Semihard Scattering Unraveled from Collective Dynamics by Two-Pion Azimuthal Correlations in 158A GeV/c Pb + Au Collisions

G. Agakichiev; H. Appelshäuser; R. Baur; J. Bielcikova; P. Braun-Munzinger; A. Cherlin; A. Drees; S. I. Esumi; K. Filimonov; Z. Fraenkel; Ch Fuchs; P. Glässel; G. Hering; P. Huovinen; B. Lenkeit; A. Marín; F. Messer; M. Messer; J. Milosevic; D. Miśkowiec; O. Nix; Yu Panebrattsev; V. Petráček; A. Pfeiffer; J. Rak; I. Ravinovich; S. Razin; P. Rehak; H. Sako; N. Saveljic; W. Schmitz; S. Shimansky; E. Socol; H. J. Specht; J. Stachel; H. Tilsner; I. Tserruya; C. Voigt; S. Voloshin; C. Weber; J. P. Wessels; J. P. Wurm; V. Yurevich

Semihard Scattering Unraveled from Collective Dynamics by Two-Pion Azimuthal Correlations in 158A GeV/c Pb + Au Collisions

G. Agakichiev
, H. Appelshäuser
, R. Baur
, J. Bielcikova
, P. Braun-Munzinger
, A. Cherlin
, A. Drees
, S. I. Esumi
, K. Filimonov
, Z. Fraenkel
, Ch Fuchs
, P. Glässel
, G. Hering
, P. Huovinen
, B. Lenkeit
, A. Marín
, F. Messer
, M. Messer
, J. Milosevic
, D. Miśkowiec

O. Nix, Yu Panebrattsev, V. Petráček, A. Pfeiffer, J. Rak, I. Ravinovich, S. Razin, P. Rehak, H. Sako, N. Saveljic, W. Schmitz, S. Shimansky, E. Socol, H. J. Specht, J. Stachel, H. Tilsner, I. Tserruya, C. Voigt, S. Voloshin, C. Weber, J. P. Wessels, J. P. Wurm, V. Yurevich

Physics and Astronomy

Stony Brook University

GSI Helmholtz Centre for Heavy Ion Research
Heidelberg University
Max Planck Institute for Nuclear Physics
Weizmann Institute of Science
University of Minnesota Twin Cities
Stony Brook University
Joint Institute for Nuclear Research
Brookhaven National Laboratory

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

64 Scopus citations

Abstract

The observation of semihard two-particle azimuthal correlations embedded in a collective flow was discussed. A medium partonic scattering affecting both parts of a dijet independently was observed using the broadening of the back-to-back correlation. The absence of the broadening of the closed angle correlation supported the view that these pions originated from fragmentation of the same parton. No sign of the suppression of the back-to-back correlations were observed although they were broadened in central collisions.

Original language	English
Article number	032301
Pages (from-to)	323011-323015
Number of pages	5
Journal	Physical Review Letters
Volume	92
Issue number	3
State	Published - Jan 23 2004

Cite this

Agakichiev, G., Appelshäuser, H., Baur, R., Bielcikova, J., Braun-Munzinger, P., Cherlin, A., Drees, A., Esumi, S. I., Filimonov, K., Fraenkel, Z., Fuchs, C., Glässel, P., Hering, G., Huovinen, P., Lenkeit, B., Marín, A., Messer, F., Messer, M., Milosevic, J., ... Yurevich, V. (2004). Semihard Scattering Unraveled from Collective Dynamics by Two-Pion Azimuthal Correlations in 158A GeV/c Pb + Au Collisions. Physical Review Letters, 92(3), 323011-323015. Article 032301.

@article{d41583b62d7e489fb4dcf8c600b82bdf,

title = "Semihard Scattering Unraveled from Collective Dynamics by Two-Pion Azimuthal Correlations in 158A GeV/c Pb + Au Collisions",

abstract = "The observation of semihard two-particle azimuthal correlations embedded in a collective flow was discussed. A medium partonic scattering affecting both parts of a dijet independently was observed using the broadening of the back-to-back correlation. The absence of the broadening of the closed angle correlation supported the view that these pions originated from fragmentation of the same parton. No sign of the suppression of the back-to-back correlations were observed although they were broadened in central collisions.",

author = "G. Agakichiev and H. Appelsh{\"a}user and R. Baur and J. Bielcikova and P. Braun-Munzinger and A. Cherlin and A. Drees and Esumi, \{S. I.\} and K. Filimonov and Z. Fraenkel and Ch Fuchs and P. Gl{\"a}ssel and G. Hering and P. Huovinen and B. Lenkeit and A. Mar{\'i}n and F. Messer and M. Messer and J. Milosevic and D. Mi{\'s}kowiec and O. Nix and Yu Panebrattsev and V. Petr{\'a}{\v c}ek and A. Pfeiffer and J. Rak and I. Ravinovich and S. Razin and P. Rehak and H. Sako and N. Saveljic and W. Schmitz and S. Shimansky and E. Socol and Specht, \{H. J.\} and J. Stachel and H. Tilsner and I. Tserruya and C. Voigt and S. Voloshin and C. Weber and Wessels, \{J. P.\} and Wurm, \{J. P.\} and V. Yurevich",

year = "2004",

month = jan,

day = "23",

language = "English",

volume = "92",

pages = "323011--323015",

journal = "Physical Review Letters",

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Agakichiev, G, Appelshäuser, H, Baur, R, Bielcikova, J, Braun-Munzinger, P, Cherlin, A, Drees, A, Esumi, SI, Filimonov, K, Fraenkel, Z, Fuchs, C, Glässel, P, Hering, G, Huovinen, P, Lenkeit, B, Marín, A, Messer, F, Messer, M, Milosevic, J, Miśkowiec, D, Nix, O, Panebrattsev, Y, Petráček, V, Pfeiffer, A, Rak, J, Ravinovich, I, Razin, S, Rehak, P, Sako, H, Saveljic, N, Schmitz, W, Shimansky, S, Socol, E, Specht, HJ, Stachel, J, Tilsner, H, Tserruya, I, Voigt, C, Voloshin, S, Weber, C, Wessels, JP, Wurm, JP & Yurevich, V 2004, 'Semihard Scattering Unraveled from Collective Dynamics by Two-Pion Azimuthal Correlations in 158A GeV/c Pb + Au Collisions', Physical Review Letters, vol. 92, no. 3, 032301, pp. 323011-323015.

TY - JOUR

T1 - Semihard Scattering Unraveled from Collective Dynamics by Two-Pion Azimuthal Correlations in 158A GeV/c Pb + Au Collisions

AU - Agakichiev, G.

AU - Appelshäuser, H.

AU - Baur, R.

AU - Bielcikova, J.

AU - Braun-Munzinger, P.

AU - Cherlin, A.

AU - Drees, A.

AU - Esumi, S. I.

AU - Filimonov, K.

AU - Fraenkel, Z.

AU - Fuchs, Ch

AU - Glässel, P.

AU - Hering, G.

AU - Huovinen, P.

AU - Lenkeit, B.

AU - Marín, A.

AU - Messer, F.

AU - Messer, M.

AU - Milosevic, J.

AU - Miśkowiec, D.

AU - Nix, O.

AU - Panebrattsev, Yu

AU - Petráček, V.

AU - Pfeiffer, A.

AU - Rak, J.

AU - Ravinovich, I.

AU - Razin, S.

AU - Rehak, P.

AU - Sako, H.

AU - Saveljic, N.

AU - Schmitz, W.

AU - Shimansky, S.

AU - Socol, E.

AU - Specht, H. J.

AU - Stachel, J.

AU - Tilsner, H.

AU - Tserruya, I.

AU - Voigt, C.

AU - Voloshin, S.

AU - Weber, C.

AU - Wessels, J. P.

AU - Wurm, J. P.

AU - Yurevich, V.

PY - 2004/1/23

Y1 - 2004/1/23

N2 - The observation of semihard two-particle azimuthal correlations embedded in a collective flow was discussed. A medium partonic scattering affecting both parts of a dijet independently was observed using the broadening of the back-to-back correlation. The absence of the broadening of the closed angle correlation supported the view that these pions originated from fragmentation of the same parton. No sign of the suppression of the back-to-back correlations were observed although they were broadened in central collisions.

AB - The observation of semihard two-particle azimuthal correlations embedded in a collective flow was discussed. A medium partonic scattering affecting both parts of a dijet independently was observed using the broadening of the back-to-back correlation. The absence of the broadening of the closed angle correlation supported the view that these pions originated from fragmentation of the same parton. No sign of the suppression of the back-to-back correlations were observed although they were broadened in central collisions.

UR - https://www.scopus.com/pages/publications/3843099004

M3 - Article

SN - 0031-9007

VL - 92

SP - 323011

EP - 323015

JO - Physical Review Letters

JF - Physical Review Letters

IS - 3

M1 - 032301

ER -

Semihard Scattering Unraveled from Collective Dynamics by Two-Pion Azimuthal Correlations in 158A GeV/c Pb + Au Collisions

Abstract

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