {M. S.} and Sten Garpman and O. Gavrishchuk and Geurts, {F. J. M.} and Ghosh, {T. K.} and R. Glasow and B. Guskov and Hans-{\AA}ke Gustafsson and Gutbrod, {H. H.} and I. Hrivnacova and M. Ippolitov and H. Kalechofsky and R. Kamermans and K. Karadjev and K. Karpio and Kolb, {B. W.} and I. Kosarev and I. Koutcheryaev and A. Kugler and P. Kulinich and M. Kurata and A. Lebedev and H. Lohner and L. Luquin and Mahapatra, {D. P.} and V. Manko and M. Martin and G. Martinez and A. Maximov and Y. Miake and Mishra, {G. C.} and B. Mohanty and M.-J. Mora and D. Morrison and T. Mukhanova and Mukhopadhyay, {D. S.} and H. Naef and Nandi, {B. K.} and Nayak, {S. K.} and Nayak, {T. K.} and A. Nianine and V. Nikitine and S. Nikolaev and P{\aa}l Nilsson and S. Nishimura and P. Nomokonov and Joakim Nystrand and Anders Oskarsson and Ingvar Otterlund and S. Pavliouk and T. Peitzmann and D. Peressounko and V. Petracek and Phatak, {S. C.} and W. Pinganaud and F. Plasil and Purschke, {M. L.} and J. Rak and R. Raniwala and S. Raniwala and Rao, {N. K.} and F. Retiere and K. Reygers and G. Roland and L. Rosselet and I. Roufanov and C. Roy and Rubio, {J. M.} and Sambyal, {S. S.} and R. Santo and S. Sato and H. Schlagheck and H.-R. Schmidt and Y. Schutz and G. Shabratova and Shah, {T. H.} and I. Sibiriak and T. Siemiarczuk and David Silvermyr and Sinha, {B. C.} and N. Slavine and Kaj S{\"o}derstr{\"o}m and G. Sood and Sorensen, {S. P.} and P. Stankus and G. Stefanek and P. Steinberg and Evert Stenlund and M. Sumbera and Tomas Svensson and A. Tsvetkov and L. Tykarski and {v. d. Pijll}, {E. C.} and Eijndhoven, {N. V.} and Nieuwenhuizen, {G. J. v.} and A. Vinogradov and Viyogi, {Y. P.} and A. Vodopianov and S. Voeroes and B. Wyslouch and Young, {G. R.}",

year = "2006",

doi = "10.1140/epjc/s10052-006-0081-x",

language = "English",

volume = "48",

pages = "343--352",

journal = "European Physical Journal C. Particles and Fields",

issn = "1434-6044",

publisher = "Springer",

number = "2",

}

Aggarwal, MM, Ahammed, Z, Angelis, ALS, Antonenko, V, Arefiev, V, Astakhov, V, Avdeitchikov, V, Awes, TC, Baba, PVKS, Badyal, SK, Bathe, S, Batiounia, B, Bernier, T, Bhalla, KB, Bhatia, VS, Blume, C, Bucher, D, Buesching, H, Carlén, L, Chattopadhyay, S, Decowski, MP, Delagrange, H, Donni, P, Majumdar, MRD, El Chenawi, K, Dubey, AK, Enosawa, K, Fokin, S, Frolov, V, Ganti, MS, Garpman, S, Gavrishchuk, O, Geurts, FJM, Ghosh, TK, Glasow, R, Guskov, B, Gustafsson, H-Å, Gutbrod, HH, Hrivnacova, I, Ippolitov, M, Kalechofsky, H, Kamermans, R, Karadjev, K, Karpio, K, Kolb, BW, Kosarev, I, Koutcheryaev, I, Kugler, A, Kulinich, P, Kurata, M, Lebedev, A, Lohner, H, Luquin, L, Mahapatra, DP, Manko, V, Martin, M, Martinez, G, Maximov, A, Miake, Y, Mishra, GC, Mohanty, B, Mora, M-J, Morrison, D, Mukhanova, T, Mukhopadhyay, DS, Naef, H, Nandi, BK, Nayak, SK, Nayak, TK, Nianine, A, Nikitine, V, Nikolaev, S, Nilsson, P, Nishimura, S, Nomokonov, P, Nystrand, J, Oskarsson, A , Otterlund, I, Pavliouk, S, Peitzmann, T, Peressounko, D, Petracek, V, Phatak, SC, Pinganaud, W, Plasil, F, Purschke, ML, Rak, J, Raniwala, R, Raniwala, S, Rao, NK, Retiere, F, Reygers, K, Roland, G, Rosselet, L, Roufanov, I, Roy, C, Rubio, JM, Sambyal, SS, Santo, R, Sato, S, Schlagheck, H, Schmidt, H-R, Schutz, Y, Shabratova, G, Shah, TH, Sibiriak, I, Siemiarczuk, T, Silvermyr, D, Sinha, BC, Slavine, N, Söderström, K, Sood, G, Sorensen, SP, Stankus, P, Stefanek, G, Steinberg, P, Stenlund, E, Sumbera, M, Svensson, T, Tsvetkov, A, Tykarski, L, v. d. Pijll, EC, Eijndhoven, NV, Nieuwenhuizen, GJV, Vinogradov, A, Viyogi, YP, Vodopianov, A, Voeroes, S, Wyslouch, B & Young, GR 2006, 'Pion freeze-out time in Pb plus Pb collisions at 158 AGeV/c studied via pi(-)/pi(+) and K-/K+ ratios', European Physical Journal C. Particles and Fields, vol. 48, no. 2, pp. 343-352. https://doi.org/10.1140/epjc/s10052-006-0081-x

TY - JOUR

T1 - Pion freeze-out time in Pb plus Pb collisions at 158 AGeV/c studied via pi(-)/pi(+) and K-/K+ ratios

AU - Aggarwal, M. M.

AU - Ahammed, Z.

AU - Angelis, A. L. S.

AU - Antonenko, V.

AU - Arefiev, V.

AU - Astakhov, V.

AU - Avdeitchikov, V.

AU - Awes, T. C.

AU - Baba, P. V. K. S.

AU - Badyal, S. K.

AU - Bathe, S.

AU - Batiounia, B.

AU - Bernier, T.

AU - Bhalla, K. B.

AU - Bhatia, V. S.

AU - Blume, C.

AU - Bucher, D.

AU - Buesching, H.

AU - Carlén, Lars

AU - Chattopadhyay, S.

AU - Decowski, M. P.

AU - Delagrange, H.

AU - Donni, P.

AU - Majumdar, M. R. Dutta

AU - El Chenawi, K.

AU - Dubey, A. K.

AU - Enosawa, K.

AU - Fokin, S.

AU - Frolov, V.

AU - Ganti, M. S.

AU - Garpman, Sten

AU - Gavrishchuk, O.

AU - Geurts, F. J. M.

AU - Ghosh, T. K.

AU - Glasow, R.

AU - Guskov, B.

AU - Gustafsson, Hans-Åke

AU - Gutbrod, H. H.

AU - Hrivnacova, I.

AU - Ippolitov, M.

AU - Kalechofsky, H.

AU - Kamermans, R.

AU - Karadjev, K.

AU - Karpio, K.

AU - Kolb, B. W.

AU - Kosarev, I.

AU - Koutcheryaev, I.

AU - Kugler, A.

AU - Kulinich, P.

AU - Kurata, M.

AU - Lebedev, A.

AU - Lohner, H.

AU - Luquin, L.

AU - Mahapatra, D. P.

AU - Manko, V.

AU - Martin, M.

AU - Martinez, G.

AU - Maximov, A.

AU - Miake, Y.

AU - Mishra, G. C.

AU - Mohanty, B.

AU - Mora, M.-J.

AU - Morrison, D.

AU - Mukhanova, T.

AU - Mukhopadhyay, D. S.

AU - Naef, H.

AU - Nandi, B. K.

AU - Nayak, S. K.

AU - Nayak, T. K.

AU - Nianine, A.

AU - Nikitine, V.

AU - Nikolaev, S.

AU - Nilsson, Pål

AU - Nishimura, S.

AU - Nomokonov, P.

AU - Nystrand, Joakim

AU - Oskarsson, Anders

AU - Otterlund, Ingvar

AU - Pavliouk, S.

AU - Peitzmann, T.

AU - Peressounko, D.

AU - Petracek, V.

AU - Phatak, S. C.

AU - Pinganaud, W.

AU - Plasil, F.

AU - Purschke, M. L.

AU - Rak, J.

AU - Raniwala, R.

AU - Raniwala, S.

AU - Rao, N. K.

AU - Retiere, F.

AU - Reygers, K.

AU - Roland, G.

AU - Rosselet, L.

AU - Roufanov, I.

AU - Roy, C.

AU - Rubio, J. M.

AU - Sambyal, S. S.

AU - Santo, R.

AU - Sato, S.

AU - Schlagheck, H.

AU - Schmidt, H.-R.

AU - Schutz, Y.

AU - Shabratova, G.

AU - Shah, T. H.

AU - Sibiriak, I.

AU - Siemiarczuk, T.

AU - Silvermyr, David

AU - Sinha, B. C.

AU - Slavine, N.

AU - Söderström, Kaj

AU - Sood, G.

AU - Sorensen, S. P.

AU - Stankus, P.

AU - Stefanek, G.

AU - Steinberg, P.

AU - Stenlund, Evert

AU - Sumbera, M.

AU - Svensson, Tomas

AU - Tsvetkov, A.

AU - Tykarski, L.

AU - v. d. Pijll, E. C.

AU - Eijndhoven, N. V.

AU - Nieuwenhuizen, G. J. v.

AU - Vinogradov, A.

AU - Viyogi, Y. P.

AU - Vodopianov, A.

AU - Voeroes, S.

AU - Wyslouch, B.

AU - Young, G. R.

PY - 2006

Y1 - 2006

N2 - 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.

AB - 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.

U2 - 10.1140/epjc/s10052-006-0081-x

DO - 10.1140/epjc/s10052-006-0081-x

M3 - Article

SN - 1434-6044

VL - 48

SP - 343

EP - 352

JO - European Physical Journal C. Particles and Fields

JF - European Physical Journal C. Particles and Fields

IS - 2

ER -

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

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