Indirect Observation of an In-Medium η′ Mass Reduction in √SNN=200 GeV Au + Au Collisions

被引：55
|
作者：
Csoergo, T. [1 ,2 ]
Vertesi, R. [2 ]
Sziklai, J. [2 ]
机构：
[1] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA
[2] MTA KFKI RMKI, H-1525 Budapest, Hungary
来源：
PHYSICAL REVIEW LETTERS | 2010年 / 105卷 / 18期
关键词：
HEAVY-ION COLLISIONS; BOSE-EINSTEIN CORRELATIONS; MODEL; RESTORATION;
D O I：
10.1103/PhysRevLett.105.182301
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
PHENIX Collaboration and STAR Collaboration data on the intercept parameter of the two-pion Bose-Einstein correlation functions in root(S)(NN) = 200 GeV Au + Au collisions are analyzed in terms of different models of hadronic multiplicities. To describe this combined PHENIX and STAR data set, an in-medium eta' mass reduction of at least 200 MeV is needed, at the 99.9% confidence level in the considered model class. Such a significant eta' mass modification may indicate the restoration of the U-A(1) symmetry in a hot and dense hadronic matter and the return of the 9th "prodigal'' Goldstone boson.
引用
下载
收藏
页数：4
相关论文
共 50 条
  • [1] In-medium reduction of the η′ mass √sNN=200 GeV Au+Au collisions
    Vertesi, Robert
    Csoergo, Tamas
    Sziklai, Janos
    HCBM 2010 - INTERNATIONAL WORKSHOP ON HOT AND COLD BARYONIC MATTER, 2011, 13
  • [2] Significant in-medium η′ mass reduction in √sNN=200 GeV Au+Au collisions
    Vertesi, R.
    Csoergo, T.
    Sziklai, J.
    NUCLEAR PHYSICS A, 2009, 830 : 631C - 632C
  • [3] Significant in-medium η′ mass reduction in √sNN=200 GeV Au+Au collisions at the BNL Relativistic Heavy Ion Collider
    Vertesi, R.
    Csoergo, T.
    Sziklai, J.
    PHYSICAL REVIEW C, 2011, 83 (05):
  • [4] Observation of hypertritons in Au plus Au collisions at √SNN=200 GeV
    Chen, J. H.
    NUCLEAR PHYSICS A, 2009, 830 : 761C - 764C
  • [5] Direct observation of dijets in central Au plus Au collisions at √sNN=200 GeV
    Adams, J.
    Aggarwal, M. M.
    Ahammed, Z.
    Amonett, J.
    Anderson, B. D.
    Anderson, M.
    Arkhipkin, D.
    Averichev, G. S.
    Bai, Y.
    Balewski, J.
    Barannikova, O.
    Barnby, L. S.
    Baudot, J.
    Bekele, S.
    Belaga, V. V.
    Bellingeri-Laurikainen, A.
    Bellwied, R.
    Bezverkhny, B. I.
    Bhardwaj, S.
    Bhasin, A.
    Bhati, A. K.
    Bichsel, H.
    Bielcik, J.
    Bielcikova, J.
    Bland, L. C.
    Blyth, C. O.
    Blyth, S-L.
    Bonner, B. E.
    Botje, M.
    Bouchet, J.
    Brandin, A. V.
    Bravar, A.
    Bystersky, M.
    Cadman, R. V.
    Cai, X. Z.
    Caines, H.
    Sanchez, M. Calderon de la Barca
    Castillo, J.
    Catu, O.
    Cebra, D.
    Chajecki, Z.
    Chaloupka, P.
    Chattopadhyay, S.
    Chen, H. F.
    Chen, J. H.
    Chen, Y.
    Cheng, J.
    Cherney, M.
    Chikanian, A.
    Choi, H. A.
    PHYSICAL REVIEW LETTERS, 2006, 97 (16)
  • [6] Pion interferometry at in Au+Au collisions at √SNN=200 GeV
    Noriega, ML
    NUKLEONIKA, 2004, 49 : S67 - S70
  • [7] φ meson production in Au-Au collisions at √sNN=200 GeV
    Muniruzzaman, M
    JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 2004, 30 (01) : S571 - S576
  • [8] Dielectron production in Au plus Au collisions at √sNN=200 GeV
    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.
    Asano, H.
    Aschenauer, E. C.
    Atomssa, E. T.
    Averbeck, R.
    Awes, T. C.
    Azmoun, B.
    Babintsev, V.
    Bai, M.
    Bandara, N. S.
    Bannier, B.
    Barish, K. N.
    Bassalleck, B.
    Bathe, S.
    Baublis, V.
    Baumgart, S.
    Bazilevsky, A.
    Beaumier, M.
    Beckman, S.
    Belmont, R.
    Berdnikov, A.
    Berdnikov, Y.
    Blau, D. S.
    Bok, J. S.
    Boyle, K.
    Brooks, M. L.
    Bryslawskyj, J.
    Buesching, H.
    Bumazhnov, V.
    Butsyk, S.
    Campbell, S.
    Castera, P.
    Chen, C. -H.
    Chi, C. Y.
    Chiu, M.
    Choi, I. J.
    Choi, J. B.
    Choi, S.
    Choudhury, R. K.
    PHYSICAL REVIEW C, 2016, 93 (01)
  • [9] φ meson production in Au+Au collisions at √sNN=200 GeV
    Mukhopadhyay, D
    JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 2005, 31 (04) : S187 - S193
  • [10] ΛΛ Correlation Function in Au plus Au Collisions at √sNN=200 GeV
    Adamczyk, L.
    Adkins, J. K.
    Agakishiev, G.
    Aggarwal, M. M.
    Ahammed, Z.
    Alekseev, I.
    Alford, J.
    Anson, C. D.
    Aparin, A.
    Arkhipkin, D.
    Aschenauer, E. C.
    Averichev, G. S.
    Banerjee, A.
    Beavis, D. R.
    Bellwied, R.
    Bhasin, A.
    Bhati, A. K.
    Bhattarai, P.
    Bichsel, H.
    Bielcik, J.
    Bielcikova, J.
    Bland, L. C.
    Bordyuzhin, I. G.
    Borowski, W.
    Bouchet, J.
    Brandin, A. V.
    Brovko, S. G.
    Bueltmann, S.
    Bunzarov, I.
    Burton, T. P.
    Butterworth, J.
    Caines, H.
    Sanchez, M. Calderon de la Barca
    Campbell, J. M.
    Cebra, D.
    Cendejas, R.
    Cervantes, M. C.
    Chaloupka, P.
    Chang, Z.
    Chattopadhyay, S.
    Chen, H. F.
    Chen, J. H.
    Chen, L.
    Cheng, J.
    Cherney, M.
    Chikanian, A.
    Christie, W.
    Chwastowski, J.
    Codrington, M. J. M.
    Contin, G.
    PHYSICAL REVIEW LETTERS, 2015, 114 (02)
12345