Levy-stable two-pion Bose-Einstein correlations in root S-NN=200 GeV Au+Au collisions

Lévy-stable two-pion Bose-Einstein correlations in √sNN=200 GeV Au+Au collisions Lévy-stable two-pion Bose-Einstein correlations in s NN =200 GeV Au+Au collisions
  • Adare, A.
  • Aidala, C.
  • Ajitanand, N. N.
  • Akiba, Y.
  • Akimoto, R.
  • ... Kim, Yong Kyun
  • 외 448명
Citations

WEB OF SCIENCE

47
Citations

SCOPUS

75

초록

We present a detailed measurement of charged two-pion correlation functions in 0-30% centrality root= 200 GeV Au+Au collisions by the PHENIX experiment at the Relativistic Heavy Ion Collider. The data are well described by Bose-Einstein correlation functions stemming from Levy-stable source distributions. Using a fine transverse momentum binning, we extract the correlation strength parameter lambda, the Levy index of stability alpha, and the Levy length scale parameter R as a function of average transverse mass of the parr m(T). We find that the positively and the negatively charged pion pairs yield consistent results, and their correlation functions are represented, within uncertainties, by the same Levy-stable source functions. The lambda(m(T)) measurements indicate a decrease of the strength of the correlations at low m(T). The Levy length scale parameter R(m(T)) decreases with increasing m(T), following a hydrodynamically predicted type of scaling behavior. The values of the Levy index of stability a are found to be significantly lower than the Gaussian case of alpha = 2, but also significantly larger than the conjectured value that may characterize the critical point of a second-order quark-hadron phase transition.

키워드

HEAVY-ION COLLISIONSQUARK-GLUON PLASMAPARTICLE INTERFEROMETRYPION INTERFEROMETRYANOMALOUS DIFFUSIONCOULOMB CORRECTIONSHBT-INTERFEROMETRYMODEL2-PARTICLECOHERENCE
제목
Levy-stable two-pion Bose-Einstein correlations in root S-NN=200 GeV Au+Au collisions
제목 (타언어)
Lévy-stable two-pion Bose-Einstein correlations in √sNN=200 GeV Au+Au collisions Lévy-stable two-pion Bose-Einstein correlations in s NN =200 GeV Au+Au collisions
저자
Adare, A.Aidala, C.Ajitanand, N. N.Akiba, Y.Akimoto, R.Alexander, J.Alfred, M.Al-Ta'ani, H.Angerami, A.Aoki, K.Apadula, N.Aramaki, Y.Sano, M.Asano, H.Aschenauer, E. C.Atomssa, E. T.Awes, T. C.Azmoun, B.Babintsev, VBagoly, A.Bai, M.Bannier, B.Barish, K. N.Bassalleck, B.Bathe, S.Baublis, VBaumgart, S.Bazilevsky, A.Belmont, R.Berdnikov, A.Berdnikov, Y.Blau, D. S.Boer, M.Bok, J. S.Boyle, K.Brooks, M. L.Bryslawskyj, J.Buesching, H.Bumazhnov, VButsyk, S.Campbell, S.Roman, V. CanoaCastera, P.Chen, C-HChi, C. Y.Chiu, M.Choi, I. J.Choi, J. B.Choi, S.Choudhury, R. K.Chujo, T.Christiansen, P.Chvala, O.Cianciolo, VCitron, Z.Cole, B. A.Connors, M.Csanad, M.Csorgo, T.Dairaku, S.Danley, T. W.Datta, A.Daugherity, M. S.David, G.DeBlasio, K.Dehmelt, K.Denisov, A.Deshpande, A.Desmond, E. J.Dharmawardane, K., VDietzsch, O.Ding, L.Dion, A.Do, J. H.Donadelli, M.D'Orazio, L.Drapier, O.Drees, A.Drees, K. A.Durham, J. M.Durum, A.Edwards, S.Efremenko, Y., VEngelmore, T.Enokizono, A.Esumi, S.Eyser, K. 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DOI
10.1103/PhysRevC.97.064911
발행일
2018-06
유형
Article
저널명
Physical Review c
97
6
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1 ~ 22