We report measurements of the charm-anticharm production asymmetries for Λc+, Σc++, Σ c0, Σc++*, Σ c0*, and Λc+(2625) baryons from the Fermilab photoproduction experiment FOCUS (E831). These asymmetries are integrated over the region where the spectrometer has good acceptance. In addition, we have obtained results for the photoproduction asymmetries of the Λc baryons as functions of pL, pT2, and xF. The integrated asymmetry for Λc+ production, (σΛc+ - σΛc-)/(σΛc+ + σ Λc-), is 0.111 ± 0.018 ± 0.012, significantly different from zero. The asymmetries of the excited states are consistent with the Λc asymmetry.

Link, J., Yager, P., Anjos, J., Bediaga, I., Gobel, C., Machado, A., et al. (2004). Charm-anticharm baryon production asymmetries in photon-nucleon interactions. PHYSICS LETTERS. SECTION B, 581(1-2), 39-48 [10.1016/j.physletb.2003.12.011].

Charm-anticharm baryon production asymmetries in photon-nucleon interactions

Gianini G;
2004

Abstract

We report measurements of the charm-anticharm production asymmetries for Λc+, Σc++, Σ c0, Σc++*, Σ c0*, and Λc+(2625) baryons from the Fermilab photoproduction experiment FOCUS (E831). These asymmetries are integrated over the region where the spectrometer has good acceptance. In addition, we have obtained results for the photoproduction asymmetries of the Λc baryons as functions of pL, pT2, and xF. The integrated asymmetry for Λc+ production, (σΛc+ - σΛc-)/(σΛc+ + σ Λc-), is 0.111 ± 0.018 ± 0.012, significantly different from zero. The asymmetries of the excited states are consistent with the Λc asymmetry.
Articolo in rivista - Articolo scientifico
article; chemical interaction; electron; measurement; nucleon; photon; spectrometry
English
2004
581
1-2
39
48
none
Link, J., Yager, P., Anjos, J., Bediaga, I., Gobel, C., Machado, A., et al. (2004). Charm-anticharm baryon production asymmetries in photon-nucleon interactions. PHYSICS LETTERS. SECTION B, 581(1-2), 39-48 [10.1016/j.physletb.2003.12.011].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/455605
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