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Azimuthal transverse single-spin asymmetries of inclusive jets and charged pions within jets from polarized-proton collisions at s = 500 GeV

  • L. AdamczyK
  • , J. R. Adams
  • , J. K. Adkins
  • , G. Agakishiev
  • , M. M. Aggarwal
  • , Z. Ahammed
  • , N. N. Ajitanand
  • , I. Alekseev
  • , D. M. Anderson
  • , R. Aoyama
  • , A. Aparin
  • , D. Arkhipkin
  • , E. C. Aschenauer
  • , M. U. Ashraf
  • , A. Attri
  • , G. S. Averichev
  • , X. Bai
  • , V. Bairathi
  • , K. Barish
  • , A. Behera
  • R. Bellwied, A. Bhasin, A. K. Bhati, P. Bhattarai, J. BielciK, J. Bielcikova, L. C. Bland, I. G. Bordyuzhin, J. Bouchet, J. D. Brandenburg, A. V. Brandin, D. Brown, J. Bryslawskyj, I. Bunzarov, J. Butterworth, H. Caines, M. Calderón De La Barca Sánchez, J. M. Campbell, D. Cebra, I. Chakaberia, P. Chaloupka, Z. Chang, N. Chankova-Bunzarova, A. Chatterjee, S. Chattopadhyay, X. Chen, X. Chen, J. H. Chen, J. Cheng, M. Cherney, W. Christie, G. Contin, H. J. Crawford, S. Das, T. G. Dedovich, J. Deng, I. M. Deppner, A. A. Derevschikov, L. Didenko, C. Dilks, X. Dong, J. L. Drachenberg, J. E. Draper, J. C. Dunlop, L. G. Efimov, N. Elsey, J. Engelage, G. Eppley, R. Esha, S. Esumi, O. Evdokimov, J. Ewigleben, O. Eyser, R. Fatemi, S. Fazio, P. Federic, P. Federicova, J. Fedorisin, Z. Feng, P. Filip, E. Finch, Y. FisyaK, C. E. Flores, J. Fujita, L. FuleK, C. A. Gagliardi, F. Geurts, A. Gibson, M. Girard, D. GrosnicK, D. S. Gunarathne, Y. Guo, A. Gupta, W. Guryn, A. I. Hamad, A. Hamed, A. Harlenderova, J. W. Harris, L. He, S. Heppelmann, S. Heppelmann, N. Herrmann, A. Hirsch, S. Horvat, B. Huang, T. Huang, X. Huang, H. Z. Huang, T. J. Humanic, P. Huo, G. Igo, W. W. Jacobs, A. Jentsch, J. Jia, K. Jiang, S. Jowzaee, E. G. Judd, S. Kabana, D. Kalinkin, K. Kang, D. Kapukchyan, K. Kauder, H. W. Ke, D. Keane, A. Kechechyan, Z. Khan, D. P. Kikoła, C. Kim, I. Kisel, A. Kisiel, L. Kochenda, M. KocmaneK, T. Kollegger, L. K. Kosarzewski, A. F. Kraishan, L. Krauth, P. Kravtsov, K. Krueger, N. Kulathunga, L. Kumar, J. Kvapil, J. H. Kwasizur, R. Lacey, J. M. Landgraf, K. D. Landry, J. Lauret, A. Lebedev, R. Lednicky, J. H. Lee, X. Li, W. Li, Y. Li, C. Li, J. Lidrych, T. Lin, M. A. Lisa, F. Liu, P. Liu, Y. Liu, H. Liu, T. Ljubicic, W. J. Llope, M. Lomnitz, R. S. Longacre, X. Luo, S. Luo, G. L. Ma, L. Ma, R. Ma, Y. G. Ma, N. Magdy, R. Majka, D. MallicK, S. Margetis, C. Markert, H. S. Matis, D. Mayes, K. Meehan, J. C. Mei, Z. W. Miller, N. G. Minaev, S. Mioduszewski, D. Mishra, S. Mizuno, B. Mohanty, M. M. Mondal, D. A. Morozov, M. K. Mustafa, Md Nasim, T. K. NayaK, J. M. Nelson, D. B. Nemes, M. Nie, G. Nigmatkulov, T. Niida, L. V. Nogach, T. Nonaka, S. B. Nurushev, G. Odyniec, A. Ogawa, K. Oh, V. A. Okorokov, D. Olvitt, B. S. Page, R. PaK, Y. Pandit, Y. Panebratsev, B. PawliK, H. Pei, C. Perkins, J. Pluta, K. Poniatowska, J. Porter, M. PosiK, N. K. Pruthi, M. Przybycien, J. Putschke, A. Quintero, S. Ramachandran, R. L. Ray, R. Reed, M. J. Rehbein, H. G. Ritter, J. B. Roberts, O. V. Rogachevskiy, J. L. Romero, J. D. Roth, L. Ruan, J. RusnaK, O. Rusnakova, N. R. Sahoo, P. K. Sahu, S. Salur, J. Sandweiss, M. Saur, J. Schambach, A. M. Schmah, W. B. Schmidke, N. Schmitz, B. R. Schweid, J. Seger, M. Sergeeva, R. Seto, P. Seyboth, N. Shah, E. Shahaliev, P. V. Shanmuganathan, M. Shao, W. Q. Shen, S. S. Shi, Z. Shi, Q. Y. Shou, E. P. Sichtermann, R. Sikora, M. Simko, S. Singha, M. J. Skoby, N. Smirnov, D. Smirnov, W. Solyst, P. Sorensen, H. M. Spinka, B. Srivastava, T. D.S. Stanislaus, D. J. Stewart, M. Strikhanov, B. Stringfellow, A. A.P. Suaide, T. Sugiura, M. Sumbera, B. Summa, Y. Sun, X. Sun, X. M. Sun, B. Surrow, D. N. Svirida, A. H. Tang, Z. Tang, A. Taranenko, T. Tarnowsky, A. TawfiK, J. Thäder, J. H. Thomas, A. R. Timmins, D. Tlusty, T. Todoroki, M. Tokarev, S. Trentalange, R. E. Tribble, P. Tribedy, S. K. Tripathy, B. A. TrzeciaK, O. D. Tsai, T. Ullrich, D. G. Underwood, I. Upsal, G. Van Buren, G. Van Nieuwenhuizen, A. N. Vasiliev, F. VidebæK, S. Vokal, S. A. Voloshin, A. Vossen, G. Wang, Y. Wang, F. Wang, Y. Wang, G. Webb, J. C. Webb, L. Wen, G. D. Westfall, H. Wieman, S. W. WissinK, R. Witt, Y. Wu, Z. G. Xiao, G. Xie, W. Xie, Y. F. Xu, J. Xu, Q. H. Xu, N. Xu, Z. Xu, S. Yang, Y. Yang, C. Yang, Q. Yang, Z. Ye, Z. Ye, L. Yi, K. Yip, I. K. Yoo, N. Yu, H. ZbroszczyK, W. Zha, Z. Zhang, J. Zhang, S. Zhang, S. Zhang, J. Zhang, Y. Zhang, X. P. Zhang, J. B. Zhang, J. Zhao, C. Zhong, L. Zhou, C. Zhou, X. Zhu, Z. Zhu, M. ZyzaK
  • AGH University of Krakow
  • Ohio State University
  • University of Kentucky
  • Joint Institute for Nuclear Research
  • Panjab University
  • Variable Energy Cyclotron Centre
  • Stony Brook University
  • Alikhanov Institute for Theoretical and Experimental Physics
  • Moscow Engineering Physics Institute
  • Texas A&M University
  • University of Tsukuba
  • Brookhaven National Laboratory
  • Tsinghua University
  • Central China Normal University
  • National Institute of Science Education and Research
  • University of California at Riverside
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  • Czech Academy of Sciences
  • Kent State University
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  • CAS - Institute of Modern Physics
  • University of Science and Technology of China
  • Chinese Academy of Sciences
  • Creighton University
  • Lawrence Berkeley National Laboratory
  • University of California at Berkeley
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  • Heidelberg University 
  • Institute for High Energy Physics
  • Pennsylvania State University
  • Lamar University
  • Wayne State University
  • University of California at Los Angeles
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  • Southern Connecticut State University
  • Valparaiso University
  • Warsaw University of Technology
  • Temple University
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  • Indiana University Bloomington
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  • Argonne National Laboratory
  • Institute of Physics Bhubaneswar
  • Pusan National University
  • Institute of Nuclear Physics PAN
  • Rutgers - The State University of New Jersey, New Brunswick
  • Max Planck Institute for Physics (Werner Heisenberg Institute)
  • Universidade de São Paulo
  • Michigan State University
  • World Laboratory for Cosmology and Particle Physics (WLCAPP)
  • United States Naval Academy

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40 Citas (Scopus)

Resumen

We report the first measurements of transverse single-spin asymmetries for inclusive jet and jet+π± production at midrapidity from transversely polarized proton-proton collisions at s=500 GeV. The data were collected in 2011 with the STAR detector sampled from 23 pb-1 integrated luminosity with an average beam polarization of 53%. Asymmetries are reported for jets with transverse momenta 6<pT<55 GeV/c and pseudorapidity |η|<1. Presented are measurements of the inclusive-jet azimuthal transverse single-spin asymmetry, sensitive to twist-3 initial-state quark-gluon correlators; the Collins asymmetry, sensitive to quark transversity coupled to the polarized Collins fragmentation function; and the first measurement of the "Collins-like" asymmetry, sensitive to linearly polarized gluons. Within the present statistical precision, inclusive-jet and Collins-like asymmetries are small, with the latter allowing the first experimental constraints on gluon linear polarization in a polarized proton. At higher values of jet transverse momenta, we observe the first nonzero Collins asymmetries in polarized-proton collisions, with a statistical significance of greater than 5σ. The results span a range of x similar to results from semi-inclusive deep-inelastic scattering but at much higher Q2. The Collins results enable tests of universality and factorization breaking in the transverse momentum-dependent formulation of perturbative quantum chromodynamics.

Idioma originalInglés
Número de artículo032004
PublicaciónPhysical Review D
Volumen97
N.º3
DOI
EstadoPublicada - 1 feb 2018
Publicado de forma externa

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