Collins azimuthal asymmetries of hadron production inside jets
We investigate the Collins azimuthal asymmetry of hadrons produced inside jets in transversely polarized proton–proton collisions. Recently, the quark transversity distributions and the Collins fragmentation functions have been extracted within global analyses from data of the processes semi-inclusi...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2017-11-01
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| Series: | Physics Letters B |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269317308432 |
| _version_ | 1818158757283102720 |
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| author | Zhong-Bo Kang Alexei Prokudin Felix Ringer Feng Yuan |
| author_facet | Zhong-Bo Kang Alexei Prokudin Felix Ringer Feng Yuan |
| author_sort | Zhong-Bo Kang |
| collection | DOAJ |
| description | We investigate the Collins azimuthal asymmetry of hadrons produced inside jets in transversely polarized proton–proton collisions. Recently, the quark transversity distributions and the Collins fragmentation functions have been extracted within global analyses from data of the processes semi-inclusive deep inelastic scattering and electron–positron annihilation. We calculate the Collins azimuthal asymmetry for charged pions inside jets using these extractions for RHIC kinematics at center-of-mass energies of 200 and 500 GeV. We compare our results with recent data from the STAR Collaboration at RHIC and find good agreement, which confirms the universality of the Collins fragmentation functions. In addition, we further explore the impact of transverse momentum dependent evolution effects. |
| first_indexed | 2024-12-11T15:35:09Z |
| format | Article |
| id | doaj.art-f7a6156b2962443fb6a83982609e2f17 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 1873-2445 |
| language | English |
| last_indexed | 2024-12-11T15:35:09Z |
| publishDate | 2017-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-f7a6156b2962443fb6a83982609e2f172022-12-22T00:59:58ZengElsevierPhysics Letters B0370-26931873-24452017-11-01774C63564210.1016/j.physletb.2017.10.031Collins azimuthal asymmetries of hadron production inside jetsZhong-Bo Kang0Alexei Prokudin1Felix Ringer2Feng Yuan3Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, USAScience Division, Penn State University Berks, Reading, PA 19610, USANuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USANuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USAWe investigate the Collins azimuthal asymmetry of hadrons produced inside jets in transversely polarized proton–proton collisions. Recently, the quark transversity distributions and the Collins fragmentation functions have been extracted within global analyses from data of the processes semi-inclusive deep inelastic scattering and electron–positron annihilation. We calculate the Collins azimuthal asymmetry for charged pions inside jets using these extractions for RHIC kinematics at center-of-mass energies of 200 and 500 GeV. We compare our results with recent data from the STAR Collaboration at RHIC and find good agreement, which confirms the universality of the Collins fragmentation functions. In addition, we further explore the impact of transverse momentum dependent evolution effects.http://www.sciencedirect.com/science/article/pii/S0370269317308432Collins asymmetryJetsPolarized scatteringPerturbative QCD |
| spellingShingle | Zhong-Bo Kang Alexei Prokudin Felix Ringer Feng Yuan Collins azimuthal asymmetries of hadron production inside jets Physics Letters B Collins asymmetry Jets Polarized scattering Perturbative QCD |
| title | Collins azimuthal asymmetries of hadron production inside jets |
| title_full | Collins azimuthal asymmetries of hadron production inside jets |
| title_fullStr | Collins azimuthal asymmetries of hadron production inside jets |
| title_full_unstemmed | Collins azimuthal asymmetries of hadron production inside jets |
| title_short | Collins azimuthal asymmetries of hadron production inside jets |
| title_sort | collins azimuthal asymmetries of hadron production inside jets |
| topic | Collins asymmetry Jets Polarized scattering Perturbative QCD |
| url | http://www.sciencedirect.com/science/article/pii/S0370269317308432 |
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