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Article: Has the QCD critical point been signaled by observations at the BNL relativistic heavy ion collider?

Lacey, Roy A / Ajitanand, N N / Alexander, J M / Chung, P / Holzmann, W G / Issah, M / Taranenko, A / Danielewicz, P / Stöcker, Horst

Physical review letters

2007 Volume 98, Issue 9, Page(s) 92301

Abstract: The shear viscosity to entropy ratio (eta/s) is estimated for the hot and dense QCD matter created in Au+Au collisions at BNL Relativistic Heavy Ion Collider (square root[s_{NN}]=200 GeV). A very low value is found; eta/s approximately 0.1, which is ... ...

Abstract	The shear viscosity to entropy ratio (eta/s) is estimated for the hot and dense QCD matter created in Au+Au collisions at BNL Relativistic Heavy Ion Collider (square root[s_{NN}]=200 GeV). A very low value is found; eta/s approximately 0.1, which is close to the conjectured lower bound (1/4pi). It is argued that such a low value is indicative of thermodynamic trajectories for the decaying matter which lie close to the QCD critical end point.
Language	English
Publishing date	2007-03-02
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.98.092301
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Article ; Online: Energy loss for heavy quarks in relation to light partons: is radiative energy loss for heavy quarks anomalous?

Lacey, Roy A / Wei, R / Ajitanand, N N / Alexander, J M / Gong, X / Jia, J / Mawi, A / Mohapatra, S / Reynolds, D / Salnikov, S / Taranenko, A

Physical review letters

2009 Volume 103, Issue 14, Page(s) 142302

Abstract: The scaling properties of jet-suppression measurements are compared for nonphotonic electrons (e+/-) and neutral pions (pi(0)) in Au+Au collisions at sqrt[S(NN)]=200 GeV. For a broad range of transverse momenta and collision centralities, the comparison ... ...

Abstract	The scaling properties of jet-suppression measurements are compared for nonphotonic electrons (e+/-) and neutral pions (pi(0)) in Au+Au collisions at sqrt[S(NN)]=200 GeV. For a broad range of transverse momenta and collision centralities, the comparison is consistent with jet quenching dominated by radiative energy loss for both heavy and light partons. Less quenching is indicated for heavy quarks via e+/-; this gives an independent estimate of the transport coefficient q that agrees with its magnitude obtained from quenching of light partons via pi(0)'s.
Language	English
Publishing date	2009-10-02
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.103.142302
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Article ; Online: Measurement of Direct-Photon Cross Section and Double-Helicity Asymmetry at sqrt[s]=510 GeV in p[over →]+p[over →] Collisions.

Abdulameer, N J / Acharya, U / Adare, A / Aidala, C / Ajitanand, N N / Akiba, Y / Akimoto, R / Alfred, M / Apadula, N / Aramaki, Y / Asano, H / Atomssa, E T / Awes, T C / Azmoun, B / Babintsev, V / Bai, M / Bandara, N S / Bannier, B / Barish, K N /

Bathe, S / Bazilevsky, A / Beaumier, M / Beckman, S / Belmont, R / Berdnikov, A / Berdnikov, Y / Bichon, L / Black, D / Blankenship, B / Bok, J S / Borisov, V / Boyle, K / Brooks, M L / Bryslawskyj, J / Buesching, H / Bumazhnov, V / Campbell, S / Canoa Roman, V / Chen, C-H / Chiu, M / Chi, C Y / Choi, I J / Choi, J B / Chujo, T / Citron, Z / Connors, M / Corliss, R / Corrales Morales, Y / Csanád, M / Csörgő, T / Datta, A / Daugherity, M S / David, G / Dean, C T / DeBlasio, K / Dehmelt, K / Denisov, A / Deshpande, A / Desmond, E J / Ding, L / Dion, A / Doomra, V / Do, J H / Drees, A / Drees, K A / Durham, J M / Durum, A / En'yo, H / Enokizono, A / Esha, R / Fadem, B / Fan, W / Feege, N / Fields, D E / Finger, M / Firak, D / Fitzgerald, D / Fokin, S L / Frantz, J E / Franz, A / Frawley, A D / Gallus, P / Gal, C / Garg, P / Ge, H / Giles, M / Giordano, F / Glenn, A / Goto, Y / Grau, N / Greene, S V / Grosse Perdekamp, M / Gunji, T / Guragain, H / Gu, Y / Hachiya, T / Haggerty, J S / Hahn, K I / Hamagaki, H / Hanks, J / Han, S Y / Harvey, M / Hasegawa, S / Hemmick, T K / He, X / Hill, J C / Hodges, A / Hollis, R S / Homma, K / Hong, B / Hoshino, T / Huang, J / Ikeda, Y / Imai, K / Imazu, Y / Inaba, M / Iordanova, A / Isenhower, D / Ivanishchev, D / Jacak, B V / Jeon, S J / Jezghani, M / Jiang, X / Ji, Z / Johnson, B M / Joo, E / Joo, K S / Jouan, D / Jumper, D S / Kang, J H / Kang, J S / Kawall, D / Kazantsev, A V / Key, J A / Khachatryan, V / Khanzadeev, A / Khatiwada, A / Kihara, K / Kim, C / Kim, D H / Kim, D J / Kim, E-J / Kim, H-J / Kim, M / Kim, T / Kim, Y K / Kincses, D / Kingan, A / Kistenev, E / Klatsky, J / Kleinjan, D / Kline, P / Koblesky, T / Kofarago, M / Koster, J / Kotov, D / Kovacs, L / Kurgyis, B / Kurita, K / Kurosawa, M / Kwon, Y / Lajoie, J G / Larionova, D / Lebedev, A / Lee, K B / Lee, S H / Leitch, M J / Leitgab, M / Lewis, N A / Lim, S H / Liu, M X / Li, X / Loomis, D A / Lynch, D / Lökös, S / Majoros, T / Makdisi, Y I / Makek, M / Manion, A / Manko, V I / Mannel, E / McCumber, M / McGaughey, P L / McGlinchey, D / McKinney, C / Meles, A / Mendoza, M / Meredith, B / Miake, Y / Mignerey, A C / Miller, A J / Milov, A / Mishra, D K / Mitchell, J T / Mitrankova, M / Mitrankov, Iu / Miyasaka, S / Mizuno, S / Mondal, M M / Montuenga, P / Moon, T / Morrison, D P / Moukhanova, T V / Muhammad, A / Mulilo, B / Murakami, T / Murata, J / Mwai, A / Nagamiya, S / Nagle, J L / Nagy, M I / Nakagawa, I / Nakagomi, H / Nakano, K / Nattrass, C / Nelson, S / Netrakanti, P K / Nihashi, M / Niida, T / Nouicer, R / Novitzky, N / Nukazuka, G / Nyanin, A S / O'Brien, E / Ogilvie, C A / Oh, J / Orjuela Koop, J D / Orosz, M / Osborn, J D / Oskarsson, A / Ozawa, K / Pak, R / Pantuev, V / Papavassiliou, V / Park, J S / Park, S / Patel, L / Patel, M / Pate, S F / Peng, J-C / Peng, W / Perepelitsa, D V / Perera, G D N / Peressounko, D Yu / PerezLara, C E / Perry, J / Petti, R / Pinkenburg, C / Pinson, R / Pisani, R P / Potekhin, M / Pun, A / Purschke, M L / Radzevich, P V / Rak, J / Ramasubramanian, N / Ravinovich, I / Read, K F / Reynolds, D / Riabov, V / Riabov, Y / Richford, D / Riveli, N / Roach, D / Rolnick, S D / Rosati, M / Rowan, Z / Rubin, J G / Runchey, J / Saito, N / Sakaguchi, T / Sako, H / Samsonov, V / Sarsour, M / Sato, S / Sawada, S / Schaefer, B / Schmoll, B K / Sedgwick, K / Seele, J / Seidl, R / Sen, A / Seto, R / Sett, P / Sexton, A / Sharma, D / Shein, I / Shibata, M / Shibata, T-A / Shigaki, K / Shimomura, M / Shi, Z / Shukla, P / Sickles, A / Silva, C L / Silvermyr, D / Singh, B K / Singh, C P / Singh, V / Slunečka, M / Smith, K L / Soltz, R A / Sondheim, W E / Sorensen, S P / Sourikova, I V / Stankus, P W / Stepanov, M / Stoll, S P / Sugitate, T / Sukhanov, A / Sumita, T / Sun, J / Sun, Z / Sziklai, J / Takahama, R / Takahara, A / Taketani, A / Tanida, K / Tannenbaum, M J / Tarafdar, S / Taranenko, A / Timilsina, A / Todoroki, T / Tomášek, M / Torii, H / Towell, M / Towell, R / Towell, R S / Tserruya, I / Ueda, Y / Ujvari, B / van Hecke, H W / Vargyas, M / Velkovska, J / Virius, M / Vrba, V / Vznuzdaev, E / Wang, X R / Wang, Z / Watanabe, D / Watanabe, Y / Watanabe, Y S / Wei, F / Whitaker, S / Wolin, S / Wong, C P / Woody, C L / Wysocki, M / Xia, B / Xue, L / Yalcin, S / Yamaguchi, Y L / Yanovich, A / Yoon, I / Younus, I / Yushmanov, I E / Zajc, W A / Zelenski, A / Zou, L

Physical review letters

2023 Volume 130, Issue 25, Page(s) 251901

Abstract: We present measurements of the cross section and double-helicity asymmetry A_{LL} of direct-photon production in p[over →]+p[over →] collisions at sqrt[s]=510 GeV. The measurements have been performed at midrapidity (|η|<0.25) with the PHENIX detector ... ...

Abstract	We present measurements of the cross section and double-helicity asymmetry A_{LL} of direct-photon production in p[over →]+p[over →] collisions at sqrt[s]=510 GeV. The measurements have been performed at midrapidity (\|η\|<0.25) with the PHENIX detector at the Relativistic Heavy Ion Collider. At relativistic energies, direct photons are dominantly produced from the initial quark-gluon hard scattering and do not interact via the strong force at leading order. Therefore, at sqrt[s]=510 GeV, where leading-order-effects dominate, these measurements provide clean and direct access to the gluon helicity in the polarized proton in the gluon-momentum-fraction range 0.02<x<0.08, with direct sensitivity to the sign of the gluon contribution.<br />
MeSH term(s)	Photons ; Food ; Motion
Language	English
Publishing date	2023-07-07
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.130.251901
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Article ; Online: Erratum: Evolution of π^{0} Suppression in Au+Au Collisions from sqrt[s_{NN}]=39 to 200 GeV [Phys. Rev. Lett. 109, 152301 (2012)].

Adare, A / Afanasiev, S / Aidala, C / Ajitanand, N N / Akiba, Y / Akimoto, R / Al-Ta'ani, H / Alexander, J / Angerami, A / Aoki, K / Apadula, N / Aramaki, Y / Asano, H / Aschenauer, E C / Atomssa, E T / Awes, T C / Azmoun, B / Babintsev, V / Bai, M /

Bannier, B / Barish, K N / Bassalleck, B / Bathe, S / Baublis, V / Baumgart, S / Bazilevsky, A / Belmont, R / Berdnikov, A / Berdnikov, Y / Bing, X / Blau, D S / Boyle, K / Brooks, M L / 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 / Christiansen, P / Chujo, T / Chvala, O / Cianciolo, V / Citron, Z / Cole, B A / Connors, M / Csanád, M / Csörgő, T / Dairaku, S / Datta, A / Daugherity, M S / David, G / Denisov, A / Deshpande, A / Desmond, E J / Dharmawardane, K V / Dietzsch, O / Ding, L / Dion, A / Donadelli, M / Drapier, O / Drees, A / Drees, K A / Durham, J M / Durum, A / D'Orazio, L / Edwards, S / Efremenko, Y V / Engelmore, T / Enokizono, A / Esumi, S / Eyser, K O / Fadem, B / Fields, D E / Finger, M / Fleuret, F / Fokin, S L / Frantz, J E / Franz, A / Frawley, A D / Fukao, Y / Fusayasu, T / Gainey, K / Gal, C / Garishvili, A / Garishvili, I / Glenn, A / Gong, X / Gonin, M / Goto, Y / Granier de Cassagnac, R / Grau, N / Greene, S V / Grosse Perdekamp, M / Gunji, T / Guo, L / Gustafsson, H-Å / Hachiya, T / Haggerty, J S / Hahn, K I / Hamagaki, H / Hanks, J / Hashimoto, K / Haslum, E / Hayano, R / He, X / Hemmick, T K / Hester, T / Hill, J C / Hollis, R S / Homma, K / Hong, B / Horaguchi, T / Hori, Y / Huang, S / Ichihara, T / Iinuma, H / Ikeda, Y / Imrek, J / Inaba, M / Iordanova, A / Isenhower, D / Issah, M / Isupov, A / Ivanischev, D / Jacak, B V / Javani, M / Jia, J / Jiang, X / Johnson, B M / Joo, K S / Jouan, D / Kamin, J / Kaneti, S / Kang, B H / Kang, J H / Kang, J S / Kapustinsky, J / Karatsu, K / Kasai, M / Kawall, D / Kazantsev, A V / Kempel, T / Khanzadeev, A / Kijima, K M / Kim, B I / Kim, C / Kim, D J / Kim, E-J / Kim, H J / Kim, K-B / Kim, Y-J / Kim, Y K / Kinney, E / Kiss, Á / Kistenev, E / Klatsky, J / Kleinjan, D / Kline, P / Komatsu, Y / Komkov, B / Koster, J / Kotchetkov, D / Kotov, D / Král, A / Krizek, F / Kunde, G J / Kurita, K / Kurosawa, M / Kwon, Y / Kyle, G S / Lacey, R / Lai, Y S / Lajoie, J G / Lebedev, A / Lee, B / Lee, D M / Lee, J / Lee, K B / Lee, K S / Lee, S H / Lee, S R / Leitch, M J / Leite, M A L / Leitgab, M / Lewis, B / Lim, S H / Linden Levy, L A / Litvinenko, A / Liu, M X / Love, B / Maguire, C F / Makdisi, Y I / Makek, M / Malakhov, A / Manion, A / Manko, V I / Mannel, E / Masumoto, S / McCumber, M / McGaughey, P L / McGlinchey, D / McKinney, C / Mendoza, M / Meredith, B / Miake, Y / Mibe, T / Mignerey, A C / Milov, A / Mishra, D K / Mitchell, J T / Miyachi, Y / Miyasaka, S / Mohanty, A K / Moon, H J / Morrison, D P / Motschwiller, S / Moukhanova, T V / Murakami, T / Murata, J / Nagae, T / Nagamiya, S / Nagle, J L / Nagy, M I / Nakagawa, I / Nakamiya, Y / Nakamura, K R / Nakamura, T / Nakano, K / Nattrass, C / Nederlof, A / Nihashi, M / Nouicer, R / Novitzky, N / Nyanin, A S / O'Brien, E / Ogilvie, C A / Okada, K / Oskarsson, A / Ouchida, M / Ozawa, K / Pak, R / Pantuev, V / Papavassiliou, V / Park, B H / Park, I H / Park, S K / Pate, S F / Patel, L / Pei, H / Peng, J-C / Pereira, H / Peresedov, V / Peressounko, D Yu / Petti, R / Pinkenburg, C / Pisani, R P / Proissl, M / Purschke, M L / Qu, H / Rak, J / Ravinovich, I / Read, K F / Reynolds, R / Riabov, V / Riabov, Y / Richardson, E / Roach, D / Roche, G / Rolnick, S D / Rosati, M / Rukoyatkin, P / Sahlmueller, B / Saito, N / Sakaguchi, T / Samsonov, V / Sano, M / Sarsour, M / Sawada, S / Sedgwick, K / Seidl, R / Sen, A / Seto, R / Sharma, D / Shein, I / Shibata, T-A / Shigaki, K / Shimomura, M / Shoji, K / Shukla, P / Sickles, A / Silva, C L / Silvermyr, D / Sim, K S / Singh, B K / Singh, C P / Singh, V / Slunečka, M / Soltz, R A / Sondheim, W E / Sorensen, S P / Soumya, M / Sourikova, I V / Stankus, P W / Stenlund, E / Stepanov, M / Ster, A / Stoll, S P / Sugitate, T / Sukhanov, A / Sun, J / Sziklai, J / Takagui, E M / Takahara, A / Taketani, A / Tanaka, Y / Taneja, S / Tanida, K / Tannenbaum, M J / Tarafdar, S / Taranenko, A / Tennant, E / Themann, H / Todoroki, T / Tomášek, L / Tomášek, M / Torii, H / Towell, R S / Tserruya, I / Tsuchimoto, Y / Tsuji, T / Vale, C / van Hecke, H W / Vargyas, M / Vazquez-Zambrano, E / Veicht, A / Velkovska, J / Vértesi, R / Virius, M / Vossen, A / Vrba, V / Vznuzdaev, E / Wang, X R / Watanabe, D / Watanabe, K / Watanabe, Y / Watanabe, Y S / Wei, F / Wei, R / White, S N / Winter, D / Wolin, S / Woody, C L / Wysocki, M / Yamaguchi, Y L / Yang, R / Yanovich, A / Ying, J / Yokkaichi, S / You, Z / Younus, I / Yushmanov, I E / Zajc, W A / Zelenski, A / Zolin, L

Physical review letters

2020 Volume 125, Issue 4, Page(s) 49901

Abstract: This corrects the article DOI: 10.1103/PhysRevLett.109.152301. ...

Abstract	This corrects the article DOI: 10.1103/PhysRevLett.109.152301.
Language	English
Publishing date	2020-08-14
Publishing country	United States
Document type	Published Erratum
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.125.049901
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Article: Comparison of source images for protons, pi-'s, and lambda's in 6A GeV Au+Au collisions.

Chung, P / Ajitanand, N N / Alexander, J M / Anderson, M / Best, D / Brady, F P / Case, T / Caskey, W / Cebra, D / Chance, J L / Cole, B / Crowe, K / Das, A C / Draper, J E / Gilkes, M L / Gushue, S / Heffner, M / Hirsch, A S / Hjort, E L /

Holzmann, W / Huo, L / Issah, M / Justice, M / Kaplan, M / Keane, D / Kintner, J C / Klay, J / Krofcheck, D / Lacey, R A / Lauret, J / Lisa, M A / Liu, H / Liu, Y M / McGrath, R / Milosevich, Z / Odyniec, G / Olson, D L / Panitkin, S / Porile, N T / Rai, G / Ritter, H G / Romero, J L / Scharenberg, R / Srivastava, B / Stone, N T B / Symons, T J M / Taranenko, A / Whitfield, J / Witt, R / Wood, L / Zhang, W N / Brown, D / Pratt, S / Wang, F / Danielewicz, P

Physical review letters

2003 Volume 91, Issue 16, Page(s) 162301

Abstract: Source images are extracted from two-particle correlations constructed from strange and nonstrange hadrons produced in 6A GeV Au+Au collisions. Very different source images result from pp vs p Lambda vs pi(-)pi(-) correlations. Scaling by transverse mass ...

Abstract	Source images are extracted from two-particle correlations constructed from strange and nonstrange hadrons produced in 6A GeV Au+Au collisions. Very different source images result from pp vs p Lambda vs pi(-)pi(-) correlations. Scaling by transverse mass can describe the apparent source size ratio for p/pi(-) but not for Lambda/pi(-) or Lambda/p. These observations suggest important differences in the space-time emission histories for protons, pions, and neutral strange baryons produced in the same events.
Language	English
Publishing date	2003-10-17
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.91.162301
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Article: Near-threshold production of the multistrange Xi- hyperon.

Holzmann, W / Huo, L / Issah, M / Justice, M / Kaplan, M / Keane, D / Kintner, J C / Klay, J / Krofcheck, D / Lacey, R A / Lauret, J / Lisa, M A / Liu, H / Liu, Y M / Milan, J / McGrath, R / Milosevich, Z / Odyniec, G / Olson, D L / Panitkin, S / Porile, N T / Rai, G / Ritter, H G / Romero, J L / Scharenberg, R / Srivastava, B / Stone, N T B / Symons, T J M / Taranenko, A / Whitfield, J / Wienold, T / Witt, R / Wood, L / Zhang, W N / Oeschler, H

Physical review letters

2003 Volume 91, Issue 20, Page(s) 202301

Abstract: The yield for the multistrange Xi(-) hyperon has been measured in 6A GeV Au+Au collisions via reconstruction of its decay products pi(-) and Lambda, the latter also being reconstructed from its daughter tracks of pi(-) and p. The measurement is rather ... ...

Abstract	The yield for the multistrange Xi(-) hyperon has been measured in 6A GeV Au+Au collisions via reconstruction of its decay products pi(-) and Lambda, the latter also being reconstructed from its daughter tracks of pi(-) and p. The measurement is rather close to the threshold for Xi(-) production and therefore provides an important test of model predictions. The measured yield for Xi(-) and Lambda are compared for several centralities. In central collisions the Xi(-) yield is found to be in excellent agreement with statistical and transport model predictions, suggesting that multistrange hadron production approaches chemical equilibrium in high baryon density nuclear matter.
Language	English
Publishing date	2003-11-14
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.91.202301
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Longitudinal flow of protons from (2-8)A GeV central Au+Au collisions.

Klay, J L / Ajitanand, N N / Alexander, J M / Anderson, M G / Best, D / Brady, F P / Case, T / Caskey, W / Cebra, D / Chance, J L / Chung, P / Cole, B / Crowe, K / Das, A C / Draper, J E / Gilkes, M L / Gushue, S / Heffner, M / Hirsch, A S /

Hjort, E L / Huo, L / Justice, M / Kaplan, M / Keane, D / Kintner, J C / Krofcheck, D / Lacey, R A / Lauret, J / Law, C / Lisa, M A / Liu, H / Liu, Y M / McGrath, R / Milosevich, Z / Odyniec, G / Olson, D L / Panitkin, S Y / Pinkenburg, C / Porile, N T / Rai, G / Ritter, H G / Romero, J L / Scharenberg, R / Schroeder, L / Srivastava, B / Stone, N T B / Symons, T J M / Wang, S / Wells, R / Whitfield, J / Wienold, T / Witt, R / Wood, L / Zhang, W N

Physical review letters

2002 Volume 88, Issue 10, Page(s) 102301

Abstract: Rapidity distributions of protons from central 197Au+197Au collisions measured by the E895 Collaboration in the energy range from (2-8)A GeV at the Brookhaven AGS are presented. Longitudinal flow parameters derived using a thermal model including ... ...

Abstract	Rapidity distributions of protons from central 197Au+197Au collisions measured by the E895 Collaboration in the energy range from (2-8)A GeV at the Brookhaven AGS are presented. Longitudinal flow parameters derived using a thermal model including collective longitudinal expansion are extracted from these distributions. The results show an approximately linear increase in the longitudinal flow velocity, <betagamma>(L), as a function of the logarithm of beam energy.
Language	English
Publishing date	2002-03-11
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.88.102301
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Article: Directed flow of lambda hyperons in (2-6 )A GeV Au+Au collisions.

Chung, P / Ajitanand, N N / Alexander, J M / Anderson, M / Best, D / Brady, F P / Case, T / Caskey, W / Cebra, D / Chance, J L / Cole, B / Crowe, K / Das, A / Draper, J E / Gilkes, M L / Gushue, S / Heffner, M / Hirsch, A S / Hjort, E L /

Huo, L / Justice, M / Kaplan, M / Keane, D / Kintner, J C / Klay, J / Krofcheck, D / Lacey, R A / Lauret, J / Lisa, M A / Liu, H / Liu, Y M / McGrath, R / Milosevich, Z / Odyniec, G / Olson, D L / Panitkin, S Y / Pinkenburg, C / Porile, N T / Rai, G / Ritter, H G / Romero, J L / Scharenberg, R / Schroeder, L / Srivastava, B / Stone, N T / Symons, T J / Wienold, T / Witt, R / Whitfield, J / Wood, L / Zhang, W N

Physical review letters

2001 Volume 86, Issue 12, Page(s) 2533–2536

Abstract: Directed flow measurements for Lambda hyperons are presented and compared to those for protons produced in the same Au+Au collisions (2A, 4A, and 6A GeV; b<5-6 fm). The measurements indicate that Lambda hyperons flow consistently in the same direction ... ...

Abstract	Directed flow measurements for Lambda hyperons are presented and compared to those for protons produced in the same Au+Au collisions (2A, 4A, and 6A GeV; b<5-6 fm). The measurements indicate that Lambda hyperons flow consistently in the same direction but with smaller magnitudes. A strong positive flow [for Lambdas] has been predicted in calculations which include the influence of the Lambda-nucleon potential. The experimental flow ratio Lambda/p is in qualitative agreement with expectations (approximately 2/3) from the quark counting rule at 2A GeV but is found to decrease with increasing beam energy.
Language	English
Publishing date	2001-03-19
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.86.2533
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Model-independent source imaging using two-pion correlations in (2 to 8)a GeV Au+Au collisions.

Panitkin, S Y / Ajitanand, N N / Alexander, J / Anderson, M / Best, D / Brady, F P / Case, T / Caskey, W / Cebra, D / Chance, J / Chung, P / Cole, B / Crowe, K / Das, A / Draper, J / Gilkes, M / Gushue, S / Heffner, M / Hirsch, A /

Hjort, E / Huo, L / Justice, M / Kaplan, M / Keane, D / Kintner, J / Klay, J / Krofcheck, D / Lacey, R / Lauret, J / Lisa, M A / Liu, H / Liu, Y M / McGrath, R / Milosevich, Z / Odyniec, G / Olson, D / Pinkenburg, C / Porile, N / Rai, G / Ritter, H G / Romero, J / Scharenberg, R / Schroeder, L S / Srivastava, B / Stone, N T / Symons, T J / Wang, S / Wells, R / Whitfield, J / Wienold, T / Witt, R / Wood, L / Yang, X / Zhang, W N / Zhang, Y / Brown, D A / Danielewicz, P

Physical review letters

2001 Volume 87, Issue 11, Page(s) 112304

Abstract: We report a particle source imaging analysis based on two-pion correlations in high multiplicity Au+Au collisions at beam energies between 2A and 8A GeV. We apply the imaging technique introduced by Brown and Danielewicz, which allows a model-independent ...

Abstract	We report a particle source imaging analysis based on two-pion correlations in high multiplicity Au+Au collisions at beam energies between 2A and 8A GeV. We apply the imaging technique introduced by Brown and Danielewicz, which allows a model-independent extraction of source functions with useful accuracy out to relative pion separations of about 20 fm. The extracted source functions have Gaussian shapes. Values of source functions at zero separation are almost constant across the energy range under study. Imaging results are found to be consistent with conventional source parameters obtained from a multidimensional Hanburg-Brown-Twiss analysis.
Language	English
Publishing date	2001-09-10
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.87.112304
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Low-p_{T} e^{+}e^{-} Pair Production in Au+Au Collisions at sqrt[s_{NN}]=200 GeV and U+U Collisions at sqrt[s_{NN}]=193 GeV at STAR.

Adam, J / Adamczyk, L / Adams, J R / Adkins, J K / Agakishiev, G / Aggarwal, M M / Ahammed, Z / Ajitanand, N N / Alekseev, I / Anderson, D M / Aoyama, R / Aparin, A / Arkhipkin, D / Aschenauer, E C / Ashraf, M U / Atetalla, F / Attri, A / Averichev, G S / Bai, X /

Bairathi, V / Barish, K / Bassill, A J / Behera, A / Bellwied, R / Bhasin, A / Bhati, A K / Bielcik, J / Bielcikova, J / Bland, L C / Bordyuzhin, I G / Brandenburg, J D / Brandin, A V / Brown, D / Bryslawskyj, J / Bunzarov, I / Butterworth, J / Caines, H / Calderón de la Barca Sánchez, M / Campbell, J M / Cebra, D / Chakaberia, I / Chaloupka, P / Chang, F-H / Chang, Z / Chankova-Bunzarova, N / Chatterjee, A / Chattopadhyay, S / Chen, J H / Chen, X / Cheng, J / Cherney, M / Christie, W / Contin, G / Crawford, H J / Das, S / Dedovich, T G / Deppner, I M / Derevschikov, A A / Didenko, L / Dilks, C / Dong, X / Drachenberg, J L / Dunlop, J C / Efimov, L G / Elsey, N / Engelage, J / Eppley, G / Esha, R / Esumi, S / Evdokimov, O / Ewigleben, J / Eyser, O / Fatemi, R / Fazio, S / Federic, P / Federicova, P / Fedorisin, J / Filip, P / Finch, E / Fisyak, Y / Flores, C E / Fulek, L / Gagliardi, C A / Galatyuk, T / Geurts, F / Gibson, A / Grosnick, D / Gunarathne, D S / Guo, Y / Gupta, A / Guryn, W / Hamad, A I / Hamed, A / Harlenderova, A / Harris, J W / He, L / Heppelmann, S / Herrmann, N / Hirsch, A / Holub, L / Horvat, S / Huang, X / Huang, B / Huang, S L / Huang, H Z / Huang, T / Humanic, T J / Huo, P / Igo, G / Jacobs, W W / Jentsch, A / Jia, J / Jiang, K / Jowzaee, S / Judd, E G / Kabana, S / Kalinkin, D / Kang, K / Kapukchyan, D / Kauder, K / Ke, H W / Keane, D / Kechechyan, A / Kikoła, D P / Kim, C / Kinghorn, T A / Kisel, I / Kisiel, A / Klein, S R / Kochenda, L / Kosarzewski, L K / Kraishan, A F / Kramarik, L / Krauth, L / Kravtsov, P / Krueger, K / Kulathunga, N / Kumar, S / Kumar, L / Kvapil, J / Kwasizur, J H / Lacey, R / Landgraf, J M / Lauret, J / Lebedev, A / Lednicky, R / Lee, J H / Li, X / Li, C / Li, W / Li, Y / Liang, Y / Lidrych, J / Lin, T / Lipiec, A / Lisa, M A / Liu, F / Liu, P / Liu, H / Liu, Y / Ljubicic, T / Llope, W J / Lomnitz, M / Longacre, R S / Luo, X / Luo, S / Ma, G L / Ma, Y G / Ma, L / Ma, R / Magdy, N / Majka, R / Mallick, D / Margetis, S / Markert, C / Matis, H S / Matonoha, O / Mayes, D / Mazer, J A / Meehan, K / Mei, J C / Minaev, N G / Mioduszewski, S / Mishra, D / Mohanty, B / Mondal, M M / Mooney, I / Morozov, D A / Nasim, Md / Negrete, J D / Nelson, J M / Nemes, D B / Nie, M / Nigmatkulov, G / Niida, T / Nogach, L V / Nonaka, T / Nurushev, S B / Odyniec, G / Ogawa, A / Oh, K / Oh, S / Okorokov, V A / Olvitt, D / Page, B S / Pak, R / Panebratsev, Y / Pawlik, B / Pei, H / Perkins, C / Pluta, J / Porter, J / Posik, M / Pruthi, N K / Przybycien, M / Putschke, J / Quintero, A / Radhakrishnan, S K / Ramachandran, S / Ray, R L / Reed, R / Ritter, H G / Roberts, J B / Rogachevskiy, O V / Romero, J L / Ruan, L / Rusnak, J / Rusnakova, O / Sahoo, N R / Sahu, P K / Salur, S / Sandweiss, J / Schambach, J / Schmah, A M / Schmidke, W B / Schmitz, N / Schweid, B R / Seck, F / Seger, J / Sergeeva, M / Seto, R / Seyboth, P / Shah, N / Shahaliev, E / Shanmuganathan, P V / Shao, M / Shen, W Q / Shen, F / Shi, S S / Shou, Q Y / Sichtermann, E P / Siejka, S / Sikora, R / Simko, M / Singha, S / Smirnov, N / Smirnov, D / Solyst, W / Sorensen, P / Spinka, H M / Srivastava, B / Stanislaus, T D S / Stewart, D J / Strikhanov, M / Stringfellow, B / Suaide, A A P / Sugiura, T / Sumbera, M / Summa, B / Sun, Y / Sun, X / Sun, X M / Surrow, B / Svirida, D N / Szymanski, P / Tang, Z / Tang, A H / Taranenko, A / Tarnowsky, T / Thomas, J H / Timmins, A R / Tlusty, D / Todoroki, T / Tokarev, M / Tomkiel, C A / Trentalange, S / Tribble, R E / Tribedy, P / Tripathy, S K / Tsai, O D / Tu, B / Ullrich, T / Underwood, D G / Upsal, I / Van Buren, G / Vanek, J / Vasiliev, A N / Vassiliev, I / Videbæk, F / Vokal, S / Voloshin, S A / Vossen, A / Wang, G / Wang, Y / Wang, F / Webb, J C / Wen, L / Westfall, G D / Wieman, H / Wissink, S W / Witt, R / Wu, Y / Xiao, Z G / Xie, G / Xie, W / Xu, Q H / Xu, Z / Xu, J / Xu, Y F / Xu, N / Yang, S / Yang, C / Yang, Q / Yang, Y / Ye, Z / Yi, L / Yip, K / Yoo, I-K / Yu, N / Zbroszczyk, H / Zha, W / Zhang, Z / Zhang, L / Zhang, Y / Zhang, X P / Zhang, J / Zhang, S / Zhao, J / Zhong, C / Zhou, C / Zhou, L / Zhu, Z / Zhu, X / Zyzak, M

Physical review letters

2018 Volume 121, Issue 13, Page(s) 132301

Abstract: We report first measurements of e^{+}e^{-} pair production in the mass region 0.4

Abstract	We report first measurements of e^{+}e^{-} pair production in the mass region 0.4<M_{ee}<2.6 GeV/c^{2} at low transverse momentum (p_{T}<0.15 GeV/c) in noncentral Au+Au collisions at sqrt[s_{NN}]=200 GeV and U+U collisions at sqrt[s_{NN}]=193 GeV. Significant enhancement factors, expressed as ratios of data over known hadronic contributions, are observed in the 40%-80% centrality of these collisions. The excess yields peak distinctly at low p_{T} with a width (sqrt[⟨p_{T}^{2}⟩]) between 40 and 60 MeV/c. The absolute cross section of the excess depends weakly on centrality, while those from a theoretical model calculation incorporating an in-medium broadened ρ spectral function and radiation from a quark gluon plasma or hadronic cocktail contributions increase dramatically with an increasing number of participant nucleons. Model calculations of photon-photon interactions generated by the initial projectile and target nuclei describe the observed excess yields but fail to reproduce the p_{T}^{2} distributions.<br />
Language	English
Publishing date	2018-10-09
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.121.132301
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