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Azimuthal correlations of electrons from heavy-flavor decay with hadrons in p plus p and Au plus Au collisions at root s(NN)=200 GeV

Adare, A.; Afanasiev, S.; Aidala, C.; Ajitanand, N. N.; Akiba, Y.; Al-Bataineh, H.; Alexander, J.; Aoki, K.; Aphecetche, L. and Aramaki, Y., et al. (2011) In Physical Review C (Nuclear Physics) 83(4).
Abstract
Measurements of electrons from the decay of open-heavy-flavor mesons have shown that the yields are suppressed in Au+Au collisions compared to expectations from binary-scaled p+p collisions. These measurements indicate that charm and bottom quarks interact with the hot dense matter produced in heavy-ion collisions much more than expected. Here we extend these studies to two-particle correlations where one particle is an electron from the decay of a heavy-flavor meson and the other is a charged hadron from either the decay of the heavy meson or from jet fragmentation. These measurements provide more detailed information about the interactions between heavy quarks and the matter, such as whether the modification of the away-side-jet shape... (More)
Measurements of electrons from the decay of open-heavy-flavor mesons have shown that the yields are suppressed in Au+Au collisions compared to expectations from binary-scaled p+p collisions. These measurements indicate that charm and bottom quarks interact with the hot dense matter produced in heavy-ion collisions much more than expected. Here we extend these studies to two-particle correlations where one particle is an electron from the decay of a heavy-flavor meson and the other is a charged hadron from either the decay of the heavy meson or from jet fragmentation. These measurements provide more detailed information about the interactions between heavy quarks and the matter, such as whether the modification of the away-side-jet shape seen in hadron-hadron correlations is present when the trigger particle is from heavy-meson decay and whether the overall level of away-side-jet suppression is consistent. We statistically subtract correlations of electrons arising from background sources from the inclusive electron-hadron correlations and obtain two-particle azimuthal correlations at root s(NN) = 200 GeV between electrons from heavy-flavor decay with charged hadrons in p+p and also first results in Au+Au collisions. We find the away-side-jet shape and yield to be modified in Au+Au collisions compared to p+p collisions. (Less)
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Physical Review C (Nuclear Physics)
volume
83
issue
4
publisher
American Physical Society
external identifiers
  • wos:000290161700003
  • scopus:79960913696
ISSN
0556-2813
DOI
10.1103/PhysRevC.83.044912
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English
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2011-06-29 09:39:10
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@article{7eec9ad0-ce6b-4d86-aa17-2983787bb54a,
  abstract     = {Measurements of electrons from the decay of open-heavy-flavor mesons have shown that the yields are suppressed in Au+Au collisions compared to expectations from binary-scaled p+p collisions. These measurements indicate that charm and bottom quarks interact with the hot dense matter produced in heavy-ion collisions much more than expected. Here we extend these studies to two-particle correlations where one particle is an electron from the decay of a heavy-flavor meson and the other is a charged hadron from either the decay of the heavy meson or from jet fragmentation. These measurements provide more detailed information about the interactions between heavy quarks and the matter, such as whether the modification of the away-side-jet shape seen in hadron-hadron correlations is present when the trigger particle is from heavy-meson decay and whether the overall level of away-side-jet suppression is consistent. We statistically subtract correlations of electrons arising from background sources from the inclusive electron-hadron correlations and obtain two-particle azimuthal correlations at root s(NN) = 200 GeV between electrons from heavy-flavor decay with charged hadrons in p+p and also first results in Au+Au collisions. We find the away-side-jet shape and yield to be modified in Au+Au collisions compared to p+p collisions.},
  articleno    = {044912},
  author       = {Adare, A. and Afanasiev, S. and Aidala, C. and Ajitanand, N. N. and Akiba, Y. and Al-Bataineh, H. and Alexander, J. and Aoki, K. and Aphecetche, L. and Aramaki, Y. and Asai, J. and Atomssa, E. T. and Averbeck, R. and Awes, T. C. and Azmoun, B. and Babintsev, V. and Bai, M. and Baksay, G. and Baksay, L. and Baldisseri, A. and Barish, K. N. and Barnes, P. D. and Bassalleck, B. and Basye, A. T. and Bathe, S. and Batsouli, S. and Baublis, V. and Baumann, C. and Bazilevsky, A. and Belikov, S. and Belmont, R. and Bennett, R. and Berdnikov, A. and Berdnikov, Y. and Bickley, A. A. and Boissevain, J. G. and Bok, J. S. and Borel, H. and Boyle, K. and Brooks, M. L. and Buesching, H. and Bumazhnov, V. and Bunce, G. and Butsyk, S. and Camacho, C. M. and Campbell, S. and Chang, B. S. and Chang, W. C. and Charvet, J. -L. and Chen, C. -H. and Chernichenko, S. and Chi, C. Y. and Chiu, M. and Choi, I. J. and Choudhury, R. 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V. and Kempel, T. and Khanzadeev, A. and Kijima, K. M. and Kikuchi, J. and Kim, B. I. and Kim, D. H. and Kim, D. J. and Kim, E. J. and Kim, E. and Kim, S. H. and Kim, Y. J. and Kinney, E. and Kiriluk, K. and Kiss, A. and Kistenev, E. and Klay, J. and Klein-Boesing, C. and Kochenda, L. and Komkov, B. and Konno, M. and Koster, J. and Kotchetkov, D. and Kozlov, A. and Kral, A. and Kravitz, A. and Kunde, G. J. and Kurita, K. and Kurosawa, M. and Kweon, M. J. and Kwon, Y. and Kyle, G. S. and Lacey, R. and Lai, Y. S. and Lajoie, J. G. and Layton, D. and Lebedev, A. and Lee, D. M. and Lee, J. and Lee, K. B. and Lee, K. and Lee, K. S. and Lee, T. and Leitch, M. J. and Leite, M. A. L. and Leitner, E. and Lenzi, B. and Liebing, P. and Levy, L. A. Linden and Liska, T. and Litvinenko, A. and Liu, H. and Liu, M. X. and Li, X. and Love, B. and Luechtenborg, R. and Lynch, D. and Maguire, C. F. and Makdisi, Y. I. and Malakhov, A. and Malik, M. D. and Manko, V. I. and Mannel, E. and Mao, Y. and Masek, L. and Masui, H. and Matathias, F. and McCumber, M. and McGaughey, P. L. and Means, N. and Meredith, B. and Miake, Y. and Mignerey, A. C. and Mikes, P. and Miki, K. and Milov, A. and Mishra, M. and Mitchell, J. T. and Mohanty, A. K. and Morino, Y. and Morreale, A. and Morrison, D. P. and Moukhanova, T. V. and Mukhopadhyay, D. and Murata, J. and Nagamiya, S. and Nagle, J. L. and Naglis, M. and Nagy, M. I. and Nakagawa, I. and Nakamiya, Y. and Nakamura, T. and Nakano, K. and Newby, J. and Nguyen, M. and Niita, T. and Nouicer, R. and Nyanin, A. S. and O'Brien, E. and Oda, S. X. and Ogilvie, C. A. and Okada, K. and Oka, M. and Onuki, Y. and Oskarsson, Anders and Ouchida, M. and Ozawa, K. and Pak, R. and Palounek, A. P. T. and Pantuev, V. and Papavassiliou, V. and Park, I. H. and Park, J. and Park, S. K. and Park, W. J. and Pate, S. F. and Pei, H. and Peng, J. -C. and Pereira, H. and Peresedov, V. and Peressounko, D. Yu and Pinkenburg, C. and Pisani, R. P. and Proissl, M. and Purschke, M. L. and Purwar, A. K. and Qu, H. and Rak, J. and Rakotozafindrabe, A. and Ravinovich, I. and Read, K. F. and Rembeczki, S. and Reygers, K. and Riabov, V. and Riabov, Y. and Richardson, E. and Roach, D. and Roche, G. and Rolnick, S. D. and Rosati, M. and Rosen, C. A. and Rosendahl, Sarah and Rosnet, P. and Rukoyatkin, P. and Ruzicka, P. and Rykov, V. L. and Sahlmueller, B. and Saito, N. and Sakaguchi, T. and Sakai, S. and Sakashita, K. and Samsonov, V. and Sano, S. and Sato, T. and Sawada, S. and Sedgwick, K. and Seele, J. and Seidl, R. and Semenov, A. Yu and Semenov, V. and Seto, R. and Sharma, D. and Shein, I. and Shibata, T. -A. and Shigaki, K. and Shimomura, M. and Shoji, K. and Shukla, P. and Sickles, A. and Silva, C. L. and Silvermyr, D. and Silvestre, C. and Sim, K. S. and Singh, B. K. and Singh, C. P. and Singh, V. and Slunecka, M. and Soldatov, A. and Soltz, R. A. and Sondheim, W. E. and Sorensen, S. 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L. and Yamaura, K. and Yang, R. and Yanovich, A. and Ying, J. and Yokkaichi, S. and Young, G. R. and Younus, I. and You, Z. and Yushmanov, I. E. and Zajc, W. A. and Zaudtke, O. and Zhang, C. and Zhou, S. and Zolin, L.},
  issn         = {0556-2813},
  language     = {eng},
  number       = {4},
  publisher    = {American Physical Society},
  series       = {Physical Review C (Nuclear Physics)},
  title        = {Azimuthal correlations of electrons from heavy-flavor decay with hadrons in p plus p and Au plus Au collisions at root s(NN)=200 GeV},
  url          = {http://dx.doi.org/10.1103/PhysRevC.83.044912},
  volume       = {83},
  year         = {2011},
}