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1. Thermodynamic relations and fluctuations in the Tsallis statistics

Author: Masamichi Ishihara
Subjects: Fluid Flow and Transfer Processes, Statistical Mechanics (cond-mat.stat-mech), Condensed Matter::Statistical Mechanics, FOS: Physical sciences, General Physics and Astronomy, Physics::Data Analysis, Statistics and Probability, Condensed Matter - Statistical Mechanics
Abstract: The thermodynamic relations in the Tsallis statistics were studied with physical quantities. An additive entropic variable related to the Tsallis entropy was introduced by assuming the form of the first law of the thermodynamics. The fluctuations in the Tsallis statistics were derived with physical quantities with the help of the introduced entropic variable. It was shown that the mean squares of the fluctuations of the physical quantities in the Tsallis statistics are the same as those in the conventional statistics. The mean square of the fluctuation of the Tsallis entropy and the mean square of the fluctuation of the Tsallis temperature were also derived. The mean square of the relative fluctuation of the Tsallis entropy and the mean square of the relative fluctuation of the Tsallis temperature are represented with heat capacities. It was shown that these fluctuations of the Tsallis quantities have the $q$-dependent terms in the Tsallis statistics of the entropic parameter $q$., Comment: 10 pages
Published: 2023

2. Thermodynamics of the independent harmonic oscillators with different frequencies in the Tsallis statistics in the high physical temperature approximation

Author: Masamichi Ishihara
Subjects: Condensed Matter Physics, Electronic, Optical and Magnetic Materials
Published: 2022

3. Thermodynamic quantities of independent harmonic oscillators in microcanonical and canonical ensembles in the Tsallis statistics

Author: Masamichi Ishihara
Subjects: Statistical Mechanics (cond-mat.stat-mech), Condensed Matter::Statistical Mechanics, FOS: Physical sciences, Condensed Matter Physics, Condensed Matter - Statistical Mechanics, Electronic, Optical and Magnetic Materials
Abstract: We study the energy and entropies for $N$ independent harmonic oscillators in the microcanonical and the canonical ensembles in the Tsallis classical and the Tsallis quantum statistics of entropic parameter $q$, where $N$ is the number of the oscillators and the value of $q$ is larger than one. The energy and entropies are represented with the physical temperature, and the well-known expressions are obtained for the energy and Rényi entropy. The difference between the microcanonical and the canonical ensembles is the existence of the condition for $N$ and $q$ in the canonical ensemble: $N(q-1), 11 pages
Published: 2022
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4. Three-body breakup of $^6$He and its halo structure

Author: Yuichi Ichikawa, K. Yoneda, Hiroyoshi Sakurai, T. Shinohara, T. Motobayashi, T. Shimamura, Y. Satou, T. Kobayshi, Y.L. Sun, Nori Aoi, Kazuyuki Ogata, Y. Kikuchi, Takashi Nakamura, Takuma Matsumoto, Takashi Sugimoto, Masamichi Ishihara, Kazuo Ieki, Yasuhiro Togano, Hideaki Otsu, Satoshi Takeuchi, Jenny Lee, Yosuke Kondo, Susumu Shimoura, Département de Physique Nucléaire (ex SPhN) (DPHN), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay
Subjects: Nuclear and High Energy Physics, Nuclear Theory, Halo nucleus, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 7. Clean energy, 01 natural sciences, Nuclear breakup, Nuclear physics, [formula omitted])X, 0103 physical sciences, Halo nuclei, Coulomb, Electric dipole response, Coulomb breakup, Neutron, 010306 general physics, Nuclear Experiment, Physics, 12 C( 6 He, Range (particle radiation), 208 Pb( 6 He, 010308 nuclear & particles physics, Scattering, 12C(6He, α+2n)X, Breakup, 208Pb(6He, lcsh:QC1-999, α+2n )X, Halo, Nucleon, 12C(6He, 208Pb(6He, α+2n)X, lcsh:Physics
Abstract: The Borromean halo nucleus 6He has been studied by a kinematically complete measurement of Coulomb and nuclear breakup into α + 2n on Pb and C targets at 70 MeV/nucleon. Fully quantum-mechanical four-body breakup calculations reproduce the energy and angular differential cross sections below E rel ∼ 1 MeV for both targets. The model used here reproduces the 6He ground-state properties as well as α-n and n-n scattering data and predicts an average opening angle 〈 θ n n 〉 of 68∘ between the two halo neutrons. However, the model underestimates the breakup cross sections for higher E rel , indicating a possible contribution from the inelastic breakup. Alternatively, we examine the empirically modified calculations that reproduce the energy-differential cross sections for a wide range of scattering angles for both targets. The extracted B(E1) peaks at E rel ∼ 1.4 MeV and amounts to 1.6(2) e2 fm2 for E rel ≤ 20 MeV, resulting 〈 θ n n 〉 = 56 − 10 + 9 degrees. In either interpretation, the current results show evidence of the dineutron spatial correlation in 6He.
Published: 2021

5. Measurement of jet-medium interactions via direct photon-hadron correlations in Au+Au and d+Au collisions at sNN=200 GeV

Author: Atsushi Takahara, K. A. Drees, A. V. Kazantsev, C. M. Camacho, Gary Grim, R. S. Towell, Prashant Shukla, Dmitry Blau, K. V. Dharmawardane, L. Tomášek, S. F. Pate, Ke. Nakamura, P. Mikeš, Y. Nakamiya, D. Lynch, H. Al-Bataineh, J. A. Key, J. Klatsky, P. Tarján, G. Baksay, J. B. Choi, L. Patel, I. Tserruya, S. Tarafdar, J. Hanks, S. Motschwiller, D. Ivanishchev, B. Voas, V. Papavassiliou, R. S. Hollis, C. E. Perezlara, E. P. Hartouni, V. Singh, H. Asano, T. C. Awes, E. Vazquez-Zambrano, E. J. Desmond, A. Hodges, Kyoichiro Ozawa, T. Liška, Jun Kikuchi, Z. Sun, A. Yu. Semenov, M. Rosati, D. Kawall, Yuhei Morino, A. Nederlof, T. Murakami, E. M. Takagui, Eva Haslum, K. O. Eyser, Y. Onuki, Y. Imazu, Shoichi Hasegawa, S. Choi, T. Niida, S. P. Stoll, A. Sen, V. S. Pantuev, M. Sano, A. Lebedev, A. Rakotozafindrabe, Jan Rak, R. Lacey, M. Sarsour, Mate Csanad, Tomoya Tsuji, M. Mendoza, S. N. White, L. Zou, J. G. Lajoie, Deepa Thomas, K. Tanida, J. Hamblen, M. Nihashi, M. Skolnik, S. I. Morrow, S. Baumgart, S. Bathe, R. Granier de Cassagnac, Charles Maguire, Kenjiro Miki, Bruno Lenzi, N. Crossette, R. P. Pisani, Tamás Csörgő, U. Acharya, M. McCumber, P. Garg, S. Sawada, Masamichi Ishihara, A. Glenn, P. V. Radzevich, A. Ster, Y. Fukao, B. Azmoun, Y. J. Mao, M. Kawashima, Hiromi Iinuma, T. Hester, E. Kistenev, B. Ujvari, M. Kasai, N. A. Sparks, J. Ying, J. Runchey, A. Isinhue, N. Grau, H. Qu, M. Leitgab, Shuo Han, Eunja Kim, Motoi Inaba, J. C. Hill, Minghui Liu, R. M. Wright, Sung Keun Park, C. Baumann, Zvi Hirsh Citron, S. Yokkaichi, P. Lichtenwalner, Kensuke Homma, E. Richardson, Senta Greene, P. Rosnet, K. Fujiwara, H. Obayashi, Y. Tsuchimoto, A. Berdnikov, J. Newby, Hideki Hamagaki, W. Fan, K. Aoki, M. Vargyas, G. David, T. Todoroki, Y. Iwanaga, K. Das, K. Nakano, M. Heffner, Kenneth Francis Read, N. N. Ajitanand, K. Okada, Gerd Joachim Kunde, D. Richford, S. Taneja, H. Van Hecke, K. B. Kim, J. Alexander, Y. L. Yamaguchi, Frank Ellinghaus, B. Bassalleck, K. Karatsu, K. I. Hahn, B. Sahlmueller, H. A. Gustafsson, A. Král, S. Kametani, H. En'yo, Alexander Milov, I. Nakagawa, R. Luechtenborg, A. A. Vinogradov, S. P. Whitaker, A. Caringi, M. J. Leitch, I. Shein, E. Leitner, M. Patel, N. Ramasubramanian, T. Ichihara, Y. Ikeda, Takahiro Nakamura, M. Konno, H. Pei, Y. Hori, Anne Marie Sickles, H. Themann, K. Gainey, Young-Ki Kim, T. Engelmore, N. Novitzky, O. Drapier, C. P. Singh, K. Sedgwick, J. Midori, I. Younus, V. Borisov, Peter Christiansen, J. S. Bok, B. M. Johnson, P. Kline, K. S. Lee, A. Dion, E. O'Brien, Paul Constantin, M. Grosse Perdekamp, J. Huang, Bum-Hoon Lee, E. J. Mannel, T. Rinn, J. T. Mitchell, R. Seidl, G. R. Young, I. E. Yushmanov, A. Taranenko, W. E. Sondheim, E. R. Kinney, D. P. Morrison, Vladislav Manko, S. Campbell, B. H. Kang, S. Wolin, B. Blankenship, Susumu Oda, R. Akimoto, Jiangyong Jia, Y. Goto, N. Kamihara, T. Horaguchi, Mihael Makek, X. Jiang, C. Pinkenburg, N. A. Lewis, M. K. Dayananda, Aram Kim, F. Matathias, T. W. Jones, Filip Krizek, H. J. Kim, Vladimir Samsonov, Tatsuya Chujo, K. Dehmelt, S. R. P. Mohapatra, C. Zhang, A. Durum, Dillon Scott Fitzgerald, Iu. Mitrankov, T. Kempel, V. Canoa Roman, P. Chung, S. K. Park, P. Liebing, M. Wysocki, Jen-Chieh Peng, P. Ružička, A. Kiss, Byoungchoo Park, A. Isupov, B. Bannier, K. S. Sim, Christine Nattrass, A. Garishvili, J. Imrek, Y. Gu, K. Boyle, P. A. Rukoyatkin, M. Stepanov, G. Roche, P. Steinberg, D. Kleinjan, M. S. Ryu, D. Reynolds, S. Belikov, K. S. Joo, Torsten Dahms, K. Yamaura, M. Potekhin, C. Oakley, A. Drees, Henner Buesching, R. Yang, I. V. Sourikova, C. Vale, J. Sziklai, Steve Edwards, Yu. Efremenko, D. K. Mishra, Inkyu Park, A. Meles, R. A. Soltz, Ajit Kumar Mohanty, T. A. Shibata, T. Sato, Xiong Wang, B. Love, Z. Conesa del Valle, M. Naglis, T. Majoros, K. L. Smith, Takahiro Fusayasu, J. H. Kang, Y. Miyachi, Dong Jo Kim, Alexander Malakhov, K. Imai, M. Proissl, J. S. Haggerty, S. R. Lee, C. L. Silva, D. H. Kim, Brian Cole, M. S. Daugherity, Alberica Toia, D. Isenhower, T. Moon, Viktor Riabov, Z. Ji, D. Winter, Hongfang Liu, D. E. Fields, N. Apadula, X. Gong, M. Chiu, D. Yu Peressounko, Dennis Perepelitsa, Taku Gunji, H. Gong, F. Kajihara, A. Veicht, A. Basye, A. Vossen, C. A. Ogilvie, Y. Tanaka, Jihyun Bhom, Qiao Xu, Y. J. Kwon, J. M. Durham, D. Silvermyr, Eun Joo Kim, I. Garishvili, O. Dietzsch, F. Wei, Ryugo S. Hayano, A. K. Purwar, Ferdinando Giordano, S. Butsyk, Y. Komatsu, Aaron Angerami, S. Zhou, E. T. Atomssa, Yoshifumi Ueda, J. H. Do, R. Esha, R. Petti, Kisung Lee, T. K. Hemmick, Bhawani Singh, Yasuo Miake, Y. Riabov, M. Javani, S. D. Rolnick, H. Valle, Susumu Sato, B. Mulilo, Tomofumi Nagae, J. L. Nagle, Yanjun Wu, K. Watanabe, Dipanwita Dutta, Nagahiro Saito, C. P. Wong, N. Riveli, S. Esumi, Y. S. Lai, L. A. Linden Levy, D. Sharma, C. Gal, J. S. Kang, R. Ichimiya, L. S. Zolin, S. W. Nam, W. J. Park, K. DeBlasio, Christopher Rosen, L. Kochenda, M. Issah, P. Castera, Kenta Shigaki, H. J. Moon, L. Baksay, M. Nguyen, M. Connors, W. A. Zajc, Julia Velkovska, A. Khatiwada, Y. Zhai, A. Iordanova, K. Shoji, J. Ide, J. Murata, V. Baublis, Yongsun Kim, Don McGlinchey, K. Sakashita, A. G. Litvinenko, D. Firak, Martin Purschke, C. A. Aidala, W. Peng, P. W. Stankus, B. Komkov, A. Denisov, Yuki Watanabe, V. Cianciolo, D. Kotov, L. Guo, Alexei Khanzadeev, Agneta Oskarsson, D. Kincses, Shinichi Masumoto, A. Yanovich, L. Bichon, E. Stenlund, D. Kotchetkov, S. Huang, A. S. Nyanin, M. Larionova, Animesh Datta, Sergey Fokin, C. Y. Chi, Y. Berdnikov, M. Moskowitz, S. S.E. Rosendahl, Rachid Nouicer, Tsutomu Mibe, M. A. L. Leite, G. Bunce, J.-G. Park, A. N. Zelenski, Y. Watanabe, S. H. Lee, Z. Fraenkel, N. Cronin, C. Silvestre, Yasutada Akiba, C. McKinney, M. Mishra, S. Nagamiya, R. K. Choudhury, D. Hornback, D. Jouan, Vaclav Vrba, Klaus Johannes Reygers, Astrid Morreale, Rui Wei, M. Kurosawa, S. H. Lim, S. Solano, T. V. Moukhanova, R. Belmont, B. Meredith, D. Larionova, Marisilvia Donadelli, J. S. Kapustinsky, A. Adare, V. Babintsev, B. Lewis, V. Bumazhnov, D. Black, M. Tomášek, John Wood, J. P. Wessels, J. Seele, G. S. Kyle, Alice Mignerey, L. D'Orazio, S. Miyasaka, A. Franz, M. Ouchida, S. Hayashi, N. Means, J. Jin, Byung-Sik Hong, A. Bazilevsky, H. A. Torii, B. Kurgyis, Toru Sugitate, Pawan Kumar Netrakanti, X. Sun, D. M. Lee, A. Kozlov, R. Seto, K. Kiriluk, François Fleuret, Takao Sakaguchi, R. Tanabe, Jason Kamin, B. Fadem, A. D. Frawley, X. He, J. Sun, Y. Aramaki, V. Peresedov, Robert Vertesi, Barbara Jacak, Rushan Han, Wesley James Metzger, W. Holzmann, J. Koster, Maya Hachiya Shimomura, Vardan Khachatryan, Y. I. Makdisi, H. Masui, A. A. Bickley, C. L. Woody, A. Mwai, Sándor Lökös, K. N. Barish, S. Zharko, S. Sano, M. L. Brooks, M. J. Tannenbaum, E. Tennant, S. Rembeczki, S. Dairaku, M. Virius, Manabu Togawa, C. H. Chen, A. Manion, I. Ravinovich, M. Bai, E. C. Aschenauer, J. D. Osborn, Inseok Yoon, Zhiying You, R. Bennett, T. L.T. Thomas, M. Finger, J. E. Frantz, Jongmin Lee, A. Enokizono, P. K. Khandai, A. Taketani, Priyanka Sett, D. S. Jumper, Makoto Oka, K. B. Lee, S. Nelson, L. Ding, D. Roach, K. M. Kijima, A. Pun, K. Hashimoto, Xingguo Li, M. Gonin, H. Al-Ta'Ani, A. Sukhanov, K. Kurita, H. Pereira, C. O. Kim, R. Pak, S. Kaneti, S. P. Sorensen, O. Chvala, Seong H. Kim, T. Hachiya, A. Kravitz, S. V. Afanasiev, H. Sako, M. I. Nagy, D. Watanabe, Marcus Hohlmann, M. D. Malik, E. Vznuzdaev, J. Bryslawskyj, I. Danchev, Beomkyu Kim, Wei Xie, A. Deshpande, I. J. Choi, B. Xia, Tadaaki Isobe, M. Slunečka, P. L. McGaughey, Ralf Peter Averbeck, and A. Nukariya
Subjects: Quark, Physics, Photon, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Nuclear Theory, Hadron, Nuclear matter, 01 natural sciences, Nuclear physics, Deuterium, Fragmentation (mass spectrometry), 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics
Abstract: We present direct photon-hadron correlations in 200 GeV/A Au+Au, d+Au, and p+p collisions, for direct photon pT from 5–12 GeV/c, collected by the PHENIX Collaboration in the years from 2006 to 2011. We observe no significant modification of jet fragmentation in d+Au collisions, indicating that cold nuclear matter effects are small or absent. Hadrons carrying a large fraction of the quark's momentum are suppressed in Au+Au compared to p+p and d+Au. As the momentum fraction decreases, the yield of hadrons in Au+Au increases to an excess over the yield in p+p collisions. The excess is at large angles and at low hadron pT and is most pronounced for hadrons associated with lower momentum direct photons. Comparison to theoretical calculations suggests that the hadron excess arises from medium response to energy deposited by jets.
Published: 2020

6. Chiral phase transition in the linear sigma model within Hartree factorization under $$(1-q)$$ expansion and free particle approximation in the Tsallis nonextensive statistics

Author: Masamichi Ishihara
Subjects: Physics, Nuclear and High Energy Physics, Free particle, Sigma model, 010308 nuclear & particles physics, Hadron, Sigma, Absolute value, Hartree, 01 natural sciences, Pion, Factorization, 0103 physical sciences, Statistics, 010306 general physics
Abstract: We studied chiral phase transition in the linear sigma model within the Tsallis nonextensive statistics under some approximations. The statistics has two parameters: the temperature T and the entropic parameter q. The normalized q-expectation value and the physical temperature $$T_{\mathrm {ph}}$$ were employed in this study. The normalized q-expectation value was expanded as a series of the value $$(1-q)$$ , where the absolute value $$|1-q|$$ is the measure of the deviation from the BG statistics. We applied the Hartree factorization and the free particle approximation, and obtained the equations for the condensate, the sigma mass, and the pion mass. The physical temperature dependences of these quantities were obtained numerically. We found following facts. The condensate at q is smaller than that at $$q'$$ for $$q>q'$$ . The sigma mass at q is lighter than that at $$q'$$ for $$q>q'$$ at low physical temperature, and the sigma mass at q is heavier than that at $$q'$$ for $$q>q'$$ at high physical temperature. The pion mass at q is heavier than that at $$q'$$ for $$q>q'$$ . The difference between the pion masses at different values of q is small for $$T_{\mathrm {ph}}\le 200$$ MeV. In other words, the condensate and the sigma mass are affected by the Tsallis nonextensive statistics with $$|1-q| = 0.1$$ , and the pion mass is also affected by the statistics of $$|1-q|=0.1$$ except for $$T_{\mathrm {ph}}\le 200$$ MeV.
Published: 2020

7. Beam Energy and Centrality Dependence of Direct-Photon Emission from Ultrarelativistic Heavy-Ion Collisions

Author: A. Sen, V. S. Pantuev, M. Sano, M. Stepanov, Emily D. Richardson, X. He, J. Zimamyi, O. O. Omiwade, M. Harvey, S. Belikov, K. S. Joo, A. Rakotozafindrabe, J. Hamblen, K. Hasuko, Y. Aramaki, V. Peresedov, Y. Watanabe, Ajit Kumar Mohanty, T. A. Shibata, C. L. Silva, R. A. Soltz, T. Sato, C. M. Camacho, R. S. Towell, Prashant Shukla, S. F. Pate, Dmitry Blau, Y. Fukao, A. Shevel, O. Jinnouchi, H. En'yo, J. Koster, M. Grosse Perdekamp, A. Hadj Henni, T. Hester, I. Younus, Ke. Nakamura, O. Drapier, H. Al-Bataineh, E. Vazquez-Zambrano, A. Nederlof, J. Park, H. Masui, A. K. Dubey, F. Matathias, H. Asano, Florian Bauer, M. Kasai, Y. Iwanaga, Joakim Nystrand, A. Vossen, T. L. Thomas, I. E. Yushmanov, Eun-Hee Kim, P. Constantin, Beomkyu Kim, Wei Xie, M. J. Leitch, A. A. Bickley, C. L. Woody, A. Veicht, A. Mwai, Eva Haslum, B. Lenzi, A. Soldatov, D. Isenhower, A. Toia, Tamas Novak, T. Moon, Kensuke Homma, H. Pei, L. Guo, Alexei Khanzadeev, Shinichi Masumoto, E. Stenlund, J. B. Choi, H. Sakata, Min-Hye Kim, R. Vértesi, S. H. Lee, Dipak Kumar Mishra, C. Baumann, M. S. Daugherity, C. P. Singh, T. Jones, Z. Rowan, Tomoya Tsuji, J. H. Bhom, T. V. Moukhanova, M. Mendoza, Peter Christiansen, R. Ichimiya, Atsushi Takahara, L. Mašek, D. Kawall, K. Tanida, Ryugo S. Hayano, I. J. Choi, B. Xia, S. Motschwiller, D. Ivanishchev, Dennis Perepelitsa, H. Themann, S. Chernichenko, V. Papavassiliou, Z. Ji, D. Winter, D. Yu Peressounko, Y. Riabov, Y. Onuki, C. E. Perezlara, Filip Krizek, N. A. Lewis, K. A. Drees, H. Lim, B. Bassalleck, S. Takagi, J. Bryslawskyj, Kenta Shigaki, M. Boer, M. Nguyen, V. I. Kochetkov, L. Aphecetche, S. Park, J. Murata, I. Nakagawa, Aaron Angerami, V-N. Tram, N. Grau, R. J. Petti, Sándor Lökös, K. N. Barish, J. M. Burward-Hoy, P. Tarján, S. N. White, J. G. Lajoie, Deepa Thomas, Jan Rak, R. Lacey, A. V. Kazantsev, Alexander Milov, Tae-Yeon Lee, Martin Purschke, C. A. Aidala, H. J. Kim, R. Granier de Cassagnac, A. Isupov, C. Suire, A. S. Nyanin, S. Zharko, S. Sano, S. Butsyk, Vladimir Samsonov, M. Konno, Gerd Joachim Kunde, A. Dion, Johannes Peter Wessels, I. Ravinovich, J. L. Charvet, S. Afanasiev, A. Ster, N. Feege, I. Otterlund, Christine Nattrass, A. Adare, J. Klatsky, C. P. Wong, M. Connors, W. A. Zajc, V. Baublis, A. Denisov, M. Leitgab, J. Sziklai, I. Shein, V. Cianciolo, Zvi Hirsh Citron, H. Ge, Rachid Nouicer, A. N. Zelenski, M. Proissl, Young-Ki Kim, T. Engelmore, Y. Tomita, Motoi Inaba, K. Nakano, M. J. Skoby, J. Newby, G. Roche, M. Mitrovski, Takafumi Niida, J. Huang, Hiroaki Ohnishi, K. B. Lee, Brian Cole, L. Tomášek, R. M. Wright, T. E. Miller, M. Kurosawa, Sergey Fokin, Z. Sun, A. Yu. Semenov, Bum-Hoon Lee, D. E. Mihalik, Senta Greene, K. Sedgwick, M. L. Brooks, S. Yokkaichi, W. C. Smith, B. M. Johnson, Alberto Baldisseri, Mihael Makek, K. Das, J. T. Mitchell, P. Mikeš, N. Hotvedt, R. Seidl, M. K. Dayananda, Prakhar Garg, B. Bannier, R. Belmont, M. Sarsour, A. T. Basye, M. K. Lee, B. Love, Marie Germain, C. Xu, E. P. Hartouni, Y. Miyachi, K. B. Kim, W. E. Sondheim, K. Boyle, P. A. Rukoyatkin, K. S. Sim, Kei Nagashima, V. Canoa Roman, P. Chung, M. I. Nagy, A. Morreale, Z. Fraenkel, Y. Nagata, M. Bai, D. Watanabe, M. D. Malik, Vladislav Manko, Saskia Mioduszewski, H. A. Gustafsson, M. Slunečka, E. Vznuzdaev, E. C. Aschenauer, S. S. Ryu, J. S. Kang, Junji Tojo, J. Gosset, Mate Csanad, A. Berdnikov, C. Zhang, J. P. Sullivan, A. Iordanova, A. Caringi, Frank Ellinghaus, E. R. Kinney, D. P. Morrison, B. H. Kang, M. Naglis, Tomofumi Nagae, J. L. Nagle, S. Y. Fung, M. B. Deaton, Y. Tanaka, T. K. Shea, P. Rosnet, B. Meredith, V. Khachatryan, D. Hornback, B. Komkov, P. Castera, J. Imrek, V. E. Semenov, B. E. Norman, M. Holmes, P. Ružička, Raphael Noel Tieulent, W. S. Emam, A. Datta, M. Javani, B. Fadem, E. O'Brien, Y. Kwon, A. G. Litvinenko, A. Kozlov, R. Seto, A. Bagoly, Maya Hachiya Shimomura, R. S. Hollis, G. David, L. Patel, T. C. Awes, Kyoichiro Ozawa, T. Liška, K. O. Eyser, K. Fujiwara, Y. L. Yamaguchi, N. Kamihara, R. K. Choudhury, T. Murakami, Robert F. Hobbs, B. Lewis, Viktor Riabov, Jun Kikuchi, Tadaaki Isobe, B. Azmoun, Y. J. Mao, K. Haruna, T. W. Danley, J. D. Osborn, A. Taranenko, R. Yang, H. Hiejima, S. Taneja, Kazushi Miki, H. Al-Ta'Ani, A. Král, M. J. Kweon, H. Kanou, J. S. Chai, Petr Gallus, T. Majoros, L. Ding, D. Roach, K. M. Kijima, Taku Gunji, H. Gong, M. Nihashi, Tatsuya Chujo, D. Richford, Zhiying You, K. Imai, Shoji Nagamiya, John Hill, K. Hashimoto, T. Horaguchi, Brajesh K. Singh, C. Silvestre, R. Bennett, M. Kawashima, J. Seele, Yoshifumi Ueda, H. J. Moon, Norio Saito, Tsutomu Mibe, P. Liebing, M. A. L. Leite, D. Sharma, C. Vale, P. L. McGaughey, K. Karatsu, M. Patel, F. Kajihara, F. Staley, L. Baksay, V. Dzhordzhadze, I. Danchev, A. Garishvili, David D'Enterria, Gary Grim, J. H. Do, T. Tabaru, S. Batsouli, B. Kurgyis, Toru Sugitate, L. D. Isenhower, K. V. Dharmawardane, Susumu Sato, Y. I. Makdisi, M. Kaneta, Xingguo Li, B. S. Chang, Y. Le Bornec, Ahmed Al-Jamel, Marisilvia Donadelli, V. Bumazhnov, M. P. Comets, Charles Maguire, J. L. Drachenberg, S. Leckey, M. Finger, S. Tarafdar, G. Mitsuka, Y. Hori, Anne Marie Sickles, J. Jin, J. E. Frantz, Jen-Chieh Peng, K. Gainey, I. V. Sourikova, N. Novitzky, Jongmin Lee, S. Choi, J. Klay, S. I. Morrow, H. Delagrange, Y. S. Kim, Y. H. Leung, Josh Moss, E. M. Takagui, S. P. Sorensen, Dylan Walker, R. P. Pisani, Debashish Pal, Y. Nakamiya, D. Lynch, S. Sawada, J. S. Bok, D. Kotchetkov, D. Reynolds, François Fleuret, H. W. Van Hecke, Y. Tsuchimoto, T. Ichihara, M. Oka, O. Chvala, H. Iinuma, M. C. McCain, S. Hasegawa, R. Tanabe, D. Layton, I. Garishvili, Akio Kiyomichi, J. Ying, Seong H. Kim, F. Wei, Inkyu Park, M. McCumber, J. Runchey, E. Kistenev, Xiong Wang, Z. Conesa del Valle, S. Zhou, Matthew G. Reuter, Herve Borel, B. Ujvari, Nikolay Tyurin, M. N. Wagner, Susanta K. Mohapatra, J. S. Kapustinsky, Takahiro Fusayasu, G. R. Young, M. Alfred, T. Hachiya, G. Baksay, Dong Jo Kim, A. P.T. Palounek, K. Okada, P. Lichtenwalner, A. Kiss, P. Kline, K. S. Lee, S. D. Rolnick, A. Enokizono, B. Espagnon, L. Zou, H. Harada, I. D. Ojha, Alexander Malakhov, Qiao Xu, N. Kurihara, ShinIchi Esumi, A. Glenn, A. Kravitz, J. M. Heuser, W. C. Chang, Z. Yasin, Henner Buesching, J. Sun, B. Forestier, M. T. Bjorndal, D. Silvermyr, S. Baumgart, L. S. Zolin, M. Ouchida, V. Babintsev, W. J. Park, Steve Edwards, M. Tomášek, N. Means, J. Asai, Atsushi Taketani, M. Wysocki, I. Tserruya, Masamichi Ishihara, A. Sukhanov, K. Kurita, Rushan Han, M. N. Hagiwara, Christopher Rosen, S. H. Lim, H. Pereira, P. D. Barnes, H. Yu, X. Gong, Y. Morino, Yu. Efremenko, A. Yanovich, V. Singh, V. L. Rykov, T. Dahms, A. Hodges, Marcus Hohlmann, G. S. Kyle, C. O. Kim, R. Pak, N. Willis, C. Y. Chi, M. J. Tannenbaum, James Alexander, Y. Ikeda, Shingo Sakai, S. P. Stoll, L. A. Linden Levy, J. G. Boissevain, Yasutada Akiba, H. Torii, P. V. Radzevich, Hirohiko Sato, S. K. Tuli, Minghui Liu, S. Bathe, Eunja Kim, E. J. Mannel, Agneta Oskarsson, S. Dairaku, D. Kincses, T. Rinn, Y. Berdnikov, R. Averbeck, Byung-Sik Hong, C. McKinney, M. Mishra, Kazuhiro Tanaka, Vaclav Vrba, Klaus Johannes Reygers, K. Hill, O. Zaudtke, Rui Wei, R. Akimoto, B. Sahlmueller, E. J. Desmond, A. Bazilevsky, Y. J. Kim, B. K. Schmoll, M. Virius, E. T. Atomssa, M. Heffner, A. Kim, Jaehyeok Yoo, D. Mukhopadhyay, E. Tennant, S. Rembeczki, M. Gonin, C. Pinkenburg, K. Dehmelt, J. D. Orjuela Koop, S. Kametani, C. H. Chen, Kenneth Francis Read, A. Manion, Y. Cobigo, Alexandre Lebedev, J. H. Kang, D. M. Lee, D. Bucher, J. S. Haggerty, S. R. Lee, A. Romana, S. Gadrat, Y. S. Lai, K. Kiriluk, J. Chiba, Alice Mignerey, X. Jiang, L. D'Orazio, S. Miyasaka, A. Franz, G. C. Mishra, Xiao-yan Li, Hiroyuki Sako, Y. Komatsu, Takao Sakaguchi, S. W. Nam, C. Klein-Boesing, A. D. Frawley, S. Huang, S. H. Aronson, W. Holzmann, O. Dietzsch, H. Valle, M. Chiu, Dipanwita Dutta, C. A. Ogilvie, Sung Keun Park, C. Gal, Julia Velkovska, S. Kelly, M. Rosati, N. N. Ajitanand, T. K. Hemmick, J. M. Durham, Yasuo Miake, Tamás Csörgő, Takahiro Nakamura, D. McGlinchey, Susumu Oda, A. A. Vinogradov, Henrik Tydesjö, L. Kochenda, M. Issah, T. Shohjoh, A. Durum, T. Kawagishi, Jiangyong Jia, D. S. Brown, K. Yamaura, S. Wolin, D. Kleinjan, S. Campbell, Hongfang Liu, D. E. Fields, B. V. Jacak, A. K. Purwar, R. Armendariz, J. Hanks, Byoungchoo Park, N. Apadula, C. Oakley, A. Drees, J. Kubart, K. Sakashita, D. Kotov, J. Egdemir, D. S. Jumper, F. Gastineau, Jason Kamin, Y. Goto, S. S.E. Rosendahl, K. Watanabe, G. Bunce, K. Shoji, A. Churyn, D. Jouan, W. Peng, P. W. Stankus, C. R. Cleven, C. Haegemann, Y. Inoue, P. J. Kroon, T. Kempel, Dong-Hun Kim, S. Kaneti, M. G. Hur, Steven E. Skutnik, M. Togawa, T. O. S. Haseler, H. Qu, Hideki Hamagaki, W. Fan, K. Aoki, M. Vargyas, T. Todoroki, K. I. Hahn, A. Deshpande, Helsinki Institute of Physics, Laboratoire de physique subatomique et des technologies associées (SUBATECH), Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique de Clermont (LPC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), PHENIX, Université de Nantes - Faculté des Sciences et des Techniques, Université de Nantes (UN)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Clermont Auvergne (UCA)-Centre National de la Recherche Scientifique (CNRS), Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de physique subatomique et des technologies associées ( SUBATECH ), IMT Atlantique Bretagne-Pays de la Loire ( IMT Atlantique ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ) -Université de Nantes ( UN ), Laboratoire Leprince-Ringuet ( LLR ), Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -École polytechnique ( X ) -Centre National de la Recherche Scientifique ( CNRS ), Commissariat à l'énergie atomique et aux énergies alternatives ( CEA ), Institut de Physique Nucléaire d'Orsay ( IPNO ), Université Paris-Sud - Paris 11 ( UP11 ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de Physique de Clermont ( LPC ), Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Université Clermont Auvergne ( UCA ) -Centre National de la Recherche Scientifique ( CNRS ), Institut de Physique Nucléaire de Lyon ( IPNL ), Université Claude Bernard Lyon 1 ( UCBL ), and Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS )
Subjects: Photon, heavy ion: scattering, 62.4 GeV-cms, Au+Au collisions, General Physics and Astronomy, transverse momentum dependence, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 39 GeV-cms/nucleon62.4 GeV-cms, [ PHYS.NEXP ] Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment (nucl-ex), Nuclear Experiment, 39 GeV-cms/nucleon, Physics, Range (particle radiation), RHIC, Large Hadron Collider, Multiplicative function, PHENIX, nucleus nucleus: colliding beams, PRIRODNE ZNANOSTI. Fizika, photon: direct production, CERN LHC Coll, photon: yield, COLISÕES DE ÍONS PESADOS RELATIVÍSTICOS, quark-gluon plasma, beam energy scan, FOS: Physical sciences, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 114 Physical sciences, energy dependence, Nuclear physics, direct photons, energy: scaling, [ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex], DILEPTONS, Au+Au collisions, beam energy scan, quark-gluon plasma, direct photons, PHENIX, RHIC, 0103 physical sciences, 010306 general physics, impact parameter: dependence, Scaling, Nuclear Physics, gold, NATURAL SCIENCES. Physics, Yield (chemistry), High Energy Physics::Experiment, Relativistic Heavy Ion Collider, Beam (structure), experimental results
Abstract: The PHENIX collaboration presents first measurements of low-momentum ($0.4$1\,GeV/$c$) direct-photon yield $dN_{\gamma}^{\rm dir}/d\eta$ is a smooth function of $dN_{\rm ch}/d\eta$ and can be well described as proportional to $(dN_{\rm ch}/d\eta)^\alpha$ with $\alpha{\approx}1.25$. This scaling behavior holds for a wide range of beam energies at the Relativistic Heavy Ion Collider and the Large Hadron Collider, for centrality selected samples, as well as for different, $A$$+$$A$ collision systems. At a given beam energy the scaling also holds for high $p_T$ ($>5$\,GeV/$c$) but when results from different collision energies are compared, an additional $\sqrt{s_{_{NN}}}$-dependent multiplicative factor is needed to describe the integrated-direct-photon yield., Comment: 673 authors from 82 institutions, 10 pages, 4 figures. v2 is version accepted for publication in Physical Review Letters. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html
Published: 2019

8. Derivation of density operators for generalized entropies with quantum analysis

Author: Masamichi Ishihara
Subjects: Statistics and Probability, Statistical Mechanics (cond-mat.stat-mech), Entropy (statistical thermodynamics), Principle of maximum entropy, Tsallis entropy, FOS: Physical sciences, Expectation value, Condensed Matter Physics, Rényi entropy, Operator (computer programming), Statistical physics, Quantum, Condensed Matter - Statistical Mechanics, Mathematics
Abstract: We gave a simple derivation of density operator with the quantum analysis. We dealt with the functional of a density operator, and applied maximum entropy principle. We obtained easily the density operators for the Tsallis entropy and R\'enyi entropy with the $q$-expectation value (escort average), and also obtained easily the density operators for the Boltzmann-Gibbs entropy and the Burg entropy with the conventional expectation value. The quantum analysis works effectively in the calculation of the variation of the functional which includes trace., Comment: 8 pages
Published: 2019

9. Low-momentum direct-photon measurement in Cu + Cu collisions at sNN=200GeV

Author: K. S. Joo, C. A. Ogilvie, T. K. Hemmick, O. Dietzsch, Yasuo Miake, E. T. Atomssa, H. Valle, J. G. Boissevain, C. P. Wong, T. Rinn, Masashi Kaneta, M. Connors, W. A. Zajc, Steven E. Skutnik, L. Kochenda, D. Kawall, S. Esumi, V. Baublis, Julia Velkovska, A. Denisov, V. Cianciolo, S. Bathe, T. O. S. Haseler, V. I. Kochetkov, Agneta Oskarsson, John Matthew Durham, M. Rosati, K. S. Sim, V. Dzhordzhadze, Y. Berdnikov, Y. Akiba, M. Mishra, C. Pinkenburg, K. Dehmelt, C. L. Woody, A. Berdnikov, Sergey Fokin, Tae-Yeon Lee, M. Grosse Perdekamp, G. Mitsuka, H. Qu, Junji Tojo, Y. Kwon, S. Nagamiya, Vaclav Vrba, Klaus Johannes Reygers, K. Hill, Y. Fukao, S. Park, J. Murata, Martin Purschke, C. A. Aidala, A. Shevel, S. Hasegawa, Hideki Hamagaki, W. Fan, K. Aoki, H. Hiejima, M. Stepanov, G. Roche, A. A. Vinogradov, K. O. Eyser, A. K. Purwar, K. Das, K. Fujiwara, E. P. Hartouni, A. Kiss, A. Bagoly, G. S. Kyle, Gerd Joachim Kunde, C. P. Singh, Z. Yasin, H. W. Van Hecke, T. Horaguchi, Henner Buesching, S. P. Sorensen, James Alexander, Dylan Walker, Herve Borel, N. Kamihara, R. Armendariz, T. Majoros, Jiangyong Jia, Y. Goto, K. Imai, J. T. Mitchell, N. Hotvedt, R. Seidl, N. A. Lewis, I. Shein, Petr Gallus, Marcus Hohlmann, R. Averbeck, A. Isupov, C. Suire, S. Kametani, T. Hester, M. J. Skoby, D. Sharma, Byung-Sik Hong, A. Bazilevsky, A. Morreale, Vladislav Manko, A. Taketani, A. Drees, J. Sziklai, Z. Fraenkel, V. L. Rykov, T. Dahms, J. G. Lajoie, Philippe Rosnet, V. Khachatryan, M. B. Deaton, S. Campbell, Anne Marie Sickles, P. Tarján, Alberto Baldisseri, C. L. Silva, S. Belikov, J. Kubart, H. A. Gustafsson, J. H. Kang, J. S. Haggerty, I. V. Sourikova, Brian Cole, A. Romana, R. S. Towell, J. S. Bok, D. Kotchetkov, L. Zou, Alexandre Lebedev, M. Alfred, T. Hachiya, I. Garishvili, Akio Kiyomichi, F. Wei, A. Hadj Henni, C. Zhang, Y. Tanaka, Masamichi Ishihara, D. E. Fields, T. L. Thomas, B. Azmoun, Y. J. Mao, A. Král, C. R. Cleven, C. Haegemann, Y. Inoue, John Hill, B. V. Jacak, M. J. Kweon, M. K. Lee, D. M. Lee, G. R. Young, N. Kurihara, Minghui Liu, V-N. Tram, E. J. Desmond, O. Zaudtke, C. Vale, B. S. Chang, A. Kravitz, D. Kotov, Ryugo S. Hayano, M. Naglis, M. Gonin, T. Hoshino, Nagahiro Saito, H. A. Torii, Toru Sugitate, J. Klay, H. Yu, J. Egdemir, L. D. Isenhower, F. Staley, L. Baksay, M. Heffner, Kenneth Francis Read, T. Ichihara, Viktor Riabov, M. Finger, Y. Riabov, J. Bryslawskyj, Wei Xie, M. McCumber, C. Y. Chi, M. Oka, Charles Maguire, B. Kurgyis, M. Togawa, Jan Rak, Y. Ueda, R. Lacey, Dong-Hun Kim, A. V. Kazantsev, Kenta Shigaki, M. Nguyen, J. Park, V. S. Pantuev, A. Dion, F. Matathias, Jason Kamin, K. Kurita, Kiyoshi Tanida, Y. S. Lai, Kensuke Homma, R. Granier de Cassagnac, A. Adare, E. Kistenev, H. Pereira, Motoi Inaba, J. D. Orjuela Koop, T. Tabaru, D. Richford, A. S. Nyanin, M. Sarsour, M. Csanad, S. P. Stoll, A. Rakotozafindrabe, M. Slunecka, R. Belmont, L. Tomášek, Z. Sun, P. Mikeš, A. Enokizono, Saskia Mioduszewski, P. Constantin, S. Chernichenko, Y. H. Leung, B. Komkov, H. Harada, D. E. Mihalik, J. Gosset, I. J. Choi, Rachid Nouicer, H. Pei, G. David, J. H. Do, B. Bassalleck, R. Pak, H. Iinuma, Y. Tsuchimoto, D. McGlinchey, Balazs Ujvari, M. Konno, Senta Greene, François Fleuret, K. Okada, Hiroaki Ohnishi, S. S.E. Rosendahl, T. C. Awes, Kyoichiro Ozawa, T. Liška, N. N. Ajitanand, A. P.T. Palounek, J. Jin, I. E. Yushmanov, Eun-Hee Kim, G. Bunce, H. En'yo, David D'Enterria, Jun Kikuchi, Alexei Khanzadeev, L. Aphecetche, E. M. Takagui, Y. Nakamiya, D. Lynch, M. J. Leitch, Tadaaki Isobe, I. Ravinovich, E. Stenlund, H. Sakata, N. Novitzky, Z. Rowan, S. N. White, A. Deshpande, M. Ouchida, G. Baksay, Takahiro Nakamura, P. L. McGaughey, M. A. L. Leite, B. E. Norman, J. Asai, E. O'Brien, M. Chiu, Y. Nagata, S. Yokkaichi, A. Churyn, D. Jouan, B. Sahlmueller, Susumu Oda, D. V. Perepelitsa, Johannes Peter Wessels, Xingguo Li, M. N. Wagner, Shingo Sakai, T. V. Moukhanova, R. A. Soltz, A. Durum, R. Vértesi, S. H. Lee, M. Issah, D. Watanabe, H. Ge, K. Nakano, M. D. Malik, E. Vznuzdaev, Y. Watanabe, J. D. Osborn, J. E. Frantz, V. Babintsev, W. E. Sondheim, I. Younus, R. Bennett, Jen-Chieh Peng, K. Boyle, P. A. Rukoyatkin, A. Soldatov, Osamu Jinnouchi, Matthew G. Reuter, Takahiro Fusayasu, Z. Ji, D. Winter, Hiroyuki Sako, D. Yu Peressounko, Xiong Wang, Alexander Malakhov, Qiao Xu, Dong Jo Kim, D. Silvermyr, L. S. Zolin, W. J. Park, S. H. Lim, P. D. Barnes, A. Yanovich, J. Chiba, Alice Mignerey, M. Wysocki, M. Mitrovski, J. Huang, Takao Sakaguchi, I. Tserruya, Yu. Efremenko, C. Klein-Boesing, A. D. Frawley, Prakhar Garg, V. Singh, A. Hodges, S. H. Aronson, W. Holzmann, S. F. Pate, Maya Hachiya Shimomura, Y. I. Makdisi, S. Butsyk, Vladimir Samsonov, H. Al-Bataineh, A. Glenn, P. V. Radzevich, M. J. Tannenbaum, B. K. Schmoll, Eunja Kim, D. Ivanishchev, Jaehyeok Yoo, D. Mukhopadhyay, S. Rembeczki, V. Papavassiliou, Sébastien Gadrat, Alexander Milov, I. Nakagawa, C. E. Perezlara, Eva Haslum, O. Drapier, Frank Ellinghaus, B. Lenzi, E. R. Kinney, Robert F. Hobbs, D. P. Morrison, V. E. Semenov, Tatsuya Chujo, S. Afanasiev, Tamas Ferenc Csorgo, A. Ster, N. Feege, S. I. Morrow, J. Newby, Debashish Pal, S. Sawada, J. Ying, A. Franz, J. Runchey, B. M. Johnson, J. L. Nagle, D. Hornback, C. Silvestre, A. Taranenko, Marisilvia Donadelli, V. Bumazhnov, M. P. Comets, Kazushi Miki, T. A. Shibata, D. Kincses, Min Soo Kim, D. Isenhower, A. Toia, Tamas Novak, T. Moon, L. Mašek, J. L. Charvet, Rushan Han, T. E. Miller, Kei Nagashima, V. Canoa Roman, P. Chung, Raphael Noel Tieulent, Susumu Sato, W. S. Emam, H. Kanou, Taku Gunji, H. Gong, J. Seele, M. Patel, F. Kajihara, H. Delagrange, S. Zhou, M. Virius, S. Takagi, M. Boer, Sándor Lökös, K. N. Barish, S. Zharko, M. L. Brooks, B. Love, Y. L. Yamaguchi, C. Xu, A. G. Litvinenko, A. Kozlov, R. Seto, K. Haruna, T. W. Danley, X. He, J. Zimamyi, O. O. Omiwade, V. Peresedov, S. Batsouli, H. Masui, A. K. Dubey, A. A. Bickley, N. Grau, K. Shoji, W. Peng, and P. W. Stankus
Subjects: Physics, Photon, Mass distribution, 010308 nuclear & particles physics, Hadron, Virtual particle, 01 natural sciences, Spectral line, Nuclear physics, Momentum, 0103 physical sciences, Mass spectrum, Rapidity, Nuclear Experiment, 010306 general physics
Abstract: We measured direct photons for pT
Published: 2018

10. Measurement of emission-angle anisotropy via long-range angular correlations with high- pT hadrons in d+Au and p+p collisions at sNN=200 GeV

Author: B. Love, Y. Fukao, Min-Hye Kim, C. Xu, T. Hester, S. Bathe, M. Rosati, Tamás Csörgő, Y. Ikeda, H. Sako, M. Virius, J. Murata, H. Masuda, Kensuke Homma, Maya Hachiya Shimomura, Vardan Khachatryan, A. Sexton, Sung Keun Park, S. Tarafdar, Manabu Togawa, B. Azmoun, Y. J. Mao, A. Král, D. Kawall, Dmitry Blau, S. Kudo, E. Richardson, J. Hanks, E. Vazquez-Zambrano, M. Kasai, Y. Tsuchimoto, Y. Iwanaga, I. E. Yushmanov, Alexei Khanzadeev, K. Nagai, R. Seto, J. D. Orjuela Koop, W. Peng, I. Younus, N. N. Ajitanand, E. Stenlund, S. Huang, K. B. Lee, Jong-Min Park, Taku Gunji, H. Gong, C. H. Chen, K. Tanida, Y. I. Makdisi, T. W. Danley, C. Pinkenburg, N. A. Lewis, T. V. Moukhanova, M. Patel, F. Kajihara, Jiangyong Jia, A. Basye, Eva Haslum, Peter Christiansen, Takahiro Fusayasu, Y. Goto, G. D. N. Perera, B. Bassalleck, G. Roche, Takahiro Nakamura, Koji Sato, B. Fadem, Alberica Toia, N. Grau, T. Kempel, A. Takeda, D. Silvermyr, Sándor Lökös, Shuo Han, M. Konno, X. Jiang, Marisilvia Donadelli, D. Kleinjan, Alexander Milov, I. Nakagawa, A. Kiss, G. Tarnai, Susumu Oda, Ryugo S. Hayano, C. Baumann, E. J. Desmond, K. A. Drees, Qiao Xu, S. Butsyk, M. Slunečka, J. Alexander, K. N. Barish, D. Roach, V. Bumazhnov, K. M. Kijima, I. Ravinovich, T. Engelmore, N. Novitzky, T. Murakami, E. M. Takagui, Jihyun Bhom, P. L. McGaughey, Motoi Inaba, J. C. Hill, S. Zharko, K. S. Lee, A. Dion, H. A. Gustafsson, Henner Buesching, Torsten Dahms, Y. J. Kwon, Steve Edwards, M. Grosse Perdekamp, A. Durum, M. J. Tannenbaum, A. Pun, Gerd Joachim Kunde, C. P. Singh, I. Shein, R. M. Wright, M. Bai, S. Sano, J. Newby, R. Tanabe, S. Zhou, Y. Nakamiya, D. Lynch, Y. Riabov, P. Liebing, J. Rak, A. Lebedev, O. Drapier, Xingguo Li, B. M. Johnson, E. R. Kinney, D. P. Morrison, S. Campbell, Mate Csanad, T. O. S. Haseler, Ralf Peter Averbeck, Y. Tanaka, E. Mannel, M. I. Nagy, H. Qu, A. V. Kazantsev, Y. Onuki, B. K. Schmoll, K. Yamaura, S. P. Sorensen, D. Watanabe, O. Chvala, P. Ružička, M. Nihashi, Marcus Hohlmann, Martin Purschke, C. A. Aidala, S. Rembeczki, G. Baksay, W. J. Park, Christopher Rosen, S. D. Rolnick, Tatsuya Chujo, R. Lacey, K. Sedgwick, M. S. Daugherity, Mihael Makek, R. Belmont, S. Yokkaichi, M. D. Malik, M. E. Connors, S. K. Park, J. B. Choi, J. D. Osborn, Zhiying You, E. Vznuzdaev, R. Bennett, L. Tomášek, C. Silvestre, Y. Fukuda, K. Dehmelt, A. Yanovich, Zirui Wang, R. Granier de Cassagnac, A. Adare, Barbara Jacak, Viktor Riabov, Gary Grim, K. V. Dharmawardane, J. G. Lajoie, M. Alfred, T. Hachiya, V. Jorjadze, Jen-Chieh Peng, Kenta Shigaki, M. Nguyen, A. Kravitz, Charles Maguire, Yu. Efremenko, T. L.T. Thomas, M. Finger, R. P. Pisani, M. L. Brooks, L. A. Linden Levy, Rushan Han, G. Mitsuka, S. I. Morrow, O. Dietzsch, D. E. Mihalik, E. T. Atomssa, Hongfang Liu, D. E. Fields, V. S. Pantuev, R. A. Soltz, M. Naglis, H. Nakagomi, J. Bryslawskyj, I. Danchev, D. Richford, S. Taneja, H. Valle, A. Taranenko, Beomkyu Kim, J. H. Kang, X. He, Hideki Hamagaki, W. Fan, K. Aoki, G. David, K. I. Hahn, J. E. Frantz, Jongmin Lee, J. S. Haggerty, S. W. Nam, K. Karatsu, H. J. Moon, L. Baksay, M. Gonin, Y. H. Leung, T. Horaguchi, T. Hoshino, Vladimir Samsonov, Christine Nattrass, M. Proissl, C. L. Silva, Alice Mignerey, Inkyu Park, L. D'Orazio, Z. Ji, D. Winter, A. Deshpande, Dipanwita Dutta, Z. Rowan, T. C. Awes, Kyoichiro Ozawa, T. Liška, Y. Aramaki, Jun Kikuchi, J. Hamblen, S. N. White, Anne Marie Sickles, H. Themann, M. Chiu, Ajit Kumar Mohanty, J. T. Mitchell, K. Fujiwara, Robert Vertesi, A. Sukhanov, K. Kurita, M. Kawashima, L. Zou, J. Sziklai, T. A. Shibata, Xiong Wang, C. Gal, Deepa Thomas, Kimberly Hill, D. Yu Peressounko, Z. Conesa del Valle, S. Sawada, J. Ying, A. Franz, J. S. Bok, Dong Jo Kim, Shoichi Hasegawa, Dennis Perepelitsa, B. Komkov, T. Sato, N. Hotvedt, I. J. Choi, Z. Fraenkel, A. Enokizono, M. McCumber, J. Koster, Masamichi Ishihara, R. Seidl, Brian Cole, C. O. Kim, J. M. Durham, Yoshifumi Ueda, Julia Velkovska, J. H. Do, Y. L. Yamaguchi, C. L. Towell, Susumu Sato, G. R. Young, Vladislav Manko, J. Runchey, Moonhee Kim, Frank Ellinghaus, Zvi Hirsh Citron, R. Pak, Minghui Liu, R. S. Towell, K. Watanabe, A. Taketani, Takao Sakaguchi, A. Sen, H. Masui, N. Feege, R. K. Choudhury, M. Heffner, Yuhei Morino, H. Ge, K. Das, K. Nakano, I. Garishvili, A. Veicht, Kenneth Francis Read, M. Boer, K. Okada, K. S. Sim, B. Sahlmueller, H. En'yo, T. Ichihara, S. Belikov, K. S. Joo, J. L. Nagle, P. Yin, F. Wei, D. S. Jumper, Makoto Oka, A. D. Frawley, W. E. Sondheim, M. J. Skoby, I. Tserruya, R. Yang, D. K. Mishra, Aaron Angerami, M. J. Leitch, D. Isenhower, V. Singh, A. Hodges, Tamas Novak, K. Boyle, T. Moon, K. Shoji, Y. Watanabe, Wesley James Metzger, K. Imai, Kenjiro Miki, T. Koblesky, N. Apadula, C. Vale, D. Hornback, Yongsun Kim, W. Holzmann, M. Sarsour, E. Kistenev, A. Timilsina, Y. S. Lai, R. Petti, B. Meredith, P. W. Stankus, Senta Greene, W. A. Zajc, S. Esumi, D. Sharma, A. Glenn, P. V. Radzevich, Eunja Kim, Animesh Datta, V. Baublis, H. A. Torii, B. Kurgyis, A. Denisov, R. Ichimiya, V. Cianciolo, Toru Sugitate, C. Y. Chi, E. O'Brien, P. Lichtenwalner, Balazs Ujvari, François Fleuret, Jason Kamin, M. Kurosawa, J. H. Yoo, Sergey Fokin, H. Pei, Agneta Oskarsson, D. Kincses, J. Jin, Y. Berdnikov, S. H. Lee, Y. Akiba, Timothy Thomas Rinn, Kei Nagashima, V. Canoa Roman, S. Nagamiya, P. Chung, J. Huang, Vaclav Vrba, Klaus Johannes Reygers, Astrid Morreale, J. Imrek, Raphael Noel Tieulent, M. K. Dayananda, Rui Wei, Prakhar Garg, M. Wysocki, Prashant Shukla, S. F. Pate, Ke. Nakamura, H. Al-Bataineh, D. Ivanishchev, V. Papavassiliou, C. E. Perezlara, A. S. Nyanin, Rachid Nouicer, C. L. Woody, A. Berdnikov, A. Caringi, T. W. Jones, Petr Gallus, I. V. Sourikova, J. P. Wessels, J. Seele, M. Ouchida, N. Means, H. Pereira, Aram Kim, F. Matathias, C. Oakley, A. Drees, K. Sakashita, S. Karthas, D. Kotov, S. P. Stoll, S. S.E. Rosendahl, G. Bunce, D. Jouan, C. A. Ogilvie, T. K. Hemmick, Bhawani Singh, Yasuo Miake, K. DeBlasio, L. Kochenda, M. Issah, S. Vazquez-Carson, Don McGlinchey, A. Bagoly, Norio Saito, Tsutomu Mibe, M. A. L. Leite, S. H. Lim, J. S. Kapustinsky, V. Babintsev, G. S. Kyle, Byung-Sik Hong, A. Bazilevsky, H. W. Yu, D. M. Lee, S. Dairaku, and H. Van Hecke
Subjects: Physics, Range (particle radiation), 010308 nuclear & particles physics, Hadron, 01 natural sciences, Pseudorapidity, 0103 physical sciences, Particle, High Energy Physics::Experiment, Rapidity, Particle flow, Impact parameter, Atomic physics, Nuclear Experiment, 010306 general physics, Anisotropy
Abstract: We present measurements of two-particle angular correlations between high-transverse-momentum (2
Published: 2018

11. Momentum distribution and correlation for a free scalar field in the Tsallis nonextensive statistics based on density operator

Author: Masamichi Ishihara
Subjects: Physics, Nuclear and High Energy Physics, Statistical Mechanics (cond-mat.stat-mech), 010308 nuclear & particles physics, Hadron, FOS: Physical sciences, Inverse, Expectation value, 01 natural sciences, Correlation, High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), 0103 physical sciences, Statistics, Entropy (information theory), Nuclear fusion, 010306 general physics, Scalar field, Condensed Matter - Statistical Mechanics, Boson
Abstract: We derived the expression of the normalized $q$-expectation value based on the density operator to the order $1-q$ with the physical temperature in the Tsallis nonextensive statistics of entropic parameter $q$. With the derived expression of the normalized $q$-expectation value, we calculated the momentum distribution and the correlation to the order $1-q$ as functions of the inverse physical temperature for a free scalar field. To the order $1-q$, the momentum distribution derived by using the density operator coincides with the momentum distribution derived from the entropic measure described with the distribution, when the physical temperature equals the temperature in the distribution derived from the entropic measure. The correlation depends on the momentums for $q \neq 1$. The factor two appears in the correlation for the same momentums, and indicates that the effects of boson at $q \neq 1$ and those at $q=1$ are similar for the correlation., 6 pages
Published: 2018

12. Chiral phase transition within the linear sigma model in the Tsallis nonextensive statistics based on density operator

Author: Masamichi Ishihara
Subjects: Physics, Nuclear and High Energy Physics, Sigma model, Nuclear Theory, Computer Science::Information Retrieval, Operator (physics), Astrophysics::Instrumentation and Methods for Astrophysics, General Physics and Astronomy, FOS: Physical sciences, Computer Science::Computation and Language (Computational Linguistics and Natural Language and Speech Processing), Chiral phase, Measure (mathematics), Nuclear Theory (nucl-th), High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), Statistics, Computer Science::General Literature
Abstract: We studied the chiral phase transition for small $|1-q|$ within the Tsallis nonextensive statistics of the entropic parameter $q$, where the quantity $|1-q|$ is the measure of the deviation from the Boltzmann-Gibbs statistics. We adopted the normalized $q$-expectation value in this study. We applied the free particle approximation and the massless approximation in the calculations of the expectation values. We estimated the critical physical temperature, and obtained the chiral condensate, the sigma mass, and the pion mass, as functions of the physical temperature $T_{\mathrm{ph}}$ for various $q$. We found the following facts. The $q$-dependence of the critical physical temperature is $1/\sqrt{q}$. The chiral condensate at $q$ is smaller than that at $q'$ for $q>q'$. The $q$-dependence of the pion mass and that of the sigma mass reflect the $q$-dependence of the condensate. The pion mass at $q$ is heavier than that at $q'$ for $q>q'$. The sigma mass at $q$ is heavier than that at $q'$ for $q>q'$ at high physical temperature, while the sigma mass at $q$ is lighter than that at $q'$ for $q>q'$ at low physical temperature. The quantities which are functions of the physical temperature $T_{\mathrm{ph}}$ and the entropic parameter $q$ are described by only the effective physical temperature defined as $\sqrt{q} T_{\mathrm{ph}}$ under the approximations., 12 pages, 3 figures
Published: 2018
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13. Phase transition for the system of small volume in the $\phi^4$ theory in the Tsallis nonextensive statistics

Author: Masamichi Ishihara
Subjects: Physics, High Energy Physics - Theory, Nuclear and High Energy Physics, Phase transition, Finite volume method, 010308 nuclear & particles physics, Computer Science::Information Retrieval, Critical phenomena, Condensation, Astrophysics::Instrumentation and Methods for Astrophysics, Computer Science::Computation and Language (Computational Linguistics and Natural Language and Speech Processing), Astronomy and Astrophysics, 01 natural sciences, Atomic and Molecular Physics, and Optics, 0103 physical sciences, Statistics, Computer Science::General Literature, 010306 general physics, Condensed Matter - Statistical Mechanics
Abstract: We studied the effects of the nonextensivity on the phase transition for the system of small volume $V$ in the $\phi^4$ theory in the Tsallis nonextensive statistics of entropic parameter $q$ and temperature $T$, when the deviation from the Boltzmann-Gibbs statistics, $|q-1|$, is small. We calculated the condensate and the mass to the order $q-1$ with the normalized $q$-expectation value under the massless free particle approximation. The following facts were found. The condensate $\Phi$ divided by $v$, $\Phi/v$, at $q$ is smaller than that at $q'$ for $q>q'$ as a function of $T_{\mathrm{ph}}/v$ which is the physical temperature $T_{\mathrm{ph}}$ divided by $v$, where $T_{\mathrm{ph}}$ at $q=1$ coincides with $T$ and $v$ is the value of the condensate at $T=0$. The mass decreases, reaches minimum, and increases after that, as $T_{\mathrm{ph}}$ increases. The mass at $q>1$ is lighter than the mass at $q=1$ at low physical temperature and heavier than the mass at $q=1$ at high physical temperature. The effects of the nonentensivity on the physical quantity as a function of $T_{\mathrm{ph}}$ become strong as $|q-1|$ increases. The results indicate the significance of the definition of the expectation value, the definition of the physical temperature, and the constraints for the density operator, when the terms including the volume of the system are not negligible., Comment: 11 pages, 6 figures
Published: 2017

14. Measurements of e+e− pairs from open heavy flavor in p+p and d+A collisions at sNN=200 GeV

Author: Martin Purschke, C. A. Aidala, T. Murakami, E. M. Takagui, D. Kawall, K. Tanida, K. A. Drees, D. Hornback, S. Afanasiev, M. Rosati, Tamás Csörgő, S. Kudo, M. J. Skoby, A. A. Vinogradov, S. Bathe, Maya Hachiya Shimomura, Jiangyong Jia, Y. Goto, S. I. Morrow, Vardan Khachatryan, Zvi Hirsh Citron, S. Sawada, K. L. Smith, A. Ster, M. I. Nagy, Gerd Joachim Kunde, N. Feege, J. Ying, A. Franz, J. Runchey, Y. Ito, Kensuke Homma, B. Meredith, J. Newby, Y. I. Makdisi, O. Dietzsch, Marcus Hohlmann, I. Shein, Y. Fukao, M. Patel, Yu. Efremenko, E. T. Atomssa, H. Valle, Dipanwita Dutta, C. Gal, Julia Velkovska, E. Vznuzdaev, Dmitry Blau, Z. Fraenkel, Carly W. Butler, S. Chernichenko, C. Silvestre, Y. Tanaka, B. Bassalleck, K. Sedgwick, H. A. Torii, Toru Sugitate, K. O. Eyser, M. Chiu, Ajit Kumar Mohanty, C. Baumann, S. Kametani, T. A. Shibata, T. Sato, Alberto Baldisseri, Mihael Makek, T. Hester, E. Mannel, J. H. Kang, Y. Onuki, D. Kapukchyan, J. Huang, M. Konno, J. S. Haggerty, M. J. Tannenbaum, Jan Rak, C. P. Singh, B. M. Johnson, R. K. Choudhury, P. Tarján, Torsten Dahms, M. Boer, M. Wysocki, E. P. Hartouni, Marisilvia Donadelli, V. Bumazhnov, B. K. Schmoll, R. Lacey, E. J. Desmond, S. P. Sorensen, R. Granier de Cassagnac, A. Taranenko, B. Azmoun, Y. J. Mao, A. Král, François Fleuret, Ryugo S. Hayano, L. Zou, Hongfang Liu, D. E. Fields, B. Love, F. Staley, L. Baksay, A. Adare, N. A. Lewis, Y. Nakamiya, D. Lynch, D. Isenhower, Tamas Novak, T. Moon, L. Mašek, V. Jorjadze, S. Batsouli, S. Rembeczki, Charles Maguire, T. Horaguchi, C. Xu, H. Pei, Radek Novotny, R. Tanabe, D. Layton, M. McCumber, C. M. Camacho, Eun Joo Kim, G. Baksay, Prashant Shukla, A. Isupov, H. Sako, Y. Watanabe, A. Rakotozafindrabe, Y. Riabov, Kenta Shigaki, A. K. Purwar, V-N. Tram, Jong-Min Park, Taku Gunji, H. Gong, F. Kajihara, L. Aphecetche, Timothy Thomas Rinn, S. F. Pate, Y. H. Leung, W. C. Chang, D. E. Mihalik, D. Richford, Y. Tsuchimoto, Balazs Ujvari, S. Tarafdar, N. Grau, A. Dion, Shuo Han, A. G. Litvinenko, Y. S. Lai, Seong H. Kim, P.L. McGaughey, T. O. S. Haseler, H. Qu, Masamichi Ishihara, Agneta Oskarsson, D. Kincses, Y. Berdnikov, J. L. Klay, Barbara Jacak, H. Iinuma, Yuhei Morino, Takahiro Fusayasu, Alexander Malakhov, T. Elder, Qiao Xu, H. Al-Bataineh, D. Silvermyr, L. S. Zolin, Motoi Inaba, J. C. Hill, J. G. Lajoie, M. Alfred, T. Hachiya, Michael William Phipps, B. Komkov, Anne Marie Sickles, H. Themann, V. R. Loggins, J. T. Mitchell, Alice Mignerey, W. J. Park, M. Mishra, Brennan Schaefer, J. Sziklai, Brian Cole, S. Nagamiya, A. Basye, A. Sexton, G. Tarnai, N. Hotvedt, R. Seidl, Vladislav Manko, R. S. Towell, P. D. Barnes, A. Yanovich, Hideki Hamagaki, W. Fan, K. Aoki, M. Nguyen, I. E. Yushmanov, Mate Csanad, G. David, A. S. Nyanin, A. Yu. Semenov, Rushan Han, J. Gosset, Alexei Khanzadeev, A. Kozlov, A. Bagoly, Vladimir Samsonov, J. S. Bok, D. Ivanishchev, Norio Saito, A. Morreale, M. A. L. Leite, K. I. Hahn, Vaclav Vrba, A. Kravitz, R. A. Soltz, Klaus Johannes Reygers, V. Papavassiliou, I. Garishvili, F. Wei, Z. Rowan, M. Naglis, H. Nakagomi, T. Hoshino, S. Butsyk, Takao Sakaguchi, A. Sen, Shoichi Hasegawa, S. N. White, C. E. Perezlara, Eva Haslum, P. Yin, R. Seto, P. Liebing, E. Stenlund, S. Huang, T. Niida, N. N. Ajitanand, Christine Nattrass, K. Haruna, Minghui Liu, Xiaomei Li, G. D. N. Perera, S. H. Lim, C. L. Silva, M. Gonin, P. Rosnet, S. Zhou, A. Lebedev, Rachid Nouicer, Christian Klein-Boesing, T. W. Danley, A. P.T. Palounek, J. M. Durham, Senta Greene, H. Ge, K. Das, K. Fujiwara, G. R. Young, Takahiro Nakamura, K. Nakano, K. Shoji, Anand Kumar Dubey, A. D. Frawley, J. S. Kapustinsky, Kenjiro Miki, Bruno Lenzi, Yoshifumi Ueda, J. H. Do, E. Kistenev, V. Babintsev, Y. L. Yamaguchi, C. L. Towell, Susumu Sato, S. D. Rolnick, W. E. Sondheim, Frank Ellinghaus, A. Sukhanov, B. Fadem, V. Dzhordzhadze, A. Hadj Henni, K. Kurita, David D'Enterria, M. Tomášek, Xuan Li, J. Alexander, C. Ayuso, Susumu Oda, K. Boyle, P. A. Rukoyatkin, H. Pereira, W. Peng, P. W. Stankus, G. S. Kyle, C. L. Woody, A. Berdnikov, J. L. Nagle, W. Holzmann, X. He, C. Vale, H. A. Gustafsson, B. S. Chang, J. L. Charvet, A. Timilsina, M. Heffner, A. Durum, Kenneth Francis Read, T. Ichihara, Byung-Sik Hong, A. Bazilevsky, R. Belmont, E. O'Brien, J. Bryslawskyj, C. Y. Chi, V. Peresedov, Robert Vertesi, Beomkyu Kim, K. S. Sim, Paul Constantin, Wei Xie, C. O. Kim, S. Yokkaichi, K. Yamaura, Yasutada Akiba, R. Pak, K. B. Lee, H. W. Yu, I. Younus, C. Zhang, Koji Sato, H. Van Hecke, A. Kiss, P. Ružička, D. M. Lee, Dae-Hyeok Kim, T. Kempel, J. Koster, T. Nagashima, Henner Buesching, R. Yang, Y. Ikeda, M. Kurosawa, K. Kiriluk, M. Grosse Perdekamp, E. O. Lallow, A. Deshpande, J. H. Yoo, J. G. Boissevain, M. E. Connors, I. V. Sourikova, H. Masui, T. Majoros, Keiji Nagai, K. Imai, Viktor Riabov, D. Roach, N. Kamihara, A. A. Bickley, K. M. Kijima, S. K. Park, Tadaaki Isobe, A. Pun, J. P. Wessels, J. Seele, C. Pinkenburg, Sándor Lökös, C. P. Wong, K. N. Barish, S. Zharko, M. Stepanov, G. Roche, L. D. Liu, Kei Nagashima, V. Canoa Roman, W. A. Zajc, M. Ouchida, N. Means, P. Chung, J. Jin, V. Baublis, A. Denisov, V. Cianciolo, J. Asai, Y. Tomita, Sergey Fokin, M. L. Brooks, F. Matathias, Z. Ji, D. Winter, D. Yu Peressounko, Dennis Perepelitsa, Shingo Sakai, Malik, M. Slunečka, I. J. Choi, J. Imrek, Raphael Noel Tieulent, Ralf Peter Averbeck, A. V. Kazantsev, L. Tomášek, A. Drees, P. Mikeš, A. Soldatov, Y. Fukuda, T. C. Awes, Kyoichiro Ozawa, T. Liška, Jun Kikuchi, C. A. Ogilvie, T. K. Hemmick, Bhawani Singh, Yasuo Miake, K. DeBlasio, L. Kochenda, M. Issah, S. Vazquez-Carson, Don McGlinchey, S. Syed, K. Sakashita, S. Karthas, D. Kotov, Jason Kamin, S. P. Stoll, S. S.E. Rosendahl, G. Bunce, J.-G. Park, A. Churyn, D. Jouan, Alberica Toia, Y. J. Kwon, V. S. Pantuev, Kimberly Hill, K. Okada, B. Sahlmueller, H. En'yo, M. J. Leitch, M. J. Kweon, G. Mitsuka, J. E. Frantz, Herve Borel, A. Enokizono, A. Taketani, D. S. Jumper, Makoto Oka, I. Tserruya, V. L. Rykov, S. Belikov, K. S. Joo, N. Apadula, I. Ravinovich, V. Singh, R. Petti, S. Esumi, D. Sharma, T. Engelmore, R. Ichimiya, T. Koblesky, M. Bai, M. Sarsour, J. D. Osborn, Inseok Yoon, A. Glenn, P. V. Radzevich, R. Bennett, Zirui Wang, T. L.T. Thomas, M. Finger, S. Dairaku, Eunja Kim, O. Zaudtke, Christophe Pierre Suire, Alexander Milov, M. Virius, Manabu Togawa, I. Nakagawa, N. Novitzky, J. D. Orjuela Koop, D. Mukhopadhyay, O. Drapier, E. R. Kinney, D. P. Morrison, T. V. Moukhanova, Min-Hye Kim, S. Campbell, V. E. Semenov, Tatsuya Chujo, K. Dehmelt, Jen-Chieh Peng, Xiong Wang, Dong Jo Kim, J. Murata, Mirta Dumancic, A. Veicht, and Tae-Yeon Lee
Subjects: Quantum chromodynamics, Physics, Particle physics, 010308 nuclear & particles physics, Drell–Yan process, Parton, 01 natural sciences, Spectral line, Nuclear physics, 0103 physical sciences, Quark–gluon plasma, Rapidity, Invariant mass, Perturbation theory (quantum mechanics), 010306 general physics
Abstract: We report a measurement of e+e− pairs from semileptonic heavy-flavor decays in p+p collisions at sNN=200 GeV. The e+e− pair yield from bb¯ and cc¯ is separated by exploiting a double differential fit done simultaneously in dielectron invariant mass and pT. We used three different event generators, pythia, mc@nlo, and powheg, to simulate the e+e− spectra from cc¯ and bb¯ production. The data can be well described by all three generators within the detector acceptance. However, when using the generators to extrapolate to 4π, significant differences are observed for the total cross section. These difference are less pronounced for bb¯ than for cc¯. The same model dependence was observed in already published d+A data. The p+p data are also directly compared with d+A data in mass and pT, and within the statistical accuracy no nuclear modification is seen.
Published: 2017

15. Momentum Distribution and Correlation due to mass difference caused by power-like distribution

Author: Masamichi Ishihara
Subjects: Physics, Nuclear and High Energy Physics, Momentum (technical analysis), Distribution (number theory), 010308 nuclear & particles physics, Computer Science::Information Retrieval, Astrophysics::Instrumentation and Methods for Astrophysics, General Physics and Astronomy, Magnitude (mathematics), FOS: Physical sciences, Computer Science::Computation and Language (Computational Linguistics and Natural Language and Speech Processing), Expectation value, Soft modes, 01 natural sciences, Power (physics), High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), Quantum electrodynamics, 0103 physical sciences, Computer Science::General Literature, Tsallis distribution, 010306 general physics, Value (mathematics)
Abstract: The momentum distribution and particle correlation due to the mass difference were studied both in the case of the conventional expectation value and in the case of $q$-expectation value, when the momentum distribution is described by a Tsallis distribution with the entropic parameter $q \ge 1$. The magnitude of the momentum distribution for hard modes increases as $q$ increases, and the $q$-dependence of the momentum distribution is quite weak for soft modes. The correlation at $q>1$ is larger than that at $q=1$ for soft modes, while the correlation at $q>1$ is smaller than that at $q=1$ for hard modes. The $q$-dependence of these quantities in the case of $q$-expectation value is weaker than that in the case of the conventional expectation value, respectively., 11 pages, 8 figures
Published: 2017
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16. Fractal Structure of the Distributions of Air Dose Rates in Koriyama City in Fukushima

Author: Masamichi Ishihara
Subjects: Fukushima Nuclear Accident, Epidemiology, business.industry, Health, Toxicology and Mutagenesis, Radiation Dosage, Atmospheric sciences, Fractal dimension, Fractals, Fractal, Air Pollutants, Radioactive, Environmental science, Radiology, Nuclear Medicine and imaging, Dose rate, Nuclear medicine, business, Power function
Abstract: The authors investigated the fractal structure of the distributions of air dose rates in Koriyama city in Fukushima using data published by the Fukushima Prefectural and Koriyama City governments. Relative frequency data of air dose rates (strength distribution) could be well fitted with a q-distribution. In the present analysis, the relative frequency decreases approximately as s for high air dose rate values, where the quantity s represents air dose rate. The fractal dimension is a function of the threshold sth of air dose rate. The fractal dimension is approximately 1.59 when sth is the average of the air dose rates in Koriyama (0.9 μSv h) and decreases with increasing the threshold: it is approximately 1.97 for sth = 0.6 μSv h and 1.40 for sth = 1.2 μSv h. These results confirm that the strength distribution behaves like a power function for high air dose rate values and that the fallout pattern can be described as a fractal.
Published: 2014

17. Azimuthally anisotropic emission of low-momentum direct photons in Au + Au collisions at sNN=200 GeV

Author: Hongfang Liu, D. E. Fields, Jong-Min Park, Taku Gunji, H. Gong, F. Kajihara, A. Basye, S. Bathe, K. Watanabe, M. Nihashi, R. S. Towell, I. Garishvili, F. Wei, M. McCumber, A. K. Purwar, K. Shoji, C. Silvestre, S. Butsyk, H. Van Hecke, O. Dietzsch, E. T. Atomssa, Kensuke Homma, K. Dehmelt, E. Richardson, Y. Ikeda, S. Zhou, H. Valle, S. Kanda, Yongsun Kim, J. Ide, Dipanwita Dutta, S. Kaneti, P. W. Stankus, Marisilvia Donadelli, V. Bumazhnov, R. Akimoto, C. Gal, Jen-Chieh Peng, S. D. Rolnick, R. P. Pisani, S. Taneja, C. Pinkenburg, Julia Velkovska, Yu. Efremenko, Animesh Datta, T. Sumita, C. Y. Chi, Yasutada Akiba, J. H. Kang, Y. Miyachi, T. Murakami, E. M. Takagui, J. S. Haggerty, S. R. Lee, B. Bassalleck, B. Kimelman, D. Reynolds, M. Stepanov, G. Roche, Y. S. Lai, Inkyu Park, S. P. Sorensen, O. Chvala, K. N. Barish, M. Konno, Sung Keun Park, R. Tanabe, P. Tarján, A. Yu. Semenov, N. N. Ajitanand, M. Kawashima, P. Montuenga, Xiong Wang, T. Niida, Dong Jo Kim, Z. Rowan, Tomoya Tsuji, M. Mendoza, S. Dairaku, A. Lebedev, M. Chiu, Ajit Kumar Mohanty, T. A. Shibata, Seong H. Kim, M. Beaumier, T. Sato, J. G. Lajoie, I. Younus, S. Sano, K. Karatsu, G. D. N. Perera, Takahiro Nakamura, S. N. White, S. Belikov, K. S. Joo, R. Belmont, S. Yokkaichi, Peter Christiansen, Yuhei Morino, C. Baumann, S. Kametani, D. K. Mishra, H. Sako, Atsushi Takahara, M. Alfred, T. Hachiya, S. Sawada, A. Veicht, S. Lee, Jennifer E. Perry, J. Ying, A. Franz, M. Rosati, Y. Nakamiya, D. Lynch, Susumu Oda, D. Isenhower, Shunji Nishimura, Tamás Csörgő, C. P. Singh, K. A. Drees, T. Kempel, Tamas Novak, T. Moon, Y. Fukao, R. A. Soltz, B. M. Johnson, J. G. Rubin, M. Naglis, Filip Krizek, M. L. Brooks, H. Nakagomi, T. Hoshino, N. Apadula, C. L. Silva, D. H. Kim, A. Vossen, A. Kravitz, Min-Hye Kim, Alberica Toia, G. Baksay, A. A. Vinogradov, A. Durum, Y. Hori, Anne Marie Sickles, H. Themann, X. He, J. Rak, Alexander Milov, K. Gainey, Barbara Jacak, Jiangyong Jia, Y. Goto, M. Virius, Manabu Togawa, T. Hester, R. Petti, A. Isupov, Zvi Hirsh Citron, I. Nakagawa, R. Luechtenborg, Young-Ki Kim, T. Engelmore, N. Novitzky, J. Sziklai, Hiromi Iinuma, Rushan Han, S. Esumi, Y. Aramaki, J. Klatsky, D. Sharma, Senta Greene, Alice Mignerey, M. Gonin, J. M. Durham, H. Ge, K. Das, K. Yamaura, V. Peresedov, Robert Vertesi, Y. J. Kwon, K. Nakano, O. Drapier, A. Král, J. B. Choi, R. Ichimiya, D. Kleinjan, E. R. Kinney, J. D. Orjuela Koop, N. A. Sparks, L. D'Orazio, S. Miyasaka, J. H. Do, Brian Cole, K. B. Kim, D. P. Morrison, C. L. Towell, Susumu Sato, Martin Purschke, C. H. Chen, M. Kurosawa, J. H. Yoo, C. A. Aidala, W. E. Sondheim, J. Koster, N. S. Bandara, J. S. Bok, A. V. Kazantsev, Vladimir Samsonov, Shoichi Hasegawa, S. Choi, J. T. Mitchell, S. Campbell, R. S. Hollis, B. H. Kang, E. P. Hartouni, A. Manion, Kei Nagashima, A. Sukhanov, K. Kurita, J. Huang, Bum-Hoon Lee, Pawan Kumar Netrakanti, G. W. Kim, P. Chung, N. Grau, N. Hotvedt, D. Kawall, H. Al-Ta'Ani, Tatsuya Chujo, S. Tarafdar, D. Kotchetkov, R. Seidl, Vladislav Manko, K. Tanida, B. Lewis, E. O'Brien, Christine Nattrass, K. Boyle, H. Masui, P. A. Rukoyatkin, D. Hornback, Z. Fraenkel, M. Leitgab, Shuo Han, J. E. Frantz, Jongmin Lee, H. Pereira, Matthew Snowball, T. O. S. Haseler, J. Imrek, Aaron White, J. Bryslawskyj, I. Danchev, I. Tserruya, J. S. Kang, A. Iordanova, M. Jezghani, A. A. Bickley, A. Mwai, Prakhar Garg, M. Wysocki, Raphael Noel Tieulent, Paul Constantin, V. Singh, B. Bannier, H. Qu, P. B. Diss, H. Asano, J. Murata, Kenjiro Miki, Bruno Lenzi, John Wood, G. R. Young, E. Kistenev, R. K. Choudhury, B. Azmoun, Y. J. Mao, B. Meredith, Motoi Inaba, J. C. Hill, Takao Sakaguchi, A. Sen, C. O. Kim, A. Enokizono, Eva Haslum, R. Pak, L. Tomášek, T. Koblesky, Beomkyu Kim, Wei Xie, M. Sarsour, V. S. Pantuev, C. M. Camacho, Prashant Shukla, M. Grosse Perdekamp, K. B. Lee, P. Mikeš, B. Love, R. M. Wright, D. Blau, S. F. Pate, A. Taketani, Hideki Hamagaki, K. Aoki, Priyanka Sett, M. Vargyas, Gerd Joachim Kunde, C. Vale, I. Shein, J. Jin, Ke. Nakamura, D. S. Jumper, Makoto Oka, Tomofumi Nagae, J. L. Nagle, P. Castera, P. Kline, G. David, T. Todoroki, K. S. Lee, A. Dion, E. J. Desmond, K. I. Hahn, A. Timilsina, M. E. Connors, M. Sano, A. Glenn, J. Hamblen, J. Hanks, L. Patel, L. Ding, A. G. Litvinenko, E. Vazquez-Zambrano, H. Al-Bataineh, A. Deshpande, J. A. Key, S. Afanasiev, A. Ster, N. Feege, Eunja Kim, K. Sedgwick, A. D. Frawley, Mihael Makek, I. Ravinovich, P. Liebing, A. Sexton, A. Nederlof, H. A. Torii, S. K. Park, Toru Sugitate, J. Newby, D. Roach, K. M. Kijima, S. Motschwiller, T. C. Awes, A. Rakotozafindrabe, Kyoichiro Ozawa, T. Liška, J. Sun, D. Ivanishchev, A. Kozlov, R. Seto, V. Papavassiliou, M. Bai, T. W. Danley, E. C. Aschenauer, M. Kasai, K. Hashimoto, K. Okada, B. Sahlmueller, H. En'yo, Y. Tsuchimoto, Tadaaki Isobe, Xingguo Li, B. Fadem, Y. Watanabe, I. J. Choi, B. Xia, I. E. Yushmanov, J. D. Osborn, Inseok Yoon, Zhiying You, J. Alexander, M. J. Leitch, R. Bennett, M. Slunečka, L. Guo, P. L. McGaughey, W. Holzmann, A. Taranenko, Alexei Khanzadeev, K. S. Sim, Shinichi Masumoto, H. F. Hamilton, T. L.T. Thomas, M. Finger, E. Stenlund, T. Horaguchi, M. Proissl, D. Winter, François Fleuret, S. Huang, H. A. Gustafsson, S. Beckman, D. Yu Peressounko, Maya Hachiya Shimomura, Vardan Khachatryan, Ralf Peter Averbeck, L. Zou, Dennis Perepelitsa, Y. I. Makdisi, Y. Tanaka, E. Mannel, S. Baumgart, Masamichi Ishihara, M. Javani, S. R. P. Mohapatra, C. Zhang, Minghui Liu, R. Yang, M. Heffner, T. V. Moukhanova, Kenneth Francis Read, T. Ichihara, P. Ružička, Viktor Riabov, Takahiro Fusayasu, K. V. Dharmawardane, K. Imai, M. I. Nagy, K. O. Eyser, D. Watanabe, Y. Onuki, M. J. Tannenbaum, Marcus Hohlmann, M. D. Malik, H. J. Moon, L. Baksay, B. K. Schmoll, Alexander Malakhov, H. Pei, E. Tennant, R. Lacey, E. Vznuzdaev, R. Granier de Cassagnac, A. Adare, R. Kitamura, Timothy Thomas Rinn, H. J. Kim, Charles Maguire, D. Silvermyr, L. S. Zolin, W. J. Park, Serpil Yalcin, Christopher Rosen, Aaron Angerami, A. Yanovich, W. A. Zajc, L. Xue, V. Baublis, A. Denisov, Yuki Watanabe, V. Cianciolo, Sergey Fokin, Ryugo S. Hayano, Y. Riabov, Kenta Shigaki, M. Nguyen, A. S. Nyanin, Rachid Nouicer, A. N. Zelenski, C. L. Woody, A. Berdnikov, Petr Gallus, A. Garishvili, I. V. Sourikova, J. P. Wessels, J. Seele, M. Ouchida, N. Means, M. Patel, X. Jiang, Torsten Dahms, K. Sakashita, D. Kotov, M. S. Daugherity, Eun Joo Kim, Ferdinando Giordano, Y. Komatsu, A. Kiss, Henner Buesching, Jason Kamin, Steve Edwards, M. Tomášek, S. P. Stoll, G. S. Kyle, X. Gong, S. S.E. Rosendahl, G. Bunce, L. A. Linden Levy, J.-G. Park, Agneta Oskarsson, D. Jouan, Byung-Sik Hong, Y. Berdnikov, A. Bazilevsky, S. H. Lee, C. McKinney, M. Mishra, Brennan Schaefer, S. Nagamiya, Vaclav Vrba, Klaus Johannes Reygers, Astrid Morreale, Rui Wei, H. W. Yu, P. Rosnet, C. A. Ogilvie, K. Fujiwara, Kisung Lee, T. K. Hemmick, Bhawani Singh, B. J. Ramson, Y. L. Yamaguchi, Frank Ellinghaus, Yasuo Miake, D. M. Lee, K. DeBlasio, L. Kochenda, M. Issah, E. Leitner, R. Pinson, S. Mizuno, Don McGlinchey, S. Wolin, N. Kamihara, K. Kiriluk, F. Matathias, B. Komkov, Byoungchoo Park, A. Drees, Norio Saito, Tsutomu Mibe, M. A. L. Leite, S. H. Lim, J. S. Kapustinsky, V. Babintsev, Mate Csanad, and A. Meles
Subjects: Physics, Photon, 010308 nuclear & particles physics, media_common.quotation_subject, Hadron, Bremsstrahlung, 01 natural sciences, Asymmetry, Particle identification, Nuclear physics, 0103 physical sciences, Rapidity, Atomic physics, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, Anisotropy, media_common
Abstract: The PHENIX experiment at the BNL Relativistic Heavy Ion Collider has measured second- and third-order Fourier coefficients of the azimuthal distributions of direct photons emitted at midrapidity in Au+Au collisions at sNN=200 GeV for various collision centralities. Combining two different analysis techniques, results were obtained in the transverse momentum range of 0.4
Published: 2016

18. Discovery of the First 2- State in 16C via Neutron Knockout Reaction

Author: Takashi Nakamura, Hideaki Otsu, Jongwon Hwang, Masamichi Ishihara, Hooi Jin Ong, T. Nakabayashi, Susumu Shimoura, M. Tamaki, Y. Hashimoto, Toshio Kobayashi, Yasuhiro Togano, N. Matsui, T. Okumura, M. Kitayama, Y. Satou, Tomoko Gomi, Nori Aoi, S. Kawai, Yosuke Kondo, Yasuhiro H. Matsuda, Y. Yanagisawa, Satoshi Takeuchi, M. Shinohara, Hiroyoshi Sakurai, T. Motobayashi, N. Endo, Takashi Sugimoto, N. Fukuda, and T. K. Onishi
Subjects: Physics, Nuclear Theory, Atomic and Molecular Physics, and Optics, Coincidence, Nuclear physics, Cross section (physics), medicine.anatomical_structure, medicine, Neutron, Invariant mass, Atomic physics, Nuclear Experiment, Spectroscopy, Nucleus, Excitation, Liquid hydrogen
Abstract: The 16C nucleus has been investigated by the neutron knockout reaction of 17C on a liquid hydrogen target. Applying the invariant mass method in inverse kinematics and γ-ray spectroscopy, the energy spectrum was reconstructed by triple-coincidence measurement, in which neutrons, charged fragments, and γ rays from the decay of the reaction residue (16C*) were detected. A peak at 0.47 MeV was observed in the invariant mass spectrum in coincidence with a peak at 0.74 MeV in the γ-ray spectrum, which indicates the presence of an unbound state with an excitation energy of 5.46 MeV. Comparison of the experimental cross section with the value derived by a theoretical calculation provided evidence that the spin-parity of this state is 2−.
Published: 2013

19. Breakup Reactions of Drip-Line Nuclei Near N = 20, 28

Author: Masamichi Ishihara, K. Yoneda, Toshiyuki Kubo, G Lee, K. Tanaka, T. Sumikama, Hiroyoshi Sakurai, T. Motobayashi, H. S. Lee, Nobuo Tanaka, Rituparna Kanungo, Tsuyoshi Ohnishi, Naohito Inabe, R. Barthelemy, Hideaki Otsu, Masafumi Matsushita, S. Deguchi, Y. Kawada, Kazutaka Takahashi, T. Sako, N. A. Orr, Michael Famiano, M. Takechi, Satoshi Takeuchi, S. K. Kim, Y. Satou, Hiroyuki Takeda, Nori Aoi, Yosuke Kondo, H. Baba, Ryuki Tanaka, N. Fukuda, Nagao Kobayashi, Yasuhiro Togano, Takashi Nakamura, Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), and Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)
Subjects: Physics, Nuclear reaction, 010308 nuclear & particles physics, Nuclear Theory, Halo nucleus, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Breakup, 01 natural sciences, Atomic and Molecular Physics, and Optics, Nuclear physics, Cross section (physics), 0103 physical sciences, Coulomb, Neutron, Halo, Atomic physics, Nuclear Experiment, 010306 general physics, Nucleon
Abstract: International audience; The one-neutron removal cross section from 29Ne, 33,35,37Mg, and 39,41Si on a Pb target have been measured at around 240 MeV/nucleon at the RIBF (RI-Beam Factory) at RIKEN. This main goal of the experiment was to extract the inclusive Coulomb breakup cross sections in order to probe possible halo structures through their enhanced low-energy E1 strengths - so-called soft E1 excitations. The results showed significant enhancement of the one-neutron removal Coulomb breakup cross section for 37Mg. This in turn provides evidence for the existence of halo structure in 37Mg.
Published: 2013

20. Measurement of the higher-order anisotropic flow coefficients for identified hadrons in Au + Au collisions atsNN=200GeV

Author: C. Silvestre, Y. I. Makdisi, S. Belikov, K. S. Joo, L. Tomášek, J. Wessels, Alberica Toia, Marisilvia Donadelli, V. Bumazhnov, S. Mizuno, Yuhei Morino, E. M. Takagui, M. Kurosawa, P. Mikeš, Y. J. Kwon, E. J. Desmond, M. J. Tannenbaum, T. Engelmore, B. Komkov, Kenjiro Miki, Bruno Lenzi, E. Kistenev, K. Watanabe, S. N. White, R. Tanabe, A. Morreale, N. Kamihara, H. Pei, J. Hanks, S. Esumi, John Wood, D. Sharma, T. C. Awes, Kyoichiro Ozawa, T. Liška, I. Tserruya, F. Matathias, K. Shoji, R. Ichimiya, Senta Greene, Norio Saito, E. Vazquez-Zambrano, A. Rakotozafindrabe, J. Jin, Yongsun Kim, S. Afanasiev, K. Das, M. A. L. Leite, P. W. Stankus, P. Chung, S. Sawada, Barbara Jacak, C. L. Woody, Alice Mignerey, A. Berdnikov, J. Ying, A. Franz, Masamichi Ishihara, K. Nakano, A. Drees, Rushan Han, Martin Purschke, C. A. Aidala, W. E. Sondheim, J. Newby, Y. Tanaka, D. Ivanischev, Y. Tsuchimoto, E. Mannel, C. Baumann, Paul Constantin, Minghui Liu, B. Love, Takao Sakaguchi, M. I. Nagy, D. Watanabe, D. Kotchetkov, K. Boyle, P. A. Rukoyatkin, S. Kametani, V. S. Pantuev, K. Sakashita, J. Alexander, L. Baksay, S. Bathe, V. Singh, Marcus Hohlmann, I. E. Yushmanov, E. O 'Brien, C. P. Singh, K. A. Drees, M. Heffner, B. M. Johnson, Kenneth Francis Read, H. Qu, M. Grosse Perdekamp, A. Yu. Semenov, D. Hornback, J. S. Kapustinsky, Agneta Oskarsson, A. D. Frawley, Z. Fraenkel, Vladimir Samsonov, T. Ichihara, E. Vznuzdaev, H. A. Gustafsson, B. Meredith, J. Hamblen, M. Virius, A. Isupov, Hideki Hamagaki, K. Aoki, Y. Watanabe, R. K. Choudhury, J. E. Frantz, G. David, T. Todoroki, M. E. Connors, K. I. Hahn, V. Babintsev, Jason Kamin, B. Azmoun, Y. J. Mao, A. Král, S. K. Park, A. Lebedev, Y. Berdnikov, J. Sziklai, S. P. Stoll, A. Taranenko, C. Zhang, W. Holzmann, Alexei Khanzadeev, Kensuke Homma, E. Richardson, Brian Cole, M. Mishra, S. Nagamiya, K. Okada, Tadaaki Isobe, T. Horaguchi, B. Sahlmueller, Jongmin Lee, R. S. Towell, S. S.E. Rosendahl, G. Bunce, J.-G. Park, M. Chiu, Ajit Kumar Mohanty, E. Stenlund, I. V. Sourikova, S. Huang, M. J. Leitch, Vaclav Vrba, Klaus Johannes Reygers, H. A. Torii, Toru Sugitate, Torsten Dahms, J. L. Nagle, I. Garishvili, F. Wei, Kyeongpil Lee, M. Slunečka, O. Dietzsch, D. Jouan, K. S. Lee, A. Dion, A. G. Litvinenko, P. Liebing, Rui Wei, R. A. Soltz, E. T. Atomssa, A. Kiss, A. Glenn, H. Valle, J. Seele, S. Tarafdar, I. Younus, Peter Christiansen, T. Kempel, Viktor Riabov, R. Belmont, S. Yokkaichi, François Fleuret, Eunja Kim, David Olle Rickard Silvermyr, M. Proissl, D. Winter, D. Yu Peressounko, M. Naglis, J. Ide, Animesh Datta, M. Ouchida, Dipanwita Dutta, Henner Buesching, Jen-Chieh Peng, Ralf Peter Averbeck, D.H. Kim, T. A. Shibata, T. Sato, B. Bassalleck, P.L. McGaughey, Eun Joo Kim, C. L. Silva, N. Means, M. Wysocki, C. M. Camacho, C. Y. Chi, Prashant Shukla, W. A. Zajc, Yasutada Akiba, A. Kozlov, Julia Velkovska, Yu. Efremenko, C. A. Ogilvie, Steve Edwards, V. Baublis, D. Reynolds, M. Rosati, I. Danchev, Eva Haslum, G. S. Kyle, A. Denisov, V. Cianciolo, M. Konno, T. K. Hemmick, Bhawani Singh, Yasuo Miake, R. Seto, P. Ruzicka, D. Isenhower, T. V. Moukhanova, J. H. Kang, S. F. Pate, J. S. Haggerty, Beomkyu Kim, Inkyu Park, Wei Xie, Xiong Wang, Sergey Fokin, L. Kochenda, M. Issah, Malik, A. Deshpande, Byung-Sik Hong, A. Bazilevsky, J. M. Durham, Dong Jo Kim, Takahiro Fusayasu, Alexander Malakhov, A. A. Vinogradov, B. Fadem, H. Al-Bataineh, L. A. Linden Levy, Y. Nakamiya, D. Lynch, I. J. Choi, Ryugo S. Hayano, L. S. Zolin, A. Enokizono, Jiangyong Jia, Y. Goto, Y. Riabov, P. Rosnet, X. He, Y. S. Lai, A. Veicht, K. Fujiwara, D. Kawall, W. J. Park, Christopher Rosen, Taku Gunji, H. Gong, A. Yanovich, H. Van Hecke, Kenta Shigaki, D. M. Lee, A. Taketani, M. Nguyen, J. Murata, Y. L. Yamaguchi, K. Tanida, Y. Ikeda, G. Baksay, Alexander Milov, Y. Aramaki, F. Kajihara, A. S. Nyanin, V. Peresedov, Robert Vertesi, K. Kiriluk, A. Basye, I. Nakagawa, R. Luechtenborg, D. S. Jumper, Makoto Oka, E. Leitner, Tamas Ferenc Csorgo, Rachid Nouicer, V. Papavassiliou, O. Drapier, Frank Ellinghaus, Zvi Hirsh Citron, E. R. Kinney, J. Koster, C. Pinkenburg, D. P. Morrison, S. Campbell, S. Butsyk, Gerd Joachim Kunde, G. Roche, Tatsuya Chujo, S. Zhou, I. Shein, J. T. Mitchell, S. D. Rolnick, I. Ravinovich, H. Masui, R. Seidl, Vladislav Manko, K. Sedgwick, A. A. Bickley, M. Bai, K. N. Barish, C. Vale, S. Sano, Zhiying You, R. Bennett, M. L. Brooks, T. L.T. Thomas, M. Finger, S. Dairaku, Manabu Togawa, N. N. Ajitanand, C. H. Chen, Takahiro Nakamura, M. Gonin, Y. Onuki, Susumu Oda, A. Sukhanov, K. Kurita, Jan Rak, E. P. Hartouni, R. Lacey, H. Pereira, A. Durum, R. Granier de Cassagnac, A. Adare, Charles Maguire, K. Yamaura, R. Pak, K. B. Lee, Hongfang Liu, D. E. Fields, M. McCumber, A. K. Purwar, K. Karatsu, D. Roach, K. M. Kijima, Anne Marie Sickles, H. Themann, Xingguo Li, J. S. Bok, S. P. Sorensen, O. Chvala, Seong H. Kim, J. G. Lajoie, A. Kravitz, G. R. Young, K. S. Sim, H. En 'yo, Mate Csanad, R. Yang, R. P. Pisani, K. Imai, M. Kawashima, Y. Fukao, T. Hester, N. A. Sparks, N. Grau, Motoi Inaba, J. C. Hill, R. M. Wright, A. V. Kazantsev, Maya Hachiya Shimomura, and P. Tarján
Subjects: Physics, Valence (chemistry), 010308 nuclear & particles physics, Hadron, Kinetic energy, 01 natural sciences, Spectral line, Transverse plane, 0103 physical sciences, Quark–gluon plasma, Atomic physics, Impact parameter, Nuclear Experiment, 010306 general physics, Anisotropy
Abstract: Measurements of the anisotropic flow coefficients v2{Ψ2},v3{Ψ3},v4{Ψ4}, and v4{Ψ2} for identified particles (π±,K±, and p+p) at midrapidity, obtained relative to the event planes Ψm at forward rapidities in Au + Au collisions at sNN=200GeV, are presented as a function of collision centrality and particle transverse momenta pT. The vn coefficients show characteristic patterns consistent with hydrodynamical expansion of the matter produced in the collisions. For each harmonic n, a modified valence quark-number Nq scaling [plotting vn{Ψm}/(Nq)n/2 versus transverse kinetic energies (KET)/Nq] is observed to yield a single curve for all the measured particle species for a broad range of KET. A simultaneous blast-wave model fit to the observed vn{Ψm}(pT) coefficients and published particle spectra identifies radial flow anisotropies ρn{Ψm} and spatial eccentricities sn{Ψm} at freeze-out. These are generally smaller than the initial-state participant-plane geometric eccentricities n{ΨmPP} as also observed in the final eccentricity from quantum interferometry measurements with respect to the event plane. © 2016 American Physical Society. (Less)
Published: 2016

21. Centrality-Dependent Modification of Jet-Production Rates in Deuteron-Gold Collisions atsNN=200 GeV

Author: Alexander Milov, R. A. Soltz, T. Engelmore, P. Sett, Frank Ellinghaus, Z. Rowan, Y. Watanabe, M. Mendoza, S. N. White, M. Grosse Perdekamp, F. Giordano, Deepa Thomas, E. R. Kinney, D. P. Morrison, M. E. Connors, N. S. Bandara, S. K. Park, J. E. Frantz, S. Bathe, Agneta Oskarsson, Zvi Hirsh Citron, M. Beaumier, Tatsuya Chujo, Vladimir Samsonov, Christine Nattrass, H. Ge, K. Nakano, K. S. Joo, M. Tomášek, G. S. Kyle, Y. Berdnikov, S. H. Lee, C. McKinney, James Alexander, R. Averbeck, Byung-Sik Hong, A. Bazilevsky, T. Todoroki, A. V. Kazantsev, W. E. Sondheim, Alexei Khanzadeev, Vaclav Vrba, Klaus Johannes Reygers, Takafumi Niida, J. Huang, H. A. Gustafsson, H. W. Yu, Alexandre Lebedev, K. Boyle, Y. Nakamiya, D. Lynch, L. Tomášek, E. Stenlund, C. Baumann, J. B. Choi, Sung Keun Park, T. L. Thomas, Rui Wei, D. M. Lee, X. Jiang, S. Esumi, R. Ichimiya, Hiroyuki Sako, B. Komkov, S. W. Nam, P. Ružička, Dipak Kumar Mishra, T. Jones, Peter Christiansen, M. K. Dayananda, G. Baksay, N. N. Ajitanand, S. Hasegawa, N. Feege, Bhartendu K. Singh, B. Azmoun, Y. J. Mao, A. Král, P. Liebing, Tsutomu Mibe, J. L. Nagle, D. Winter, Y. Fukao, Prakhar Garg, Jen-Chieh Peng, Viktor Riabov, J. G. Rubin, M. A. L. Leite, S. H. Lim, R. Belmont, J. S. Kapustinsky, A. Kiss, V. Babintsev, D. Yu Peressounko, Dennis Perepelitsa, J. Newby, J. H. Bhom, G. Roche, B. Bannier, K. S. Sim, Ryugo S. Hayano, Henner Buesching, B. Sahlmueller, Y. J. Kim, M. Oka, T. V. Moukhanova, Dmitry Blau, G. D. N. Perera, T. C. Awes, Kyoichiro Ozawa, T. Liška, Jun Kikuchi, D. Reynolds, Serpil Yalcin, F. Matathias, P. Kline, K. S. Lee, Atsushi Taketani, E. J. Desmond, M. Chiu, Ajit Kumar Mohanty, Takahiro Nakamura, V. S. Pantuev, D. McGlinchey, Susumu Oda, I. Nakagawa, Aaron Angerami, Steve Edwards, Inkyu Park, B. Meredith, Shunji Nishimura, K. A. Drees, Marcus Hohlmann, D. Hornback, S. Dairaku, Xiong Wang, Z. Conesa del Valle, E. Vazquez-Zambrano, T. A. Shibata, C. L. Silva, T. Sato, R. Yang, S. Taneja, Y. Tanaka, J. Hamblen, A. Durum, P. Montuenga, W. A. Zajc, L. A. Linden Levy, L. Xue, Kensuke Homma, E. Richardson, E. Mannel, John Hill, A. Taranenko, Y. Riabov, K. Imai, T. Murakami, Kenta Shigaki, S. Sato, O. Dietzsch, H. Valle, C. A. Ogilvie, T. K. Hemmick, B. J. Ramson, J. M. Durham, Yasuo Miake, Martin Purschke, V. Baublis, C. A. Aidala, B. Bassalleck, J. Rak, T. Hester, Kazushi Miki, D. Sharma, M. Kasai, Y. Tsuchimoto, M. Wysocki, T. Novák, I. Tserruya, Dipanwita Dutta, A. Denisov, M. Jezghani, Yu. Efremenko, V. Cianciolo, K. Yamaura, A. Meles, Y. Iwanaga, M. Konno, Toru Sugitate, J. Klatsky, K. DeBlasio, P. L. McGaughey, K. Fujiwara, K. Karatsu, Pawan Kumar Netrakanti, M. Nguyen, A. S. Nyanin, V. Singh, H. J. Moon, C. Gal, L. Baksay, Julia Velkovska, L. Kochenda, M. Issah, M. Virius, T. Koblesky, R. Pinson, D. Isenhower, A. Toia, A. Morreale, Rachid Nouicer, I. E. Yushmanov, T. Moon, Z. Fraenkel, M. Stepanov, Anne Marie Sickles, Sergey Fokin, H. Pei, Hongfang Liu, D. E. Fields, A. N. Zelenski, M. Proissl, V. Khachatryan, J. T. Mitchell, K. N. Barish, R. K. Choudhury, K. Okada, B. Schaefer, S. Tarafdar, B. V. Jacak, Senta Greene, A. Glenn, J. D. Orjuela Koop, K. Das, M. Rosati, N. Hotvedt, S. Sawada, R. Seidl, Eunja Kim, J. S. Bok, Vladislav Manko, Tamás Csörgő, J. Ying, M. McCumber, T. Kempel, C. L. Woody, A. Berdnikov, M. Naglis, H. Nakagomi, François Fleuret, T. Hoshino, A. Franz, M. Slunečka, A. T. Basye, S. Beckman, C. H. Chen, Gary Grim, Eva Haslum, M. J. Leitch, S. Belikov, T. Ichihara, K. V. Dharmawardane, S. Mizuno, B. Fadem, N. Apadula, A. Caringi, C. Oakley, A. Drees, A. Manion, J. Hanks, J. H. Kang, I. Ravinovich, Jiangyong Jia, E. O'Brien, D. J. Kim, Petr Gallus, G. R. Young, C. Vale, J. S. Haggerty, K. Sakashita, A. Timilsina, Charles Maguire, Takahiro Fusayasu, N. Grau, R. S. Towell, Prashant Shukla, M. Kurosawa, E. T. Atomssa, H. W. Van Hecke, D. Kotov, M. Bai, S. F. Pate, D. S. Jumper, D. Kleinjan, S. Campbell, E. Kistenev, Y. J. Kwon, Jason Kamin, I. V. Sourikova, S. P. Stoll, Kei Nagashima, A. Enokizono, D. Silvermyr, Ke. Nakamura, O. Drapier, P. Lichtenwalner, Y. Onuki, Y. Goto, H. Al-Bataineh, Motoi Inaba, J. Sun, Alice Mignerey, S. S.E. Rosendahl, G. Bunce, L. Zou, J. A. Key, R. M. Wright, M. Sarsour, Mate Csanad, W. J. Park, A. Iordanova, Christopher Rosen, R. Kitamura, G. W. Kim, P. Chung, N. Saito, D. Jouan, L. D'Orazio, Masamichi Ishihara, S. Miyasaka, D. Ivanishchev, J. H. Do, A. Yanovich, V. Papavassiliou, Y. S. Lai, S. Y. Han, J. D. Osborn, Inseok Yoon, Raphael Noel Tieulent, Minghui Liu, S. Nagamiya, M. Ouchida, C. L. Towell, Y. Ikeda, R. Lacey, N. Means, Zhiying You, J. Jin, Takao Sakaguchi, S. Sano, T. Rinn, M. Nihashi, A. Sen, M. Togawa, R. Bennett, M. Kawashima, M. Heffner, Kenneth Francis Read, M. Finger, E. M. Takagui, R. Granier de Cassagnac, A. Adare, A. Datta, H. Asano, T. O. S. Haseler, Jong-Min Park, M. Gonin, C. Pinkenburg, N. Novitzky, Jongmin Lee, Taku Gunji, H. Gong, J. Seele, D. Kawall, M. S. Daugherity, A. D. Frawley, H. Qu, P. B. Diss, K. Dehmelt, R. P. Pisani, K. Tanida, H. Themann, C. P. Singh, M. Patel, F. Kajihara, B. M. Johnson, J. Murata, Hideki Hamagaki, K. Aoki, Gerd Joachim Kunde, G. David, I. Shein, A. S. White, K. Sedgwick, S. Butsyk, S. Huang, Mihael Makek, A. Deshpande, R. J. Petti, K. I. Hahn, I. Younus, S. Zhou, T. Dahms, W. Holzmann, S. D. Rolnick, H. F. Hamilton, Maya Hachiya Shimomura, R. S. Hollis, J. Sziklai, K. Watanabe, Y. I. Makdisi, K. Shoji, Brian Cole, I. Garishvili, M. L. Brooks, S. Yokkaichi, F. Wei, M. J. Tannenbaum, H. Torii, B. K. Schmoll, A. Kim, Jaehyeok Yoo, S. Rembeczki, T. Sumita, C. Y. Chi, B. Love, Yasutada Akiba, Y. L. Yamaguchi, A. Sexton, R. Seto, T. W. Danley, I. Danchev, X. He, Y. Aramaki, Robert Vertesi, H. En'yo, J. Koster, H. Masui, A. Veicht, A. Mwai, S. Kanda, T. Horaguchi, P. W. Stankus, A. Sukhanov, K. Kurita, H. Pereira, Y. Morino, C. O. Kim, R. Pak, S. P. Sorensen, O. Chvala, C. Silvestre, J. G. Lajoie, M. Alfred, T. Hachiya, Marisilvia Donadelli, V. Bumazhnov, Min Soo Kim, R. Tanabe, Rushan Han, S. Lee, Jennifer E. Perry, A. Kravitz, K. B. Lee, D. Roach, K. M. Kijima, B. Kimelman, K. Hashimoto, Xingguo Li, A. Dion, Johannes Peter Wessels, J. Bryslawskyj, Beomkyu Kim, M. Snowball, I. J. Choi, B. Xia, M. I. Nagy, D. Watanabe, M. D. Malik, and E. Vznuzdaev
Subjects: Physics, Jet (fluid), Particle physics, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, General Physics and Astronomy, 01 natural sciences, Spectral line, Nuclear physics, Deuterium, Pseudorapidity, 0103 physical sciences, High Energy Physics::Experiment, Production (computer science), PHENIX detector, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, Energy (signal processing)
Abstract: Jet production rates are measured in p+p and d+Au collisions at sqrt[s_{NN}]=200 GeV recorded in 2008 with the PHENIX detector at the Relativistic Heavy Ion Collider. Jets are reconstructed using the R=0.3 anti-k_{t} algorithm from energy deposits in the electromagnetic calorimeter and charged tracks in multiwire proportional chambers, and the jet transverse momentum (p_{T}) spectra are corrected for the detector response. Spectra are reported for jets with 12
Published: 2016

22. Scaling properties of fractional momentum loss of high-pThadrons in nucleus-nucleus collisions atsNNfrom 62.4 GeV to 2.76 TeV

Author: V. I. Kochetkov, Gerd Joachim Kunde, I. Shein, K. Sedgwick, Mihael Makek, Sung Keun Park, L. Guo, Y. Watanabe, N. N. Ajitanand, Alexei Khanzadeev, M. Tomášek, M. Rosati, Tamás Csörgő, Paul Constantin, G. D. N. Perera, A. Soldatov, Takahiro Nakamura, M. Grosse Perdekamp, G. S. Kyle, Shinichi Masumoto, E. Stenlund, M. E. Connors, S. Huang, Mate Csanad, A. A. Vinogradov, Susumu Oda, S. K. Park, A. Durum, Jiangyong Jia, M. Naglis, Y. Goto, H. Nakagomi, T. Hoshino, C. L. Silva, D. H. Kim, K. Yamaura, H. Sakata, J. M. Durham, J. H. Do, C. L. Towell, Susumu Sato, A. Yu. Semenov, A. Hadj Henni, M. Proissl, D. Kleinjan, D. Winter, D. Yu Peressounko, J. Bryslawskyj, I. Danchev, Dennis Perepelitsa, Byung-Sik Hong, Atsushi Takahara, P. Tarján, T. Niida, A. Lebedev, Beomkyu Kim, Wei Xie, Maya Hachiya Shimomura, A. Bazilevsky, Vardan Khachatryan, M. Nihashi, A. Meles, Yuhei Morino, Marisilvia Donadelli, V. Bumazhnov, M. P. Comets, S. Wolin, Y. I. Makdisi, Shunji Nishimura, K. A. Drees, N. Kamihara, T. E. Miller, T. Tabaru, T. Murakami, E. M. Takagui, David D'Enterria, F. Staley, Hongfang Liu, D. E. Fields, A. Deshpande, S. F. Pate, T. V. Moukhanova, Hiromi Iinuma, F. Matathias, R. Armendariz, Senta Greene, H. W. Yu, K. S. Sim, O. Dietzsch, K. Watanabe, Kei Nagashima, A. Baldisseri, Christian Klein-Boesing, M. McCumber, A. K. Purwar, Byoungchoo Park, R. P. Pisani, J. Rak, R. Belmont, R. Tanabe, S. Bathe, A. Drees, S. Yokkaichi, G. W. Kim, P. Chung, B. E. Norman, D. M. Lee, E. T. Atomssa, H. Valle, H. Van Hecke, J. Imrek, Agneta Oskarsson, I. J. Choi, B. Xia, M. J. Tannenbaum, Alberica Toia, Tae-Yeon Lee, Dipanwita Dutta, Robert F. Hobbs, E. O'Brien, B. K. Schmoll, S. Takagi, Raphael Noel Tieulent, Min-Hye Kim, Junji Tojo, J. Klatsky, J. B. Choi, C. Gal, J. Kubart, J. L. Klay, M. N. Wagner, W. S. Emam, Y. Berdnikov, M. Kawashima, Y. Fukao, A. Shevel, K. Kiriluk, Y. Ikeda, J. G. Boissevain, Masashi Kaneta, S. H. Lee, Y. Akiba, Anand Kumar Dubey, Barbara Jacak, S. Dairaku, Julia Velkovska, S. Kanda, Yongsun Kim, E. Tennant, S. Rembeczki, C. Silvestre, C. McKinney, S. V. Afanasiev, Martin Purschke, H. Sako, Rushan Han, M. Mishra, Brennan Schaefer, S. Nagamiya, T. Hester, R. S. Hollis, P. W. Stankus, E. P. Hartouni, Y. J. Kwon, M. Chiu, Ajit Kumar Mohanty, Z. Rowan, Tomoya Tsuji, T. A. Shibata, M. B. Deaton, M. K. Mitrovski, L. Aphecetche, C. A. Aidala, M. Mendoza, T. Sato, C. Baumann, S. Kametani, N. S. Bandara, Kensuke Homma, B. Kimelman, Vladimir Samsonov, Christine Nattrass, S. N. White, R. Akimoto, M. Patel, Y. Tanaka, E. Mannel, R. Yang, H. Hiejima, X. Jiang, C. Pinkenburg, C. P. Singh, N. A. Sparks, Christophe Pierre Suire, Alexander Milov, I. Nakagawa, R. Luechtenborg, Young-Ki Kim, T. Engelmore, N. Novitzky, K. N. Barish, C. A. Ogilvie, Kisung Lee, T. K. Hemmick, Bhawani Singh, M. K. Lee, K. Imai, Vaclav Vrba, Klaus Johannes Reygers, Astrid Morreale, Rui Wei, O. Zaudtke, J. S. Kang, K. O. Eyser, D. Isenhower, Tamas Novak, T. Moon, L. Mašek, D. Kotchetkov, A. Kiss, B. J. Ramson, Yasuo Miake, O. Drapier, V-N. Tram, N. Grau, Y. Onuki, M. Leitgab, Shuo Han, Johannes Peter Wessels, M. Stepanov, G. Roche, A. Iordanova, J. Murata, Zvi Hirsh Citron, M. Javani, Nagahiro Saito, P. Montuenga, C. R. Cleven, I. Younus, C. Haegemann, Y. Inoue, Tomofumi Nagae, J. L. Nagle, Yu. Efremenko, C. L. Woody, A. Berdnikov, B. M. Johnson, E. R. Kinney, Filip Krizek, V. S. Pantuev, S. Sawada, P. Castera, H. Ge, K. Das, Z. Yasin, Henner Buesching, Peter Christiansen, M. Sano, Steve Edwards, K. Nakano, E. Richardson, S. Chernichenko, J. H. Kang, Y. Miyachi, Motoi Inaba, J. C. Hill, J. S. Haggerty, Z. Fraenkel, S. R. Lee, J. Hamblen, H. Kanou, Torsten Dahms, H. J. Moon, A. Romana, R. Lacey, D. P. Morrison, K. DeBlasio, T. Kempel, L. Baksay, R. M. Wright, Jong-Min Park, Taku Gunji, H. Gong, S. Campbell, K. B. Kim, J. Ying, A. Franz, F. Kajihara, B. H. Kang, A. Isupov, A. Basye, M. Virius, L. Kochenda, M. Issah, Manabu Togawa, R. Granier de Cassagnac, M. S. Daugherity, W. E. Sondheim, A. Adare, X. Gong, Shoichi Hasegawa, H. Delagrange, R. K. Choudhury, B. Bassalleck, K. Okada, Steven E. Skutnik, Eun Joo Kim, Ferdinando Giordano, Charles Maguire, B. Sahlmueller, H. En'yo, R. Pinson, Don McGlinchey, B. Azmoun, Y. J. Mao, V. E. Semenov, Y. Komatsu, S. Choi, S. Butsyk, A. Král, J. Sziklai, L. A. Linden Levy, M. J. Leitch, M. J. Kweon, T. O. S. Haseler, S. Sano, K. Boyle, P. A. Rukoyatkin, H. Al-Ta'Ani, Tatsuya Chujo, J. D. Orjuela Koop, H. Qu, P. B. Diss, S. Zhou, P. Rosnet, S. D. Rolnick, S. Taneja, Petr Gallus, Osamu Jinnouchi, Brian Cole, R. S. Towell, K. Fujiwara, K. Sakashita, D. Kotov, C. H. Chen, M. Konno, B. Komkov, Kenjiro Miki, Y. S. Lai, K. Karatsu, K. Dehmelt, Hideki Hamagaki, K. Aoki, M. Vargyas, G. David, T. Todoroki, K. I. Hahn, Bruno Lenzi, E. Kistenev, Y. L. Yamaguchi, D. Mukhopadhyay, Frank Ellinghaus, Matthew G. Reuter, Takahiro Fusayasu, I. Garishvili, Akio Kiyomichi, Jen-Chieh Peng, F. Wei, Dmitry Blau, Y. Hori, Anne Marie Sickles, A. Manion, E. Leitner, H. Themann, K. Gainey, J. Egdemir, Jason Kamin, J. Huang, S. Mizuno, Tsutomu Mibe, M. A. L. Leite, E. J. Desmond, J. Hanks, Bum-Hoon Lee, Alexander Malakhov, J. S. Bok, I. Ravinovich, D. Reynolds, P. Kline, K. S. Lee, A. Dion, E. Vazquez-Zambrano, N. Kurihara, A. Nederlof, Y. Nakamiya, D. Lynch, H. Harada, A. Garishvili, Y. Nagata, S. P. Stoll, J. Ide, Prakhar Garg, M. Wysocki, D. Silvermyr, Inkyu Park, A. Rakotozafindrabe, S. H. Lim, M. Kasai, M. Bai, Y. Tsuchimoto, B. Bannier, G. R. Young, M. Gonin, Xiong Wang, E. C. Aschenauer, J. Chiba, L. S. Zolin, I. E. Yushmanov, Animesh Datta, T. Sumita, J. S. Kapustinsky, S. S.E. Rosendahl, G. Bunce, Alice Mignerey, J.-G. Park, L. D'Orazio, S. Miyasaka, C. Y. Chi, G. Baksay, W. J. Park, Christopher Rosen, C. M. Camacho, Prashant Shukla, Pawan Kumar Netrakanti, I. V. Sourikova, V. Babintsev, Dong Jo Kim, P. Liebing, P. D. Barnes, A. Yanovich, Aaron White, M. Beaumier, S. Belikov, K. S. Joo, K. Shoji, A. Churyn, Ke. Nakamura, A. Sukhanov, K. Kurita, Takao Sakaguchi, A. Sen, M. L. Brooks, M. Kurosawa, D. Hornback, Matthew Snowball, J. H. Yoo, J. D. Osborn, H. Al-Bataineh, Inseok Yoon, Zhiying You, D. K. Mishra, D. Jouan, A. D. Frawley, J. G. Rubin, B. Meredith, J. A. Key, R. Bennett, J. Sun, B. Lewis, S. H. Aronson, T. L.T. Thomas, C. O. Kim, N. Apadula, S. Motschwiller, R. Pak, A. Veicht, X. He, J. Zimamyi, S. Tarafdar, M. Finger, John Wood, H. A. Torii, D. Ivanishchev, V. Papavassiliou, W. Holzmann, H. F. Hamilton, J. E. Frantz, Jongmin Lee, I. Tserruya, Toru Sugitate, L. D. Isenhower, S. Kaneti, S. P. Sorensen, Sébastien Gadrat, D. Pal, Dylan Walker, J. Jin, A. Vossen, R. Petti, M. Jezghani, O. O. Omiwade, O. Chvala, Seong H. Kim, J. T. Mitchell, V. Singh, J. G. Lajoie, M. Alfred, T. Hachiya, S. Esumi, S. Lee, Jennifer E. Perry, A. Enokizono, Y. Aramaki, D. Sharma, R. Ichimiya, François Fleuret, A. Kravitz, N. Hotvedt, R. Seidl, Hiroaki Ohnishi, K. B. Lee, T. Koblesky, Vladislav Manko, A. Taketani, Priyanka Sett, H. Asano, V. Peresedov, Robert Vertesi, D. S. Jumper, Makoto Oka, M. Sarsour, V. L. Rykov, L. Ding, S. Mioduszewski, D. Roach, K. M. Kijima, J. Gosset, H. Pei, Eva Haslum, K. Hashimoto, A. Glenn, Xingguo Li, C. Vale, J. Koster, Eunja Kim, B. S. Chang, A. Timilsina, Timothy Thomas Rinn, H. J. Kim, H. Masui, A. Ster, N. Feege, A. A. Bickley, J. Newby, A. Mwai, B. Love, Tadaaki Isobe, A. G. Litvinenko, M. Slunečka, A. Taranenko, J. L. Charvet, A. Sexton, T. Horaguchi, P. L. McGaughey, A. Kozlov, R. Seto, K. Haruna, T. W. Danley, S. Beckman, Ralf Peter Averbeck, J. Seele, B. Fadem, V. Dzhordzhadze, L. Zou, M. Ouchida, S. Baumgart, Masamichi Ishihara, N. Means, Minghui Liu, J. Asai, M. Heffner, Kenneth Francis Read, H. Pereira, Shingo Sakai, T. Ichihara, A. V. Kazantsev, L. Tomášek, Ryugo S. Hayano, P. Mikeš, Y. Riabov, Kenta Shigaki, M. Nguyen, A. S. Nyanin, Rachid Nouicer, A. N. Zelenski, L. Patel, T. C. Awes, Kyoichiro Ozawa, T. Liška, Jun Kikuchi, Serpil Yalcin, Aaron Angerami, W. A. Zajc, L. Xue, V. Baublis, A. Denisov, Yuki Watanabe, V. Cianciolo, Sergey Fokin, S. Batsouli, K. V. Dharmawardane, R. A. Soltz, R. Kitamura, A. P.T. Palounek, J. Alexander, H. A. Gustafsson, S. R. P. Mohapatra, C. Zhang, P. Ružička, H. Borel, Viktor Riabov, M. I. Nagy, D. Watanabe, Marcus Hohlmann, M. D. Malik, E. Vznuzdaev, D. Kawall, and K. Tanida
Subjects: Quark, Physics, Particle physics, 010308 nuclear & particles physics, Hadron, Parton, 16. Peace & justice, 7. Clean energy, 01 natural sciences, 0103 physical sciences, High Energy Physics::Experiment, Rapidity, Nuclear Experiment, 010306 general physics, Centrality, Relativistic Heavy Ion Collider, Glauber, Energy (signal processing)
Abstract: Measurements of the fractional momentum loss $({S}_{\mathrm{loss}}\ensuremath{\equiv}\ensuremath{\delta}{p}_{T}/{p}_{T})$ of high-transverse-momentum-identified hadrons in heavy-ion collisions are presented. Using ${\ensuremath{\pi}}^{0}$ in $\mathrm{Au}+\mathrm{Au}$ and $\mathrm{Cu}+\mathrm{Cu}$ collisions at $\sqrt{{s}_{{}_{NN}}}=62.4$ and 200 GeV measured by the PHENIX experiment at the Relativistic Heavy Ion Collider and and charged hadrons in $\mathrm{Pb}+\mathrm{Pb}$ collisions measured by the ALICE experiment at the Large Hadron Collider, we studied the scaling properties of ${S}_{\mathrm{loss}}$ as a function of a number of variables: the number of participants, ${N}_{\mathrm{part}}$, the number of quark participants, ${N}_{\mathrm{qp}}$, the charged-particle density, $d{N}_{\mathrm{ch}}/d\ensuremath{\eta}$, and the Bjorken energy density times the equilibration time, ${\ensuremath{\varepsilon}}_{\mathrm{Bj}}{\ensuremath{\tau}}_{0}$. We find that the ${p}_{T}$, where ${S}_{\mathrm{loss}}$ has its maximum, varies both with centrality and collision energy. Above the maximum, ${S}_{\mathrm{loss}}$ tends to follow a power-law function with all four scaling variables. The data at $\sqrt{{s}_{{}_{NN}}}=200$ GeV and 2.76 TeV, for sufficiently high particle densities, have a common scaling of ${S}_{\mathrm{loss}}$ with $d{N}_{\mathrm{ch}}/d\ensuremath{\eta}$ and ${\ensuremath{\varepsilon}}_{\mathrm{Bj}}{\ensuremath{\tau}}_{0}$, lending insight into the physics of parton energy loss.
Published: 2016

23. Transverse energy production and charged-particle multiplicity at midrapidity in various systems fromsNN=7.7to 200 GeV

Author: I. Garishvili, Akio Kiyomichi, F. Wei, N. Kurihara, Animesh Datta, T. Sumita, M. G. Hur, M. Kurosawa, J. H. Yoo, B. Lewis, J. M. Burward-Hoy, C. Baumann, S. Kametani, C. P. Singh, S. Hayashi, D. Pal, J. Jin, B. M. Johnson, Filip Krizek, K. Dehmelt, A. Isupov, J. Sziklai, Brian Cole, Mate Csanad, Jen-Chieh Peng, B. Voas, K. O. Eyser, Y. Onuki, J. L. Charvet, P. Tarján, Y. J. Mao, A. Král, S. Takagi, H. Van Hecke, S. Bathe, A. Nukariya, D. Reynolds, Inkyu Park, Xiong Wang, Z. Conesa del Valle, Dong Jo Kim, Y. Ikeda, T. Murakami, E. M. Takagui, R. Lacey, Atsushi Takahara, I. Ravinovich, M. Nihashi, Kensuke Homma, E. Richardson, K. N. Barish, Shunji Nishimura, M. Gonin, M. Patel, X. Jiang, Ryugo S. Hayano, J. G. Boissevain, T. E. Miller, Tadaaki Isobe, R. Granier de Cassagnac, A. Adare, J. S. Chai, Robert F. Hobbs, Min-Hye Kim, Y. Le Bornec, Masashi Kaneta, Alberica Toia, C. Silvestre, S. Chernichenko, R. A. Soltz, David D'Enterria, N. Crossette, H. Lim, A. Veicht, Charles Maguire, A. Kiss, M. Naglis, Y. Nagata, B. Bassalleck, Yuhei Morino, Steven Kelly, K. A. Drees, J. Rak, Y. Riabov, S. Sano, Kei Nagashima, R. P. Pisani, M. Bai, H. Nakagomi, M. Skolnik, T. Hoshino, G. W. Kim, P. Chung, A. Denisov, Marisilvia Donadelli, Kenta Shigaki, M. Konno, Torsten Dahms, M. Slunečka, V. Bumazhnov, M. P. Comets, J. Klatsky, D. Black, E. C. Aschenauer, R. Akimoto, S. S. Ryu, Hari Guragain, J. Imrek, M. Holmes, C. L. Silva, D. H. Kim, S. Sawada, K. Hasuko, Z. Yasin, B. Azmoun, G. C. Mishra, J. Ying, A. Franz, Christophe Pierre Suire, Alexander Milov, I. Nakagawa, P. L. McGaughey, M. Nguyen, Young-Ki Kim, Henner Buesching, Raphael Noel Tieulent, Nikolay Tyurin, T. Engelmore, N. Novitzky, Jihyun Bhom, J. B. Choi, W. S. Emam, Y. Nakamiya, D. Lynch, M. N. Wagner, M. Kawashima, Steve Edwards, S. Tarafdar, H. Pei, J. Chiba, Alice Mignerey, A. Sukhanov, K. Kurita, K. S. Sim, T. Tabaru, Y. Gu, H. Asano, R. S. Towell, Prashant Shukla, H. Kanou, Jong-Min Park, S. F. Pate, Y. Fukao, Y. J. Kwon, J. Alexander, Taku Gunji, H. Gong, M. I. Nagy, M. S. Daugherity, H. Pereira, F. Kajihara, A. S. Nyanin, G. Baksay, A. Shevel, A. Basye, Junji Tojo, C. Pinkenburg, O. Drapier, Frank Ellinghaus, Matthew Snowball, J. D. Osborn, Inseok Yoon, Zhiying You, S. Beckman, Eun Joo Kim, R. S. Hollis, Ferdinando Giordano, Ke. Nakamura, E. P. Hartouni, R. Bennett, H. Al-Bataineh, H. Delagrange, R. Tanabe, Y. Komatsu, B. Love, M. T. Bjorndal, T. Hester, L. D'Orazio, M. R. Stone, S. Miyasaka, R. Yang, J. A. Key, S. Butsyk, Rachid Nouicer, D. Watanabe, A. N. Zelenski, Hiromi Iinuma, H. Hiejima, D. S. Brown, Marcus Hohlmann, S. W. Nam, Ralf Peter Averbeck, S. Motschwiller, E. R. Kinney, Marie Germain, S. Zhou, Ahmed Al-Jamel, T. L.T. Thomas, M. Finger, W. C. Smith, J. M. Durham, H. A. Gustafsson, D. P. Morrison, J. E. Frantz, D. Ivanishchev, Jongmin Lee, S. D. Rolnick, Y. S. Kim, B. Komkov, M. D. Malik, X. Gong, Pawan Kumar Netrakanti, E. Vznuzdaev, V. Papavassiliou, Sébastien Gadrat, C.Y. Chi, Joakim Nystrand, J. H. Do, A. Iordanova, C. L. Towell, Susumu Sato, C. O. Kim, Senta Greene, J. T. Mitchell, K. Imai, Ajit Kumar Mohanty, S. Campbell, T. A. Shibata, M. Stepanov, G. Roche, T. Sato, Laurent Bernard Aphecetche, L. Zou, A. G. Litvinenko, P. Kline, K. S. Lee, Herve Borel, A. Dion, S. Taneja, Eva Haslum, B. H. Kang, J. Murata, V. E. Semenov, N. Hotvedt, R. Seidl, R. Pak, Aaron White, Norio Saito, Tsutomu Mibe, M. A. L. Leite, Hideyuki Oide, J. Huang, Bum-Hoon Lee, S. Solano, A. Isinhue, Vladislav Manko, S. Baumgart, A. Enokizono, D. Isenhower, Masamichi Ishihara, P. K. Khandai, M. K. Dayananda, Prakhar Garg, Margaret Harvey, A. Taketani, Priyanka Sett, K. Karatsu, Tamas Novak, T. Moon, L. Mašek, M. Wysocki, B. Bannier, V-N. Tram, N. Grau, M. K. Lee, Y. Hori, Anne Marie Sickles, H. Al-Ta'Ani, Tatsuya Chujo, I. Tserruya, J. Gosset, H. Themann, K. Gainey, Minghui Liu, Takao Sakaguchi, A. Sen, L. Guo, J. L. Klay, Alexei Khanzadeev, Barbara Jacak, D. S. Jumper, M. Leitgab, Shinichi Masumoto, Shuo Han, L. A. Linden Levy, S. Kaneti, Makoto Oka, S. P. Sorensen, M. S. Ryu, S. H. Lim, V. L. Rykov, B. E. Norman, J. P. Sullivan, J. P. Wessels, J. Seele, J. S. Kang, M. Heffner, A. Ster, N. Feege, Kenneth Francis Read, Rushan Han, M. N. Hagiwara, E. Stenlund, M. Jezghani, V. Singh, S. Huang, Timothy Thomas Rinn, H. J. Kim, Dylan Walker, R. Belmont, C. Vale, B. S. Chang, J. S. Bok, S. R. P. Mohapatra, T. Niida, E. O'Brien, Motoi Inaba, J. C. Hill, S. Dairaku, P. Liebing, T. Ichihara, N. S. Bandara, J. S. Kapustinsky, S. V. Afanasiev, H. Sakata, H. Sako, R. M. Wright, C. Zhang, A. Lebedev, A. Timilsina, Toshiki Maruyama, Christine Angela Aidala, J. Newby, O. Chvala, V. Babintsev, O. Zaudtke, M. Tomášek, M. Rosati, X. H. Li, Paul Constantin, Franz E. Bauer, T. Koblesky, M. Beaumier, M. Ouchida, S. Belikov, K. S. Joo, A. V. Kazantsev, Vladimir Samsonov, I. Otterlund, Christine Nattrass, A. Bazilevsky, K. Sakashita, Tamás Csörgő, A. D. Frawley, M. C. McCain, G. S. Kyle, N. Willis, N. Means, D. K. Mishra, P. Ružička, M. Virius, J. Asai, Manabu Togawa, V. S. Pantuev, Byung-Sik Hong, M. Sarsour, J. G. Lajoie, M. Grosse Perdekamp, J. G. Rubin, X. Bai, Y. Watanabe, L. Tomášek, G. R. Young, D. Kotov, J. Sun, M. Alfred, T. Hachiya, P. Mikeš, M. Sano, Agneta Oskarsson, S. Lee, J. Egdemir, Jennifer E. Perry, N. Apadula, M. E. Connors, Bruno Espagnon, H. W. Yu, Shingo Sakai, S. H. Aronson, S. K. Park, Viktor Riabov, Shoichi Hasegawa, J. D. Orjuela Koop, C. H. Chen, D. Mukhopadhyay, G. David, A. Vossen, Tomofumi Nagae, J. L. Nagle, L. Patel, S. Leckey, A. Shaver, A. Kravitz, Sung Keun Park, A. Taranenko, J. Hamblen, A. A. Vinogradov, D. M. Lee, Hiroaki Ohnishi, K. B. Lee, Henrik Tydesjö, S. P. Whitaker, A. Manion, S. H. Lee, Serpil Yalcin, G. H. Lee, Y. Cobigo, C. McKinney, S. Choi, P. Castera, A. Glenn, Hirohiko Sato, S. Yokkaichi, S. K. Tuli, J. M. Heuser, R. Petti, M. Mishra, Brennan Schaefer, S. Nagamiya, S. J. Jeon, Kazuhiro Tanaka, A. Soldatov, J. Bryslawskyj, Jiangyong Jia, Y. Goto, T. Horaguchi, Y. Sekiguchi, T. C. Awes, Kyoichiro Ozawa, T. Liška, Josh Moss, Aaron Angerami, D. Kawall, Jun Kikuchi, K. Tanida, N. N. Ajitanand, Vaclav Vrba, Klaus Johannes Reygers, Astrid Morreale, Jason Kamin, T. V. Moukhanova, S. Esumi, Eunja Kim, Kenjiro Miki, H. Obayashi, David Olle Rickard Silvermyr, Bruno Lenzi, Rui Wei, W. Holzmann, H. F. Hamilton, D. Sharma, E. Kistenev, Maya Hachiya Shimomura, V. I. Kochetkov, C. L. Woody, Vardan Khachatryan, A. Berdnikov, W. A. Zajc, Yu. Efremenko, M. Proissl, P. Rosnet, L. Ding, Dmitry Blau, S. Mioduszewski, M. Kofarago, D. Kleinjan, L. Xue, K. Fujiwara, R. Ichimiya, D. Winter, D. Yu Peressounko, Y. I. Makdisi, D. Roach, K. M. Kijima, P. Lichtenwalner, G. D. N. Perera, V. Baublis, Yuki Watanabe, Y. L. Yamaguchi, V. Cianciolo, Zvi Hirsh Citron, Dennis Perepelitsa, H. Harada, K. Hashimoto, S. P. Stoll, E. J. Desmond, Sergey Fokin, J. H. Kang, Y. Miyachi, A. Caringi, J. S. Haggerty, Takahiro Nakamura, Tae-Yeon Lee, S. R. Lee, A. Romana, Xingguo Li, Gerd Joachim Kunde, Martin Purschke, F. Gastineau, S. Mizuno, I. Shein, K. Okada, T. W. Jones, Petr Gallus, J. Hanks, M. B. Deaton, E. Vazquez-Zambrano, A. Nederlof, B. Sahlmueller, Y. Berdnikov, O. Dietzsch, A. Garishvili, A. Hadj Henni, I. Danchev, E. T. Atomssa, Gary Grim, H. Valle, K. Sedgwick, H. En'yo, I. V. Sourikova, Dipanwita Dutta, S. Batsouli, K. V. Dharmawardane, A. Rakotozafindrabe, Y. Tanaka, Susumu Oda, E. Mannel, T. K. Shea, J. L. Drachenberg, Alberto Baldisseri, Mihael Makek, C. Gal, M. J. Leitch, M. J. Kweon, Julia Velkovska, Y. S. Lai, D. Kotchetkov, Beomkyu Kim, M. Javani, T. Shohjoh, M. Kasai, Y. Tsuchimoto, Y. Iwanaga, S. S.E. Rosendahl, M. J. Tannenbaum, H. J. Moon, F. Staley, L. Baksay, Wei Xie, A. Deshpande, A. Durum, M. Moskowitz, I. E. Yushmanov, G. Bunce, R. Kitamura, Z. Fraenkel, B. K. Schmoll, J.-G. Park, N. Cronin, A. P.T. Palounek, E. Tennant, I. J. Choi, S. Rembeczki, B. Xia, R. K. Choudhury, D. Bucher, K. Yamaura, A. Meles, Osamu Jinnouchi, P. Steinberg, Matthew G. Reuter, Takahiro Fusayasu, I. D. Ojha, Alexander Malakhov, L. S. Zolin, W. J. Park, Christopher Rosen, P. D. Barnes, A. Yanovich, Z. Rowan, Tomoya Tsuji, M. Mendoza, M. L. Brooks, S. N. White, Deepa Thomas, H. Ge, K. Das, K. Nakano, K. B. Kim, W. E. Sondheim, K. Boyle, P. A. Rukoyatkin, D. Hornback, S. Y. Fung, A. Churyn, D. Danley, B. Meredith, Hongfang Liu, D. E. Fields, H. A. Torii, Toru Sugitate, L. D. Isenhower, D. Jouan, M. McCumber, A. K. Purwar, N. Riveli, François Fleuret, B. Forestier, M. Chiu, M. K. Mitrovski, C. A. Ogilvie, T. K. Hemmick, Bhawani Singh, B. J. Ramson, Yasuo Miake, K. DeBlasio, L. Kochenda, M. Issah, R. Pinson, Y. Akiba, Don McGlinchey, T. Kawagishi, S. Wolin, K. Watanabe, Christian Klein-Boesing, N. Kamihara, Aram Kim, F. Matathias, R. Armendariz, Byoungchoo Park, K. Shoji, Anand Kumar Dubey, C. Oakley, A. Drees, J. Kubart, S. Kanda, Yongsun Kim, P. W. Stankus, B. Kimelman, J. Midori, P. Montuenga, C. R. Cleven, I. Younus, C. Haegemann, Y. Inoue, Peter Christiansen, P. J. Kroon, T. Kempel, Y. Imazu, Steven E. Skutnik, T. O. S. Haseler, H. Qu, P. B. Diss, Hideki Hamagaki, K. Aoki, M. Vargyas, T. Todoroki, K. I. Hahn, A. Sexton, A. Kozlov, R. Seto, K. Haruna, B. Fadem, V. Dzhordzhadze, X. He, J. Zimamyi, O. O. Omiwade, Y. Aramaki, V. Peresedov, Robert Vertesi, J. Koster, H. Masui, A. A. Bickley, and A. Mwai
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Critical phenomena, Constituent quark, Kinetic energy, 01 natural sciences, Charged particle, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, Rapidity, Multiplicity (chemistry), Nuclear Experiment, 010306 general physics, Nucleon, Glauber
Abstract: Measurements of midrapidity charged particle multiplicity distributions, $dN_{\rm ch}/d\eta$, and midrapidity transverse-energy distributions, $dE_T/d\eta$, are presented for a variety of collision systems and energies. Included are distributions for Au$+$Au collisions at $\sqrt{s_{_{NN}}}=200$, 130, 62.4, 39, 27, 19.6, 14.5, and 7.7 GeV, Cu$+$Cu collisions at $\sqrt{s_{_{NN}}}=200$ and 62.4 GeV, Cu$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV, U$+$U collisions at $\sqrt{s_{_{NN}}}=193$ GeV, $d$$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV, $^{3}$He$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV, and $p$$+$$p$ collisions at $\sqrt{s_{_{NN}}}=200$ GeV. Centrality-dependent distributions at midrapidity are presented in terms of the number of nucleon participants, $N_{\rm part}$, and the number of constituent quark participants, $N_{q{\rm p}}$. For all $A$$+$$A$ collisions down to $\sqrt{s_{_{NN}}}=7.7$ GeV, it is observed that the midrapidity data are better described by scaling with $N_{q{\rm p}}$ than scaling with $N_{\rm part}$. Also presented are estimates of the Bjorken energy density, $\varepsilon_{\rm BJ}$, and the ratio of $dE_T/d\eta$ to $dN_{\rm ch}/d\eta$, the latter of which is seen to be constant as a function of centrality for all systems.
Published: 2016

24. Measurement of higher cumulants of net-charge multiplicity distributions inAu+Aucollisions atsNN=7.7–200GeV

Author: Alexander Milov, I. Nakagawa, R. Luechtenborg, Young-Ki Kim, T. Engelmore, N. Novitzky, O. Drapier, E. R. Kinney, D. P. Morrison, S. Campbell, C. Silvestre, B. H. Kang, S. Choi, S. Tarafdar, Sung Keun Park, Alice Mignerey, Marisilvia Donadelli, V. Bumazhnov, D. Black, Kenjiro Miki, N. N. Ajitanand, Bruno Lenzi, H. Al-Ta'Ani, Tatsuya Chujo, P. Rosnet, H. Asano, R. A. Soltz, L. D'Orazio, S. Miyasaka, Pawan Kumar Netrakanti, K. Fujiwara, M. Naglis, E. Kistenev, Eva Haslum, J. Alexander, Takao Sakaguchi, A. Sen, Takahiro Nakamura, C. L. Silva, D. H. Kim, Tomoya Tsuji, M. Mendoza, R. Tanabe, Y. L. Yamaguchi, H. A. Gustafsson, Frank Ellinghaus, K. Dehmelt, Jen-Chieh Peng, S. V. Afanasiev, H. Sako, S. R. P. Mohapatra, C. Zhang, L. Guo, Alexei Khanzadeev, Susumu Oda, K. V. Dharmawardane, J. M. Durham, J. H. Do, A. Nukariya, Martin Purschke, C. A. Aidala, E. Leitner, Shinichi Masumoto, A. D. Frawley, P. Ružička, D. Reynolds, H. Van Hecke, E. Stenlund, S. Huang, Viktor Riabov, A. Ster, J. Sun, S. N. White, Atsushi Takahara, Alberica Toia, A. Durum, Susumu Sato, K. A. Drees, Inkyu Park, Xiong Wang, Y. Ikeda, Y. Fukao, C. A. Ogilvie, Toshiki Maruyama, W. Holzmann, J. Newby, R. S. Towell, K. Yamaura, Dong Jo Kim, J. Rak, D. Kawall, K. Tanida, Aaron Angerami, T. Hester, Kisung Lee, Zvi Hirsh Citron, W. A. Zajc, T. K. Hemmick, Bhawani Singh, Y. Tanaka, E. Mannel, K. Das, I. Garishvili, F. Wei, D. Kotchetkov, Y. J. Kwon, K. Nakano, J. Klatsky, A. Meles, M. Gonin, V. Baublis, A. Denisov, Yuki Watanabe, V. Cianciolo, Sergey Fokin, Yasuo Miake, R. Akimoto, K. B. Kim, A. Veicht, J. B. Choi, A. Kiss, M. Javani, Johannes Peter Wessels, Maya Hachiya Shimomura, N. A. Sparks, W. E. Sondheim, Y. I. Makdisi, S. Baumgart, Masamichi Ishihara, Nagahiro Saito, Paul Constantin, J. Ide, Gerd Joachim Kunde, Henner Buesching, Barbara Jacak, I. Shein, Rushan Han, K. N. Barish, Hongfang Liu, D. E. Fields, C. Pinkenburg, A. Sukhanov, K. Kurita, Steve Edwards, M. Moskowitz, K. Boyle, P. A. Rukoyatkin, S. Solano, Minghui Liu, L. Kochenda, M. Issah, H. Pereira, H. J. Moon, L. Baksay, I. Tserruya, Animesh Datta, C. Y. Chi, R. S. Hollis, E. P. Hartouni, K. Sedgwick, T. V. Moukhanova, Mihael Makek, A. Isinhue, S. Bathe, Don McGlinchey, M. Stepanov, G. Roche, A. Yu. Semenov, N. Grau, A. Taranenko, X. Gong, J. S. Kang, S. Sano, Bum-Hoon Lee, D. Hornback, M. Heffner, Kenneth Francis Read, B. Meredith, M. McCumber, A. K. Purwar, V. Singh, T. Ichihara, Z. Fraenkel, N. Riveli, M. Grosse Perdekamp, M. Leitgab, N. Cronin, T. Niida, C. O. Kim, J. Seele, M. J. Tannenbaum, T. Horaguchi, H. Pei, M. I. Nagy, R. Pak, M. Kurosawa, Prakhar Garg, M. Wysocki, L. A. Linden Levy, A. Lebedev, D. Watanabe, K. Sakashita, Marcus Hohlmann, M. Sarsour, B. Bannier, D. Kotov, A. V. Kazantsev, Y. Watanabe, H. A. Torii, Motoi Inaba, J. C. Hill, M. L. Brooks, R. M. Wright, Mate Csanad, M. E. Connors, M. D. Malik, E. Vznuzdaev, E. Tennant, B. Love, B. Lewis, S. Kaneti, S. P. Sorensen, Toru Sugitate, A. Glenn, Kensuke Homma, S. K. Park, V. S. Pantuev, M. Chiu, Ajit Kumar Mohanty, M. Ouchida, T. A. Shibata, C. M. Camacho, R. K. Choudhury, Prashant Shukla, N. Means, S. Belikov, K. S. Joo, D. K. Mishra, Jason Kamin, T. Sato, Agneta Oskarsson, John Wood, R. Belmont, S. Yokkaichi, M. Sano, H. J. Kim, A. Iordanova, J. Murata, O. Chvala, L. Tomášek, S. F. Pate, Y. Berdnikov, E. Richardson, S. H. Lee, Y. Akiba, Eunja Kim, H. Obayashi, Vladimir Samsonov, Christine Nattrass, A. G. Litvinenko, S. Hayashi, J. Jin, Seong H. Kim, S. P. Stoll, François Fleuret, M. Nihashi, C. McKinney, M. Mishra, Dmitry Blau, Yu. Efremenko, S. Nagamiya, Ke. Nakamura, J. Hamblen, J. Bryslawskyj, I. Danchev, C. Baumann, S. Kametani, P. Mikeš, J. G. Lajoie, T. Hachiya, Vaclav Vrba, S. S.E. Rosendahl, N. Apadula, A. Kozlov, Klaus Johannes Reygers, Astrid Morreale, N. Crossette, H. Al-Bataineh, P. Steinberg, E. J. Desmond, J. H. Kang, Y. Miyachi, Takahiro Fusayasu, J. S. Haggerty, S. R. Lee, C. P. Singh, Rui Wei, K. Okada, J. A. Key, R. Seto, R. P. Pisani, G. Bunce, Beomkyu Kim, Wei Xie, B. M. Johnson, J.-G. Park, Filip Krizek, J. Hanks, L. Patel, B. Sahlmueller, A. Kravitz, K. B. Lee, H. En'yo, A. Deshpande, Alexander Malakhov, A. Vossen, E. Vazquez-Zambrano, B. Bassalleck, A. Isupov, A. Nederlof, M. J. Leitch, B. Fadem, M. Kawashima, J. Sziklai, T. C. Awes, Kyoichiro Ozawa, T. Liška, X. He, A. Rakotozafindrabe, R. Petti, S. Motschwiller, S. Esumi, D. Silvermyr, M. Proissl, D. Winter, L. S. Zolin, C. L. Woody, A. Berdnikov, M. Kasai, Y. Tsuchimoto, Brian Cole, I. J. Choi, Y. Aramaki, B. Xia, V. Peresedov, Robert Vertesi, D. Ivanishchev, Tadaaki Isobe, D. Sharma, D. Isenhower, L. Ding, D. Jouan, M. Konno, D. Roach, K. M. Kijima, W. J. Park, Christopher Rosen, D. Yu Peressounko, R. Ichimiya, V. Papavassiliou, Dennis Perepelitsa, Y. S. Lai, S. Wolin, A. Yanovich, P. Tarján, I. E. Yushmanov, T. Murakami, E. M. Takagui, J. Koster, B. Azmoun, Y. J. Mao, K. Hashimoto, Xingguo Li, A. Král, N. Kamihara, M. Slunečka, P. L. McGaughey, H. Masui, Tomofumi Nagae, Yuhei Morino, F. Matathias, J. L. Nagle, P. Castera, Y. Nakamiya, D. Lynch, A. A. Bickley, A. Mwai, Byoungchoo Park, A. Garishvili, A. Drees, Ralf Peter Averbeck, P. Kline, K. S. Lee, A. Dion, M. Skolnik, I. V. Sourikova, Hiromi Iinuma, P. Liebing, G. Baksay, S. Sawada, Senta Greene, J. Ying, A. Franz, E. O'Brien, Ryugo S. Hayano, Y. Riabov, J. T. Mitchell, Kenta Shigaki, M. Nguyen, R. Seidl, Vladislav Manko, P. Chung, A. S. Nyanin, Rachid Nouicer, A. N. Zelenski, M. S. Ryu, J. Imrek, C. Vale, Taku Gunji, H. Gong, F. Kajihara, A. Basye, S. Butsyk, S. Zhou, S. D. Rolnick, M. Rosati, Tamás Csörgő, M. Tomášek, A. A. Vinogradov, S. P. Whitaker, G. S. Kyle, Jiangyong Jia, Y. Goto, D. Kleinjan, O. Dietzsch, E. T. Atomssa, H. Valle, Dipanwita Dutta, C. Gal, Julia Velkovska, Byung-Sik Hong, A. Bazilevsky, K. S. Sim, Y. Gu, D. M. Lee, K. Kiriluk, R. Yang, X. Jiang, Torsten Dahms, K. Imai, B. Voas, K. O. Eyser, Y. Onuki, M. S. Daugherity, Eun Joo Kim, Ferdinando Giordano, Y. Komatsu, B. Komkov, Y. Imazu, R. Lacey, R. Granier de Cassagnac, Tsutomu Mibe, M. A. L. Leite, A. Adare, Charles Maguire, S. H. Lim, J. S. Kapustinsky, S. Taneja, H. Qu, V. Babintsev, K. Karatsu, Y. Hori, Anne Marie Sickles, H. Themann, K. Gainey, J. S. Bok, Hideki Hamagaki, K. Aoki, M. Vargyas, G. David, T. Todoroki, G. R. Young, K. I. Hahn, I. Ravinovich, K. Watanabe, K. Shoji, M. Bai, Yongsun Kim, P. W. Stankus, E. C. Aschenauer, J. Midori, I. Younus, Peter Christiansen, T. Kempel, Zhiying You, R. Bennett, T. L.T. Thomas, M. Finger, J. E. Frantz, Jongmin Lee, A. Enokizono, P. K. Khandai, A. Taketani, Priyanka Sett, D. S. Jumper, Makoto Oka, S. Dairaku, M. Virius, Manabu Togawa, C. H. Chen, and A. Manion
Subjects: Physics, 010308 nuclear & particles physics, Lattice field theory, Monte Carlo method, Multiplicity (mathematics), 01 natural sciences, Baryon, Nuclear physics, Pseudorapidity, 0103 physical sciences, Rapidity, 010306 general physics, Relativistic Heavy Ion Collider, Cumulant
Abstract: We report the measurement of cumulants (Cn,n = 1,...,4) of the net-charge distributions measured within pseudorapidity (|η| < 0.35) in Au + Au collis
Published: 2016

25. One-neutron removal from Ne29: Defining the lower limits of the island of inversion

Author: Naoki Fukuda, Takashi Nakamura, S. K. Kim, N. A. Orr, Toshiyuki Sumikama, T. Kubo, R. Barthelemy, Michael Famiano, Hiroyoshi Sakurai, K. Yoneda, T. Motobayashi, Yasuhiro Togano, Y. Satou, Yosuke Kondo, Satoshi Takeuchi, T. Sako, Masamichi Ishihara, G Lee, H. Takeda, R. Kanungo, Tsuyoshi Ohnishi, Hideaki Otsu, Masafumi Matsushita, H. Baba, Ryuki Tanaka, N. Kobayashi, J. A. Tostevin, Nori Aoi, Hyomin Lee, Naohito Inabe, Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), and Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)
Subjects: Physics, Isotope, 010308 nuclear & particles physics, Island of inversion, Parity (physics), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Full width at half maximum, 0103 physical sciences, Neutron, Atomic physics, 010306 general physics, Wave function, Ground state, Nucleon, Nuclear Experiment
Abstract: International audience; Background: Very neutron-rich isotopes, including Ne30−32, in the vicinity of N=20 are known to exhibit ground states dominated by fp-shell intruder configurations: the “island of inversion.” Systematics for the Ne-isotopic chain suggest that such configurations may be in strong competition with normal shell-model configurations in the ground state of Ne29.Purpose: A determination of the structure of Ne29 is thus important to delineate the extent of the island of inversion and better understand structural evolution in neutron-rich Ne isotopes. This is accomplished here through a combined investigation of nuclear and Coulomb-induced one-neutron removal reactions.Method: Cross sections for one-neutron removal on carbon and lead targets and the parallel momentum distribution of the Ne28 residues from the carbon target are measured at around 240 MeV/nucleon. The measurements are compared with reaction calculations combined with spectroscopic information from SDPF-M shell-model wave functions.Results: The deduced width of the inclusive parallel momentum distribution, 98(12) MeV/c (FWHM), suggests that the ground state of Ne29 has a spin parity of 3/2−. Detailed comparisons of the measured inclusive and partial cross sections of the two targets and the parallel momentum distribution of the carbon target with reaction calculations, combined with spectroscopic information from large-scale shell-model calculations, are all consistent with a 3/2− spin-parity assignment.Conclusions: The results indicate that Ne29 lies within the island of inversion and that the ground state of Ne29 is dominated by a Ne28(0+1)⊗2p3/2 neutron configuration. Combined with recently measured interaction cross sections, it is concluded that Ne29 may exhibit a moderately developed halo-like distribution.
Published: 2016

26. Interaction cross sections for Ne isotopes towards the island of inversion and halo structures of 29Ne and 31Ne

Author: I. Hachiuma, Hiroyuki Takeda, Tetsuaki Moriguchi, M. Nagashima, Yoko Ishibashi, Rui-Jiu Chen, Takuji Izumikawa, K. Yoshida, Yu-Gang Ma, H. Suzuki, Y. Yasuda, A. Yoshida, Takashi Ohtsubo, R. Watanabe, Hiroyoshi Sakurai, Masao Ohtake, Toshiyuki Kubo, M. Winkler, Takeshi Suda, Mattias Lantz, Y. Ohkuma, Masamichi Ishihara, Kensuke Kusaka, S. Takeuchi, Toshio Suzuki, Y. Miyashita, Kensaku Matsuta, Y. Shimbara, Yoshiyuki Yanagisawa, A. Ozawa, K. Namihira, Hans Geissel, D. Nagae, Sadao Momota, K. Tanaka, D. Nishimura, Tsuyoshi Ohnishi, Naoki Fukuda, Takayuki Yamaguchi, Deqing Fang, Nori Aoi, K. Yoshinaga, T. Kuboki, K. Ogawa, M. Fukuda, Mototsugu Mihara, M. Takechi, T. Sumikama, H. Ooishi, S. Suzuki, Daisuke Kameda, Naohito Inabe, and Y. Ito
Subjects: Physics, Nuclear and High Energy Physics, Island of inversion, Nuclear Theory, Sigma, Halo nucleus, Nuclear physics, Neutron, Nuclide, Halo, Nuclear drip line, Atomic physics, Nuclear Experiment, Nucleon
Abstract: Interaction cross sections (sigma(1)) for Me isotopes from the stability line to the vicinity of the neutron drip line have been measured at around 240 MeV/nucleon using BigRIPS at RIBF, RIKEN, The sigma(1) for Ne27-32 in every case exceed the systematic mass-number dependence of sigma(1) for stable nuclei, which can be explained by considering the nuclear deformation. In particular the sigma(1) for Ne-29 and Ne-31 are significantly greater than those of their neighboring nuclides. These enhancements of sigma(1) for Ne-29 and Ne-31 cannot be explained by a single-particle model calculation under the assumption that the valence neutron of Ne-29 (Ne-31) occupies the 0d(3/2) (0f(7/2)) orbital, as expected from the standard spherical shell ordering. The present data suggest an s dominant halo structure of Ne-29 and s- or p-orbital halo in Ne-31. (C) 2011 Elsevier B.V. All rights reserved.
Published: 2012

27. A study of the x4 model in the Tsallis nonextensive statistics

Author: Masamichi Ishihara
Subjects: Statistics and Probability, Physics, Mean field theory, Coupling strength, Quantum mechanics, Tsallis entropy, Tsallis statistics, Statistics, Inverse temperature, Statistical and Nonlinear Physics, Function (mathematics), Sign (mathematics), Dimensionless quantity
Abstract: The author studied the effects of the environment described by Tsallis statistics in quantum mechanics, when the deviation from Boltzmann–Gibbs (BG) statistics is small. The x 4 model was used and the squeeze angle caused by the difference between Tsallis and BG statistics was calculated perturbatively in the mean field approximation as a function of the dimensionless parameters: the inverse temperature β p and the coupling strength λ p . The author found that the effect of the deviation from BG statistics is relatively large at high temperature. The squeeze angle as a function of β p has a dip structure, and the dip is deeper with the increase of λ p . The sign of the angle as a function of β p changes. These facts indicate that the frequency is modulated by the difference between these statistics.
Published: 2012

28. Measurement of Unbound Excited States of 24O

Author: T. Sumikama, Hiroyoshi Sakurai, T. Motobayashi, Y. Satou, K. Yoneda, Nori Aoi, Franck Delaunay, Julien Gibelin, Satoshi Takeuchi, F. M. Marqués, K. Yoshinaga, Takashi Nakamura, S. Choi, Susumu Shimoura, T. Honda, Nobuo Tanaka, Kanenobu Tanaka, Y. Kawada, Y. Miyashita, Yosuke Kondo, Hideaki Otsu, Tao Zheng, N. A. Orr, S. Deguchi, Z. H. Li, Yasuhiro Togano, Masamichi Ishihara, Masafumi Matsushita, Toshio Kobayashi, Dóra Sohler, Z. X. Cao, Y. Nakayama, Nagao Kobayashi, K. Tshoo, H. C. Bhang, Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), and Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)
Subjects: Neutron-rich nuclei, Physics, 010308 nuclear & particles physics, Nuclear Theory, Nuclear structure, General Physics and Astronomy, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, 7. Clean energy, Isotopes of oxygen, Fragmentation (mass spectrometry), (p, Excited state, 0103 physical sciences, p ') reaction, Physics::Accelerator Physics, Invariant mass, Atomic physics, Nuclear Experiment, 010306 general physics, Magic number
Abstract: The unbound excited states of the most neutron-rich oxygen isotope, (24)O (Z = 8, N = 16), have been investigated using the (24)O(p,p')(24)O*-->(23)O+n reaction at RIKEN, where a 63 MeV/neuclon secondary beam of (24)O was produced in a Be production target by the projectile-like fragmentation of a 95 MeV/u (40)Ar primary beam. The first 2(+) excited state was observed in the invariant mass spectrum. This experiment; will give us a deeper understanding of the new magic number at N = 16 in the neutron-rich oxygen isotopes.
Published: 2011

29. 14Be(p,n)14B reaction at 69 MeV in inverse kinematics

Author: M. Kitayama, Satoshi Takeuchi, Yosuke Kondo, Y. Hashimoto, Y. Yanagisawa, Takashi Sugimoto, H. Otsu, Susumu Shimoura, Yasuhiro Togano, M. Tamaki, Masamichi Ishihara, N. Matsui, Hiroyoshi Sakurai, Tomoko Gomi, Takashi Kobayashi, M. Shinohara, Naoki Fukuda, T. Motobayashi, T. K. Onishi, Yohei Matsuda, Takashi Nakamura, N. Endo, T. Okumura, Y. Satou, Nori Aoi, S. Kawai, T. Nakabayashi, and Hooi Jin Ong
Subjects: Physics, Nuclear and High Energy Physics, Inverse kinematics, Neutron emission, Nuclear Theory, Momentum transfer, Kinematics, Invariant (physics), Nuclear physics, Invariant mass, Atomic physics, Nuclear Experiment, Nucleon, Excitation
Abstract: A Gamow–Teller (GT) transition from the drip-line nucleus 14Be to 14B was studied via the ( p , n ) reaction in inverse kinematics using a secondary 14Be beam at 69 MeV/nucleon. The invariant mass method is employed to reconstruct the energy spectrum. A peak is observed at an excitation energy of 1.27(2) MeV in 14B, together with bumps at 2.08 and 4.06(5) MeV. The observed forward peaking of the state at 1.27 MeV and a good description for the differential cross section, obtained with a DWBA calculation provide support for the 1 + assignment to this state. By extrapolating the cross section to zero momentum transfer the GT-transition strength is deduced. The value is found to compare well with that reported in a β-delayed neutron emission study.
Published: 2011

30. Low-lying intruder state of the unbound nucleus 13Be

Author: Y. Yanagisawa, M. Tamaki, Yohei Matsuda, T. Nakabayashi, Yosuke Kondo, Takuma Matsumoto, M. Kitayama, H. Otsu, Takashi Sugimoto, N. Endo, Satoshi Takeuchi, Y. Hashimoto, Hiroyoshi Sakurai, T. Motobayashi, Takashi Kobayashi, T. Okumura, Y. Satou, T. K. Onishi, Nori Aoi, M. Shinohara, S. Kawai, Hooi Jin Ong, Yasuhiro Togano, Takashi Nakamura, N. Matsui, Masamichi Ishihara, Tomoko Gomi, Susumu Shimoura, Kazuyuki Ogata, and Naoki Fukuda
Subjects: Physics, Nuclear and High Energy Physics, Nuclear Theory, Intruder state, medicine.anatomical_structure, Transverse momentum, medicine, Invariant mass, Neutron, Nuclear drip line, Atomic physics, Nuclear Experiment, Nucleus, Relative energy
Abstract: An experimental study for the unbound nucleus 13Be has been performed by means of the invariant mass method via the one-neutron removal reaction H 1 ( Be 14 , Be 12 + n ) . A resonance has been observed at 0.51(1) MeV in the relative energy ( E rel ) spectrum of the Be 12 + n system. The transverse momentum distribution of the Be 12 + n system as well as the resonance width of 0.45(3) MeV gives evidence for the p-wave nature of the resonance. A d-wave resonance has also been observed at 2.39(5) MeV in the E rel spectrum. The observation of the low-lying p-wave resonance indicates the disappearance of the N = 8 magicity in the vicinity of the neutron drip line region.
Published: 2010

31. Event-by-event mean ${p}_{{\rm{T}}}$ fluctuations and transverse size of color flux tube generated in p–p collisions at $\sqrt{s}$ = 0.90 TeV

Author: Masamichi Ishihara and Takeshi Osada
Subjects: Physics, Nuclear and High Energy Physics, Nuclear Theory, Flux tube, 010308 nuclear & particles physics, FOS: Physical sciences, Multiplicity (mathematics), 01 natural sciences, Measure (mathematics), Gluon, Nuclear Theory (nucl-th), High Energy Physics - Phenomenology, Transverse plane, High Energy Physics - Phenomenology (hep-ph), Quantum electrodynamics, 0103 physical sciences, Phenomenological model, Nuclear Experiment, 010306 general physics, Scaling, Event (particle physics)
Abstract: We propose a novel phenomenological model of mean transverse momentum fluctuations based on the Geometrical Scaling hypothesis. Bose-Einstein correlations between two gluons generated from an identical color flux tube are taken into account as a source of the fluctuation. We calculate an event-by-event fluctuation measure $\sqrt{C_m}/\langle p_{\rm T}\rangle$ and show that ALICE data observed at $\sqrt s=$0.90 TeV for $p$+$p$ collisions are reproduced. By fitting our model to the experimental data, we evaluate the transverse size of the color flux tube as a function of the multiplicity., 14 pages, 7 figures
Published: 2017

32. STUDY OF NEUTRON-RICH NUCLEI THROUGH STATIC ELECTROMAGNETIC MOMENTS

Author: Masamichi Ishihara, J. Murata, Koichiro Asahi, K. Kameda, H. Yoshimi, Y. Hasama, H. Ueno, M. Uchida, Daisuke Nagae, K. Suzuki, T. Nagatomo, S. Kagami, T. Sugimoto, Hirokazu Kawamura, K. Narita, N. Hatakeyama, Tsuyoshi Inoue, and K. Shimada
Subjects: Physics, Nuclear and High Energy Physics, Spin polarization, Projectile, Nuclear Theory, Nuclear structure, General Physics and Astronomy, Nuclear physics, Moment (physics), Nuclear magnetic moment, Neutron, Insensitive nuclei enhanced by polarization transfer, Atomic physics, Nuclear Experiment, Line (formation)
Abstract: Nuclear moment studies on nuclei situated far from the β-stability line, performed by taking advantage of the projectile fragmentation reaction, are reviewed. A method to produce spin polarization/alignment in the projectile fragments was developed and utilized for the β-NMR/NQR measurements. Several new findings in nuclear structure physics were obtained from the nuclear moment experiments done with these techniques.
Published: 2009

33. Novel materials for electronic device fabrication using ink-jet printing technology

Author: Masamichi Ishihara, Yasushi Kumashiro, Hideo Nakako, Maki Inada, Akira Izumi, and Kazunori Yamamoto
Subjects: Copper oxide, Fabrication, Materials science, Metallurgy, General Physics and Astronomy, chemistry.chemical_element, Surfaces and Interfaces, General Chemistry, Tungsten, Condensed Matter Physics, Copper, Surfaces, Coatings and Films, chemistry.chemical_compound, chemistry, Printed electronics, Conductive ink, Copper plating, Composite material, Electrical conductor
Abstract: Novel materials and a metallization technique for the printed electronics were studied. Insulator inks and conductive inks were investigated. For the conductive ink, the nano-sized copper particles were used as metallic sources. These particles were prepared from a copper complex by a laser irradiation process in the liquid phase. Nano-sized copper particles were consisted of a thin copper oxide layer and a metal copper core wrapped by the layer. The conductive ink showed good ink-jettability. In order to metallize the printed trace of the conductive ink on a substrate, the atomic hydrogen treatment was carried out. Atomic hydrogen was generated on a heated tungsten wire and carried on the substrate. The temperature of the substrate was up to 60 °C during the treatment. After the treatment, the conductivity of a copper trace was 3 μΩ cm. It was considered that printed wiring boards can be easily fabricated by employing the above materials.
Published: 2009

34. Photoproduction of J/ψ and of high mass e+e− in ultra-peripheral Au + Au collisions at sNN=200 GeV

Author: T. L. Thomas, R. Vértesi, Masamichi Ishihara, Kensuke Homma, J. M. Heuser, Ryugo S. Hayano, J. Gosset, M. Gonin, J. P. Sullivan, S. Chernichenko, Y. Riabov, Minghui Liu, Kenta Shigaki, H. Lim, K. Hasuko, B. Bassalleck, M. Nguyen, A. S. Nyanin, Hiroyuki Okada, K. Kurita, M. Heffner, Kenneth Francis Read, T. Ichihara, H. Pereira, J. Murata, J. Chiba, M. Konno, J. M. Burward-Hoy, Joakim Nystrand, Eva Haslum, P. Tarján, G. C. Mishra, E. J. Desmond, Takao Sakaguchi, M. Togawa, S. Kelly, V. Bumazhnov, M. P. Comets, J. Park, Y. J. Kwon, W. C. Smith, Florian Bauer, S. Bathe, S. Yokkaichi, N. N. Ajitanand, C. Klein-Boesing, Y. Tsuchimoto, A. D. Frawley, Robert F. Hobbs, M. Rosati, T. Tabaru, J. L. Drachenberg, Y. Berdnikov, I. E. Yushmanov, Eun-Hee Kim, S. Y. Fung, M. K. Lee, Takahiro Nakamura, Alexei Khanzadeev, I. Tserruya, T. V. Moukhanova, S. H. Aronson, Y. Akiba, S. Nagamiya, J. T. Mitchell, S. Kametani, Senta Greene, S. P. Sorensen, Yu. Efremenko, B. Komkov, Hans-Åke Gustafsson, A. A. Vinogradov, K. Das, Henrik Tydesjö, T. Shohjoh, A. Ster, W. Holzmann, Kazuhiro Tanaka, C. A. Ogilvie, Jiangyong Jia, Tadaaki Isobe, Vladislav Manko, Evert Anders Stenlund, Debashish Pal, V. Singh, J. S. Chai, Norio Saito, T. K. Hemmick, M. A. L. Leite, A. Durum, J. H. Kang, J. S. Haggerty, S. Sawada, E. P. Hartouni, A. Hadj Henni, J. Newby, G. Roche, Yasuo Miake, Maya Hachiya Shimomura, B. E. Norman, Y. Tanaka, A. Franz, Y. Goto, John Hill, H. A. Torii, L. Kochenda, Y. I. Makdisi, A. Romana, E. O'Brien, P. L. McGaughey, D. S. Brown, M. N. Hagiwara, Wei Xie, Shingo Sakai, C. L. Woody, S. Gadrat, Toru Sugitate, T. Kawagishi, B. Azmoun, J. G. Lajoie, T. Hachiya, David D'Enterria, R. A. Soltz, H. Borel, A. V. Kazantsev, C. Vale, Ingvar Otterlund, B. Espagnon, Klaus Johannes Reygers, Anders Nils Erik Oskarsson, I. J. Choi, Christine Angela Aidala, M. J. Tannenbaum, S. Batsouli, M. Grosse Perdekamp, V. Babintsev, L. D. Isenhower, Hiroaki Ohnishi, T. K. Shea, R. P. Pisani, A. Taranenko, D. Mukhopadhyay, M. J. Kweon, G. S. Kyle, François Fleuret, N. Kamihara, F. Matathias, R. Armendariz, O. Dietzsch, H. Valle, D. Bucher, N. Willis, D. E. Fields, I. V. Sourikova, Osamu Jinnouchi, Y. Le Bornec, B. V. Jacak, S. V. Afanasiev, L. Aphecetche, James Alexander, Matthew G. Reuter, A. Drees, T. C. Awes, Kyoichiro Ozawa, R. Averbeck, Byung-Sik Hong, Nikolay Tyurin, M. C. McCain, J. G. Boissevain, A. Bazilevsky, M. N. Wagner, Masashi Kaneta, B. Forestier, M. T. Bjorndal, I. D. Ojha, Alexander Malakhov, A. K. Purwar, Julia Velkovska, J. Egdemir, A. P.T. Palounek, H. Pei, M. Wysocki, D. Winter, D. Silvermyr, D. Yu Peressounko, P. Rosnet, Y. Fukao, Xingguo Li, Alexandre Lebedev, D. M. Lee, L. S. Zolin, C. Pinkenburg, Johannes Peter Wessels, M. Csanad, S. P. Stoll, W. J. Park, R. S. Towell, S. S.E. Rosendahl, G. Bunce, P. D. Barnes, A. Yanovich, M. Stepanov, Akio Kiyomichi, C. Zhang, Hirohiko Sato, A. Dion, M. Issah, S. F. Pate, D. Jouan, Margaret Harvey, V-N. Tram, S. N. White, N. Kurihara, M. D. Malik, E. Vznuzdaev, S. K. Tuli, Viktor Riabov, Motoi Inaba, M. G. Hur, C. Y. Chi, Charles Maguire, S. Leckey, C. R. Cleven, W. E. Sondheim, V. Papavassiliou, K. Boyle, P. A. Rukoyatkin, S. Belikov, K. S. Joo, W. A. Zajc, Josh Moss, J. E. Frantz, H. W. Van Hecke, V. Baublis, A. Denisov, V. Cianciolo, Jen-Chieh Peng, E. Kistenev, P. J. Kroon, Sergey Fokin, C. P. Singh, T. Horaguchi, B. M. Johnson, H. Harada, S. Esumi, A. Kiss, D. Sharma, A. Glenn, A. Taketani, Xiong Wang, Z. Conesa del Valle, K. S. Sim, Steven E. Skutnik, Henner Buesching, Dong Jo Kim, Martin Purschke, F. Gastineau, V. L. Rykov, T. Dahms, A. Isupov, C. Suire, H. Qu, D. Kotchetkov, Hideki Hamagaki, K. Aoki, G. David, Junji Tojo, Z. Fraenkel, Alexander Milov, N. Grau, J. Sziklai, K. Shoji, I. Ravinovich, O. Drapier, P. W. Stankus, E. R. Kinney, Brian Cole, D. P. Morrison, S. Campbell, V. E. Semenov, J. Zimányi, Tatsuya Chujo, Y. Nagata, H. Hiejima, S. S. Ryu, Saskia Mioduszewski, K. Imai, R. Bennett, Ahmed Al-Jamel, J. Jin, E. M. Takagui, O. Zaudtke, Jan Rak, R. Lacey, R. Granier de Cassagnac, Y. Cobigo, Anne Marie Sickles, G. R. Young, M. Naglis, C. L. Silva, V. S. Pantuev, Susumu Sato, S. Butsyk, Vladimir Samsonov, Tamas Ferenc Csorgo, K. Okada, J. L. Nagle, B. Sahlmueller, H. En'yo, P. Constantin, M. J. Leitch, F. Staley, A. Deshpande, Y. Watanabe, I. Younus, A. Soldatov, K. Tanida, V. I. Kochetkov, Gerd Joachim Kunde, I. Shein, X. He, O. O. Omiwade, V. Peresedov, H. Masui, A. K. Dubey, S. Takagi, K. N. Barish, Taku Gunji, F. Kajihara, H. Delagrange, A. Baldisseri, Y. S. Kim, T. E. Miller, A. Enokizono, M. Holmes, M. Chiu, T. A. Shibata, M. L. Brooks, D. Isenhower, Marie Germain, A. G. Litvinenko, A. Kozlov, R. Seto, K. Haruna, and V. Dzhordzhadze
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, 0103 physical sciences, High mass, High Energy Physics::Experiment, Neutron, Coulomb excitation, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider, 01 natural sciences
Abstract: We present the first measurement of photoproduction of J/psi and of two-photon production of high-mass e(+)e(-) pairs in electromagnetic (or ultra-peripheral) nucleus-nucleus interactions, using Au + Au data at root s(NN) = 200 GeV. The events are tagged with forward neutrons emitted following Coulomb excitation of one or both Au* nuclei. The event sample consists of 28 events with m(e+e-) > 2 GeV/c(2) with zero like-sign background. The measured cross sections at midrapidity of d sigma/dy (J/psi + Xn, y = 0) = 76 +/- 33 (stat) +/- 11 (syst) pb and d(2)sigma /dm dy (e(+) e(-) + Xn, y = 0) = 86 +/- 23(stat) +/- 16(syst) mu b/ (GeV/c(2)) for m(e+e-) epsilon vertical bar 2.0, 2.8 vertical bar GeV/c(2) have been compared and found to be consistent with models for photoproduction of J/psi and QED based calculations of two-photon production of e(+)e(-) pairs. (C) 2009 Elsevier B.V. All rights reserved.
Published: 2009

35. First lifetime measurement of 21+ state in 12Be

Author: Susumu Shimoura, H. Kawasaki, Takashi Kubo, Hironori Iwasaki, K. Yoneda, Hiroshi Watanabe, A. Gelberg, Hooi Jin Ong, H. Baba, N. Imai, Naoki Fukuda, K. Kurita, Shin'ichiro Michimasa, Zs. Fülöp, Tsuyoshi Ohnishi, Ken Ishikawa, Hiroyoshi Sakurai, T. Motobayashi, Masahiro Notani, Zs. Dombrádi, Nori Aoi, E. Kaneko, K. Demichi, Shuichi Takeuchi, Masamichi Ishihara, Tomoko Gomi, S. Kanno, M. Miura, Akito Saito, M. K. Suzuki, E. Takeshita, Toshiyuki Minemura, Z. Elekes, Takashi Nakamura, M. Tamaki, Yosuke Kondo, T. Kishida, H. Hasegawa, and Takashi Sugimoto
Subjects: Physics, Nuclear and High Energy Physics, Radioactive beam experiment, Proton, Attenuation, Inelastic scattering, Doppler-shift attenuation method, Reduced matrix element, Quadrupole, Neutron, Atomic physics, Nuclear Experiment, Nucleon, Ground state, Magic number (physics)
Abstract: The lifetime of the 2 1 + state at 2.1 MeV in 12Be has been measured using inelastic scattering of a 12Be beam at 43 MeV/nucleon with a gold target. Through the Doppler shift attenuation method, the mean-life of the 2 1 + state has been determined as 2.5 ± 0.7 (stat) ± 0.3 (syst) ps, which gives a B ( E 2 ; 2 1 + → 0 g.s. + ) value of 4.9 ± 1.3 ± 0.5 in Weisskopf units. The result shows a large quadrupole strength in the ground state transition, providing further evidence on the disappearance of the N = 8 magic number. The B ( E 2 ; 2 1 + → 0 g.s. + ) value together with the deformation length measured by proton inelastic scattering yields a neutron quadrupole matrix element two times larger than those for 14C and 16O.
Published: 2009

36. Measurement of the electric quadrupole moment of 32Al

Author: Hideki Ueno, Daisuke Nagae, Akihiro Yoshimi, K. Takase, M. Takemura, Y. Kobayashi, Hirozumi Watanabe, T. Arai, M. Uchida, Tsuyoshi Inoue, D. Kameda, Masamichi Ishihara, J. Murata, Koichiro Asahi, T. Haseyama, Hirokazu Kawamura, S. Suda, K. Shimada, and G. Kijima
Subjects: Physics, Coupling constant, Nuclear and High Energy Physics, Isotope, Island of inversion, Isotone, Nuclear Theory, Quadrupole, Atomic physics, Nuclear Experiment, Nucleon, Ground state, Single crystal
Abstract: The electric quadrupole moment Q for the ground state of 32Al has been measured using the β-NMR technique. Spin-polarized 32Al nuclei were obtained from the fragmentation of 40Ar projectiles at E / A = 95 MeV / nucleon , and were implanted in a single crystal α-Al2O3 stopper. The quadrupole moment was deduced from the measured quadrupole coupling constant. The obtained value, | Q ( Al g.s. 32 ) | = 24 ( 2 ) mb , is remarkably small as compared with other Al isotopes, but is well explained by shell model calculations within the sd shell. The present result indicates that 32Al has a normal sd-shell structure, in contrast to the neighboring N = 19 isotone 31Mg for which a strongly deformed intruder ground state has been reported to occur.
Published: 2007

37. [Untitled]

Author: Masamichi Ishihara and Akira Izumi
Subjects: Engineering drawing, Materials science, Face (geometry), Copper-wiring, Electrical and Electronic Engineering, DUAL (cognitive architecture)
Published: 2007

38. Centrality dependence of low-momentum direct-photon production inAu+Aucollisions atsNN=200 GeV

Author: A. G. Litvinenko, D. Kawall, K. N. Barish, S. Sano, A. Kozlov, R. Seto, M. L. Brooks, A. Deshpande, I. Danchev, X. He, Y. Aramaki, V. Peresedov, Robert Vertesi, J. Koster, Y. Fukao, H. Masui, A. A. Bickley, A. Veicht, M. Tomášek, T. Murakami, Maya Hachiya Shimomura, S. Dairaku, J. T. Mitchell, G. S. Kyle, M. Kurosawa, L. Guo, Alexei Khanzadeev, R. S. Hollis, Shinichi Masumoto, Jen-Chieh Peng, A. Sen, V. S. Pantuev, M. Sano, Y. I. Makdisi, R. A. Soltz, H. A. Gustafsson, T. Hester, M. Gonin, M. Grosse Perdekamp, S. Afanasiev, N. A. Sparks, K. S. Sim, Vladimir Samsonov, M. E. Connors, James Alexander, S. Baumgart, T. Todoroki, B. Lewis, C. Zhang, Tomoya Tsuji, M. Mendoza, S. N. White, A. Sukhanov, Y. Ikeda, S. Sawada, Masamichi Ishihara, R. Seidl, Vladislav Manko, M. Slunečka, A. Enokizono, D. Reynolds, K. Kurita, H. Pereira, Beomkyu Kim, O. Dietzsch, E. Stenlund, R. Averbeck, Byung-Sik Hong, Y. Tanaka, Hongfang Liu, P. Chung, Wei Xie, Minghui Liu, Y. Morino, R. Yang, P. Ružička, J. B. Choi, S. Belikov, E. Mannel, M. Virius, E. T. Atomssa, H. Valle, Dipak Kumar Mishra, A. Bazilevsky, D. E. Fields, K. Watanabe, J. Imrek, R. Akimoto, Dipanwita Dutta, Zvi Hirsh Citron, Inkyu Park, S. Taneja, M. J. Tannenbaum, M. Javani, B. V. Jacak, Peter Christiansen, A. Datta, C. O. Kim, K. Shoji, M. Heffner, C. Gal, H. Torii, K. Nakano, Xiong Wang, Tomofumi Nagae, Kenneth Francis Read, Julia Velkovska, K. B. Kim, R. Pak, H. Asano, J. L. Nagle, I. J. Choi, D. Winter, T. Ichihara, W. E. Sondheim, D. Ivanischev, J. Jin, K. Imai, P. Castera, P. W. Stankus, M. McCumber, C. H. Chen, M. Stepanov, E. Tennant, M. Rosati, Alexandre Lebedev, C. Pinkenburg, Viktor Riabov, C. Vale, D. Yu Peressounko, N. Grau, E. M. Takagui, Dong Jo Kim, Tamás Csörgő, N. Riveli, T. V. Moukhanova, P. Tarján, M. Leitgab, R. S. Towell, Ajit Kumar Mohanty, T. A. Shibata, C. L. Silva, A. Manion, K. Boyle, P. A. Rukoyatkin, K. Okada, K. Karatsu, A. Garishvili, T. Sato, H. J. Moon, L. Baksay, Alice Mignerey, L. D'Orazio, S. Miyasaka, G. Roche, C. Silvestre, I. Ravinovich, I. Garishvili, F. Wei, Y. Hori, Anne Marie Sickles, Tadaaki Isobe, J. Hanks, A. Yu. Semenov, Y. Nakamiya, D. Lynch, Y. Tsuchimoto, K. Gainey, D. M. Lee, A. A. Vinogradov, Kyeongpil Lee, Marisilvia Donadelli, V. Bumazhnov, B. Meredith, Charles Maguire, Sung Keun Park, Takao Sakaguchi, G. Baksay, Motoi Inaba, X. Bing, O. Chvala, J. S. Bok, P. L. McGaughey, D. Kotchetkov, N. N. Ajitanand, H. En'yo, M. Bai, A. Dion, M. I. Nagy, A. D. Frawley, Jiangyong Jia, Y. Goto, S. Choi, J. Ide, R. M. Wright, Seong H. Kim, John Hill, M. J. Leitch, S. Huang, E. C. Aschenauer, J. P. Wood, M. Sarsour, Mate Csanad, A. Iordanova, R. Tanabe, Johannes Peter Wessels, B. Sahlmueller, J. G. Lajoie, Takahiro Nakamura, G. R. Young, W. Holzmann, Alexander Milov, Hiromi Iinuma, C. Y. Chi, Y. J. Kim, Toru Sugitate, T. Hachiya, J. E. Frantz, D. McGlinchey, D. Kleinjan, K. V. Dharmawardane, S. Whitaker, K. Kiriluk, I. Nakagawa, H. Qu, Senta Greene, R. Luechtenborg, Young-Ki Kim, T. Engelmore, N. Novitzky, S. Yokkaichi, Kiyoshi Tanida, M. Nihashi, F. Matathias, A. Kravitz, Y. Onuki, Susumu Oda, O. Drapier, C. Baumann, S. Kametani, A. T. Basye, Kensuke Homma, E. Richardson, K. B. Lee, Y. J. Mao, A. Durum, M. S. Daugherity, B. Komkov, Rushan Han, C. P. Singh, D. Watanabe, Frank Ellinghaus, Dmitry Blau, Y. Miyachi, Jan Rak, Zhiying You, Hideki Hamagaki, K. Aoki, C. Nattrass, M. Vargyas, Martin Purschke, C. A. Aidala, P. Constantin, B. M. Johnson, M. D. Malik, R. Lacey, B. Fadem, E. Vznuzdaev, E. R. Kinney, Y. Watanabe, François Fleuret, R. P. Pisani, D. P. Morrison, E. Kistenev, Filip Krizek, R. Bennett, M. Kawashima, J. H. Kang, Atsushi Takahara, J. S. Haggerty, S. R. Lee, R. Granier de Cassagnac, A. Adare, E. O'Brien, D. Hornback, G. David, K. I. Hahn, L. Ding, K. A. Drees, A. Ster, R. J. Petti, A. Isupov, B. Bassalleck, M. Konno, S. Campbell, B. H. Kang, Y. J. Kwon, D. Isenhower, E. J. Desmond, D. Roach, K. M. Kijima, Norio Saito, Tsutomu Mibe, S. Bathe, H. Al-Ta'Ani, M. Finger, Tatsuya Chujo, I. Tserruya, J. Klatsky, S. Wolin, J. Sziklai, A. Toia, Agneta Oskarsson, Yu. Efremenko, J. Ying, A. Franz, M. Togawa, Takahiro Fusayasu, I. Younus, Jongmin Lee, J. Newby, Brian Cole, V. Singh, N. Kamihara, M. A. L. Leite, E. Vazquez-Zambrano, A. Nederlof, Y. Berdnikov, S. H. Lee, Y. Akiba, Y. S. Lai, M. Ouchida, Alexander Malakhov, N. Means, C. McKinney, M. Mishra, J. Park, S. Nagamiya, K. Das, E. P. Hartouni, Byoungchoo Park, J. S. Kang, S. H. Lim, Vaclav Vrba, Klaus Johannes Reygers, J. Sun, Rui Wei, D. Silvermyr, M. Naglis, M. Kasai, H. Pei, A. Drees, A. Taketani, A. Glenn, L. S. Zolin, T. L. Thomas, R. Belmont, C. M. Camacho, W. J. Park, J. S. Kapustinsky, A. Kiss, Eunja Kim, Christopher Rosen, Prashant Shukla, T. Kempel, Dong-Hun Kim, V. Babintsev, Aaron Angerami, S. Kaneti, I. E. Yushmanov, Eun-Hee Kim, Ryugo S. Hayano, Henner Buesching, Steve Edwards, A. Yanovich, Y. Riabov, Kenta Shigaki, M. Chiu, S. F. Pate, X. Jiang, M. Nguyen, Taku Gunji, H. Gong, J. Seele, C. A. Ogilvie, M. Soumya, X. Gong, Ke. Nakamura, A. S. Nyanin, T. K. Hemmick, Marcus Hohlmann, J. M. Durham, Yasuo Miake, Rachid Nouicer, A. N. Zelenski, M. Proissl, F. Kajihara, W. A. Zajc, Torsten Dahms, H. Themann, L. Kochenda, M. Issah, L. A. Linden Levy, H. J. Kim, C. L. Woody, A. Berdnikov, J. Murata, H. Al-Bataineh, P. Rosnet, V. Baublis, A. Taranenko, K. O. Eyser, A. K. Purwar, K. Fujiwara, Gerd Joachim Kunde, I. Shein, A. Denisov, Yuki Watanabe, K. Sakashita, D. Kotov, Y. L. Yamaguchi, A. V. Kazantsev, K. Sedgwick, V. Cianciolo, Y. Komatsu, Kazushi Miki, Mihael Makek, D. S. Jumper, E. Leitner, S. Butsyk, J. Hamblen, T. Horaguchi, Jason Kamin, I. V. Sourikova, Brajesh K. Singh, Sergey Fokin, S. P. Stoll, L. Tomášek, P. Mikeš, Soren Pontoppidan Sorensen, S. Motschwiller, H. W. Van Hecke, A. Morreale, S. S.E. Rosendahl, Z. Fraenkel, R. K. Choudhury, K. S. Joo, A. Rakotozafindrabe, N. Apadula, A. Vossen, S. Esumi, D. Sharma, R. Ichimiya, G. Bunce, S. Zhou, S. Tarafdar, D. Ivanishchev, B. Azmoun, L. Patel, A. Král, D. Jouan, V. Papavassiliou, T. C. Awes, Kyoichiro Ozawa, T. Liška, Eva Haslum, B. Lenzi, M. Oka, P. Kline, K. S. Lee, P. Liebing, S. D. Rolnick, Bum-Hoon Lee, M. Wysocki, B. Bannier, K. Yamaura, K. Hashimoto, Xingguo Li, and B. Love
Subjects: Physics, Nuclear and High Energy Physics, Range (particle radiation), Exponential distribution, Photon, 010308 nuclear & particles physics, Inverse, 01 natural sciences, Momentum, Nuclear physics, Yield (chemistry), 0103 physical sciences, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, 010306 general physics, Centrality, Scaling
Abstract: The PHENIX experiment at RHIC has measured the centrality dependence of the direct photon yield from Au+Au collisions at sNN−−−√=200 GeV down to pT=0.4 GeV/c. Photons are detected via photon conversions to e+e− pairs and an improved technique is applied that minimizes the systematic uncertainties that usually limit direct photon measurements, in particular at low pT. We find an excess of direct photons above the Ncoll-scaled yield measured in p+p collisions. This excess yield is well described by an exponential distribution with an inverse slope of about 240MeV/c in the pT range 0.6–2.0 GeV/c. While the shape of the pT distribution is independent of centrality within the experimental uncertainties, the yield increases rapidly with increasing centrality, scaling approximately with Nαpart, where α=1.38±0.03(stat)±0.07(syst).
Published: 2015

39. Measurement of Long-Range Angular Correlation and Quadrupole Anisotropy of Pions and (Anti)Protons in Centrald+AuCollisions atsNN=200GeV

Author: K. Sakashita, Atsushi Takahara, D. Kotov, K. A. Drees, Dmitry Blau, Taku Gunji, H. Gong, J. Seele, J. Hamblen, Jason Kamin, F. Kajihara, S. P. Stoll, E. J. Desmond, S. S.E. Rosendahl, Hongfang Liu, D. E. Fields, S. Butsyk, G. Bunce, K. Das, S. Tarafdar, P. L. McGaughey, Y. Fukao, S. Zhou, B. V. Jacak, S. D. Rolnick, E. Vazquez-Zambrano, Eva Haslum, T. Hester, M. Chiu, C. A. Ogilvie, M. Tomášek, T. K. Hemmick, J. M. Durham, Yasuo Miake, L. Kochenda, M. Issah, M. McCumber, D. Jouan, G. S. Kyle, A. V. Kazantsev, Ajit Kumar Mohanty, C. L. Silva, James Alexander, R. Averbeck, Byung-Sik Hong, T. Sato, L. Tomášek, J. Hanks, Peter Christiansen, Vladimir Samsonov, A. Bazilevsky, Byoungchoo Park, Takahiro Fusayasu, A. Datta, C. Oakley, A. Drees, Soren Pontoppidan Sorensen, D. Isenhower, G. Roche, M. Kasai, T. Kempel, N. Grau, F. Matathias, Alexandre Lebedev, V. S. Pantuev, A. Toia, S. Kaneti, K. N. Barish, T. L. Thomas, ShinIchi Esumi, D. Silvermyr, Sung Keun Park, Y. Tsuchimoto, D. M. Lee, L. Patel, Y. Iwanaga, N. N. Ajitanand, Y. J. Mao, W. J. Park, Kensuke Homma, E. Richardson, K. Fujiwara, M. Rosati, Ryugo S. Hayano, Tamás Csörgő, Christopher Rosen, T. C. Awes, Kyoichiro Ozawa, T. Liška, Jun Kikuchi, Motoi Inaba, R. M. Wright, Aaron Angerami, J. L. Nagle, Takahiro Nakamura, J. H. Kang, E. T. Atomssa, A. Taranenko, Kazushi Miki, T. Horaguchi, A. Enokizono, A. Yanovich, S. Sano, K. Watanabe, K. Shoji, J. S. Yoo, M. K. Dayananda, Y. Riabov, Kenta Shigaki, Brajesh K. Singh, I. E. Yushmanov, P. Chung, Maya Hachiya Shimomura, R. S. Hollis, D. John, P. Castera, Y. L. Yamaguchi, X. Jiang, A. Dion, M. I. Nagy, Johannes Peter Wessels, D. McGlinchey, J. S. Haggerty, S. R. Lee, W. A. Zajc, M. Wysocki, B. Bannier, E. J. Kim, Susumu Oda, K. Utsunomiya, A. Durum, A. Sukhanov, K. Kurita, H. Pereira, D. Hornback, B. Meredith, M. Nguyen, Masamichi Ishihara, Y. Morino, Inkyu Park, M. L. Brooks, A. S. Nyanin, Rachid Nouicer, K. Okada, A. N. Zelenski, K. S. Sim, T-A Shibata, C. Silvestre, V. Baublis, John Hill, P. W. Stankus, Xiong Wang, H. W. Van Hecke, A. Denisov, Yuki Watanabe, V. Cianciolo, T. Sodre, B. Bassalleck, K. Yamaura, M. Proissl, Jongmin Lee, T. Murakami, Minghui Liu, Z. Conesa del Valle, Y. I. Makdisi, B. Love, Dong Jo Kim, Marisilvia Donadelli, V. Bumazhnov, Beomkyu Kim, Sergey Fokin, Anders Nils Erik Oskarsson, Hiromi Iinuma, H. En'yo, M. Konno, M. Heffner, Jiangyong Jia, Y. Goto, M. J. Leitch, Toru Sugitate, A. Kiss, Kenneth Francis Read, T. Ichihara, S. W. Nam, R. Tanabe, R. Pak, Henner Buesching, Y. S. Lai, Senta Greene, R. Yang, Steve Edwards, B. Komkov, I. J. Choi, M. Ouchida, A. T. Basye, Hans-Åke Gustafsson, Martin Purschke, N. Means, X. Gong, Marcus Hohlmann, Tsutomu Mibe, D. Kawall, S. Sawada, B. Fadem, E. O'Brien, D. Kleinjan, S. Taneja, J. Ying, Evert Anders Stenlund, Alexander Milov, Y. Nakamiya, D. Lynch, M. A. L. Leite, A. Franz, I. Nakagawa, C. Harper, L. A. Linden Levy, H. H. Shim, K. R. Andrews, R. A. Soltz, Eric Appelt, Young-Ki Kim, C. A. Aidala, Y. J. Kwon, T. Engelmore, K. Imai, H. Qu, Rushan Han, R. Seto, Jason Newby, S. H. Lim, G. Baksay, S. Bathe, C. L. Woody, François Fleuret, Frank Ellinghaus, Hideki Hamagaki, K. Aoki, G. David, R. Belmont, J. S. Kapustinsky, M. Grosse Perdekamp, M. J. Tannenbaum, D. Watanabe, V. Babintsev, K. Karatsu, K. I. Hahn, M. D. Malik, M. E. Connors, S. H. Lee, Y. Akiba, C. McKinney, S. Yokkaichi, A. Caringi, J. E. Frantz, I. Danchev, J. Ben-Benjamin, A. Taketani, S. Nagamiya, Prashant Shukla, E. Vznuzdaev, X. He, E. R. Kinney, O. Chvala, Vaclav Vrba, Klaus Johannes Reygers, D. P. Morrison, H. Torii, Y. Hori, Anne Marie Sickles, M. Mendoza, S. N. White, D. S. Jumper, Rui Wei, S. Campbell, S. F. Pate, O. Dietzsch, J. S. Kang, Y. Aramaki, B. Sahlmueller, Y. Ikeda, Deepa Thomas, Ke. Nakamura, O. Drapier, Robert Vertesi, B. H. Kang, T. Dahms, I. V. Sourikova, H. Valle, J. S. Bok, T. Jones, J. Koster, Dipanwita Dutta, R. Akimoto, A. Kim, Zvi Hirsh Citron, D. Winter, H. Al-Bataineh, R. Armendariz, D. Yu Peressounko, S. Dairaku, L. Guo, Alexei Khanzadeev, C. Gal, Julia Velkovska, E. Tennant, S. Rembeczki, G. R. Young, K. Nakano, M. Gonin, C. Pinkenburg, J. T. Mitchell, H. Masui, J. G. Lajoie, W. E. Sondheim, D. Ivanischev, H. Al-Ta'Ani, Tatsuya Chujo, A. Veicht, R. Seidl, Y. Onuki, K. Boyle, J. B. Choi, Vladislav Manko, I. Tserruya, P. Ružička, S. Motschwiller, M. Slunečka, Yu. Efremenko, Jan Rak, R. Lacey, D. Broxmeyer, S. Belikov, R. Granier de Cassagnac, A. Adare, M. Virius, V. Papavassiliou, Manabu Togawa, V. Singh, A. Kravitz, Alice Mignerey, K. B. Lee, J. C. Peng, C. Vale, L. D'Orazio, A. Morreale, Viktor Riabov, C. H. Chen, Z. Fraenkel, Takao Sakaguchi, A. Manion, Y. Miyachi, Gary Grim, I. Ravinovich, J. H. Bhom, A. D. Frawley, M. Bai, Y-J Kim, S. Huang, E. C. Aschenauer, W. Holzmann, K. V. Dharmawardane, D. Roach, K. M. Kijima, T. V. Moukhanova, Zhiying You, R. Bennett, R. K. Choudhury, M. Kawashima, A. Glenn, M. Finger, K. Hashimoto, Xingguo Li, B. Azmoun, A. Král, M. Oka, P. Kline, K. S. Lee, P. Liebing, K. S. Joo, N. Apadula, H. Pei, A. Vossen, D. Sharma, M. Sarsour, Mate Csanad, A. Iordanova, R. Ichimiya, M. Nihashi, R. P. Pisani, M. Kurosawa, M. Savastio, J. Jin, E. M. Takagui, C. Baumann, C. P. Singh, B. M. Johnson, R. J. Petti, J. Sziklai, Brian Cole, Charles Maguire, R. S. Towell, Kiyoshi Tanida, I. Garishvili, F. Wei, E. Kistenev, P. Lichtenwalner, J. Sun, C. Y. Chi, Y. Tanaka, E. Mannel, M. Naglis, Nagahiro Saito, H. J. Moon, L. Baksay, A. Deshpande, Y. Watanabe, I. Younus, H. Themann, J. Murata, Gerd Joachim Kunde, I. Shein, and K. Sedgwick
Subjects: Physics, Range (particle radiation), Hadron, Elliptic flow, General Physics and Astronomy, Nuclear physics, Pion, Deuterium, Antiproton, Quadrupole, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, Anisotropy
Abstract: We present azimuthal angular correlations between charged hadrons and energy deposited in calorimeter towers in central d+Au and minimum bias p+p collisions at sqrt[s_{NN}]=200 GeV. The charged hadron is measured at midrapidity |η| 2.75 is observed in d+Au collisions. Using the event plane method applied to the Au-going energy distribution, we extract the anisotropy strength v_{2} for inclusive charged hadrons at midrapidity up to p_{T}=4.5 GeV/c. We also present the measurement of v_{2} for identified π^{±} and (anti)protons in central d+Au collisions, and observe a mass-ordering pattern similar to that seen in heavy-ion collisions. These results are compared with viscous hydrodynamic calculations and measurements from p+Pb at sqrt[s_{NN}]=5.02 TeV. The magnitude of the mass ordering in d+Au is found to be smaller than that in p+Pb collisions, which may indicate smaller radial flow in lower energy d+Au collisions.
Published: 2015

40. Search for dark photons from neutral meson decays inp+pandd+Aucollisions atsNN=200 GeV

Author: S. Dairaku, P. Rosnet, K. O. Eyser, A. K. Purwar, K. Fujiwara, O. Zaudtke, K. Watanabe, Takafumi Niida, J. Huang, K. Shoji, Marisilvia Donadelli, V. Bumazhnov, D. Black, M. Virius, E. T. Atomssa, J. S. Yoo, Ajit Kumar Mohanty, M. K. Dayananda, T. A. Shibata, C. L. Silva, Min Soo Kim, V. S. Pantuev, P. W. Stankus, Prakhar Garg, T. Sato, B. Bannier, S. Mizuno, Tadaaki Isobe, A. Sen, R. Tanabe, D. Layton, J. D. Orjuela Koop, C. H. Chen, H. Pei, S. Campbell, P. L. McGaughey, A. Manion, N. S. Bandara, S. Afanasiev, Charles Maguire, I. Tserruya, M. Jezghani, Yu. Efremenko, Kiyoshi Tanida, C. Nattrass, E. Kistenev, Y. Imazu, M. Chiu, P. Lichtenwalner, S. Beckman, J. Sun, M. Ouchida, H. W. Van Hecke, Y. Miyachi, A. Ster, N. Feege, G. Roche, D. Watanabe, M. D. Malik, E. Vznuzdaev, Y. J. Mao, W. C. Chang, D. Isenhower, A. Toia, T. Moon, L. Mašek, H. J. Kim, V. Singh, T. Murakami, Yi Gu, S. Hasegawa, K. S. Sim, K. Okada, Maya Hachiya Shimomura, R. S. Hollis, Y. I. Makdisi, N. Means, K. Kurita, J. Asai, M. Naglis, L. Ding, M. Kofarago, J. S. Haggerty, S. R. Lee, Rushan Han, Y. Tanaka, E. Mannel, Nagahiro Saito, B. Meredith, I. Ravinovich, H. J. Moon, L. Baksay, T. Koblesky, K. R. Andrews, R. A. Soltz, H. Borel, Y. Miake, H. Qu, A. Kiss, V. Dzhordzhadze, A. Hadj Henni, J. Bryslawskyj, C. Baumann, S. Kametani, S. Sawada, J. Ying, A. Franz, Henner Buesching, Steve Edwards, R. Yang, Masamichi Ishihara, Beomkyu Kim, Minghui Liu, M. Heffner, Wei Xie, Kenneth Francis Read, T. Ichihara, C. Harper, Shingo Sakai, D. J. Kim, H. Nakagomi, T. Hoshino, D. Roach, K. M. Kijima, Y. Fukao, B. Komkov, K. Utsunomiya, Hideki Hamagaki, K. Aoki, M. Bai, E. C. Aschenauer, M. Grosse Perdekamp, F. Giordano, M. E. Connors, M. S. Daugherity, C. P. Singh, H. En'yo, M. J. Leitch, A. Glenn, S. Taneja, X. Gong, Marcus Hohlmann, A. V. Kazantsev, G. David, Sung Keun Park, K. I. Hahn, K. Hashimoto, Tae-Yeon Lee, M. J. Tannenbaum, Vladimir Samsonov, I. J. Choi, B. Xia, S. K. Park, K. N. Barish, C. M. Camacho, R. S. Towell, B. M. Johnson, Prashant Shukla, Xingguo Li, J. L. Charvet, Dennis Perepelitsa, S. F. Pate, K. Imai, Tsutomu Mibe, L. Tomášek, T. Todoroki, Eunja Kim, L. A. Linden Levy, P. Mikeš, M. Towell, Atsushi Takahara, Soren Pontoppidan Sorensen, M. A. L. Leite, C. L. Woody, J. H. Do, Anders Nils Erik Oskarsson, A. Kim, A. Taranenko, Ke. Nakamura, A. Berdnikov, R. J. Petti, O. Drapier, A. Isupov, Inseok Yoon, Kazushi Miki, Zhiying You, R. Bennett, M. Kawashima, D. Sharma, B. K. Schmoll, H. Al-Bataineh, R. Armendariz, J. A. Key, K. Karatsu, L. Patel, K. A. Drees, Youngil Kwon, H. H. Shim, S. Bathe, Terry C Awes, L. Aphecetche, Christophe Pierre Suire, Alexander Milov, I. Nakagawa, D. Mukhopadhyay, E. Tennant, S. Rembeczki, P. Montuenga, Martin Purschke, N. N. Ajitanand, M. Vargyas, A. Caringi, H. Ozaki, Y. S. Lai, Young-Ki Kim, T. Hester, David Olle Rickard Silvermyr, J. Sziklai, S. H. Lim, S. J. Jeon, T. Horaguchi, Brajesh K. Singh, J. Ben-Benjamin, M. Finger, S. Motschwiller, Kyoichiro Ozawa, T. Liška, Yorito Yamaguchi, T. Engelmore, N. Novitzky, F. Staley, A. Dion, M. I. Nagy, Y. Berdnikov, Frank Ellinghaus, S. H. Lee, Y. Akiba, O. Chvala, H. Themann, Ju Hwan Kang, T. Jones, Petr Gallus, Jun Kikuchi, A. Yu. Semenov, J. L. Nagle, D. John, P. Castera, J. Gosset, Peter Christiansen, S. Sano, G. D. N. Perera, R. Belmont, Brian Cole, J. S. Kapustinsky, Y. Hori, Anne Marie Sickles, E. Joo, D. Ivanishchev, T. Sodre, Jongmin Lee, Seong H. Kim, V. Papavassiliou, Takahiro Nakamura, Johannes Peter Wessels, B. Schaefer, J. Klatsky, P. Chung, J. Imrek, T. Kempel, E. R. Kinney, Alice Mignerey, L. D'Orazio, D. P. Morrison, C. A. Ogilvie, V. Babintsev, D. Winter, S. Kaneti, T. K. Hemmick, S. Miyasaka, C. McKinney, J. M. Durham, M. Mishra, S. Nagamiya, J. Murata, I. V. Sourikova, D. McGlinchey, D. Yu Peressounko, P. Tarján, Vaclav Vrba, Klaus Johannes Reygers, I. Garishvili, F. Wei, X. Jiang, Hari Guragain, J. G. Lajoie, Pawan Kumar Netrakanti, J. S. Bok, D. Broxmeyer, A. Enokizono, Susumu Sato, B. H. Kang, V. E. Semenov, M. Alfred, T. Hachiya, S. Whitaker, Susumu Oda, Gerd Joachim Kunde, T. L. Thomas, Takao Sakaguchi, S. Tarafdar, H. Asano, Jennifer E. Perry, K. Das, I. Shein, E. P. Hartouni, C. Klein-Boesing, H. Al-Ta'Ani, Tatsuya Chujo, A. Kravitz, Jen-Chieh Peng, Rui Wei, A. Durum, Ryugo S. Hayano, A. Morreale, K. DeBlasio, L. Kochenda, M. Issah, Y. Riabov, T. Sumita, C. Y. Chi, Taku Gunji, H. Gong, J. Seele, Z. Fraenkel, G. R. Young, K. Sedgwick, M. Patel, F. Kajihara, A. D. Frawley, V. L. Rykov, T. Dahms, J. G. Rubin, Catherine Micaela Silvestre, Mihael Makek, D. Reynolds, A. Deshpande, Kenta Shigaki, S. Yokkaichi, V-N. Tram, N. Grau, K. Yamaura, M. Nguyen, A. Meles, R. Pinson, M. Leitgab, V. Khachatryan, M. Kurosawa, Hiroyuki Sako, Eva Haslum, B. Lenzi, A. J. Miller, S. Butsyk, S. Huang, A. Sukhanov, Inkyu Park, R. K. Choudhury, E. Stenlund, B. Azmoun, Senta Greene, Rachid Nouicer, A. N. Zelenski, M. Proissl, Motoi Inaba, Y. Onuki, S. W. Nam, M. Tomášek, G. S. Kyle, S. Zhou, W. Holzmann, H. Pereira, Xiong Wang, Z. Conesa del Valle, A. Král, M. J. Kweon, Y. Morino, Hongfang Liu, Y. Ikeda, Y. Watanabe, A. T. Basye, J. G. Boissevain, D. E. Fields, R. M. Wright, S. Wolin, M. Sarsour, Mate Csanad, A. Iordanova, James Alexander, J. S. Kang, Jan Rak, M. Savastio, A. Baldisseri, R. Averbeck, R. Lacey, S. D. Rolnick, B. V. Jacak, C. O. Kim, I. Younus, R. Akimoto, B. Fadem, E. O'Brien, S. Y. Han, R. Granier de Cassagnac, Byung-Sik Hong, A. Bazilevsky, M. Oka, N. Kamihara, J. Jin, A. Adare, M. Gonin, C. Pinkenburg, M. McCumber, R. Pak, A. Soldatov, M. Wysocki, P. Kline, K. S. Lee, E. M. Takagui, M. Nihashi, K. Dehmelt, Alexandre Lebedev, D. M. Lee, N. Riveli, X. He, M. Stepanov, K. B. Lee, Atsushi Taketani, P. Liebing, M. Beaumier, Byoungchoo Park, K. S. Joo, A. Rakotozafindrabe, N. Apadula, C. Oakley, A. Drees, David D'Enterria, A. Datta, J. Hanks, K. Kiriluk, R. P. Pisani, A. Vossen, R. Ichimiya, K. Sakashita, D. Kotov, D. S. Jumper, Y. Aramaki, J. Hamblen, Jason Kamin, V. Peresedov, S. P. Stoll, Robert Vertesi, S. S.E. Rosendahl, G. Bunce, A. Churyn, D. Jouan, J. Koster, S. Batsouli, H. Masui, A. K. Dubey, A. A. Bickley, A. Veicht, A. Mwai, B. Love, A. G. Litvinenko, A. Sexton, D. Kawall, A. Kozlov, R. Seto, K. Haruna, I. Danchev, O. Dietzsch, H. Valle, Dipanwita Dutta, C. Gal, Julia Velkovska, M. Rosati, Tamás Csörgő, A. A. Vinogradov, Jiangyong Jia, Y. Goto, D. Kleinjan, Eric Appelt, Takahiro Fusayasu, Alexander Malakhov, K. Kihara, ShinIchi Esumi, L. S. Zolin, W. J. Park, Christopher Rosen, P. D. Barnes, A. Yanovich, D. Hornback, John Hill, H. A. Torii, Toru Sugitate, François Fleuret, Z. Rowan, M. Mendoza, M. L. Brooks, S. N. White, Deepa Thomas, Zvi Hirsh Citron, H. Ge, K. Nakano, W. E. Sondheim, D. Ivanischev, K. Boyle, P. A. Rukoyatkin, J. T. Mitchell, R. Seidl, Vladislav Manko, M. Slunečka, L. Guo, Alexei Khanzadeev, S. Belikov, J. B. Choi, C. Vale, Dipak Kumar Mishra, D. H. Kim, B. S. Chang, A. Timilsina, Christine Angela Aidala, J. Klay, Alexander Nyanin, Y. Nakamiya, D. Lynch, G. Baksay, J. H. Bhom, T. V. Moukhanova, B. Sahlmueller, Y. J. Kim, F. Matathias, Kensuke Homma, E. Richardson, P. Constantin, S. Chernichenko, B. Bassalleck, M. Konno, Jason Newby, J. E. Frantz, Dmitry Blau, E. J. Desmond, M. Togawa, E. Vazquez-Zambrano, J. Park, M. Kasai, Y. Tsuchimoto, Y. Iwanaga, I. E. Yushmanov, Eun-Hee Kim, H. A. Gustafsson, C. Zhang, P. Ružička, Viktor Riabov, Gary Grim, K. V. Dharmawardane, H. Iinuma, A. P.T. Palounek, Serpil Yalcin, Aaron Angerami, W. A. Zajc, L. Xue, V. Baublis, A. Denisov, Yuki Watanabe, V. Cianciolo, Y. Tomita, Sergey Fokin, and P. Sett
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Gauge boson, Muon, Anomalous magnetic dipole moment, Meson, 010308 nuclear & particles physics, Dalitz plot, 01 natural sciences, 7. Clean energy, Dark photon, Standard Model, Nuclear physics, 0103 physical sciences, 010306 general physics, Relativistic Heavy Ion Collider
Abstract: The standard model (SM) of particle physics is spectacularly successful, yet the measured value of the muon anomalous magnetic moment (g−2)μ deviates from SM calculations by 3.6σ. Several theoretical models attribute this to the existence of a “dark photon,” an additional U(1) gauge boson, which is weakly coupled to ordinary photons. The PHENIX experiment at the Relativistic Heavy Ion Collider has searched for a dark photon, U, in π0,η→γe+e− decays and obtained upper limits of O(2×10−6) on U−γ mixing at 90% C.L. for the mass range 30
Published: 2015

41. Measurement ofΥ(1S+2S+3S)production inp+pand Au + Au collisions atsNN=200GeV

Author: V. S. Pantuev, M. Sano, H. Pei, Sung Keun Park, K. Okada, N. N. Ajitanand, H. J. Kim, H. En'yo, M. J. Leitch, L. Aphecetche, Takahiro Nakamura, A. Dion, S. Baumgart, Masamichi Ishihara, Johannes Peter Wessels, M. Sarsour, Mate Csanad, A. Iordanova, D. McGlinchey, M. I. Nagy, Takafumi Niida, D. Watanabe, Bum-Hoon Lee, Minghui Liu, A. Durum, Marisilvia Donadelli, V. Bumazhnov, J. L. Charvet, M. D. Malik, E. Vznuzdaev, M. Heffner, A. Yu. Semenov, Catherine Micaela Silvestre, A. Sukhanov, K. Kurita, H. Pereira, R. A. Soltz, H. Borel, K. V. Dharmawardane, B. Azmoun, A. Král, M. J. Kweon, K. Yamaura, Kenneth Francis Read, T. Ichihara, A. Hadj Henni, J. Gosset, K. Watanabe, M. Grosse Perdekamp, H. Liu, R. Tanabe, D. Layton, Y. Hori, Beomkyu Kim, C. O. Kim, M. Wysocki, K. Shoji, B. Bannier, Wei Xie, X. Jiang, M. E. Connors, K. A. Drees, A. Enokizono, R. Pak, K. B. Lee, P. Chung, Y. Miyachi, M. Oka, W. C. Chang, I. J. Choi, D. E. Fields, B. V. Jacak, J. Imrek, P. Kline, K. S. Lee, Maya Hachiya Shimomura, R. S. Hollis, H. Iinuma, P. W. Stankus, K. Sakashita, M. Nihashi, L. Ding, Rushan Han, Peter Christiansen, J. S. Kang, J. Klatsky, A. Datta, H. Asano, D. Roach, M. McCumber, Dmitry Blau, K. M. Kijima, T. Murakami, A. P.T. Palounek, H. Gong, J. Seele, D. Winter, D. Yu Peressounko, P. Liebing, Vladimir Samsonov, Christine Nattrass, N. Riveli, T. Todoroki, K. S. Joo, K. Hashimoto, P. L. McGaughey, J. Hanks, Charles Maguire, P. Tarján, Xingguo Li, S. Choi, Aaron Angerami, K. Das, E. P. Hartouni, David D'Enterria, S. Butsyk, K. O. Eyser, S. P. Sorensen, N. Apadula, M. Chiu, W. A. Zajc, O. Dietzsch, D. Kotov, A. K. Purwar, Kiyoshi Tanida, K. Fujiwara, X. Bing, O. Chvala, Tamas Ferenc Csorgo, H. Qu, H. Valle, Seong H. Kim, V. Baublis, S. Sawada, A. Denisov, V. Cianciolo, E. Kistenev, Y. Tomita, Tomofumi Nagae, J. L. Nagle, Dipanwita Dutta, P. Castera, S. Yokkaichi, J. Ying, A. Franz, S. Zhou, A. Baldisseri, S. D. Rolnick, Y. I. Makdisi, A. Vossen, R. P. Pisani, S. Esumi, A. V. Kazantsev, K. Aoki, M. Vargyas, Y. L. Yamaguchi, C. Gal, E. J. Desmond, G. David, Sergey Fokin, Julia Velkovska, K. I. Hahn, F. Kajihara, D. Sharma, Senta Greene, A. T. Basye, R. Ichimiya, D. S. Jumper, Tae-Yeon Lee, B. Komkov, Martin Purschke, Ajit Kumar Mohanty, C. A. Aidala, F. Fleuret, Norio Saito, Tsutomu Mibe, B. Fadem, E. O'Brien, C. M. Camacho, Prashant Shukla, M. Rosati, K. Ozawa, T. A. Shibata, C. L. Silva, T. Sato, S. F. Pate, A. Morreale, Z. Fraenkel, M. A. L. Leite, L. Tomášek, Ke. Nakamura, H. Al-Bataineh, Jason Kamin, M. Togawa, E. Vazquez-Zambrano, A. A. Vinogradov, R. K. Choudhury, Y. J. Mao, J. Sun, D. Isenhower, A. Toia, S. H. Lim, J. H. Kang, T. Kempel, S. Motschwiller, Dong-Hun Kim, D. Ivanishchev, H. A. Gustafsson, S. Kaneti, L. Mašek, R. Belmont, V. Papavassiliou, J. S. Kapustinsky, Jiangyong Jia, S. P. Stoll, Y. Fukao, V. Babintsev, S. Edwards, A. Nederlof, J. Park, Y. Goto, M. Tomášek, C. Zhang, G. S. Kyle, T. Hester, J. S. Haggerty, S. R. Lee, P. Ružička, James Alexander, R. Averbeck, Byung-Sik Hong, D. Kleinjan, Y. Komatsu, A. Bazilevsky, Philippe Rosnet, Viktor Riabov, L. Patel, Alexandre Lebedev, T. C. Awes, T. Liška, D. M. Lee, A. Rakotozafindrabe, K. Kiriluk, V-N. Tram, N. Grau, Y. S. Lai, H. W. Van Hecke, M. Kasai, S. S.E. Rosendahl, Jun Kikuchi, G. Bunce, Y. Ikeda, M. Leitgab, J. G. Boissevain, M. J. Tannenbaum, M. Gonin, Motoi Inaba, Y. Tanaka, E. Mannel, C. Pinkenburg, H. Torii, G. Roche, A. Churyn, D. Jouan, S. Bathe, M. Javani, Y. Aramaki, Agneta Oskarsson, I. E. Yushmanov, Eun-Hee Kim, Y. Berdnikov, L. Guo, Alexei Khanzadeev, S. H. Lee, Y. Akiba, E. Stenlund, S. Wolin, C. McKinney, M. Mishra, S. Nagamiya, S. X. Oda, N. Kamihara, Vaclav Vrba, Klaus Johannes Reygers, D. Mukhopadhyay, E. Tennant, S. Rembeczki, Rui Wei, J. B. Choi, Dipak Kumar Mishra, H. J. Moon, A. Kiss, L. Baksay, A. Deshpande, Byoungchoo Park, Henner Buesching, M. Kurosawa, A. Drees, Alice Mignerey, T. V. Moukhanova, Y. S. Watanabe, L. D'Orazio, S. Miyasaka, F. Matathias, R. Vértesi, X. Gong, Kensuke Homma, E. Richardson, B. Lewis, Marcus Hohlmann, P. Constantin, S. Chernichenko, B. Bassalleck, Jongmin Lee, M. Konno, Takao Sakaguchi, L. A. Linden Levy, R. Akimoto, P. Mikeš, C. A. Ogilvie, S. Masumoto, J. T. Mitchell, J. E. Frantz, R. Seidl, T. K. Hemmick, Vladislav Manko, J. M. Durham, C. Klein-Boesing, Yasuo Miake, J. Jin, A. Taketani, M. Slunečka, Y. Watanabe, E. M. Takagui, A. D. Frawley, T. Gunji, L. Kochenda, M. Issah, C. Baumann, S. Kametani, A. Takahara, V. L. Rykov, T. Dahms, M. S. Daugherity, C. P. Singh, S. Belikov, S. Huang, T. Isobe, B. M. Johnson, S. Dairaku, Filip Krizek, W. Holzmann, C. L. Woody, A. Berdnikov, O. Zaudtke, R. J. Petti, X. He, V. Peresedov, A. Isupov, C. Suire, I. Younus, J. Koster, C. Vale, S. Batsouli, J. Sziklai, H. Masui, M. Virius, E. T. Atomssa, A. K. Dubey, B. S. Chang, A. A. Bickley, A. Veicht, K. N. Barish, Brian Cole, R. S. Towell, J. Klay, C. H. Chen, A. Manion, I. Ravinovich, Y. Nakamiya, D. Lynch, I. Garishvili, M. Bai, G. Baksay, E. C. Aschenauer, F. Wei, Zhiying You, R. Bennett, A. Soldatov, R. Hayano, M. Finger, A. Garishvili, M. L. Brooks, B. Sahlmueller, B. Love, I. V. Sourikova, Y. J. Kim, T. L. Thomas, I. Tserruya, Yu. Efremenko, V. Singh, H. Hamagaki, C. Y. Chi, A. Glenn, A. G. Litvinenko, Eunja Kim, Takahiro Fusayasu, Alexander Milov, I. Nakagawa, Young-Ki Kim, T. Engelmore, N. Novitzky, Alexander Malakhov, M. Naglis, Frank Ellinghaus, D. Silvermyr, K. Karatsu, E. R. Kinney, D. P. Morrison, L. S. Zolin, S. Campbell, B. H. Kang, W. J. Park, A. Kozlov, Y. Riabov, V. E. Semenov, Anne Marie Sickles, P. D. Barnes, A. Yanovich, R. Seto, K. Haruna, H. Al-Ta'Ani, Tatsuya Chujo, Kenta Shigaki, Jen-Chieh Peng, M. Nguyen, M. Soumya, K. Gainey, D. Reynolds, Inkyu Park, Xiong Wang, B. Meredith, Dong Jo Kim, John Hill, J. S. Bok, D. Kotchetkov, A. S. Nyanin, Toru Sugitate, Y. Morino, Rachid Nouicer, A. N. Zelenski, M. Proissl, F. Staley, G. R. Young, D. Kawall, H. Themann, M. Mendoza, S. N. White, T. Tsuji, Zvi Hirsh Citron, Y. Onuki, K. Nakano, J. Murata, K. B. Kim, W. E. Sondheim, D. Ivanischev, Jan Rak, Gerd Joachim Kunde, K. Boyle, P. A. Rukoyatkin, I. Shein, R. Lacey, J. G. Lajoie, T. Hachiya, S. Whitaker, S. Afanasiev, A. Ster, A. Kravitz, R. Granier de Cassagnac, K. Sedgwick, J. Newby, M. Ouchida, Mihael Makek, A. Adare, N. Means, J. Asai, D. Hornback, Shingo Sakai, A. Taranenko, Kazushi Miki, T. Horaguchi, Brajesh K. Singh, K. S. Sim, V. Dzhordzhadze, M. Stepanov, Y. Kwon, R. Yang, S. Tarafdar, S. Taneja, Y. Tsuchimoto, K. Imai, Eva Haslum, B. Lenzi, O. Drapier, and A. Sen
Subjects: Scattering cross-section, Physics, Nuclear and High Energy Physics, Large Hadron Collider, 010308 nuclear & particles physics, Modification factor, 01 natural sciences, Luminosity, Nuclear physics, Yield (chemistry), 0103 physical sciences, High Energy Physics::Experiment, Atomic physics, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract: Measurements of bottomonium production in heavy-ion and p + p collisions at the Relativistic Heavy Ion Collider (RHIC) are presented. The inclusive yield of the three states, (1S + 2S + 3S), was measured in the PHENIX experiment via electron-positron decay pairs at midrapidity for Au + Au and p + p collisions at root sNN = 200 GeV. The (1S + 2S + 3S) -> e(+)e(-) differential cross section at midrapidity was found to be B(ee)d sigma/dy = 108 +/- 38 (stat) +/- 15 (syst) +/- 11 (luminosity) pb in p + p collisions. The nuclear modification factor in the 30% most central Au + Au collisions indicates a suppression of the total. state yield relative to the extrapolation from p + p collision data. The suppression is consistent with measurements made by STAR at RHIC and at higher energies by the CMS experiment at the Large Hadron Collider.
Published: 2015

42. Charged-pion cross sections and double-helicity asymmetries in polarizedp+pcollisions ats=200 GeV

Author: D. Roach, K. M. Kijima, K. Hashimoto, Xingguo Li, S. Kaneti, S. P. Sorensen, O. Chvala, J. G. Lajoie, A. Sukhanov, K. Kurita, H. Pereira, Y. Nakamiya, D. Lynch, R. Pak, M. Tomášek, Vladimir Samsonov, M. Rosati, Tamás Csörgő, G. S. Kyle, F. Fleuret, Prashant Shukla, Alice Mignerey, James Alexander, D. Hornback, B. Meredith, S. F. Pate, C. L. Woody, Mate Csanad, J. Newby, Atsushi Takahara, Byung-Sik Hong, B. Love, A. Bazilevsky, Ke. Nakamura, K. A. Drees, Martin Purschke, C. A. Aidala, H. A. Torii, L. D'Orazio, T. W. Jones, R. Armendariz, Aaron Angerami, Yuhei Morino, Jiangyong Jia, Y. Tanaka, Toru Sugitate, A. Kiss, Hongfang Liu, D. E. Fields, Jan Rak, Y. Goto, J. L. Nagle, D. John, P. Castera, R. Lacey, D. Broxmeyer, D. M. Lee, Masamichi Ishihara, W. A. Zajc, E. Mannel, Henner Buesching, M. Nihashi, M. McCumber, Minghui Liu, S. Motschwiller, Beomkyu Kim, R. Granier de Cassagnac, A. Adare, V. Baublis, I. V. Sourikova, Hiromi Iinuma, D. Kleinjan, V. Papavassiliou, Charles Maguire, C. Silvestre, A. Denisov, Yuki Watanabe, Eric Appelt, V. Cianciolo, X. Gong, Kenneth Francis Read, B. Komkov, Senta Greene, Takao Sakaguchi, T. Ichihara, R. K. Choudhury, R. Seto, K. S. Joo, R. S. Hollis, R. P. Pisani, H. J. Moon, N. N. Ajitanand, A. V. Kazantsev, L. A. Linden Levy, J. G. Rubin, A. T. Basye, Marisilvia Donadelli, V. Bumazhnov, Norio Saito, Sergey Fokin, N. Apadula, Tsutomu Mibe, X. He, M. A. L. Leite, A. Taranenko, L. Tomášek, Takahiro Nakamura, Agneta Oskarsson, Takahiro Fusayasu, H. H. Shim, Y. Aramaki, M. Ouchida, A. Vossen, R. Petti, A. D. Frawley, Robert Vertesi, T. Horaguchi, B. Fadem, N. Means, E. O'Brien, I. J. Choi, O. Dietzsch, Y. Fukao, S. Esumi, S. H. Lim, J. Koster, S. H. Lee, Y. Akiba, J. S. Yoo, C. McKinney, K. R. Andrews, A. Durum, L. Patel, R. Tanabe, Kenjiro Miki, S. Nagamiya, D. Sharma, R. Ichimiya, M. K. Dayananda, D. Silvermyr, T. Hester, E. Kistenev, Kensuke Homma, E. Richardson, C. Harper, R. Belmont, J. S. Kapustinsky, M. Grosse Perdekamp, H. Masui, M. Wysocki, B. Bannier, B. Azmoun, Y. J. Mao, V. Babintsev, F. Giordano, A. Král, J. Sun, T. C. Awes, Kyoichiro Ozawa, Vaclav Vrba, Klaus Johannes Reygers, Astrid Morreale, C. Gal, X. Jiang, Julia Velkovska, K. S. Sim, Barbara Jacak, T. Murakami, E. M. Takagui, Rui Wei, J. S. Bok, A. Yanovich, K. N. Barish, M. E. Connors, S. K. Park, Rushan Han, H. Pei, S. Tarafdar, H. A. Gustafsson, A. Datta, B. Bassalleck, Ryugo S. Hayano, M. Mendoza, P. Kline, R. Yang, K. S. Lee, S. Sano, S. N. White, Deepa Thomas, Y. Riabov, N. Grau, Kenta Shigaki, M. Konno, Eva Haslum, W. Holzmann, M. Nguyen, Y. L. Yamaguchi, M. Slunečka, P. L. McGaughey, O. Drapier, Maya Hachiya Shimomura, M. L. Brooks, Zvi Hirsh Citron, A. S. Nyanin, K. Imai, J. T. Mitchell, Motoi Inaba, J. C. Hill, K. Nakano, R. M. Wright, M. I. Nagy, M. Proissl, Rachid Nouicer, A. N. Zelenski, S. Taneja, R. Seidl, D. Winter, D. Yu Peressounko, Y. I. Makdisi, Viktor Riabov, D. Watanabe, K. Karatsu, Vladislav Manko, W. E. Sondheim, D. Ivanischev, J. Ben-Benjamin, S. Sawada, Y. Hori, Anne Marie Sickles, H. Themann, K. V. Dharmawardane, E. Vznuzdaev, J. Ying, A. Franz, K. Boyle, S. Dairaku, C. Vale, G. R. Young, M. J. Tannenbaum, M. Virius, E. T. Atomssa, E. Tennant, A. Dion, Manabu Togawa, Johannes Peter Wessels, C. H. Chen, A. Manion, T. Sodre, Jongmin Lee, A. Taketani, Makoto Oka, Byoungchoo Park, C. Oakley, A. Drees, Jen-Chieh Peng, J. E. Frantz, S. Bathe, Inkyu Park, M. Chiu, C. A. Ogilvie, Xiong Wang, T. K. Hemmick, Bhawani Singh, Z. Conesa del Valle, J. M. Durham, Yasuo Miake, Dong Jo Kim, L. Kochenda, M. Issah, Don McGlinchey, D. Kotov, Jason Kamin, S. P. Stoll, S. S.E. Rosendahl, G. Bunce, A. Veicht, D. Jouan, I. Tserruya, Yu. Efremenko, V. Singh, L. Guo, Alexei Khanzadeev, E. Stenlund, M. Sarsour, C. Baumann, Y. J. Kwon, A. Glenn, S. Huang, J. B. Choi, T. V. Moukhanova, Dmitry Blau, E. J. Desmond, J. Hanks, E. Vazquez-Zambrano, J. S. Kang, M. Kasai, Y. Tsuchimoto, Y. Iwanaga, I. E. Yushmanov, Eunja Kim, Alexander Milov, I. Nakagawa, Young-Ki Kim, T. Engelmore, C. P. Singh, V. S. Pantuev, B. M. Johnson, J. Hamblen, E. R. Kinney, D. P. Morrison, S. Campbell, B. H. Kang, K. Okada, H. Al-Ta'Ani, Tatsuya Chujo, B. Sahlmueller, H. En'yo, M. J. Leitch, A. Iordanova, J. Murata, K. Watanabe, K. Shoji, Yongsun Kim, P. W. Stankus, H. Qu, Hideki Hamagaki, K. Aoki, G. David, K. I. Hahn, J. Sziklai, Peter Christiansen, T. Kempel, Brian Cole, R. S. Towell, H. Van Hecke, I. Garishvili, Y. Ikeda, F. Wei, M. Gonin, R. Akimoto, C. Pinkenburg, G. Roche, C. Y. Chi, M. Kurosawa, A. Lebedev, M. Savastio, S. Yokkaichi, D. Kawall, K. Tanida, J. H. Kang, Y. Miyachi, J. S. Haggerty, S. R. Lee, K. Utsunomiya, Gerd Joachim Kunde, I. Shein, Y. S. Lai, K. Sedgwick, A. Deshpande, Y. Watanabe, I. Younus, R. A. Soltz, M. Naglis, A. Enokizono, C. L. Silva, Taku Gunji, S. Butsyk, S. Zhou, S. D. Rolnick, Ajit Kumar Mohanty, T. A. Shibata, T. Sato, D. Isenhower, I. Ravinovich, M. Bai, E. C. Aschenauer, Zhiying You, R. Bennett, M. Finger, and K. B. Lee
Subjects: Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, Nuclear Theory, Spin structure, Deep inelastic scattering, Helicity, Inelastic neutron scattering, Nuclear physics, Pion, High Energy Physics::Experiment, Nuclear Experiment, Nucleon, Relativistic Heavy Ion Collider
Abstract: We present midrapidity charged-pion invariant cross sections, the ratio of the pi(-) to pi(+) cross sections and the charge-separated double-spin asymmetries in polarized p + p collisions at root s = p + 200 GeV. While the cross section measurements are consistent within the errors of next-to-leading-order (NLO) perturbative quantum chromodynamics predictions (pQCD), the same calculations overestimate the ratio of the charged-pion cross sections. This discrepancy arises from the cancellation of the substantial systematic errors associated with the NLO-pQCD predictions in the ratio and highlights the constraints these data will place on flavor-dependent pion fragmentation functions. The charge-separated pion asymmetries presented here sample an x range of similar to 0.03-0.16 and provide unique information on the sign of the gluon-helicity distribution.
Published: 2015

43. Amplification Induced by White Noise

Author: Masamichi Ishihara
Subjects: Physics, Free particle, Statistical Mechanics (cond-mat.stat-mech), Physics and Astronomy (miscellaneous), Nuclear Theory, FOS: Physical sciences, Field (mathematics), White noise, Coupling (probability), Omega, Momentum, High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), Exponent, Nuclear Experiment, Condensed Matter - Statistical Mechanics, Energy (signal processing), Mathematical physics
Abstract: We investigate the amplification of the field induced by white noise. In the present study, we study a stochastic equation which has two parameters, the energy $\omega(\vec{k})$ of a free particle and the coupling strength $D$ between the field and white noise, where the quantity $\vec{k}$ represents the momentum of a free particle. This equation is reduced to the equation with one parameter $\alpha(\vec{k})$ which is defined as $\alpha(\vec{k}) = D (\omega(\vec{k}))^{-3/2}$. We obtain the expression of the exponent statistically averaged over the unit time and derive an approximate expression of it. In addition, the exponent is obtained numerically by solving the stochastic equation. We find that the amplification increases with $\alpha(\vec{k})$. This indicates that white noise can amplify the fields for soft modes if the mass $m$ of the field is sufficiently light and if the strength of the coupling between the field and white noise is sufficiently strong, when the energy $\omega(\vec{k})$ is equal to $\sqrt{m^{2} + \vec{k}^{2}}$. We show that the $\alpha(\vec{k})$ dependence of the exponent statistically averaged is qualitatively similar to that of the exponent obtained by solving the stochastic equation numerically, and that these two exponents for the small value of $\alpha(\vec{k})$ are quantitatively similar., Comment: 9 pages, 4 eps figures; Changed content
Published: 2006

44. Study of the 26Si(p,γ)27P reaction through Coulomb dissociation of 27P

Author: Hironori Iwasaki, H. Murakami, Satoshi Takeuchi, K. Demichi, Z. Elekes, Hidetada Baba, K. Kurita, S. Kanno, Susumu Shimoura, Y. Yanagisawa, Shigeru Kubono, Ken Ishikawa, Takashi Kubo, Naohito Iwasa, Zsolt Fülöp, Naoki Fukuda, Shinsuke Ota, Hiroyoshi Sakurai, T. Motobayashi, Yoshihide Higurashi, K. Ue, M. Miura, M. Kunibu, Shin'ichiro Michimasa, Toshiyuki Minemura, Tomoko Gomi, Masahiro Notani, K. Yoneda, Atsumasa Yoshida, Yoshiaki Ando, K. Yamada, U. Futakami, Takashi Sugimoto, M. Serata, Akito Saito, Nori Aoi, E. Takeshita, Takashi Nakamura, Masamichi Ishihara, Y. U. Matsuyama, N. Imai, Kazuo Ieki, Yasuhiro Togano, Yosuke Kondo, and H. Hasegawa
Subjects: Reaction rate, Physics, Nuclear and High Energy Physics, Excited state, Hadron, Gamma ray, Coulomb, Nuclear fusion, Atomic physics, Nucleon, Dissociation (chemistry)
Abstract: The Coulomb dissociation of 27P was studied experimentally using 27P beams at 57 MeV/nucleon with a lead target. The E2 gamma decay width of the first excited state in 27P was determined to be (2.8 ± 0.5) × 10−5 eV. The total (M1+E2)gamma decay width of the state, which is of astrophysical interest, is estimated by combining the experimental result and a shell model calculation. The reaction rate of 26Si(p, γ)27P is deduced from the estimated total gamma decay width. The astrophysical implication derived from estimated gamma decay width is discussed.
Published: 2006

45. Coulomb dissociation experiment for explosive hydrogen burning: study of the 22Mg(p, γ)23Al reaction

Author: Yosuke Kondo, N. Imai, Kazuo Ieki, Shin'ichiro Michimasa, K. Demichi, K. Ue, Shigeru Kubono, Yasuhiro Togano, Takashi Sugimoto, E. Takeshita, Yoshihide Higurashi, Z. Elekes, Takashi Nakamura, S. Kanno, Toshiyuki Minemura, Y. Yanagisawa, Nori Aoi, Yoshiaki Ando, Atsumasa Yoshida, Takashi Kubo, Susumu Shimoura, Ken Ishikawa, Tomoko Gomi, Hidetada Baba, Masamichi Ishihara, U. Futakami, A. Saito, K. Yoneda, Y. U. Matsuyama, Shinsuke Ota, Naoki Fukuda, H. Hasegawa, Hiroyoshi Sakurai, T. Motobayashi, Hironori Iwasaki, M. Kunibu, K. Yamada, M. Serata, Naohito Iwasa, Satoshi Takeuchi, H. Murakami, Masahiro Notani, Zs. Fülöp, M. Miura, and K. Kurita
Subjects: Physics, Nuclear and High Energy Physics, Hydrogen, chemistry, Explosive material, Excited state, Coulomb, Radiative transfer, chemistry.chemical_element, Atomic physics, Breakup, Dissociation (chemistry)
Abstract: By taking advantage of the high efficiency of the Coulomb dissociation method, we studied the stellar 22Mg(p, γ)23Al reaction. The radiative width Γγ of the first excited state in 23Al was determined by measuring the intermediate-energy 23Al → 22Mg + p breakup process with a lead target.
Published: 2005

46. Effects of White Noise on Parametric Resonance in 4 Theory

Author: Masamichi Ishihara
Subjects: Physics, High Energy Physics - Phenomenology (hep-ph), High Energy Physics - Theory (hep-th), Physics and Astronomy (miscellaneous), FOS: Physical sciences, General Relativity and Quantum Cosmology (gr-qc), White noise, State (functional analysis), Parametric oscillator, Lambda, Mathematical physics
Abstract: We investigate the effects of white noise on parametric resonance in $��^{4}$ theory. The potential $V(��)$ in this study is ${1/2} m^{2} ��^{2} + {1/3} g ��^{3} + {1/4} ��^{4}$. An Mathieu-like equation is derived and the derived equation is applied to a partially thermalized system. The magnitudes of the amplifications are extracted by solving the equations numerically for various values of parameters. It is found that the amplification is suppressed by white noise in almost all the cases. However, in some $g=0$ cases, the amplification with white noise is slightly stronger than that without white noise. In the $g=0$ cases, the fields are always amplified. The amplification is maximal at $k_{m} \neq 0$ in some $g=0$ cases. Contrarily, in the $g = {3 \sqrt{2 ��} m}/{2}$ cases, the fields for some finite modes are suppressed and the amplification is maximal at $k_{m} \sim 0$ when the amplification occurs. It is possible to distinguish by these differences whether the system is on the $g=0$ state or not., 9 pages, 23 encapsulated postscript figures Some sentences and typos are corrected
Published: 2005

47. Coulomb Dissociation of 23Al for the stellar 22Mg(p,γ)23Al reaction

Author: N. Imai, Kazuo Ieki, Shigeru Kubono, Yasuhiro Togano, M. Kunibu, Tomoko Gomi, E. Takeshita, Nori Aoi, A. Saito, Susumu Shimoura, Takashi Nakamura, Ken Ishikawa, H. Murakami, K. Yamada, H. Hasegawa, K. Demichi, Z. Elekes, Masamichi Ishihara, Zs. Fülöp, Y. U. Matsuyama, Takashi Kubo, Shinsuke Ota, Hiroyoshi Sakurai, M. Miura, T. Motobayashi, Naoki Fukuda, Masahiro Notani, K. Kurita, Yoshihide Higurashi, Toshiyuki Minemura, Naohito Iwasa, Yoshiaki Ando, Shin'ichiro Michimasa, Y. Yanagisawa, U. Futakami, K. Ue, M. Serata, Hironori Iwasaki, Hidetada Baba, Satoshi Takeuchi, Yosuke Kondo, K. Yoneda, S. Kanno, and Takashi Sugimoto
Subjects: Physics, Nuclear and High Energy Physics, Coulomb, Atomic physics, Dissociation (chemistry)
Published: 2005

48. Study of 26Si(p,γ)27P reaction using Coulomb dissociation method

Author: Shigeru Kubono, Hironori Iwasaki, M. Kunibu, Takashi Kubo, M. Serata, Satoshi Takeuchi, E. Takeshita, Yoshihide Higurashi, Hidetada Baba, Takashi Nakamura, Toshiyuki Minemura, Atsumasa Yoshida, Y. Yanagisawa, Naoki Fukuda, Akito Saito, Yoshiaki Ando, N. Imai, Kazuo Ieki, Masahiro Notani, U. Futakami, Ken Ishikawa, Zs. Fülöp, H. Murakami, Yasuhiro Togano, H. Hasegawa, Shin'ichiro Michimasa, Takashi Sugimoto, Masamichi Ishihara, Susumu Shimoura, Y. U. Matsuyama, K. Demichi, Naohito Iwasa, M. Miura, Nori Aoi, Yosuke Kondo, K. Kurita, Shinsuke Ota, Hiroyoshi Sakurai, T. Motobayashi, Tomoko Gomi, K. Yamada, Z. Elekes, K. Ue, K. Yoneda, and S. Kanno
Subjects: Physics, Nuclear and High Energy Physics, medicine.anatomical_structure, Excited state, Coulomb, Gamma ray, Mixing ratio, medicine, Atomic physics, Nucleon, Nucleus, Dissociation (chemistry)
Abstract: The Coulomb dissociation of 27 P was studied experimentally using 27 P beams at 57 MeV/nucleon with a lead target. The E2 gamma decay width of the first excited state in 27 P was extracted. Assuming the same E2/M1 mixing ratio as the one for the mirror nucleus 27 Mg, the gamma decay width of the state, which is of astrophysical interest, is estimated to be ten times smaller than the value calculated by J. A. Caggiano et al.
Published: 2005

49. Effects of Nonlinear Terms on Parametric Resonance in the 4 Model

Author: Masamichi Ishihara
Subjects: Physics, Nonlinear system, Physics and Astronomy (miscellaneous), Field (physics), Nonlinear resonance, Time evolution, Equations of motion, Motion (geometry), Statistical physics, Soft modes, Parametric oscillator
Abstract: We study the effects of the nonlinear terms in the equation of the motion for the condensate on parametric resonance in the λΦ 4 model. The cases of no expansion and one-dimensional expansion both with and without friction are treated. The equation for the fluctuation field (soft mode) is derived in the case that the condensate moves periodically around the bottom of the potential. We obtain expressions for the magnitudes of the amplifications (exponents) at a certain time and compare them with numerical results. We find that the fields are amplified in cases of weak friction and that the derived expressions of the exponents are useful to judge whether or not parametric resonance occurs in the time evolution of the system.
Published: 2004

50. The first excited state of 30Ne studied by proton inelastic scattering in reversed kinematics

Author: T. Mizoi, Takashi Sugimoto, K. Demichi, Naohito Iwasa, Naoki Fukuda, K. Yoneda, M. Kunibu, Susumu Shimoura, Masahiro Notani, Meiko Kurokawa, Hiroyoshi Sakurai, K. Ue, N. Aoi, T. Motobayashi, Hironori Iwasaki, Satoshi Takeuchi, Masamichi Ishihara, M. Serata, H. Hasegawa, Y. U. Matsuyama, Tomoko Gomi, Y. Yanagisawa, K. Yamada, E. Takeshita, Hidetada Baba, Takashi Nakamura, H. Akiyoshi, S. Kanno, Yoshihide Higurashi, Toshiyuki Minemura, Akito Saito, and Shin'ichiro Michimasa
Subjects: Physics, Nuclear and High Energy Physics, Proton, Island of inversion, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, Inelastic scattering, Inelastic neutron scattering, Excited state, Neutron, Atomic physics, Ground state, Nucleon, Nuclear Experiment, Beam (structure), Excitation
Abstract: The energy of the first excited state of the very neutron-rich nucleus 30 Ne was determined by proton inelastic scattering. A liquid hydrogen target was bombarded by a beam of radioactive 30 Ne at 48 MeV/nucleon, and energies of the de-excitation γ rays emitted from the excited 30 Ne were measured. The observed transition is likely to be the one from the first 2 + state to the ground state of 30 Ne. The excitation energy, 791(26) keV, is lower than that of 32 Mg, indicating enhancement of deformation as the neutron excess increases in the N =20 isotones. The results indicate that 30 Ne belongs to the ‘island of inversion’.
Published: 2003
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