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Cross section and double helicity asymmetry for eta mesons and their comparison to pi(0) production in p plus p collisions at root s=200 GeV

Adare, A.; Afanasiev, S.; Aidala, C.; Ajitanand, N. N.; Akiba, Y.; Al-Bataineh, H.; Alexander, J.; Aoki, K.; Aphecetche, L. and Armendariz, R., et al. (2011) In Physical Review D (Particles, Fields, Gravitation and Cosmology) 83(3).
Abstract
Measurements of double-helicity asymmetries in inclusive hadron production in polarized p + p collisions are sensitive to helicity-dependent parton distribution functions, in particular, to the gluon helicity distribution, Delta g. This study focuses on the extraction of the double-helicity asymmetry in eta production ((p) over right arrow + (p) over right arrow -> eta + X), the eta cross section, and the eta/pi(0) cross section ratio. The cross section and ratio measurements provide essential input for the extraction of fragmentation functions that are needed to access the helicity-dependent parton distribution functions.
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Physical Review D (Particles, Fields, Gravitation and Cosmology)
volume
83
issue
3
publisher
American Physical Society
external identifiers
  • wos:000286883300002
  • scopus:79952301840
ISSN
1550-2368
DOI
10.1103/PhysRevD.83.032001
language
English
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yes
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bc7f0bcd-f630-4c81-b95b-890c98fbb2b8 (old id 1871561)
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2011-04-27 11:40:43
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@article{bc7f0bcd-f630-4c81-b95b-890c98fbb2b8,
  abstract     = {Measurements of double-helicity asymmetries in inclusive hadron production in polarized p + p collisions are sensitive to helicity-dependent parton distribution functions, in particular, to the gluon helicity distribution, Delta g. This study focuses on the extraction of the double-helicity asymmetry in eta production ((p) over right arrow + (p) over right arrow -> eta + X), the eta cross section, and the eta/pi(0) cross section ratio. The cross section and ratio measurements provide essential input for the extraction of fragmentation functions that are needed to access the helicity-dependent parton distribution functions.},
  author       = {Adare, A. and Afanasiev, S. and Aidala, C. and Ajitanand, N. N. and Akiba, Y. and Al-Bataineh, H. and Alexander, J. and Aoki, K. and Aphecetche, L. and Armendariz, R. and Aronson, S. H. and Asai, J. and Atomssa, E. T. and Averbeck, R. and Awes, T. C. and Azmoun, B. and Babintsev, V. and Bai, M. and Baksay, G. and Baksay, L. and Baldisseri, A. and Barish, K. N. and Barnes, P. D. and Bassalleck, B. and Basye, A. T. and Bathe, S. and Batsouli, S. and Baublis, V. and Baumann, C. and Bazilevsky, A. and Belikov, S. and Bennett, R. and Berdnikov, A. and Berdnikov, Y. and Bickley, A. A. and Boissevain, J. G. and Borel, H. and Boyle, K. and Brooks, M. L. and Buesching, H. and Bumazhnov, V. and Bunce, G. and Butsyk, S. and Camacho, C. M. and Campbell, S. and Chang, B. S. and Chang, W. C. and Charvet, J. -L. and Chernichenko, S. and Chiba, J. and Chi, C. Y. and Chiu, M. and Choi, I. J. and Choudhury, R. K. and Chujo, T. and Chung, P. and Churyn, A. and Cianciolo, V. and Citron, Z. and Cleven, C. R. and Cole, B. A. and Comets, M. P. and Constantin, P. and Csanad, M. and Csoergo, T. and Dahms, T. and Dairaku, S. and Das, K. and David, G. and Deaton, M. B. and Dehmelt, K. and Delagrange, H. and Denisov, A. and d'Enterria, D. and Deshpande, A. and Desmond, E. J. and Dietzsch, O. and Dion, A. and Donadelli, M. and Drapier, O. and Drees, A. and Drees, K. A. and Dubey, A. K. and Durum, A. and Dutta, D. and Dzhordzhadze, V. and Efremenko, Y. V. and Egdemir, J. and Ellinghaus, F. and Emam, W. S. and Engelmore, T. and Enokizono, A. and En'yo, H. and Esumi, S. and Eyser, K. O. and Fadem, B. and Fields, D. E. and Finger, M., Jr. and Finger, M. and Fleuret, F. and Fokin, S. L. and Fraenkel, Z. and Frantz, J. E. and Franz, A. and Frawley, A. D. and Fujiwara, K. and Fukao, Y. and Fusayasu, T. and Gadrat, S. and Garishvili, I. and Glenn, A. and Gong, H. and Gonin, M. and Gosset, J. and Goto, Y. and de Cassagnac, R. Granier and Grau, N. and Greene, S. V. and Perdekamp, M. Grosse and Gunji, T. and Gustafsson, Hans-Åke and Hachiya, T. and Henni, A. Hadj and Haegemann, C. and Haggerty, J. S. and Hamagaki, H. and Han, R. and Harada, H. and Hartouni, E. P. and Haruna, K. and Haslum, Eva and Hayano, R. and Heffner, M. and Hemmick, T. K. and Hester, T. and He, X. and Hiejima, H. and Hill, J. C. and Hobbs, R. and Hohlmann, M. and Holzmann, W. and Homma, K. and Hong, B. and Horaguchi, T. and Hornback, D. and Huang, S. and Ichihara, T. and Ichimiya, R. and Iinuma, H. and Ikeda, Y. and Imai, K. and Imrek, J. and Inaba, M. and Inoue, Y. and Isenhower, D. and Isenhower, L. and Ishihara, M. and Isobe, T. and Issah, M. and Isupov, A. and Ivanischev, D. and Jacak, B. V. and Jia, J. and Jin, J. and Jinnouchi, O. and Johnson, B. M. and Joo, K. S. and Jouan, D. and Kajihara, F. and Kametani, S. and Kamihara, N. and Kamin, J. and Kaneta, M. and Kang, J. H. and Kanou, H. and Kapustinsky, J. and Kawall, D. and Kazantsev, A. V. and Kempel, T. and Khanzadeev, A. and Kijima, K. M. and Kikuchi, J. and Kim, B. I. and Kim, D. H. and Kim, D. J. and Kim, E. and Kim, S. H. and Kinney, E. and Kiriluk, K. and Kiss, A. and Kistenev, E. and Kiyomichi, A. and Klay, J. and Klein-Boesing, C. and Kochenda, L. and Kochetkov, V. and Komkov, B. and Konno, M. and Koster, J. and Kotchetkov, D. and Kozlov, A. and Kral, A. and Kravitz, A. and Kubart, J. and Kunde, G. J. and Kurihara, N. and Kurita, K. and Kurosawa, M. and Kweon, M. J. and Kwon, Y. and Kyle, G. S. and Lacey, R. and Lai, Y. S. and Lajoie, J. G. and Layton, D. and Lebedev, A. and Lee, D. M. and Lee, K. B. and Lee, M. K. and Lee, T. and Leitch, M. J. and Leite, M. A. L. and Lenzi, B. and Liebing, P. and Liska, T. and Litvinenko, A. and Liu, H. and Liu, M. X. and Li, X. and Love, B. and Lynch, D. and Maguire, C. F. and Makdisi, Y. I. and Malakhov, A. and Malik, M. D. and Manko, V. I. and Mannel, E. and Mao, Y. and Masek, L. and Masui, H. and Matathias, F. and McCumber, M. and McGaughey, P. L. and Means, N. and Meredith, B. and Miake, Y. and Mikes, P. and Miki, K. and Miller, T. E. and Milov, A. and Mioduszewski, S. and Mishra, M. and Mitchell, J. T. and Mitrovski, M. and Mohanty, A. K. and Morino, Y. and Morreale, A. and Morrison, D. P. and Moukhanova, T. V. and Mukhopadhyay, D. and Murata, J. and Nagamiya, S. and Nagata, Y. and Nagle, J. L. and Naglis, M. and Nagy, M. I. and Nakagawa, I. and Nakamiya, Y. and Nakamura, T. and Nakano, K. and Newby, J. and Nguyen, M. and Niita, T. and Norman, B. E. and Nouicer, R. and Nyanin, A. S. and O'Brien, E. and Oda, S. X. and Ogilvie, C. A. and Ohnishi, H. and Okada, K. and Oka, M. and Omiwade, O. O. and Onuki, Y. and Oskarsson, Anders and Ouchida, M. and Ozawa, K. and Pak, R. and Pal, D. and Palounek, A. P. T. and Pantuev, V. and Papavassiliou, V. and Park, J. and Park, W. J. and Pate, S. F. and Pei, H. and Peng, J. -C. and Pereira, H. and Peresedov, V. and Peressounko, D. Yu and Pinkenburg, C. and Purschke, M. L. and Purwar, A. K. and Qu, H. and Rak, J. and Rakotozafindrabe, A. and Ravinovich, I. and Read, K. F. and Rembeczki, S. and Reuter, M. and Reygers, K. and Riabov, V. and Riabov, Y. and Roach, D. and Roche, G. and Rolnick, S. D. and Romana, A. and Rosati, M. and Rosendahl, Sarah and Rosnet, P. and Rukoyatkin, P. and Ruzicka, P. and Rykov, V. L. and Sahlmueller, B. and Saito, N. and Sakaguchi, T. and Sakai, S. and Sakashita, K. and Sakata, H. and Samsonov, V. and Sato, S. and Sato, T. and Sawada, S. and Sedgwick, K. and Seele, J. and Seidl, R. and Semenov, A. Yu and Semenov, V. and Seto, R. and Sharma, D. and Shein, I. and Shevel, A. and Shibata, T. -A. and Shigaki, K. and Shimomura, M. and Shoji, K. and Shukla, P. and Sickles, A. and Silva, C. L. and Silvermyr, D. and Silvestre, C. and Sim, K. S. and Singh, B. K. and Singh, C. P. and Singh, V. and Skutnik, S. and Slunecka, M. and Soldatov, A. and Soltz, R. A. and Sondheim, W. E. and Sorensen, S. P. and Sourikova, I. V. and Staley, F. and Stankus, P. W. and Stenlund, Evert and Stepanov, M. and Ster, A. and Stoll, S. P. and Sugitate, T. and Suire, C. and Sukhanov, A. and Sziklai, J. and Tabaru, T. and Takagi, S. and Takagui, E. M. and Taketani, A. and Tanabe, R. and Tanaka, Y. and Taneja, S. and Tanida, K. and Tannenbaum, M. J. and Taranenko, A. and Tarjan, P. and Themann, H. and Thomas, T. L. and Togawa, M. and Toia, A. and Tojo, J. and Tomasek, L. and Tomita, Y. and Torii, H. and Towell, R. S. and Tram, V-N. and Tserruya, I. and Tsuchimoto, Y. and Vale, C. and Valle, H. and van Hecke, H. W. and Veicht, A. and Velkovska, J. and Vertesi, R. and Vinogradov, A. A. and Virius, M. and Vrba, V. and Vznuzdaev, E. and Wagner, M. and Walker, D. and Wang, X. R. and Watanabe, Y. and Wei, F. and Wessels, J. and White, S. N. and Winter, D. and Woody, C. L. and Wysocki, M. and Xie, W. and Yamaguchi, Y. L. and Yamaura, K. and Yang, R. and Yanovich, A. and Yasin, Z. and Ying, J. and Yokkaichi, S. and Young, G. R. and Younus, I. and Yushmanov, I. E. and Zajc, W. A. and Zaudtke, O. and Zhang, C. and Zhou, S. and Zimanyi, J. and Zolin, L.},
  issn         = {1550-2368},
  language     = {eng},
  number       = {3},
  publisher    = {American Physical Society},
  series       = {Physical Review D (Particles, Fields, Gravitation and Cosmology)},
  title        = {Cross section and double helicity asymmetry for eta mesons and their comparison to pi(0) production in p plus p collisions at root s=200 GeV},
  url          = {http://dx.doi.org/10.1103/PhysRevD.83.032001},
  volume       = {83},
  year         = {2011},
}