Event Structure and Double Helicity Asymmetry in Jet Production from Polarized p+p Collisions at sqrt(s) = 200 GeV
Creators: name: Adare, A.
name: Afanasiev, S.
name: Aidala, C.
name: Ajitanand, N. N.
name: Akiba, Y.
name: Al-Bataineh, H.
name: Alexander, J.
name: Aoki, K.
name: Aphecetche, L.
name: Armendariz, R.
name: Aronson, S. H.
name: Asai, J.
name: Atomssa, E. T.
name: Averbeck, R.
name: Awes, T. C.
name: Azmoun, B.
name: Babintsev, V.
name: Baksay, G.
name: Baksay, L.
name: Baldisseri, A.
name: Barish, K. N.
name: Barnes, P. D.
name: Bassalleck, B.
name: Bathe, S.
name: Batsouli, S.
name: Baublis, V.
name: Bazilevsky, A.
name: Belikov, S.
name: Bennett, R.
name: Berdnikov, Y.
name: Bickley, A. A.
name: Boissevain, J. G.
name: Borel, H.
name: Boyle, K.
name: Brooks, M. L.
name: Buesching, H.
name: Bumazhnov, V.
name: Bunce, G.
name: Butsyk, S.
name: Campbell, S.
name: Chang, B. S.
name: Charvet, J. -L.
name: Chernichenko, S.
name: Chiba, J.
name: Chi, C. Y.
name: Chiu, M.
name: Choi, I. J.
name: Chujo, T.
name: Chung, P.
name: Churyn, A.
name: Cianciolo, V.
name: Cleven, C. R.
name: Cole, B. A.
name: Comets, M. P.
name: Constantin, P.
name: Csanád, M.
name: Csörgő, T.
name: Dahms, T.
name: Das, K.
name: David, G.
name: Deaton, M. B.
name: Dehmelt, K.
name: Delagrange, H.
name: Denisov, A.
name: d'Enterria, D.
name: Deshpande, A.
name: Desmond, E. J.
name: Dietzsch, O.
name: Dion, A.
name: Donadelli, M.
name: Drapier, O.
name: Drees, A.
name: Dubey, A. K.
name: Durum, A.
name: Dzhordzhadze, V.
name: Efremenko, Y. V.
name: Egdemir, J.
name: Ellinghaus, F.
name: Emam, W. S.
name: Enokizono, A.
name: En'yo, H.
name: Esumi, S.
name: Eyser, K. O.
name: Fields, D. E.
name: Finger, M.
name: Finger, M.
name: Fleuret, F.
name: Fokin, S. L.
name: Fraenkel, Z.
name: Frantz, J. E.
name: Franz, A.
name: Frawley, A. D.
name: Fujiwara, K.
name: Fukao, Y.
name: Fusayasu, T.
name: Gadrat, S.
name: Garishvili, I.
name: Glenn, A.
name: Gong, H.
name: Gonin, M.
name: Gosset, J.
name: Goto, Y.
name: de Cassagnac, R. Granier
name: Grau, N.
name: Greene, S. V.
name: Perdekamp, M. Grosse
name: Gunji, T.
name: Gustafsson, H. -Å.
name: Hachiya, T.
name: Henni, A. Hadj
name: Haegemann, C.
name: Haggerty, J. S.
name: Hamagaki, H.
name: Han, R.
name: Harada, H.
name: Hartouni, E. P.
name: Haruna, K.
name: Haslum, E.
name: Hayano, R.
name: Heffner, M.
name: Hemmick, T. K.
name: Hester, T.
name: He, X.
name: Hiejima, H.
name: Hill, J. C.
name: Hobbs, R.
name: Hohlmann, M.
name: Holzmann, W.
name: Homma, K.
name: Hong, B.
name: Horaguchi, T.
name: Hornback, D.
name: Ichihara, T.
name: Iinuma, H.
name: Imai, K.
name: Inaba, M.
name: Inoue, Y.
name: Isenhower, D.
name: Isenhower, L.
name: Ishihara, M.
name: Isobe, T.
name: Issah, M.
name: Isupov, A.
name: Jacak, B. V.
name: Jia, J.
name: Jin, J.
name: Jinnouchi, O.
name: Johnson, B. M.
name: Joo, K. S.
name: Jouan, D.
name: Kajihara, F.
name: Kametani, S.
name: Kamihara, N.
name: Kamin, J.
name: Kaneta, M.
name: Kang, J. H.
name: Kanou, H.
name: Kawall, D.
name: Kazantsev, A. V.
name: Khanzadeev, A.
name: Kikuchi, J.
name: Kim, D. H.
name: Kim, D. J.
name: Kim, E.
name: Kinney, E.
name: Kiss, Á.
name: Kistenev, E.
name: Kiyomichi, A.
name: Klay, J.
name: Klein-Boesing, C.
name: Kochenda, L.
name: Kochetkov, V.
name: Komkov, B.
name: Konno, M.
name: Kotchetkov, D.
name: Kozlov, A.
name: Král, A.
name: Kravitz, A.
name: Kubart, J.
name: Kunde, G. J.
name: Kurihara, N.
name: Kurita, K.
name: Kweon, M. J.
name: Kwon, Y.
name: Kyle, G. S.
name: Lacey, R.
name: Lai, Y. S.
name: Lajoie, J. G.
name: Lebedev, A.
name: Lee, D. M.
name: Lee, M. K.
name: Lee, T.
name: Leitch, M. J.
name: Leite, M. A. L.
name: Lenzi, B.
name: Liška, T.
name: Litvinenko, A.
name: Liu, M. X.
name: Li, X.
name: Love, B.
name: Lynch, D.
name: Maguire, C. F.
name: Makdisi, Y. I.
name: Malakhov, A.
name: Malik, M. D.
name: Manko, V. I.
name: Mao, Y.
name: Mašek, L.
name: Masui, H.
name: Matathias, F.
name: McCumber, M.
name: McGaughey, P. L.
name: Miake, Y.
name: Mikeš, P.
name: Miki, K.
name: Miller, T. E.
name: Milov, A.
name: Mioduszewski, S.
name: Mishra, M.
name: Mitchell, J. T.
name: Mitrovski, M.
name: Morreale, A.
name: Morrison, D. P.
name: Moukhanova, T. V.
name: Mukhopadhyay, D.
name: Murata, J.
name: Nagamiya, S.
name: Nagata, Y.
name: Nagle, J. L.
name: Naglis, M.
name: Nakagawa, I.
name: Nakamiya, Y.
name: Nakamura, T.
name: Nakano, K.
name: Newby, J.
name: Nguyen, M.
name: Norman, B. E.
name: Nouicer, R.
name: Nyanin, A. S.
name: O'Brien, E.
name: Oda, S. X.
name: Ogilvie, C. A.
name: Ohnishi, H.
name: Okada, K.
name: Oka, M.
name: Omiwade, O. O.
name: Oskarsson, A.
name: Ouchida, M.
name: Ozawa, K.
name: Pak, R.
name: Pal, D.
name: Palounek, A. P. T.
name: Pantuev, V.
name: Papavassiliou, V.
name: Park, J.
name: Park, W. J.
name: Pate, S. F.
name: Pei, H.
name: Peng, J. -C.
name: Pereira, H.
name: Peresedov, V.
name: Peressounko, D. Yu.
name: Pinkenburg, C.
name: Purschke, M. L.
name: Purwar, A. K.
name: Qu, H.
name: Rak, J.
name: Rakotozafindrabe, A.
name: Ravinovich, I.
name: Read, K. F.
name: Rembeczki, S.
name: Reuter, M.
name: Reygers, K.
name: Riabov, V.
name: Riabov, Y.
name: Roche, G.
name: Romana, A.
name: Rosati, M.
name: Rosendahl, S. S. E.
name: Rosnet, P.
name: Rukoyatkin, P.
name: Rykov, V. L.
name: Sahlmueller, B.
name: Saito, N.
name: Sakaguchi, T.
name: Sakai, S.
name: Sakata, H.
name: Samsonov, V.
name: Sato, S.
name: Sawada, S.
name: Seele, J.
name: Seidl, R.
name: Semenov, V.
name: Seto, R.
name: Sharma, D.
name: Shein, I.
name: Shevel, A.
name: Shibata, T. -A.
name: Shigaki, K.
name: Shimomura, M.
name: Shoji, K.
name: Sickles, A.
name: Silva, C. L.
name: Silvermyr, D.
name: Silvestre, C.
name: Sim, K. S.
name: Singh, C. P.
name: Singh, V.
name: Skutnik, S.
name: Slunečka, M.
name: Soldatov, A.
name: Soltz, R. A.
name: Sondheim, W. E.
name: Sorensen, S. P.
name: Sourikova, I. V.
name: Staley, F.
name: Stankus, P. W.
name: Stenlund, E.
name: Stepanov, M.
name: Ster, A.
name: Stoll, S. P.
name: Sugitate, T.
name: Suire, C.
name: Sziklai, J.
name: Tabaru, T.
name: Takagi, S.
name: Takagui, E. M.
name: Taketani, A.
name: Tanaka, Y.
name: Tanida, K.
name: Tannenbaum, M. J.
name: Taranenko, A.
name: Tarján, P.
name: Thomas, T. L.
name: Togawa, M.
name: Toia, A.
name: Tojo, J.
name: Tomášek, L.
name: Torii, H.
name: Towell, R. S.
name: Tram, V. -N.
name: Tserruya, I.
name: Tsuchimoto, Y.
name: Vale, C.
name: Valle, H.
name: van Hecke, H. W.
name: Velkovska, J.
name: Vértesi, R.
name: Vinogradov, A. A.
name: Virius, M.
name: Vrba, V.
name: Vznuzdaev, E.
name: Wagner, M.
name: Walker, D.
name: Wang, X. R.
name: Watanabe, Y.
name: Wessels, J.
name: White, S. N.
name: Winter, D.
name: Woody, C. L.
name: Wysocki, M.
name: Xie, W.
name: Yamaguchi, Y. L.
name: Yanovich, A.
name: Yasin, Z.
name: Ying, J.
name: Yokkaichi, S.
name: Young, G. R.
name: Younus, I.
name: Yushmanov, I. E.
name: Zajc, W. A.
name: Zaudtke, O.
name: Zhang, C.
name: Zhou, S.
name: Zimányi, J.
name: Zolin, L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: We report on event structure and double helicity asymmetry ($A_LL$) of jet production in longitudinally polarized p+p collisions at $\sqrt{s}$=200 GeV. Photons and charged particles were measured at midrapidity $|η| &lt; 0.35$ with the requirement of a high-momentum ($&gt;2$ GeV/$c$) photon in each event. Measured event structure is compared with {\sc pythia} and {\sc geant} simulations. The shape of jets and the underlying event were well reproduced at this collision energy. For the measurement of jet $A_{LL}$, photons and charged particles were clustered with a seed-cone algorithm to obtain the cluster $p_T$ sum ($p_T^{\rm reco}$). The effect of detector response and the underlying events on $p_T^{\rm reco}$ was evaluated with the simulation. The production rate of reconstructed jets is satisfactorily reproduced with the NLO pQCD jet production cross section. For $4 &lt; p_T^{\rm reco} &lt; 12$ GeV/$c$ with an average beam polarization of $&lt; P &gt; = 49%$ we measured $A_{LL} = -0.0014 \pm 0.0037^{\rm stat}$ at the lowest $p_T^{\rm reco}$ bin (4-5 GeV/$c$) and $-0.0181 \pm 0.0282^{\rm stat}$ at the highest $p_T^{\rm reco}$ bin (10-12 GeV/$c$) with a beam polarization scale error of 9.4% and a $\pT$ scale error of 10%. Jets in the measured $p_T^{\rm reco}$ range arise primarily from hard-scattered gluons with momentum fraction $0.02 &lt; x &lt; 0.3$ according to {\sc pythia}. The measured $A_{LL}$ is compared with predictions that assume various $ΔG(x)$ distributions based on the GRSV parameterization. The present result imposes the limit $-1.1 &lt; \int_{0.02}^{0.3}dx ΔG(x, μ^2 = 1 {\rm GeV}^2) &lt; 0.4$ at 95% confidence level or $\int_{0.02}^{0.3}dx ΔG(x, μ^2 = 1 {\rm GeV}^2) &lt; 0.5$ at 99% confidence level.
description: 376 authors from 58 institutions, 18 pages, 22 figures, and 5 tables. Submitted to Physical Review D. 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