We report measurements of charm particle production asymmetries from the Fermilab photoproduction experiment E687. An asymmetry in the rate of production of charm versus anticharm particles is expected to arise primarily from fragmentation effects. We observe statistically significant asymmetries in the photoproduction of D+, D*+ and D0 mesons and find small (but statistically weak) asymmetries in the production of the D+s meson and the A+c baryon. Our inclusive photoproduction asymmetries are compared to predictions from nonperturbative models of charm quark fragmentation.

Frabetti, P., Cheung, H., Cumalat, J., Dallapiccola, C., Ginkel, J., Johns, W., et al. (1996). Charm-anticharm asymmetries in high energy photoproduction. PHYSICS LETTERS. SECTION B, 370(1-2), 222-232 [10.1016/0370-2693(96)00085-8].

Charm-anticharm asymmetries in high energy photoproduction

Gianini G;
1996

Abstract

We report measurements of charm particle production asymmetries from the Fermilab photoproduction experiment E687. An asymmetry in the rate of production of charm versus anticharm particles is expected to arise primarily from fragmentation effects. We observe statistically significant asymmetries in the photoproduction of D+, D*+ and D0 mesons and find small (but statistically weak) asymmetries in the production of the D+s meson and the A+c baryon. Our inclusive photoproduction asymmetries are compared to predictions from nonperturbative models of charm quark fragmentation.
Articolo in rivista - Articolo scientifico
Physics
English
1996
370
1-2
222
232
none
Frabetti, P., Cheung, H., Cumalat, J., Dallapiccola, C., Ginkel, J., Johns, W., et al. (1996). Charm-anticharm asymmetries in high energy photoproduction. PHYSICS LETTERS. SECTION B, 370(1-2), 222-232 [10.1016/0370-2693(96)00085-8].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/455963
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