We estimate the Collins function at a low energy scale by calculating the fragmentation of a quark into a pion at the one-loop level in the chiral invariant model of Manohar and Georgi. We give a useful parametrization of our results and we briefly discuss different spin and/or azimuthal asymmetries containing the Collins function and measurable in semi-inclusive DIS and e+e- annihilation.
Estimate of the Collins function in a chiral invariant approach / Alessandro Bacchetta; R. Kundu; A. Metz; P. J. Mulders. - In: ACTA PHYSICA POLONICA B. - ISSN 0587-4254. - STAMPA. - 33(2002), pp. 3761-3766. ((Intervento presentato al convegno DIS 2002 tenutosi a Cracow, Poland nel 2002.
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Titolo: | Estimate of the Collins function in a chiral invariant approach |
Autori: | |
Data di pubblicazione: | 2002 |
Rivista: | |
Citazione: | Estimate of the Collins function in a chiral invariant approach / Alessandro Bacchetta; R. Kundu; A. Metz; P. J. Mulders. - In: ACTA PHYSICA POLONICA B. - ISSN 0587-4254. - STAMPA. - 33(2002), pp. 3761-3766. ((Intervento presentato al convegno DIS 2002 tenutosi a Cracow, Poland nel 2002. |
Abstract: | We estimate the Collins function at a low energy scale by calculating the fragmentation of a quark into a pion at the one-loop level in the chiral invariant model of Manohar and Georgi. We give a useful parametrization of our results and we briefly discuss different spin and/or azimuthal asymmetries containing the Collins function and measurable in semi-inclusive DIS and e+e- annihilation. |
Handle: | http://hdl.handle.net/11571/140374 |
Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |