Advanced

Inclusive cross section and double-helicity asymmetry for pi(0) production at midrapidity in p plus p collisions at root s=510 GeV

Adare, A.; Aidala, C.; Ajitanand, N. N.; Akiba, Y.; Akimoto, R.; Alexander, J.; Alfred, M.; Aoki, K.; Apadula, N. and Aramaki, Y., et al. (2016) In Physical Review D (Particles, Fields, Gravitation and Cosmology) 93(1).
Abstract
PHENIX measurements are presented for the cross section and double-helicity asymmetry (A(LL)) in inclusive pi(0) production at midrapidity from p + p collisions at root s = 510 GeV from data taken in 2012 and 2013 at the Relativistic Heavy Ion Collider. The next-to-leading-order perturbative-quantum-chromodynamics theory calculation is in excellent agreement with the presented cross section results. The calculation utilized parton-to-pion fragmentation functions from the recent DSS14 global analysis, which prefer a smaller gluon-to-pion fragmentation function. The pi(0)A(LL) results follow an increasingly positive asymmetry trend with p(T) and root s with respect to the predictions and are in excellent agreement with the latest global... (More)
PHENIX measurements are presented for the cross section and double-helicity asymmetry (A(LL)) in inclusive pi(0) production at midrapidity from p + p collisions at root s = 510 GeV from data taken in 2012 and 2013 at the Relativistic Heavy Ion Collider. The next-to-leading-order perturbative-quantum-chromodynamics theory calculation is in excellent agreement with the presented cross section results. The calculation utilized parton-to-pion fragmentation functions from the recent DSS14 global analysis, which prefer a smaller gluon-to-pion fragmentation function. The pi(0)A(LL) results follow an increasingly positive asymmetry trend with p(T) and root s with respect to the predictions and are in excellent agreement with the latest global analysis results. This analysis incorporated earlier results on pi(0) and jet A(LL) and suggested a positive contribution of gluon polarization to the spin of the proton Delta G for the gluon momentum fraction range x > 0.05. The data presented here extend to a currently unexplored region, down to x similar to 0.01, and thus provide additional constraints on the value of Delta G. (Less)
Please use this url to cite or link to this publication:
author
, et al. (More)
(Less)
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review D (Particles, Fields, Gravitation and Cosmology)
volume
93
issue
1
publisher
American Physical Society
external identifiers
  • wos:000367674200001
  • scopus:84955292171
ISSN
1550-2368
DOI
10.1103/PhysRevD.93.011501
language
English
LU publication?
yes
id
c496b5f6-e279-4c0d-9dd2-59787f4900d0 (old id 8760409)
date added to LUP
2016-02-29 08:11:36
date last changed
2017-07-23 03:14:18
@article{c496b5f6-e279-4c0d-9dd2-59787f4900d0,
  abstract     = {PHENIX measurements are presented for the cross section and double-helicity asymmetry (A(LL)) in inclusive pi(0) production at midrapidity from p + p collisions at root s = 510 GeV from data taken in 2012 and 2013 at the Relativistic Heavy Ion Collider. The next-to-leading-order perturbative-quantum-chromodynamics theory calculation is in excellent agreement with the presented cross section results. The calculation utilized parton-to-pion fragmentation functions from the recent DSS14 global analysis, which prefer a smaller gluon-to-pion fragmentation function. The pi(0)A(LL) results follow an increasingly positive asymmetry trend with p(T) and root s with respect to the predictions and are in excellent agreement with the latest global analysis results. This analysis incorporated earlier results on pi(0) and jet A(LL) and suggested a positive contribution of gluon polarization to the spin of the proton Delta G for the gluon momentum fraction range x > 0.05. The data presented here extend to a currently unexplored region, down to x similar to 0.01, and thus provide additional constraints on the value of Delta G.},
  articleno    = {011501},
  author       = {Adare, A. and Aidala, C. and Ajitanand, N. N. and Akiba, Y. and Akimoto, R. and Alexander, J. and Alfred, M. and Aoki, K. and Apadula, N. and Aramaki, Y. and Asano, H. and Atomssa, E. T. and Awes, T. C. and Azmoun, B. and Babintsev, V. and Bai, M. and Bai, X. and Bandara, N. S. and Bannier, B. and Barish, K. N. and Bathe, S. and Baublis, V. and Baumann, C. and Baumgart, S. and Bazilevsky, A. and Beaumier, M. and Beckman, S. and Belmont, R. and Berdnikov, A. and Berdnikov, Y. and Black, D. and Blau, D. S. and Bok, J. S. and Boyle, K. and Brooks, M. L. and Bryslawskyj, J. and Buesching, H. and Bumazhnov, V. and Butsyk, S. and Campbell, S. and Chen, C. -H. and Chi, C. Y. and Chiu, M. and Choi, I. J. and Choi, J. B. and Choi, S. and Christiansen, Peter and Chujo, T. and Cianciolo, V. and Citron, Z. and Cole, B. A. and Cronin, N. and Crossette, N. and Csanad, M. and Csoergo, T. and Danley, T. W. and Datta, A. and Daugherity, M. S. and David, G. and DeBlasio, K. and Dehmelt, K. and Denisov, A. and Deshpande, A. and Desmond, E. J. and Ding, L. and Dion, A. and Diss, P. B. and Do, J. H. and D'Orazio, L. and Drapier, O. and Drees, A. and Drees, K. A. and Durham, J. M. and Durum, A. and Engelmore, T. and Enokizono, A. and En'yo, H. and Esumi, S. and Eyser, K. O. and Fadem, B. and Feege, N. and Fields, D. E. and Finger, M. and Finger Jr., M. and Fleuret, F. and Fokin, S. L. and Frantz, J. E. and Franz, A. and Frawley, A. D. and Fukao, Y. and Fusayasu, T. and Gainey, K. and Gal, C. and Gallus, P. and Garg, P. and Garishvili, A. and Garishvili, I. and Ge, H. and Giordano, F. and Glenn, A. and Gong, X. and Gonin, M. and Goto, Y. and de Cassagnac, R. Granier and Grau, N. and Greene, S. V. and Perdekamp, M. Grosse and Gu, Y. and Gunji, T. and Guragain, H. and Hachiya, T. and Haggerty, J. S. and Hahn, K. I. and Hamagaki, H. and Hamilton, H. F. and Han, S. Y. and Hanks, J. and Hasegawa, S. and Haseler, T. O. S. and Hashimoto, K. and Hayano, R. and He, X. and Hemmick, T. K. and Hester, T. and Hill, J. C. and Hollis, R. S. and Homma, K. and Hong, B. and Hoshino, T. and Hotvedt, N. and Huang, J. and Huang, S. and Ichihara, T. and Ikeda, Y. and Imai, K. and Imazu, Y. and Inaba, M. and Iordanova, A. and Isenhower, D. and Isinhue, A. and Ivanishchev, D. and Jacak, B. V. and Jeon, S. J. and Jezghani, M. and Jia, J. and Jiang, X. and Johnson, B. M. and Joo, E. and Joo, K. S. and Jouan, D. and Jumper, D. S. and Kamin, J. and Kanda, S. and Kang, B. H. and Kang, J. H. and Kang, J. S. and Kapustinsky, J. and Kawall, D. and Kazantsev, A. V. and Key, J. A. and Khachatryan, V. and Khandai, P. K. and Khanzadeev, A. and Kihara, K. and Kijima, K. M. and Kim, C. and Kim, D. H. and Kim, D. J. and Kim, E. -J. and Kim, G. W. and Kim, H. -J. and Kim, M. and Kim, Y. -J. and Kim, Y. K. and Kimelman, B. and Kistenev, E. and Kitamura, R. and Klatsky, J. and Kleinjan, D. and Kline, P. and Koblesky, T. and Kofarago, M. and Komkov, B. and Koster, J. and Kotchetkov, D. and Kotov, D. and Krizek, F. and Kurita, K. and Kurosawa, M. and Kwon, Y. and Lacey, R. and Lai, Y. S. and Lajoie, J. G. and Lebedev, A. and Lee, D. M. and Lee, G. H. and Lee, J. and Lee, K. B. and Lee, K. S. and Lee, S. and Lee, S. H. and Leitch, M. J. and Leitgab, M. and Lewis, B. and Li, X. and Lim, S. H. and Liu, M. X. and Lynch, D. and Maguire, C. F. and Makdisi, Y. I. and Makek, M. and Manion, A. and Manko, V. I. and Mannel, E. and Maruyama, T. and McCumber, M. and McGaughey, P. L. and McGlinchey, D. and McKinney, C. and Meles, A. and Mendoza, M. and Meredith, B. and Miake, Y. and Mibe, T. and Mignerey, A. C. and Miller, A. J. and Milov, A. and Mishra, D. K. and Mitchell, J. T. and Miyasaka, S. and Mizuno, S. and Mohanty, A. K. and Mohapatra, S. and Montuenga, P. and Moon, T. and Morrison, D. P. and Moskowitz, M. and Moukhanova, T. V. and Murakami, T. and Murata, J. and Mwai, A. and Nagae, T. and Nagamiya, S. and Nagashima, K. and Nagle, J. L. and Nagy, M. I. and Nakagawa, I. and Nakagomi, H. and Nakamiya, Y. and Nakamura, K. R. and Nakamura, T. and Nakano, K. and Nattrass, C. and Netrakanti, P. K. and Nihashi, M. and Niida, T. and Nishimura, S. and Nouicer, R. and Novak, T. and Novitzky, N. and Nyanin, A. S. and O'Brien, E. and Ogilvie, C. A. and Oide, H. and Okada, K. and Koop, J. D. Orjuela and Osborn, J. D. and Oskarsson, Anders and Ozaki, H. and Ozawa, K. and Pak, R. and Pantuev, V. and Papavassiliou, V. and Park, I. H. and Park, J. S. and Park, S. and Park, S. K. and Pate, S. F. and Patel, L. and Patel, M. and Peng, J. -C. and Perepelitsa, D. V. and Perera, G. D. N. and Peressounko, D. Yu and Perry, J. and Petti, R. and Pinkenburg, C. and Pinson, R. and Pisani, R. P. and Purschke, M. L. and Qu, H. and Rak, J. and Ramson, B. J. and Ravinovich, I. and Read, K. F. and Reynolds, D. and Riabov, V. and Riabov, Y. and Richardson, E. and Rinn, T. and Riveli, N. and Roach, D. and Rolnick, S. D. and Rosati, M. and Rowan, Z. and Rubin, J. G. and Ryu, M. S. and Sahlmueller, B. and Saito, N. and Sakaguchi, T. and Sako, H. and Samsonov, V. and Sarsour, M. and Sato, S. and Sawada, S. and Schaefer, B. and Schmoll, B. K. and Sedgwick, K. and Seele, J. and Seidl, R. and Sekiguchi, Y. and Sen, A. and Seto, R. and Sett, P. and Sexton, A. and Sharma, D. and Shaver, A. and Shein, I. and Shibata, T. -A. and Shigaki, K. and Shimomura, M. and Shoji, K. and Shukla, P. and Sickles, A. and Silva, C. L. and Silvermyr, David and Singh, B. K. and Singh, C. P. and Singh, V. and Skolnik, M. and Slunecka, M. and Snowball, M. and Solano, S. and Soltz, R. A. and Sondheim, W. E. and Sorensen, S. P. and Sourikova, I. V. and Stankus, P. W. and Steinberg, P. and Stenlund, Evert and Stepanov, M. and Ster, A. and Stoll, S. P. and Stone, M. R. and Sugitate, T. and Sukhanov, A. and Sumita, T. and Sun, J. and Sziklai, J. and Takahara, A. and Taketani, A. and Tanaka, Y. and Tanida, K. and Tannenbaum, M. J. and Tarafdar, S. and Taranenko, A. and Tennant, E. and Tieulent, R. and Timilsina, A. and Todoroki, T. and Tomasek, M. and Torii, H. and Towell, C. L. and Towell, M. and Towell, R. and Towell, R. S. and Tserruya, I. and van Hecke, H. W. and Vargyas, M. and Vazquez-Zambrano, E. and Veicht, A. and Velkovska, J. and Vertesi, R. and Virius, M. and Vrba, V. and Vznuzdaev, E. and Wang, X. R. and Watanabe, D. and Watanabe, K. and Watanabe, Y. and Watanabe, Y. S. and Wei, F. and Whitaker, S. and White, A. S. and Wolin, S. and Woody, C. L. and Wysocki, M. and Xia, B. and Xue, L. and Yalcin, S. and Yamaguchi, Y. L. and Yanovich, A. and Yokkaichi, S. and Yoo, J. H. and Yoon, I. and You, Z. and Younus, I. and Yu, H. and Yushmanov, I. E. and Zajc, W. A. and Zelenski, A. and Zhou, S. and Zou, L.},
  issn         = {1550-2368},
  language     = {eng},
  number       = {1},
  publisher    = {American Physical Society},
  series       = {Physical Review D (Particles, Fields, Gravitation and Cosmology)},
  title        = {Inclusive cross section and double-helicity asymmetry for pi(0) production at midrapidity in p plus p collisions at root s=510 GeV},
  url          = {http://dx.doi.org/10.1103/PhysRevD.93.011501},
  volume       = {93},
  year         = {2016},
}