Event-by-event charged-neutral fluctuations in Pb+Pb collisions at 158 A GeV

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; R. Gupta; 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. Liu; H. Löhner; L. Luquin; D. P. Mahapatra; V. Manko; M. Martin; G. Martínez; A. Maximov; Y. Miake; G. C. Mishra; B. Mohanty; M. J. Mora; D. Morrison; T. Moukhanova; 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; W. Pinanaud; 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. Sørensen; 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. Wysłouch; G. R. Young

doi:10.1016/j.physletb.2011.06.003

Event-by-event charged-neutral fluctuations in Pb+Pb collisions at 158 A GeV

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, R. Gupta, 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. Liu, H. Löhner, L. Luquin, D. P. Mahapatra, V. Manko, M. Martin, G. Martínez, A. Maximov, Y. Miake, G. C. Mishra, B. Mohanty, M. J. Mora, D. Morrison, T. Moukhanova, 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, W. Pinanaud, 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. Sørensen, 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. Wysłouch, G. R. Young

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

Charged particles and photons have been measured in central Pb + Pb collisions at 158 A GeV in a common (η-φ)-phase space region in the WA98 experiment at the CERN SPS. The measured distributions have been analyzed to quantify the frequency with which phase space regions of varying sizes have either small or large neutral pion fraction. The measured results are compared with VENUS model simulated events and with mixed events. Events with both large and small charged-neutral fluctuations are observed to occur more frequently than expected statistically, as deduced from mixed events, or as predicted by model simulations, with the difference becoming more prominent with decreasing size of the δ η-δ η region.

Original language	English (US)
Pages (from-to)	300-305
Number of pages	6
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	701
Issue number	3
DOIs	https://doi.org/10.1016/j.physletb.2011.06.003
State	Published - Jul 11 2011

Keywords

Charged-neutral fluctuations
Disoriented chiral condensate
Photon multiplicity detector
Silicon pad multiplicity detector
Sliding window method
The WA98 experiment

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1016/j.physletb.2011.06.003

Cite this

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. (2011). Event-by-event charged-neutral fluctuations in Pb+Pb collisions at 158 A GeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 701(3), 300-305. https://doi.org/10.1016/j.physletb.2011.06.003

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, Gupta, 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, Liu, H, Löhner, H, Luquin, L, Mahapatra, DP, Manko, V, Martin, M, Martínez, G, Maximov, A, Miake, Y, Mishra, GC, Mohanty, B, Mora, MJ, Morrison, D, Moukhanova, 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, Pinanaud, 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, Sørensen, 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, Wysłouch, B & Young, GR 2011, 'Event-by-event charged-neutral fluctuations in Pb+Pb collisions at 158 A GeV', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 701, no. 3, pp. 300-305. https://doi.org/10.1016/j.physletb.2011.06.003

@article{07f6d8ac2fe041b3b84972f7d7022992,

title = "Event-by-event charged-neutral fluctuations in Pb+Pb collisions at 158 A GeV",

abstract = "Charged particles and photons have been measured in central Pb + Pb collisions at 158 A GeV in a common (η-φ)-phase space region in the WA98 experiment at the CERN SPS. The measured distributions have been analyzed to quantify the frequency with which phase space regions of varying sizes have either small or large neutral pion fraction. The measured results are compared with VENUS model simulated events and with mixed events. Events with both large and small charged-neutral fluctuations are observed to occur more frequently than expected statistically, as deduced from mixed events, or as predicted by model simulations, with the difference becoming more prominent with decreasing size of the δ η-δ η region.",

keywords = "Charged-neutral fluctuations, Disoriented chiral condensate, Photon multiplicity detector, Silicon pad multiplicity detector, Sliding window method, The WA98 experiment",

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 R. Gupta 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. Liu and H. L{\"o}hner and L. Luquin and Mahapatra, {D. P.} and V. Manko and M. Martin and G. Mart{\'i}nez and A. Maximov and Y. Miake and Mishra, {G. C.} and B. Mohanty and Mora, {M. J.} and D. Morrison and T. Moukhanova 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 W. Pinanaud 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 S{\o}rensen, {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. Wys{\l}ouch and Young, {G. R.}",

note = "Funding Information: We wish to thank the CERN accelerator division for the excellent performance of the SPS accelerator complex. We acknowledge with appreciation the effort of all engineers, technicians, and support staff who have participated in the construction of this experiment. This work was supported jointly by the German BMBF and DFG , the U.S. DOE , the Swedish NFR and FRN , the Dutch Stichting FOM , the Polish MEiN under Contract No. 1P03B02230 and CERN/88/2006 The Grant Agency of the Czech Republic under contract No. 202/95/0217 , the Department of Atomic Energy , the Department of Science and Technology , the Council of Scientific and Industrial Research and the University Grants Commission of the Government of India , the Indo-FRG Exchange Program , the PPE division of CERN , the Swiss National Fund , the INTAS under Contract INTAS-97-0158 , ORISE , Grant-in-Aid for Scientific Research (Specially Promoted Research & International Scientific Research) of the Ministry of Education, Science and Culture , the University of Tsukuba Special Research Projects, and the JSPS Research Fellowships for Young Scientists. ORNL is managed by UT-Battelle, LLC, for the U.S. DOE under contract DE-AC05-00OR22725 . The MIT group has been supported by the U.S. Dept. of Energy under the cooperative agreement DE-FC02-94ER40818 .",

year = "2011",

month = jul,

day = "11",

doi = "10.1016/j.physletb.2011.06.003",

language = "English (US)",

volume = "701",

pages = "300--305",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

number = "3",

}

TY - JOUR

T1 - Event-by-event charged-neutral fluctuations in Pb+Pb collisions at 158 A GeV

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 - Gupta, 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 - Liu, H.

AU - Löhner, H.

AU - Luquin, L.

AU - Mahapatra, D. P.

AU - Manko, V.

AU - Martin, M.

AU - Martínez, G.

AU - Maximov, A.

AU - Miake, Y.

AU - Mishra, G. C.

AU - Mohanty, B.

AU - Mora, M. J.

AU - Morrison, D.

AU - Moukhanova, 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 - Pinanaud, 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 - Sørensen, 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 - Wysłouch, B.

AU - Young, G. R.

N1 - Funding Information: We wish to thank the CERN accelerator division for the excellent performance of the SPS accelerator complex. We acknowledge with appreciation the effort of all engineers, technicians, and support staff who have participated in the construction of this experiment. This work was supported jointly by the German BMBF and DFG , the U.S. DOE , the Swedish NFR and FRN , the Dutch Stichting FOM , the Polish MEiN under Contract No. 1P03B02230 and CERN/88/2006 The Grant Agency of the Czech Republic under contract No. 202/95/0217 , the Department of Atomic Energy , the Department of Science and Technology , the Council of Scientific and Industrial Research and the University Grants Commission of the Government of India , the Indo-FRG Exchange Program , the PPE division of CERN , the Swiss National Fund , the INTAS under Contract INTAS-97-0158 , ORISE , Grant-in-Aid for Scientific Research (Specially Promoted Research & International Scientific Research) of the Ministry of Education, Science and Culture , the University of Tsukuba Special Research Projects, and the JSPS Research Fellowships for Young Scientists. ORNL is managed by UT-Battelle, LLC, for the U.S. DOE under contract DE-AC05-00OR22725 . The MIT group has been supported by the U.S. Dept. of Energy under the cooperative agreement DE-FC02-94ER40818 .

PY - 2011/7/11

Y1 - 2011/7/11

N2 - Charged particles and photons have been measured in central Pb + Pb collisions at 158 A GeV in a common (η-φ)-phase space region in the WA98 experiment at the CERN SPS. The measured distributions have been analyzed to quantify the frequency with which phase space regions of varying sizes have either small or large neutral pion fraction. The measured results are compared with VENUS model simulated events and with mixed events. Events with both large and small charged-neutral fluctuations are observed to occur more frequently than expected statistically, as deduced from mixed events, or as predicted by model simulations, with the difference becoming more prominent with decreasing size of the δ η-δ η region.

AB - Charged particles and photons have been measured in central Pb + Pb collisions at 158 A GeV in a common (η-φ)-phase space region in the WA98 experiment at the CERN SPS. The measured distributions have been analyzed to quantify the frequency with which phase space regions of varying sizes have either small or large neutral pion fraction. The measured results are compared with VENUS model simulated events and with mixed events. Events with both large and small charged-neutral fluctuations are observed to occur more frequently than expected statistically, as deduced from mixed events, or as predicted by model simulations, with the difference becoming more prominent with decreasing size of the δ η-δ η region.

KW - Charged-neutral fluctuations

KW - Disoriented chiral condensate

KW - Photon multiplicity detector

KW - Silicon pad multiplicity detector

KW - Sliding window method

KW - The WA98 experiment

UR - http://www.scopus.com/inward/record.url?scp=79960354981&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79960354981&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2011.06.003

DO - 10.1016/j.physletb.2011.06.003

M3 - Article

AN - SCOPUS:79960354981

SN - 0370-2693

VL - 701

SP - 300

EP - 305

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 3

ER -

Event-by-event charged-neutral fluctuations in Pb+Pb collisions at 158 A GeV

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