First Extraction of Transversity from a Global Analysis of Electron-Proton and Proton-Proton Data

被引：79
作者：
Radici, Marco [1 ]
Bacchetta, Alessandro [1 ,2 ]
机构：
[1] INFN, Sez Pavia, Via Bassi 6, I-27100 Pavia, Italy
[2] Univ Pavia, Dipartimento Fis, Via Bassi 6, I-27100 Pavia, Italy
来源：
PHYSICAL REVIEW LETTERS | 2018年 / 120卷 / 19期
基金：
欧洲研究理事会;
关键词：
DEEP-INELASTIC SCATTERING; FRAGMENTATION FUNCTIONS; PARTON DISTRIBUTIONS; EVOLUTION; LHC;
D O I：
10.1103/PhysRevLett.120.192001
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We present the first extraction of the transversity distribution in the framework of collinear factorization based on the global analysis of pion-pair production in deep-inelastic scattering and in proton-proton collisions with a transversely polarized proton. The extraction relies on the knowledge of dihadron fragmentation functions, which are taken from the analysis of electron-positron annihilation data. For the first time, the transversity is extracted from a global analysis similar to what is usually done for the spin-averaged and helicity distributions. The knowledge of transversity is important for, among other things, detecting possible signals of new physics in high-precision low-energy experiments.
引用
收藏
页数：5
相关论文
共 48 条
  • [1] A critical appraisal and evaluation of modern PDFs
    Accardi, A.
    Alekhin, S.
    Blumlein, J.
    Garzelli, M. V.
    Lipka, K.
    Melnitchouk, W.
    Moch, S.
    Owens, J. F.
    Placakyte, R.
    Reya, E.
    Sato, N.
    Vogt, A.
    Zenaiev, O.
    [J]. EUROPEAN PHYSICAL JOURNAL C, 2016, 76 (08):
  • [2] Accessing the nucleon transverse structure in inclusive deep inelastic scattering
    Accardi, Alberto
    Bacchetta, Alessandro
    [J]. PHYSICS LETTERS B, 2017, 773 : 632 - 638
  • [3] Observation of Transverse Spin-Dependent Azimuthal Correlations of Charged Pion Pairs in p↑ + p at √s=200 GeV
    Adamczyk, L.
    Adkins, J. K.
    Agakishiev, G.
    Aggarwal, M. M.
    Ahammed, Z.
    Alekseev, I.
    Alford, J.
    Aparin, A.
    Arkhipkin, D.
    Aschenauer, E. C.
    Averichev, G. S.
    Banerjee, A.
    Bellwied, R.
    Bhasin, A.
    Bhati, A. K.
    Bhattarai, P.
    Bielcik, J.
    Bielcikova, J.
    Bland, L. C.
    Bordyuzhin, I. G.
    Bouchet, J.
    Brandin, A. V.
    Bunzarov, I.
    Burton, T. P.
    Butterworth, J.
    Caines, H.
    Sanchez, M. Calderon de la Barca
    Campbell, J. M.
    Cebra, D.
    Cervantes, M. C.
    Chakaberia, I.
    Chaloupka, P.
    Chang, Z.
    Chattopadhyay, S.
    Chen, J. H.
    Chen, X.
    Cheng, J.
    Cherney, M.
    Christie, W.
    Contin, G.
    Crawford, H. J.
    Das, S.
    De Silva, L. C.
    Debbe, R. R.
    Dedovich, T. G.
    Deng, J.
    Derevschikov, A. A.
    di Ruzza, B.
    Didenko, L.
    Dilks, C.
    [J]. PHYSICAL REVIEW LETTERS, 2015, 115 (24)
  • [4] A high-statistics measurement of transverse spin effects in dihadron production from muon-proton semi-inclusive deep-inelastic scattering
    Adolph, C.
    Akhunzyanov, R.
    Alekseev, M. G.
    Alexandrov, Yu.
    Alexeev, G. D.
    Amoroso, A.
    Andrieux, V.
    Anosov, V.
    Austregesilo, A.
    Badelek, B.
    Balestra, F.
    Barth, J.
    Baum, G.
    Beck, R.
    Bedfer, Y.
    Berlin, A.
    Bernhard, J.
    Bertini, R.
    Bicker, K.
    Bieling, J.
    Birsa, R.
    Bisplinghoff, J.
    Bodlak, M.
    Boer, M.
    Bordalo, P.
    Bradamante, F.
    Braun, C.
    Bravar, A.
    Bressan, A.
    Buechele, M.
    Burtin, E.
    Capozza, L.
    Chiosso, M.
    Chung, S. U.
    Cicuttin, A.
    Crespo, M. L.
    Curiel, Q.
    Dalla Torre, S.
    Dasgupta, S. S.
    Dasgupta, S.
    Denisov, O. Yu.
    Donskov, S. V.
    Doshita, N.
    Duic, V.
    Duennweber, W.
    Dziewiecki, M.
    Efremov, A.
    Elia, C.
    Eversheim, P. D.
    Eyrich, W.
    [J]. PHYSICS LETTERS B, 2014, 736 : 124 - 131
  • [5] Transverse spin effects in hadron-pair production from semi-inclusive deep inelastic scattering
    Adolph, C.
    Alekseev, M. G.
    Alexakhin, V. Yu
    Alexandrov, Yu
    Alexeev, G. D.
    Amoroso, A.
    Antonov, A. A.
    Austregesilo, A.
    Badelek, B.
    Balestra, F.
    Barth, J.
    Baum, G.
    Bedfer, Y.
    Bernhard, J.
    Bertini, R.
    Bettinelli, M.
    Bicker, K.
    Bieling, J.
    Birsa, R.
    Bisplinghoff, J.
    Bordalo, P.
    Bradamante, F.
    Braun, C.
    Bravar, A.
    Bressan, A.
    Burtin, E.
    Chaberny, D.
    Chiosso, M.
    Chung, S. U.
    Cicuttin, A.
    Crespo, M. L.
    Dalla Torre, S.
    Das, S.
    Dasgupta, S. S.
    Denisov, O. Yu
    Dhara, L.
    Donskov, S. V.
    Doshita, N.
    Duic, V.
    Duennweber, W.
    Dziewiecki, M.
    Efremov, A.
    Elia, C.
    Eversheim, P. D.
    Eyrich, W.
    Faessler, M.
    Ferrero, A.
    Filin, A.
    Finger, M.
    Finger, M., Jr.
    [J]. PHYSICS LETTERS B, 2012, 713 (01) : 10 - 16
  • [6] AIRAPETIAN A, 2008, J HIGH ENERGY PHYS
  • [7] Transversity and Collins functions from SIDIS and e+e- data
    Anselmino, M.
    Boglione, M.
    D'Alesio, U.
    Kotzinian, A.
    Murgia, F.
    Prokudin, A.
    Turk, C.
    [J]. PHYSICAL REVIEW D, 2007, 75 (05):
  • [8] Simultaneous extraction of transversity and Collins functions from new semi-inclusive deep inelastic scattering and e+e- data
    Anselmino, M.
    Boglione, M.
    D'Alesio, U.
    Melis, S.
    Murgia, F.
    Prokudin, A.
    [J]. PHYSICAL REVIEW D, 2013, 87 (09):
  • [9] Measuring transverse spin correlations by 4-particle correlations in e(+)e(-)->2 jets
    Artru, X
    Collins, J
    [J]. ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1996, 69 (02): : 277 - 286
  • [10] Dihadron interference fragmentation functions in proton-proton collisions
    Bacchetta, A
    Radici, M
    [J]. PHYSICAL REVIEW D, 2004, 70 (09):
12345