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Nuclear-modification factor for open-heavy-flavor production at forward rapidity in Cu plus Cu collisions at root s(NN)=200 GeV
- Adare, A. (author)
- Afanasiev, S. (author)
- Aidala, C. (author)
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- Ajitanand, N. N. (author)
- Akiba, Y. (author)
- Al-Bataineh, H. (author)
- Alexander, J. (author)
- Aoki, K. (author)
- Aphecetche, L. (author)
- Armendariz, R. (author)
- Aronson, S. H. (author)
- Asai, J. (author)
- Atomssa, E. T. (author)
- Averbeck, R. (author)
- Awes, T. C. (author)
- Azmoun, B. (author)
- Babintsev, V. (author)
- Baksay, G. (author)
- Baksay, L. (author)
- Baldisseri, A. (author)
- Barish, K. N. (author)
- Barnes, P. D. (author)
- Bassalleck, B. (author)
- Bathe, S. (author)
- Batsouli, S. (author)
- Baublis, V. (author)
- Bazilevsky, A. (author)
- Belikov, S. (author)
- Bennett, R. (author)
- Berdnikov, Y. (author)
- Bickley, A. A. (author)
- Boissevain, J. G. (author)
- Borel, H. (author)
- Boyle, K. (author)
- Brooks, M. L. (author)
- Buesching, H. (author)
- Bumazhnov, V. (author)
- Bunce, G. (author)
- Butsyk, S. (author)
- Campbell, S. (author)
- Chang, B. S. (author)
- Charvet, J. -L. (author)
- Chernichenko, S. (author)
- Chi, C. Y. (author)
- Chiba, J. (author)
- Chiu, M. (author)
- Choi, I. J. (author)
- Chujo, T. (author)
- Chung, P. (author)
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- Cianciolo, V. (author)
- Cleven, C. R. (author)
- Cole, B. A. (author)
- Comets, M. P. (author)
- Constantin, P. (author)
- Csanad, M. (author)
- Csoergo, T. (author)
- Dahms, T. (author)
- Das, K. (author)
- David, G. (author)
- Deaton, M. B. (author)
- Dehmelt, K. (author)
- Delagrange, H. (author)
- Denisov, A. (author)
- d'Enterria, D. (author)
- Deshpande, A. (author)
- Desmond, E. J. (author)
- Dietzsch, O. (author)
- Dion, A. (author)
- Donadelli, M. (author)
- Drapier, O. (author)
- Drees, A. (author)
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- Dzhordzhadze, V. (author)
- Efremenko, Y. V. (author)
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- Ellinghaus, F. (author)
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- Fields, D. E. (author)
- Finger, M. (author)
- Finger, M. Jr. (author)
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- Fokin, S. L. (author)
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- Fusayasu, T. (author)
- Gadrat, S. (author)
- Garishvili, A. (author)
- Garishvili, I. (author)
- Glenn, A. (author)
- Gong, H. (author)
- Gonin, M. (author)
- Gosset, J. (author)
- Goto, Y. (author)
- de Cassagnac, R. Granier (author)
- Grau, N. (author)
- Greene, S. V. (author)
- Perdekamp, M. Grosse (author)
- Gunji, T. (author)
- Hachiya, T. (author)
- Henni, A. Hadj (author)
- Haegemann, C. (author)
- Haggerty, J. S. (author)
- Hamagaki, H. (author)
- Han, R. (author)
- Harada, H. (author)
- Hartouni, E. P. (author)
- Haruna, K. (author)
- Hayano, R. (author)
- He, X. (author)
- Heffner, M. (author)
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- Hester, T. (author)
- Hiejima, H. (author)
- Hill, J. C. (author)
- Hobbs, R. (author)
- Hohlmann, M. (author)
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- Homma, K. (author)
- Hong, B. (author)
- Horaguchi, T. (author)
- Hornback, D. (author)
- Ichihara, T. (author)
- Iinuma, H. (author)
- Imai, K. (author)
- Inaba, M. (author)
- Inoue, Y. (author)
- Isenhower, D. (author)
- Isenhower, L. (author)
- Ishihara, M. (author)
- Isobe, T. (author)
- Issah, M. (author)
- Isupov, A. (author)
- Jacak, B. V. (author)
- Jia, J. (author)
- Jin, J. (author)
- Jinnouchi, O. (author)
- Johnson, B. M. (author)
- Joo, K. S. (author)
- Jouan, D. (author)
- Kajihara, F. (author)
- Kametani, S. (author)
- Kamihara, N. (author)
- Kamin, J. (author)
- Kaneta, M. (author)
- Kang, J. H. (author)
- Kanou, H. (author)
- Kawall, D. (author)
- Kazantsev, A. V. (author)
- Khanzadeev, A. (author)
- Kikuchi, J. (author)
- Kim, D. H. (author)
- Kim, D. J. (author)
- Kim, E. (author)
- Kinney, E. (author)
- Kiss, A. (author)
- Kistenev, E. (author)
- Kiyomichi, A. (author)
- Klay, J. (author)
- Klein-Boesing, C. (author)
- Kochenda, L. (author)
- Kochetkov, V. (author)
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- Kyle, G. S. (author)
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- Lebedev, A. (author)
- Lee, D. M. (author)
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- Lee, T. (author)
- Leitch, M. J. (author)
- Leite, M. A. L. (author)
- Lenzi, B. (author)
- Li, X. (author)
- Liska, T. (author)
- Litvinenko, A. (author)
- Liu, M. X. (author)
- Love, B. (author)
- Lynch, D. (author)
- Maguire, C. F. (author)
- Makdisi, Y. I. (author)
- Malakhov, A. (author)
- Malik, M. D. (author)
- Manko, V. I. (author)
- Mao, Y. (author)
- Masek, L. (author)
- Masui, H. (author)
- Matathias, F. (author)
- McCumber, M. (author)
- McGaughey, P. L. (author)
- Miake, Y. (author)
- Mikes, P. (author)
- Miki, K. (author)
- Miller, T. E. (author)
- Milov, A. (author)
- Mioduszewski, S. (author)
- Mishra, M. (author)
- Mitchell, J. T. (author)
- Mitrovski, M. (author)
- Morreale, A. (author)
- Morrison, D. P. (author)
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- Mukhopadhyay, D. (author)
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- Nagamiya, S. (author)
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- Nagle, J. L. (author)
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- Nakagawa, I. (author)
- Nakamiya, Y. (author)
- Nakamura, T. (author)
- Nakano, K. (author)
- Newby, J. (author)
- Nguyen, M. (author)
- Norman, B. E. (author)
- Nouicer, R. (author)
- Nyanin, A. S. (author)
- O'Brien, E. (author)
- Oda, S. X. (author)
- Ogilvie, C. A. (author)
- Ohnishi, H. (author)
- Oka, M. (author)
- Okada, K. (author)
- Omiwade, O. O. (author)
- Ouchida, M. (author)
- Ozawa, K. (author)
- Pak, R. (author)
- Pal, D. (author)
- Palounek, A. P. T. (author)
- Pantuev, V. (author)
- Papavassiliou, V. (author)
- Park, J. (author)
- Park, W. J. (author)
- Pate, S. F. (author)
- Pei, H. (author)
- Peng, J. -C. (author)
- Pereira, H. (author)
- Peresedov, V. (author)
- Peressounko, D. Yu. (author)
- Pinkenburg, C. (author)
- Purschke, M. L. (author)
- Purwar, A. K. (author)
- Qu, H. (author)
- Rak, J. (author)
- Rakotozafindrabe, A. (author)
- Ravinovich, I. (author)
- Read, K. F. (author)
- Rembeczki, S. (author)
- Reuter, M. (author)
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- Roche, G. (author)
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- Rukoyatkin, P. (author)
- Rykov, V. L. (author)
- Sahlmueller, B. (author)
- Saito, N. (author)
- Sakaguchi, T. (author)
- Sakai, S. (author)
- Sakata, H. (author)
- Samsonov, V. (author)
- Sato, S. (author)
- Sawada, S. (author)
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- Semenov, V. (author)
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- Sharma, D. (author)
- Shein, I. (author)
- Shevel, A. (author)
- Shibata, T. -A. (author)
- Shigaki, K. (author)
- Shimomura, M. (author)
- Shoji, K. (author)
- Sickles, A. (author)
- Silva, C. L. (author)
- Silvermyr, D. (author)
- Silvestre, C. (author)
- Sim, K. S. (author)
- Singh, C. P. (author)
- Singh, V. (author)
- Skutnik, S. (author)
- Slunecka, M. (author)
- Soldatov, A. (author)
- Soltz, R. A. (author)
- Sondheim, W. E. (author)
- Sorensen, S. P. (author)
- Sourikova, I. V. (author)
- Staley, F. (author)
- Stankus, P. W. (author)
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- Ster, A. (author)
- Stoll, S. P. (author)
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- Taketani, A. (author)
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- Tomasek, L. (author)
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- Tram, V-N. (author)
- Tserruya, I. (author)
- Tsuchimoto, Y. (author)
- Vale, C. (author)
- Valle, H. (author)
- van Hecke, H. W. (author)
- Velkovska, J. (author)
- Vertesi, R. (author)
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- Vrba, V. (author)
- Vznuzdaev, E. (author)
- Wagner, M. (author)
- Walker, D. (author)
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- Watanabe, Y. (author)
- Wessels, J. (author)
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- Winter, D. (author)
- Woody, C. L. (author)
- Wysocki, M. (author)
- Xie, W. (author)
- Yamaguchi, Y. L. (author)
- Yanovich, A. (author)
- Yasin, Z. (author)
- Ying, J. (author)
- Yokkaichi, S. (author)
- Young, G. R. (author)
- Younus, I. (author)
- Yushmanov, I. E. (author)
- Zajc, W. A. (author)
- Zaudtke, O. (author)
- Zhang, C. (author)
- Zhou, S. (author)
- Zimanyi, J. (author)
- Zolin, L. (author)
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- (creator_code:org_t)
- 2012
- 2012
- English.
- In: Physical Review C (Nuclear Physics). - 0556-2813. ; 86:2
- Journal article (peer-reviewed)
Abstract
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- Background: Heavy-flavor production in p + p collisions is a good test of perturbative-quantum-chromodynamics (pQCD) calculations. Modification of heavy-flavor production in heavy-ion collisions relative to binary-collision scaling from p + p results, quantified with the nuclear-modification factor (R-AA), provides information on both cold-and hot-nuclear-matter effects. Midrapidity heavy-flavor R-AA measurements at the Relativistic Heavy Ion Collider have challenged parton-energy-loss models and resulted in upper limits on the viscosity-entropy ratio that are near the quantum lower bound. Such measurements have not been made in the forward-rapidity region. Purpose: Determine transverse-momentum (p(T)) spectra and the corresponding R-AA for muons from heavy-flavor meson decay in p + p and Cu + Cu collisions at root s(NN) = 200 GeV and y = 1.65. Method: Results are obtained using the semileptonic decay of heavy-flavor mesons into negative muons. The PHENIX muon-arm spectrometers measure the p(T) spectra of inclusive muon candidates. Backgrounds, primarily due to light hadrons, are determined with a Monte Carlo calculation using a set of input hadron distributions tuned to match measured-hadron distributions in the same detector and statistically subtracted. Results: The charm-production cross section in p + p collisions at root s = 200 GeV, integrated over p(T) and in the rapidity range 1.4 < y < 1.9, is found to be d(sigma e (e) over bar)/dy = 0.139 +/- 0.029 (stat)(-0.058)(+0.051) (syst) mb. This result is consistent with a perturbative fixed-order-plus-next-to-leading-log calculation within scale uncertainties and is also consistent with expectations based on the corresponding midrapidity charm-production cross section measured by PHENIX. The R-AA for heavy-flavor muons in Cu + Cu collisions is measured in three centrality bins for 1 < p(T) < 4 GeV/c. Suppression relative to binary-collision scaling (R-AA < 1) increases with centrality. Conclusions: Within experimental and theoretical uncertainties, the measured charm yield in p + p collisions is consistent with state-of-the-art pQCD calculations. Suppression in central Cu + Cu collisions suggests the presence of significant cold-nuclear-matter effects and final-state energy loss.
Subject headings
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
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- ref (subject category)
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- Adare, A.
- Afanasiev, S.
- Aidala, C.
- Ajitanand, N. N.
- Akiba, Y.
- Al-Bataineh, H.
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- Alexander, J.
- Aoki, K.
- Aphecetche, L.
- Armendariz, R.
- Aronson, S. H.
- Asai, J.
- Atomssa, E. T.
- Averbeck, R.
- Awes, T. C.
- Azmoun, B.
- Babintsev, V.
- Baksay, G.
- Baksay, L.
- Baldisseri, A.
- Barish, K. N.
- Barnes, P. D.
- Bassalleck, B.
- Bathe, S.
- Batsouli, S.
- Baublis, V.
- Bazilevsky, A.
- Belikov, S.
- Bennett, R.
- Berdnikov, Y.
- Bickley, A. A.
- Boissevain, J. G ...
- Borel, H.
- Boyle, K.
- Brooks, M. L.
- Buesching, H.
- Bumazhnov, V.
- Bunce, G.
- Butsyk, S.
- Campbell, S.
- Chang, B. S.
- Charvet, J. -L.
- Chernichenko, S.
- Chi, C. Y.
- Chiba, J.
- Chiu, M.
- Choi, I. J.
- Chujo, T.
- Chung, P.
- Churyn, A.
- Cianciolo, V.
- Cleven, C. R.
- Cole, B. A.
- Comets, M. P.
- Constantin, P.
- Csanad, M.
- Csoergo, T.
- Dahms, T.
- Das, K.
- David, G.
- Deaton, M. B.
- Dehmelt, K.
- Delagrange, H.
- Denisov, A.
- d'Enterria, D.
- Deshpande, A.
- Desmond, E. J.
- Dietzsch, O.
- Dion, A.
- Donadelli, M.
- Drapier, O.
- Drees, A.
- Dubey, A. K.
- Durum, A.
- Dzhordzhadze, V.
- Efremenko, Y. V.
- Egdemir, J.
- Ellinghaus, F.
- Emam, W. S.
- Enokizono, A.
- En'yo, H.
- Esumi, S.
- Eyser, K. O.
- Fields, D. E.
- Finger, M.
- Finger, M. Jr.
- Fleuret, F.
- Fokin, S. L.
- Fraenkel, Z.
- Frantz, J. E.
- Franz, A.
- Frawley, A. D.
- Fujiwara, K.
- Fukao, Y.
- Fusayasu, T.
- Gadrat, S.
- Garishvili, A.
- Garishvili, I.
- Glenn, A.
- Gong, H.
- Gonin, M.
- Gosset, J.
- Goto, Y.
- de Cassagnac, R. ...
- Grau, N.
- Greene, S. V.
- Perdekamp, M. Gr ...
- Gunji, T.
- Gustafsson, Hans ...
- Hachiya, T.
- Henni, A. Hadj
- Haegemann, C.
- Haggerty, J. S.
- Hamagaki, H.
- Han, R.
- Harada, H.
- Hartouni, E. P.
- Haruna, K.
- Haslum, Eva
- Hayano, R.
- He, X.
- Heffner, M.
- Hemmick, T. K.
- Hester, T.
- Hiejima, H.
- Hill, J. C.
- Hobbs, R.
- Hohlmann, M.
- Holzmann, W.
- Homma, K.
- Hong, B.
- Horaguchi, T.
- Hornback, D.
- Ichihara, T.
- Iinuma, H.
- Imai, K.
- Inaba, M.
- Inoue, Y.
- Isenhower, D.
- Isenhower, L.
- Ishihara, M.
- Isobe, T.
- Issah, M.
- Isupov, A.
- Jacak, B. V.
- Jia, J.
- Jin, J.
- Jinnouchi, O.
- Johnson, B. M.
- Joo, K. S.
- Jouan, D.
- Kajihara, F.
- Kametani, S.
- Kamihara, N.
- Kamin, J.
- Kaneta, M.
- Kang, J. H.
- Kanou, H.
- Kawall, D.
- Kazantsev, A. V.
- Khanzadeev, A.
- Kikuchi, J.
- Kim, D. H.
- Kim, D. J.
- Kim, E.
- Kinney, E.
- Kiss, A.
- Kistenev, E.
- Kiyomichi, A.
- Klay, J.
- Klein-Boesing, C ...
- Kochenda, L.
- Kochetkov, V.
- Komkov, B.
- Konno, M.
- Kotchetkov, D.
- Kozlov, A.
- Kral, A.
- Kravitz, A.
- Kubart, J.
- Kunde, G. J.
- Kurihara, N.
- Kurita, K.
- Kweon, M. J.
- Kwon, Y.
- Kyle, G. S.
- Lacey, R.
- Lai, Y. S.
- Lajoie, J. G.
- Lebedev, A.
- Lee, D. M.
- Lee, M. K.
- Lee, T.
- Leitch, M. J.
- Leite, M. A. L.
- Lenzi, B.
- Li, X.
- Liska, T.
- Litvinenko, A.
- Liu, M. X.
- Love, B.
- Lynch, D.
- Maguire, C. F.
- Makdisi, Y. I.
- Malakhov, A.
- Malik, M. D.
- Manko, V. I.
- Mao, Y.
- Masek, L.
- Masui, H.
- Matathias, F.
- McCumber, M.
- McGaughey, P. L.
- Miake, Y.
- Mikes, P.
- Miki, K.
- Miller, T. E.
- Milov, A.
- Mioduszewski, S.
- Mishra, M.
- Mitchell, J. T.
- Mitrovski, M.
- Morreale, A.
- Morrison, D. P.
- Moukhanova, T. V ...
- Mukhopadhyay, D.
- Murata, J.
- Nagamiya, S.
- Nagata, Y.
- Nagle, J. L.
- Naglis, M.
- Nakagawa, I.
- Nakamiya, Y.
- Nakamura, T.
- Nakano, K.
- Newby, J.
- Nguyen, M.
- Norman, B. E.
- Nouicer, R.
- Nyanin, A. S.
- O'Brien, E.
- Oda, S. X.
- Ogilvie, C. A.
- Ohnishi, H.
- Oka, M.
- Okada, K.
- Omiwade, O. O.
- Oskarsson, Ander ...
- Ouchida, M.
- Ozawa, K.
- Pak, R.
- Pal, D.
- Palounek, A. P. ...
- Pantuev, V.
- Papavassiliou, V ...
- Park, J.
- Park, W. J.
- Pate, S. F.
- Pei, H.
- Peng, J. -C.
- Pereira, H.
- Peresedov, V.
- Peressounko, D. ...
- Pinkenburg, C.
- Purschke, M. L.
- Purwar, A. K.
- Qu, H.
- Rak, J.
- Rakotozafindrabe ...
- Ravinovich, I.
- Read, K. F.
- Rembeczki, S.
- Reuter, M.
- Reygers, K.
- Riabov, V.
- Riabov, Y.
- Roche, G.
- Romana, A.
- Rosati, M.
- Rosendahl, Sarah
- Rosnet, P.
- Rukoyatkin, P.
- Rykov, V. L.
- Sahlmueller, B.
- Saito, N.
- Sakaguchi, T.
- Sakai, S.
- Sakata, H.
- Samsonov, V.
- Sato, S.
- Sawada, S.
- Seele, J.
- Seidl, R.
- Semenov, V.
- Seto, R.
- Sharma, D.
- Shein, I.
- Shevel, A.
- Shibata, T. -A.
- Shigaki, K.
- Shimomura, M.
- Shoji, K.
- Sickles, A.
- Silva, C. L.
- Silvermyr, D.
- Silvestre, C.
- Sim, K. S.
- Singh, C. P.
- Singh, V.
- Skutnik, S.
- Slunecka, M.
- Soldatov, A.
- Soltz, R. A.
- Sondheim, W. E.
- Sorensen, S. P.
- Sourikova, I. V.
- Staley, F.
- Stankus, P. W.
- Stenlund, Evert
- Stepanov, M.
- Ster, A.
- Stoll, S. P.
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- Sziklai, J.
- Tabaru, T.
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- Yushmanov, I. E.
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