Pion freeze-out time in Pb+Pb collisions at 158 AGeV/c studied via π-/π+ 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. Büsching; L. Carlen; 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; S. Garpman; O. Gavrishchuk; F. J M Geurts; T. K. Ghosh; R. Glasow; B. Guskov; H. A. 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. Löhner; 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; P. Nilsson; S. Nishimura; P. Nomokonov; J. Nystrand; A. Oskarsson; I. 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; D. Silvermyr; B. C. Sinha; N. Slavine; K. Söderström; G. Sood; S. P. Sorensen; P. Stankus; G. Stefanek; P. Steinberg; E. Stenlund; M. Sumbera; T. 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. Vörös; B. Wyslouch; G. R. Young

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

Pion freeze-out time in Pb+Pb collisions at 158 AGeV/c studied via π^-/π⁺ 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. Büsching, L. Carlen, 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, S. Garpman, O. Gavrishchuk, F. J M Geurts, T. K. Ghosh, R. Glasow, B. Guskov, H. A. 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. Löhner, 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, P. Nilsson, S. Nishimura, P. Nomokonov, J. Nystrand, A. Oskarsson, I. 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, D. Silvermyr, B. C. Sinha, N. Slavine, K. Söderström, G. Sood, S. P. Sorensen, P. Stankus, G. Stefanek, P. Steinberg, E. Stenlund, M. Sumbera, T. 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. Vörös, 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 158∈AGeV/c has been investigated in the WA98 experiment through the study of the π^-/π⁺ and K ^-/K⁺ ratios measured as a function of m_T-m ₀. While the ratio for kaons shows no significant m_T dependence, the π^-/π⁺ ratio is enhanced at small m_T-m₀ 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 π^-/π⁺ 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 (US)
Pages (from-to)	343-352
Number of pages	10
Journal	European Physical Journal C
Volume	48
Issue number	2
DOIs	https://doi.org/10.1140/epjc/s10052-006-0081-x
State	Published - Nov 2006

ASJC Scopus subject areas

Engineering (miscellaneous)
Physics and Astronomy (miscellaneous)

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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., Büsching, H., Carlen, L., ... Young, G. R. (2006). Pion freeze-out time in Pb+Pb collisions at 158 AGeV/c studied via π^-/π⁺ and K^-/K⁺ ratios. European Physical Journal C, 48(2), 343-352. https://doi.org/10.1140/epjc/s10052-006-0081-x

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, Büsching, H, Carlen, L, Chattopadhyay, S, Decowski, MP, Delagrange, H, Donni, P, Dutta Majumdar, MR, 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, HA, 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, Löhner, H, Luquin, L, Mahapatra, DP, Manko, V, Martin, M, Martinez, G, Maximov, A, Miake, Y, Mishra, GC, Mohanty, B, Mora, MJ, 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, HR, 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, Pijll, ECVD, Eijndhoven, NV, Nieuwenhuizen, GJV, Vinogradov, A, Viyogi, YP, Vodopianov, A, Vörös, S, Wyslouch, B & Young, GR 2006, 'Pion freeze-out time in Pb+Pb collisions at 158 AGeV/c studied via π^-/π⁺ and K^-/K⁺ ratios', European Physical Journal C, vol. 48, no. 2, pp. 343-352. https://doi.org/10.1140/epjc/s10052-006-0081-x

@article{ed29210368f2495ebf415e609a3aa056,

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

abstract = "The effect of the final state Coulomb interaction on particles produced in Pb+Pb collisions at 158∈AGeV/c has been investigated in the WA98 experiment through the study of the π-/π+ and K -/K+ ratios measured as a function of mT-m 0. While the ratio for kaons shows no significant mT dependence, the π-/π+ ratio is enhanced at small mT-m0 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 π-/π+ 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. B{\"u}sching and L. Carlen and S. Chattopadhyay and Decowski, {M. P.} and H. Delagrange and P. Donni and {Dutta Majumdar}, {M. R.} and {El Chenawi}, K. and Dubey, {A. K.} and K. Enosawa and S. Fokin and V. Frolov and Ganti, {M. S.} and S. Garpman and O. Gavrishchuk and Geurts, {F. J M} and Ghosh, {T. K.} and R. Glasow and B. Guskov and Gustafsson, {H. A.} 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. L{\"o}hner 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 Mora, {M. J.} 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. Nilsson and S. Nishimura and P. Nomokonov and J. Nystrand and A. Oskarsson and I. 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 Schmidt, {H. R.} and Y. Schutz and G. Shabratova and Shah, {T. H.} and I. Sibiriak and T. Siemiarczuk and D. Silvermyr and Sinha, {B. C.} and N. Slavine and K. S{\"o}derstr{\"o}m and G. Sood and Sorensen, {S. P.} and P. Stankus and G. Stefanek and P. Steinberg and E. Stenlund and M. Sumbera and T. Svensson and A. Tsvetkov and L. Tykarski and Pijll, {E. C V D} and Eijndhoven, {N. V.} and Nieuwenhuizen, {G. J V} and A. Vinogradov and Viyogi, {Y. P.} and A. Vodopianov and S. V{\"o}r{\"o}s and B. Wyslouch and Young, {G. R.}",

year = "2006",

month = nov,

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

language = "English (US)",

volume = "48",

pages = "343--352",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer New York",

number = "2",

}

TY - JOUR

T1 - Pion freeze-out time in Pb+Pb collisions at 158 AGeV/c studied via π-/π+ 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 - Büsching, H.

AU - Carlen, L.

AU - Chattopadhyay, S.

AU - Decowski, M. P.

AU - Delagrange, H.

AU - Donni, P.

AU - Dutta Majumdar, M. R.

AU - El Chenawi, K.

AU - Dubey, A. K.

AU - Enosawa, K.

AU - Fokin, S.

AU - Frolov, V.

AU - Ganti, M. S.

AU - Garpman, S.

AU - Gavrishchuk, O.

AU - Geurts, F. J M

AU - Ghosh, T. K.

AU - Glasow, R.

AU - Guskov, B.

AU - Gustafsson, H. A.

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 - Löhner, 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, P.

AU - Nishimura, S.

AU - Nomokonov, P.

AU - Nystrand, J.

AU - Oskarsson, A.

AU - Otterlund, I.

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, D.

AU - Sinha, B. C.

AU - Slavine, N.

AU - Söderström, K.

AU - Sood, G.

AU - Sorensen, S. P.

AU - Stankus, P.

AU - Stefanek, G.

AU - Steinberg, P.

AU - Stenlund, E.

AU - Sumbera, M.

AU - Svensson, T.

AU - Tsvetkov, A.

AU - Tykarski, L.

AU - Pijll, E. C V D

AU - Eijndhoven, N. V.

AU - Nieuwenhuizen, G. J V

AU - Vinogradov, A.

AU - Viyogi, Y. P.

AU - Vodopianov, A.

AU - Vörös, S.

AU - Wyslouch, B.

AU - Young, G. R.

PY - 2006/11

Y1 - 2006/11

N2 - The effect of the final state Coulomb interaction on particles produced in Pb+Pb collisions at 158∈AGeV/c has been investigated in the WA98 experiment through the study of the π-/π+ and K -/K+ ratios measured as a function of mT-m 0. While the ratio for kaons shows no significant mT dependence, the π-/π+ ratio is enhanced at small mT-m0 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 π-/π+ 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 158∈AGeV/c has been investigated in the WA98 experiment through the study of the π-/π+ and K -/K+ ratios measured as a function of mT-m 0. While the ratio for kaons shows no significant mT dependence, the π-/π+ ratio is enhanced at small mT-m0 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 π-/π+ 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.

UR - http://www.scopus.com/inward/record.url?scp=33845189854&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33845189854&partnerID=8YFLogxK

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

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

M3 - Article

AN - SCOPUS:33845189854

SN - 1434-6044

VL - 48

SP - 343

EP - 352

JO - European Physical Journal C

JF - European Physical Journal C

IS - 2

ER -

Pion freeze-out time in Pb+Pb collisions at 158 AGeV/c studied via π^-/π⁺ and K^-/K⁺ ratios

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