Abstract
A novel type of quantum mechanical correlations, hypothesized in the 1990’s, the (squeezed) back-to-back correlations, was predicted to appear in heavy ion collisions among particle-antiparticle (eg. π+π−, K + K −, \(p\bar p\)) pairs, if their in-medium masses are different from the vacuum values. Observation of this correlation would provide new insight in the freeze-out dynamics of the created matter. The latest status of the PHENIX measurement, comprising the first measurement of this new effect, is presented.
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References
G. Goldhaber, S. Goldhaber, W. Y. Lee, and A. Pais, Phys. Rev. 120, 300 (1960); R. Brown Hanbury and R. Q. Twiss, Nature 178, 1046 (1956).
I. V. Andreev, M. Plümer, and R. M. Weiner, Phys. Rev. Lett. 67, 3475 (1991).
M. Asakawa, T. Csörgö, and M. Gyulassy, Phys. Rev. Lett. 83, 4013 (1999).
T. Csörgő and S. S. Padula, Braz. J. Phys. 37, 949 (2007).
P. K. Panda, T. Csörgö, Y. Hama, G. Krein, and S. S. Padula, Phys. Lett. B 512, 49 (2001).
D. M. Dudek and S. S. Padula, Phys. Rev. C 82, 034905 (2010).
T. Csörgő, R. Vértesi, J. Sziklai, Phys. Rev. Lett. 105, 182301 (2010); R. Vértesi, T. Csörgö, and J. Sziklai, Nucl. Phys. A 830, 631 (2009).
K. Adcox et al. (PHENIX Collab.), Nucl. Instrum. Methods Phys. Res. A 499, 469 (2003).
T. Csörgő, S. Hegyi, and W. A. Zajc, Eur. Phys. J. C 36, 67 (2004).
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Talk at the 2009 Workshop on Particle Correlations and Femtoscopy, CERN, Geneva, October 12–17, 2009.
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for the PHENIX Collaboration
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Nagy, M.I. Search for particle-antiparticle back-to-back correlations in √s NN GeV Au + Au collisions. Phys. Part. Nuclei Lett. 8, 1033–1036 (2011). https://doi.org/10.1134/S1547477111090251
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DOI: https://doi.org/10.1134/S1547477111090251