Azimuthal anisotropy of photon and charged particle emissionin 208Pb + 208Pb collisions at 158 $\cdot A$ GeV/c

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.; Bhatia, V. S.; Blume, C.; Bucher, D.; Büsching, H.; Carlén, L.; Chattopadhyay, S.; Decowski, M. P.; Delagrange, H.; Donni, P.; Dutta Majumdar, M. R.; Dubey, A. K.; El Chenawi, K.; Enosawa, K.; Fokin, S.; Frolov, V.; Ganti, M. S.; Garpman, S.; Gavrishchuk, O.; Geurts, F. J.M.; Ghosh, T. K.; Glasow, R.; Gupta, R.; Guskov, B.; Gustafsson, H. A.; Gutbrod, H. H.; Hrivnacova, I.; Ippolitov, M.; Kalechofsky, H.; Kamermans, R.; Karadjev, K.; Karpio, K.; Kolb, B. W.; Kosarev, I.; Koutcheryaev, I.; Kugler, A.; Kulinich, P.; Kurata, M.; Lebedev, A.; Löhner, H.; Luquin, L.; Mahapatra, D. P.; Manko, V.; Martin, M.; Martínez, G.; Maximov, A.; Miake, Y.; Mishra, G. C.; Mohanty, B.; Mora, M. J.; Morrison, D.; Moukhanova, T.; Mukhopadhyay, D. S.; Naef, H.; Nandi, B. K.; Nayak, S. K.; Nayak, T. K.; Nianine, A.; Nikitine, V.; Nikolaev, S.; Nilsson, P.; Nishimura, S.; Nomokonov, P.; Nystrand, J.; Oskarsson, A.; Otterlund, I.; Peitzmann, T.; Peressounko, D.; Petracek, V.; Phatak, S. C.; Pinganaud, W.; Plasil, F.; Purschke, M. L.; Rak, J.; Raniwala, R.; Raniwala, S.; Rao, N. K.; Retiere, F.; Reygers, K.; Roland, G.; Rosselet, L.; Roufanov, I.; Roy, C.; Rubio, J. M.; Sambyal, S. S.; Santo, R.; Sato, S.; Schlagheck, H.

doi:10.1140/epjc/s2005-02249-2

Title: Azimuthal anisotropy of photon and charged particle emissionin ²⁰⁸Pb + ²⁰⁸Pb collisions at 158 $$\cdot A$$ GeV/c

Abstract

The azimuthal distributions of photons and charged particles with respect to the event plane are investigated as a function of centrality in ²⁰⁸Pb + ²⁰⁸Pb collisions at 158 · A GeV/c in the WA98 experiment at the CERN SPS. The anisotropy of the azimuthal distributions is characterized using a Fourier analysis. For both the photon and charged particle distributions the first two Fourier coefficients are observed to decrease with increasing centrality. The observed anisotropies of the photon distributions compare well with the expectations from the charged particle measurements for all centralities.

Authors:: 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.; Bhatia, V. S.; Blume, C.; Bucher, D.; Büsching, H.; Carlén, L.; Chattopadhyay, S.; Decowski, M. P. more »« less

Publication Date:: Wed May 04 00:00:00 EDT 2005

Research Org.:: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Sponsoring Org.:: USDOE Office of Science (SC)

Contributing Org.:: The WA98 Collaboration

OSTI Identifier:: 1410303

Grant/Contract Number:: AC02-05CH11231; FC02-94ER40818; AC05-00OR22725; 202/95/0217; 621/E-78/SPUB-M/CERN/P-03/DZ211/

Resource Type:: Accepted Manuscript

Journal Name:: European Physical Journal. C, Particles and Fields

Additional Journal Information:: Journal Volume: 41; Journal Issue: 3; Journal ID: ISSN 1434-6044

Publisher:: Springer

Country of Publication:: United States

Language:: English

Subject:: 74 ATOMIC AND MOLECULAR PHYSICS

Citation Formats


                    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., Bhatia, V. S., Blume, C., Bucher, D., Büsching, H., Carlén, L., Chattopadhyay, S., Decowski, M. P., Delagrange, H., Donni, P., Dutta Majumdar, M. R., Dubey, A. K., El Chenawi, K., Enosawa, K., Fokin, S., Frolov, V., Ganti, M. S., Garpman, S., Gavrishchuk, O., Geurts, F. J.M., Ghosh, T. K., Glasow, R., Gupta, R., Guskov, B., Gustafsson, H. A., Gutbrod, H. H., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Karadjev, K., Karpio, K., Kolb, B. W., Kosarev, I., Koutcheryaev, I., Kugler, A., Kulinich, P., Kurata, M., Lebedev, A., Löhner, H., Luquin, L., Mahapatra, D. P., Manko, V., Martin, M., Martínez, G., Maximov, A., Miake, Y., Mishra, G. C., Mohanty, B., Mora, M. J., Morrison, D., Moukhanova, T., Mukhopadhyay, D. S., Naef, H., Nandi, B. K., Nayak, S. K., Nayak, T. K., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Oskarsson, A., Otterlund, I., Peitzmann, T., Peressounko, D., Petracek, V., Phatak, S. C., Pinganaud, W., Plasil, F., Purschke, M. L., Rak, J., Raniwala, R., Raniwala, S., Rao, N. K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J. M., Sambyal, S. S., Santo, R., Sato, S., and Schlagheck, H. Azimuthal anisotropy of photon and charged particle emissionin 208Pb + 208Pb collisions at 158 $\cdot A$ GeV/c.  United States: N. p., 2005. 
Web.  doi:10.1140/epjc/s2005-02249-2.

Copy to clipboard


                    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., Bhatia, V. S., Blume, C., Bucher, D., Büsching, H., Carlén, L., Chattopadhyay, S., Decowski, M. P., Delagrange, H., Donni, P., Dutta Majumdar, M. R., Dubey, A. K., El Chenawi, K., Enosawa, K., Fokin, S., Frolov, V., Ganti, M. S., Garpman, S., Gavrishchuk, O., Geurts, F. J.M., Ghosh, T. K., Glasow, R., Gupta, R., Guskov, B., Gustafsson, H. A., Gutbrod, H. H., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Karadjev, K., Karpio, K., Kolb, B. W., Kosarev, I., Koutcheryaev, I., Kugler, A., Kulinich, P., Kurata, M., Lebedev, A., Löhner, H., Luquin, L., Mahapatra, D. P., Manko, V., Martin, M., Martínez, G., Maximov, A., Miake, Y., Mishra, G. C., Mohanty, B., Mora, M. J., Morrison, D., Moukhanova, T., Mukhopadhyay, D. S., Naef, H., Nandi, B. K., Nayak, S. K., Nayak, T. K., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Oskarsson, A., Otterlund, I., Peitzmann, T., Peressounko, D., Petracek, V., Phatak, S. C., Pinganaud, W., Plasil, F., Purschke, M. L., Rak, J., Raniwala, R., Raniwala, S., Rao, N. K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J. M., Sambyal, S. S., Santo, R., Sato, S., & Schlagheck, H. Azimuthal anisotropy of photon and charged particle emissionin 208Pb + 208Pb collisions at 158 $\cdot A$ GeV/c.  United States.  https://doi.org/10.1140/epjc/s2005-02249-2

Copy to clipboard


                    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., Bhatia, V. S., Blume, C., Bucher, D., Büsching, H., Carlén, L., Chattopadhyay, S., Decowski, M. P., Delagrange, H., Donni, P., Dutta Majumdar, M. R., Dubey, A. K., El Chenawi, K., Enosawa, K., Fokin, S., Frolov, V., Ganti, M. S., Garpman, S., Gavrishchuk, O., Geurts, F. J.M., Ghosh, T. K., Glasow, R., Gupta, R., Guskov, B., Gustafsson, H. A., Gutbrod, H. H., Hrivnacova, I., Ippolitov, M., Kalechofsky, H., Kamermans, R., Karadjev, K., Karpio, K., Kolb, B. W., Kosarev, I., Koutcheryaev, I., Kugler, A., Kulinich, P., Kurata, M., Lebedev, A., Löhner, H., Luquin, L., Mahapatra, D. P., Manko, V., Martin, M., Martínez, G., Maximov, A., Miake, Y., Mishra, G. C., Mohanty, B., Mora, M. J., Morrison, D., Moukhanova, T., Mukhopadhyay, D. S., Naef, H., Nandi, B. K., Nayak, S. K., Nayak, T. K., Nianine, A., Nikitine, V., Nikolaev, S., Nilsson, P., Nishimura, S., Nomokonov, P., Nystrand, J., Oskarsson, A., Otterlund, I., Peitzmann, T., Peressounko, D., Petracek, V., Phatak, S. C., Pinganaud, W., Plasil, F., Purschke, M. L., Rak, J., Raniwala, R., Raniwala, S., Rao, N. K., Retiere, F., Reygers, K., Roland, G., Rosselet, L., Roufanov, I., Roy, C., Rubio, J. M., Sambyal, S. S., Santo, R., Sato, S., and Schlagheck, H. Wed .  
"Azimuthal anisotropy of photon and charged particle emissionin 208Pb + 208Pb collisions at 158 $\cdot A$ GeV/c".  United States.  https://doi.org/10.1140/epjc/s2005-02249-2.  https://www.osti.gov/servlets/purl/1410303.

Copy to clipboard


                    
@article{osti_1410303,

  title        = {Azimuthal anisotropy of photon and charged particle emissionin 208Pb + 208Pb collisions at 158 $\cdot A$ GeV/c},

  author       = {Aggarwal, M. M. and Ahammed, Z. and Angelis, A. L.S. and Antonenko, V. and Arefiev, V. and Astakhov, V. and Avdeitchikov, V. and Awes, T. C. and Baba, P. V.K.S. and Badyal, S. K. and Bathe, S. and Batiounia, B. and Bernier, T. and Bhatia, V. S. and Blume, C. and Bucher, D. and Büsching, H. and Carlén, L. and Chattopadhyay, S. and Decowski, M. P. and Delagrange, H. and Donni, P. and Dutta Majumdar, M. R. and Dubey, A. K. and El Chenawi, K. and Enosawa, K. and Fokin, S. and Frolov, V. and Ganti, M. S. and Garpman, S. and Gavrishchuk, O. and Geurts, F. J.M. and Ghosh, T. K. and Glasow, R. and Gupta, R. and Guskov, B. and Gustafsson, H. A. and Gutbrod, H. H. and Hrivnacova, I. and Ippolitov, M. and Kalechofsky, H. and Kamermans, R. and Karadjev, K. and Karpio, K. and Kolb, B. W. and Kosarev, I. and Koutcheryaev, I. and Kugler, A. and Kulinich, P. and Kurata, M. and Lebedev, A. and Löhner, H. and Luquin, L. and Mahapatra, D. P. and Manko, V. and Martin, M. and Martínez, G. and Maximov, A. and Miake, Y. and Mishra, G. C. and Mohanty, B. and Mora, M. J. and Morrison, D. and Moukhanova, T. and Mukhopadhyay, D. S. and Naef, H. and Nandi, B. K. and Nayak, S. K. and Nayak, T. K. and Nianine, A. and Nikitine, V. and Nikolaev, S. and Nilsson, P. and Nishimura, S. and Nomokonov, P. and Nystrand, J. and Oskarsson, A. and Otterlund, I. and Peitzmann, T. and Peressounko, D. and Petracek, V. and Phatak, S. C. and Pinganaud, W. and Plasil, F. and Purschke, M. L. and Rak, J. and Raniwala, R. and Raniwala, S. and Rao, N. K. and Retiere, F. and Reygers, K. and Roland, G. and Rosselet, L. and Roufanov, I. and Roy, C. and Rubio, J. M. and Sambyal, S. S. and Santo, R. and Sato, S. and Schlagheck, H.},

  abstractNote = {The azimuthal distributions of photons and charged particles with respect to the event plane are investigated as a function of centrality in 208Pb + 208Pb collisions at 158 · A GeV/c in the WA98 experiment at the CERN SPS. The anisotropy of the azimuthal distributions is characterized using a Fourier analysis. For both the photon and charged particle distributions the first two Fourier coefficients are observed to decrease with increasing centrality. The observed anisotropies of the photon distributions compare well with the expectations from the charged particle measurements for all centralities.},

  doi          = {10.1140/epjc/s2005-02249-2},

  journal      = {European Physical Journal. C, Particles and Fields},

  number       = 3,

  volume       = 41,

  place        = {United States},

  year         = {Wed May 04 00:00:00 EDT 2005},

  month        = {Wed May 04 00:00:00 EDT 2005}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (DOE)

Publisher's Version of Record

https://doi.org/10.1140/epjc/s2005-02249-2

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 14 works

Citation information provided by
Web of Science

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Collective Flow Observed in Relativistic Nuclear Collisions
journal, April 1984

Gustafsson, H. A.; Gutbrod, H. H.; Kolb, B.
Physical Review Letters, Vol. 52, Issue 18
DOI: 10.1103/PhysRevLett.52.1590

Collective flow in Heavy-Ion Collisions
journal, December 1997

Reisdorf, W.; Ritter, H. G.
Annual Review of Nuclear and Particle Science, Vol. 47, Issue 1
DOI: 10.1146/annurev.nucl.47.1.663

The Energy Dependence of Flow in Ni Induced Collisions from $400 A$ to $1970 A MeV$
journal, March 1997

Chance, J.; Albergo, S.; Bieser, F.
Physical Review Letters, Vol. 78, Issue 13
DOI: 10.1103/PhysRevLett.78.2535

Evidence for collective expansion in light-particle emission following Au+Au collisions at 100, 150 and 250 A·MeV
journal, April 1995

Poggi, G.; Pasquali, G.; Bini, M.
Nuclear Physics A, Vol. 586, Issue 4
DOI: 10.1016/0375-9474(95)00042-Y

Azimuthally anisotropic emission of pions in symmetric heavy-ion collisions
journal, July 1993

Brill, D.; Ahner, W.; Baltes, P.
Physical Review Letters, Vol. 71, Issue 3
DOI: 10.1103/PhysRevLett.71.336

Observation of Anisotropic Event Shapes and Transverse Flow in Ultrarelativistic Au + Au Collisions
journal, November 1994

Barrette, J.; Bellwied, R.; Bennett, S.
Physical Review Letters, Vol. 73, Issue 19
DOI: 10.1103/PhysRevLett.73.2532

Proton, deuteron, and triton emission at target rapidity in Au+Au collisions at $10.20 A$ GeV: Spectra and directed flow
journal, March 1998

Ahle, L.; Akiba, Y.; Ashktorab, K.
Physical Review C, Vol. 57, Issue 3
DOI: 10.1103/PhysRevC.57.1416

Azimuthal anisotropy in S + Au reactions at 200 A GeV
journal, June 1997

Aggarwal, M. M.; Angelis, A. L. S.; Antonenko, V.
Physics Letters B, Vol. 403, Issue 3-4
DOI: 10.1016/S0370-2693(97)00566-2

Elliptic emission of K+ and π+ in 158 A·GeV Pb + Pb collisions
journal, December 1999

Aggarwal, M. M.; Agnihotri, A.; Ahammed, Z.
Physics Letters B, Vol. 469, Issue 1-4
DOI: 10.1016/S0370-2693(99)01289-7

Stopping and collective effects at SPS energies
journal, December 1996

Wienold, T.; Afanasiev, S. V.; Alber, T.
Nuclear Physics A, Vol. 610
DOI: 10.1016/S0375-9474(96)00344-2

Elliptic Flow in $A u + A u$ Collisions at $\sqrt s_{NN} = 130 GeV$
journal, January 2001

Ackermann, K. H.; Adams, N.; Adler, C.
Physical Review Letters, Vol. 86, Issue 3
DOI: 10.1103/PhysRevLett.86.402

Pseudorapidity and Centrality Dependence of the Collective Flow of Charged Particles in $A u + A u$ Collisions at $\sqrt{s_{N N}} = 130 G e V$
journal, November 2002

Back, B. B.; Baker, M. D.; Barton, D. S.
Physical Review Letters, Vol. 89, Issue 22
DOI: 10.1103/PhysRevLett.89.222301

Disappearance of Elliptic Flow: A New Probe for the Nuclear Equation of State
journal, September 1998

Danielewicz, P.; Lacey, Roy A.; Gossiaux, P. -B.
Physical Review Letters, Vol. 81, Issue 12
DOI: 10.1103/PhysRevLett.81.2438

Kaon Flow as a Probe of the Kaon Potential in Nuclear Medium
journal, January 1995

Li, G. Q.; Ko, C. M.; Li, Bao-An
Physical Review Letters, Vol. 74, Issue 2
DOI: 10.1103/PhysRevLett.74.235

Elliptic flow and Hanbury-Brown–Twiss correlations in noncentral nuclear collisions
journal, May 1999

Heiselberg, Henning; Levy, Anne-Marie
Physical Review C, Vol. 59, Issue 5
DOI: 10.1103/PhysRevC.59.2716

Anisotropy as a signature of transverse collective flow
journal, July 1992

Ollitrault, Jean-Yves
Physical Review D, Vol. 46, Issue 1
DOI: 10.1103/PhysRevD.46.229

Centrality dependence of multiplicity, transverse energy, and elliptic flow from hydrodynamics
journal, December 2001

Kolb, P. F.; Heinz, U.; Huovinen, P.
Nuclear Physics A, Vol. 696, Issue 1-2
DOI: 10.1016/S0375-9474(01)01114-9

Anisotropic transverse flow and the quark-hadron phase transition
journal, October 2000

Kolb, Peter F.; Sollfrank, Josef; Heinz, Ulrich
Physical Review C, Vol. 62, Issue 5
DOI: 10.1103/PhysRevC.62.054909

Elliptical Flow: A Signature for Early Pressure in Ultrarelativistic Nucleus-Nucleus Collisions
journal, March 1997

Sorge, Heinz
Physical Review Letters, Vol. 78, Issue 12
DOI: 10.1103/PhysRevLett.78.2309

Highly Sensitive Centrality Dependence of Elliptic Flow: A Novel Signature of the Phase Transition in QCD
journal, March 1999

Sorge, H.
Physical Review Letters, Vol. 82, Issue 10
DOI: 10.1103/PhysRevLett.82.2048

The physics of the centrality dependence of elliptic flow
journal, February 2000

Voloshin, S. A.; Poskanzer, A. M.
Physics Letters B, Vol. 474, Issue 1-2
DOI: 10.1016/S0370-2693(00)00017-4

Determination of azimuthal anisotropy of neutral pions from the measured anisotropy of photons in ultra-relativistic nuclear collisions
journal, September 2000

Raniwala, Rashmi; Raniwala, Sudhir; Viyogi, Yogendra Pathak
Physics Letters B, Vol. 489, Issue 1-2
DOI: 10.1016/S0370-2693(00)00936-9

Flow with photon multiplicity detector: Past and future
journal, April 2003

Raniwala, Sudhir
Pramana, Vol. 60, Issue 4
DOI: 10.1007/BF02705172

Search for disoriented chiral condensates in 158 AGeV Pb+Pb collisions
journal, February 1998

Aggarwal, M. M.; Agnihotri, A.; Ahammed, Z.
Physics Letters B, Vol. 420, Issue 1-2
DOI: 10.1016/S0370-2693(97)01528-1

Development of a double metal, AC-coupled silicon pad detector
journal, April 1997

Lin, Willis T.; Chang, Yuan-Hann; Chen, Augustine E.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 389, Issue 3
DOI: 10.1016/S0168-9002(97)00346-X

A preshower photon multiplicity detector for the WA98 experiment
journal, March 1999

Aggarwal, M. M.; Agnihotri, A.; Ahammed, Z.
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 424, Issue 2-3
DOI: 10.1016/S0168-9002(98)01417-X

Systematics of inclusive photon production in 158·A GeV Pb induced reactions on Ni, Nb, and Pb targets
journal, July 1999

Aggarwal, M. M.; Agnihotri, A.; Ahammed, Z.
Physics Letters B, Vol. 458, Issue 2-3
DOI: 10.1016/S0370-2693(99)00560-2

Methods for analyzing anisotropic flow in relativistic nuclear collisions
journal, September 1998

Poskanzer, A. M.; Voloshin, S. A.
Physical Review C, Vol. 58, Issue 3
DOI: 10.1103/PhysRevC.58.1671

Directed and elliptic flow of charged pions and protons in $Pb + Pb$ collisions at $40 A$ and $158 A GeV$
journal, September 2003

Alt, C.; Anticic, T.; Baatar, B.
Physical Review C, Vol. 68, Issue 3
DOI: 10.1103/PhysRevC.68.034903

Flow and non-flow event anisotropies at the SPS
journal, March 2003

Slívová, J.
Nuclear Physics A, Vol. 715
DOI: 10.1016/S0375-9474(02)01545-2

Scaling of particle and transverse energy production in $^{208}$ Pb+ $^{208}$ Pb collisions at 158 $\cdot A$ GeV
journal, January 2001

Aggarwal et al., M. M.
The European Physical Journal C, Vol. 18, Issue 4
DOI: 10.1007/s100520100578

Works referencing / citing this record:

Hadronic and partonic sources of direct photons in relativistic heavy-ion collisions
text, January 2015

Linnyk, O.; Konchakovski, V.; Steinert, T.
arXiv
DOI: 10.48550/arxiv.1504.05699

Similar Records in DOE PAGES and OSTI.GOV collections:

Centrality Dependence of Neutral Pion Production in 158A GeV {sup 208}Pb+{sup 208}Pb Collisions

Journal Article Aggarwal, M M ; Bhatia, V S ; Agnihotri, A ; ... - Physical Review Letters

The production of neutral pions in 158A GeV {sup 208}Pb+ {sup 208}Pb collisions has been studied in the WA98 experiment at the CERN Super Proton Synchrotron (SPS). Transverse momentum spectra are studied for the range 0.3{le}m{sub T}{minus}m{sub 0}{le}4.0 GeV /c . The results for central collisions are compared to various models. The centrality dependence of the neutral pion spectral shape and yield is investigated. An invariance of the spectral shape and a simple scaling of the yield with the number of participating nucleons is observed for centralities with greater than about 30thinspthinspparticipating nucleons. This is most naturally explained by assumingmore »« less
https://doi.org/10.1103/PhysRevLett.81.4087
Event-by-event charged-neutral fluctuations in Pb+Pb collisions at 158 A~GeV.

Journal Article WA98, Collaboration - Physics Letters B

Charged particles and photons have been measured in central Pb + Pb collisions at 158 AGeV in a common ({eta}-{phi})-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 themore »« less
Event-by-Event Charged-Neutral Fluctuations in Pb + Pb Collisions at 158 A GeV

Journal Article Aggarwal, M. M. ; Ahammed, Z. ; Plasil, F ; ... - Physics Letters B

Charged particles and photons have been measured in central Pb + Pb collisions at 158 A GeV in a common ( )-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 modelmore »« less
https://doi.org/10.1016/j.physletb.2011.06.003
Freeze-Out Parameters in Central 158A GeV P{number_sign}^{208 b+Pb Collision80s}

Journal Article Aggarwal, M M ; Bhatia, V S ; Agnihotri, A ; ... - Physical Review Letters

Neutral pion production in central 158A GeV {sup 208}Pb+ {sup 208} Pb collisions has been studied in the WA98 experiment at the CERN Super Proton Synchrotron. The {pi}{sup 0} transverse mass spectrum has been analyzed in terms of a thermal model with hydrodynamic expansion. The high accuracy and large kinematic coverage of the measurement allow one to limit previously noted ambiguities in the extracted freeze-out parameters. The results are shown to be sensitive to the shape of the velocity distribution at freeze-out. {copyright} {ital 1999} {ital The American Physical Society }
https://doi.org/10.1103/PhysRevLett.83.926
Freeze-Out Parameters in Central 158A GeV P[number sign]^{208 b+Pb Collision80s}

Journal Article Aggarwal, M M ; Bhatia, V S ; Agnihotri, A ; ... - Physical Review Letters

Neutral pion production in central 158A GeV [sup 208]Pb+ [sup 208] Pb collisions has been studied in the WA98 experiment at the CERN Super Proton Synchrotron. The [pi][sup 0] transverse mass spectrum has been analyzed in terms of a thermal model with hydrodynamic expansion. The high accuracy and large kinematic coverage of the measurement allow one to limit previously noted ambiguities in the extracted freeze-out parameters. The results are shown to be sensitive to the shape of the velocity distribution at freeze-out. [copyright] [ital 1999] [ital The American Physical Society ]
https://doi.org/10.1103/PhysRevLett.83.926

Similar Records

Title: Azimuthal anisotropy of photon and charged particle emissionin 208Pb + 208Pb collisions at 158 $$\cdot A$$ GeV/c

Abstract

Citation Formats

Collective Flow Observed in Relativistic Nuclear Collisions journal, April 1984

Collective flow in Heavy-Ion Collisions journal, December 1997

The Energy Dependence of Flow in Ni Induced Collisions from 400 A to 1970 A MeV journal, March 1997

Evidence for collective expansion in light-particle emission following Au+Au collisions at 100, 150 and 250 A·MeV journal, April 1995

Azimuthally anisotropic emission of pions in symmetric heavy-ion collisions journal, July 1993

Observation of Anisotropic Event Shapes and Transverse Flow in Ultrarelativistic Au + Au Collisions journal, November 1994

Proton, deuteron, and triton emission at target rapidity in Au+Au collisions at 1 0 . 2 0 A GeV: Spectra and directed flow journal, March 1998

Azimuthal anisotropy in S + Au reactions at 200 A GeV journal, June 1997

Elliptic emission of K+ and π+ in 158 A·GeV Pb + Pb collisions journal, December 1999

Stopping and collective effects at SPS energies journal, December 1996

Elliptic Flow in A u + A u Collisions at √ s NN = 130 GeV journal, January 2001

Pseudorapidity and Centrality Dependence of the Collective Flow of Charged Particles in A u + A u Collisions at s N N = 130 G e V journal, November 2002

Disappearance of Elliptic Flow: A New Probe for the Nuclear Equation of State journal, September 1998

Kaon Flow as a Probe of the Kaon Potential in Nuclear Medium journal, January 1995

Elliptic flow and Hanbury-Brown–Twiss correlations in noncentral nuclear collisions journal, May 1999

Anisotropy as a signature of transverse collective flow journal, July 1992

Centrality dependence of multiplicity, transverse energy, and elliptic flow from hydrodynamics journal, December 2001

Anisotropic transverse flow and the quark-hadron phase transition journal, October 2000

Elliptical Flow: A Signature for Early Pressure in Ultrarelativistic Nucleus-Nucleus Collisions journal, March 1997

Highly Sensitive Centrality Dependence of Elliptic Flow: A Novel Signature of the Phase Transition in QCD journal, March 1999

The physics of the centrality dependence of elliptic flow journal, February 2000

Determination of azimuthal anisotropy of neutral pions from the measured anisotropy of photons in ultra-relativistic nuclear collisions journal, September 2000

Flow with photon multiplicity detector: Past and future journal, April 2003

Search for disoriented chiral condensates in 158 AGeV Pb+Pb collisions journal, February 1998

Development of a double metal, AC-coupled silicon pad detector journal, April 1997

A preshower photon multiplicity detector for the WA98 experiment journal, March 1999

Systematics of inclusive photon production in 158·A GeV Pb induced reactions on Ni, Nb, and Pb targets journal, July 1999

Methods for analyzing anisotropic flow in relativistic nuclear collisions journal, September 1998

Directed and elliptic flow of charged pions and protons in Pb + Pb collisions at 4 0 A and 1 5 8 A GeV journal, September 2003

Flow and non-flow event anisotropies at the SPS journal, March 2003

Scaling of particle and transverse energy production in $^{208}$ Pb+ $^{208}$ Pb collisions at 158 $\cdot A$ GeV journal, January 2001

Hadronic and partonic sources of direct photons in relativistic heavy-ion collisions text, January 2015

Title: Azimuthal anisotropy of photon and charged particle emissionin ²⁰⁸Pb + ²⁰⁸Pb collisions at 158 $$\cdot A$$ GeV/c

Collective Flow Observed in Relativistic Nuclear Collisions
journal, April 1984

Collective flow in Heavy-Ion Collisions
journal, December 1997

The Energy Dependence of Flow in Ni Induced Collisions from $400 A$ to $1970 A MeV$
journal, March 1997

Evidence for collective expansion in light-particle emission following Au+Au collisions at 100, 150 and 250 A·MeV
journal, April 1995

Azimuthally anisotropic emission of pions in symmetric heavy-ion collisions
journal, July 1993

Observation of Anisotropic Event Shapes and Transverse Flow in Ultrarelativistic Au + Au Collisions
journal, November 1994

Proton, deuteron, and triton emission at target rapidity in Au+Au collisions at $10.20 A$ GeV: Spectra and directed flow
journal, March 1998

Azimuthal anisotropy in S + Au reactions at 200 A GeV
journal, June 1997

Elliptic emission of K+ and π+ in 158 A·GeV Pb + Pb collisions
journal, December 1999

Stopping and collective effects at SPS energies
journal, December 1996

Elliptic Flow in $A u + A u$ Collisions at $\sqrt s_{NN} = 130 GeV$
journal, January 2001

Pseudorapidity and Centrality Dependence of the Collective Flow of Charged Particles in $A u + A u$ Collisions at $\sqrt{s_{N N}} = 130 G e V$
journal, November 2002

Disappearance of Elliptic Flow: A New Probe for the Nuclear Equation of State
journal, September 1998

Kaon Flow as a Probe of the Kaon Potential in Nuclear Medium
journal, January 1995

Elliptic flow and Hanbury-Brown–Twiss correlations in noncentral nuclear collisions
journal, May 1999

Anisotropy as a signature of transverse collective flow
journal, July 1992

Centrality dependence of multiplicity, transverse energy, and elliptic flow from hydrodynamics
journal, December 2001

Anisotropic transverse flow and the quark-hadron phase transition
journal, October 2000

Elliptical Flow: A Signature for Early Pressure in Ultrarelativistic Nucleus-Nucleus Collisions
journal, March 1997

Highly Sensitive Centrality Dependence of Elliptic Flow: A Novel Signature of the Phase Transition in QCD
journal, March 1999

The physics of the centrality dependence of elliptic flow
journal, February 2000

Determination of azimuthal anisotropy of neutral pions from the measured anisotropy of photons in ultra-relativistic nuclear collisions
journal, September 2000

Flow with photon multiplicity detector: Past and future
journal, April 2003

Search for disoriented chiral condensates in 158 AGeV Pb+Pb collisions
journal, February 1998

Development of a double metal, AC-coupled silicon pad detector
journal, April 1997

A preshower photon multiplicity detector for the WA98 experiment
journal, March 1999

Systematics of inclusive photon production in 158·A GeV Pb induced reactions on Ni, Nb, and Pb targets
journal, July 1999

Methods for analyzing anisotropic flow in relativistic nuclear collisions
journal, September 1998

Directed and elliptic flow of charged pions and protons in $Pb + Pb$ collisions at $40 A$ and $158 A GeV$
journal, September 2003

Flow and non-flow event anisotropies at the SPS
journal, March 2003

Scaling of particle and transverse energy production in $^{208}$ Pb+ $^{208}$ Pb collisions at 158 $\cdot A$ GeV
journal, January 2001

Hadronic and partonic sources of direct photons in relativistic heavy-ion collisions
text, January 2015