Longitudinal and transverse spin asymmetries for inclusive jet production at mid-rapidity in polarized p+p collisions at sqrt{s}=200 GeV

Longitudinal and transverse spin asymmetries for inclusive jet production at mid-rapidity in polarized p+p collisions at sqrt{s}=200 GeV

We report STAR measurements of the longitudinal double-spin asymmetry A_LL, the transverse single-spin asymmetry A_N, and the transverse double-spin asymmetries A_Sigma and A_TT for inclusive jet production at mid-rapidity in polarized p+p collisions at a center-of-mass energy of sqrt{s} = 200 GeV....

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: The STAR Collaboration, Adamczyk, L, Alakhverdyants, A. V, Arkhipkin, D, Banerjee, A, Bellwied, R, Bland, L. C, Bordyuzhin, I. G, Brandin, A. V, Chen, J. H, Chen, J. Y, Christie, W, Chung, P, Chwastowski, J, Cramer, J. G, Crawford, H. J, Cui, X, Debbe, R. R, Dedovich, T. G, Deng, J, de Souza, R. Derradi, Didenko, L, Djawotho, P, Drachenberg, J. L, Engelage, J, Evdokimov, O, Fedorisin, J, Geurts, F, Gliske, S, Gorbunov, Y. N, Hamed, A, Hays-Wehle, J. P, Heppelmann, S, Hoffmann, G. W, Humanic, T. J, Igo, G, Kauder, K, Keane, D, Kechechyan, A, Kiryluk, J, Kizka, V, Kotchenda, L, Krueger, K, Kumar, L, LaPointe, S, Lebedev, A, Llope, W. J, Lu, Y, Margetis, S, Matis, H. S, McDonald, D, Morozov, B, Mustafa, M. K, Naglis, M, Nasim, Md, Ohlson, A, Okorokov, V, Page, B. S, Pal, S. K, Panebratsev, Y, Pawlak, T, Porter, J, Powell, C. B, Prindle, D, Raniwala, R, Ray, R. L, Reed, R, Ritter, H. G, Romero, J. L, Ross, J. F, Sakuma, T, Sandacz, A, Seele, J, Sharma, M, Singaraju, R. N, Sorensen, P, Stock, R, Suaide, A. A. P, Sun, Y, Thein, D, Tokarev, M, Trentalange, S, Trzeciak, B. A, Viyogi, Y. P, Voloshin, S. A, Wada, M, Wang, J. S, Wang, Y, Webb, G, Webb, J. C, Westfall, G. D, Wu, Y. F, Xiao, Z, Xu, Z, Xue, L, Zhang, S, Zhang, W. M, Zhang, X. P, Zhong, C, Zhu, Y. H
Format: Artikel
Sprache:eng
Schlagworte:
Physics - Nuclear Experiment
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:We report STAR measurements of the longitudinal double-spin asymmetry A_LL, the transverse single-spin asymmetry A_N, and the transverse double-spin asymmetries A_Sigma and A_TT for inclusive jet production at mid-rapidity in polarized p+p collisions at a center-of-mass energy of sqrt{s} = 200 GeV. The data represent integrated luminosities of 7.6 /pb with longitudinal polarization and 1.8 /pb with transverse polarization, with 50-55% beam polarization, and were recorded in 2005 and 2006. No evidence is found for the existence of statistically significant jet A_N, A_Sigma, or A_TT at mid-rapidity. Recent model calculations indicate the A_N results may provide new limits on the gluon Sivers distribution in the proton. The asymmetry A_LL significantly improves the knowledge of gluon polarization in the nucleon.
DOI:10.48550/arxiv.1205.2735