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EnglishThe angular distribution in photon-jet production in p (p) over bar -> gamma jet X is studied within a generalized factorization scheme taking into account the transverse momentum of the partons in the initial hadrons. Within this scheme an anomalously large cos2 phi asymmetry observed in the Drell-Yan process could be attributed to the T-odd, spin and transverse momentum dependent parton distribution function h(1)(perpendicular to q) (x, p(perpendicular to)(2)). This same function is expected to produce a cos 2 phi asymmetry in the photon-jet production cross section. We give the expression for this particular azimuthal asymmetry, which is estimated to be smaller than the Drell-Yan asymmetry but still of considerable size for Tevatron kinematics. This offers a new possibility to study T-odd effects at the Tevatron. (C) 2008 Elsevier B.V. All rights reserved.
T-odd effects in photon-jet production at the Tevatron / Boer D; Mulders PJ; Pisano C. - 660:4(2008), pp. 360-368. ((Intervento presentato al convegno XVI International Workshop on Deep-Inelastic Scattering and Related Topics (DIS08) tenutosi a London (UK).
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| Titolo: | T-odd effects in photon-jet production at the Tevatron |
| Autori: | |
| Data di pubblicazione: | 2008 |
| Rivista: | |
| Citazione: | T-odd effects in photon-jet production at the Tevatron / Boer D; Mulders PJ; Pisano C. - 660:4(2008), pp. 360-368. ((Intervento presentato al convegno XVI International Workshop on Deep-Inelastic Scattering and Related Topics (DIS08) tenutosi a London (UK). |
| Abstract: | The angular distribution in photon-jet production in p (p) over bar -> gamma jet X is studied within a generalized factorization scheme taking into account the transverse momentum of the partons in the initial hadrons. Within this scheme an anomalously large cos2 phi asymmetry observed in the Drell-Yan process could be attributed to the T-odd, spin and transverse momentum dependent parton distribution function h(1)(perpendicular to q) (x, p(perpendicular to)(2)). This same function is expected to produce a cos 2 phi asymmetry in the photon-jet production cross section. We give the expression for this particular azimuthal asymmetry, which is estimated to be smaller than the Drell-Yan asymmetry but still of considerable size for Tevatron kinematics. This offers a new possibility to study T-odd effects at the Tevatron. (C) 2008 Elsevier B.V. All rights reserved. |
| Handle: | http://hdl.handle.net/11584/81301 |
| Tipologia: | 4.1 Contributo in Atti di convegno |
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