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Charm production in nonresonant e(+)e(-) annihilations at √s =10.55 GeV
Baringer, Philip S. Bortoletto, D. Goldberg, M. Holmes, R. Horwitz, N. Jawahery, A. Lubrano, P. Moneti, G. C. Sharma, V. Shipsey, I. P. J.
Baringer, Philip S.
Bortoletto, D.
Goldberg, M.
Holmes, R.
Horwitz, N.
Jawahery, A.
Lubrano, P.
Moneti, G. C.
Sharma, V.
Shipsey, I. P. J.
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Abstract
We report results on the differential and total cross sections for inclusive production of the charmed particles D*+, D*(0), D(0), D(+), D(s), and Λc in e(+)e(-) annihilations at √s=10.55 GeV. Widely used quark fragmentation models are discussed and compared with the measured charmed-particle momentum distributions. This comparison, as well as that with measurements at other center-of-mass energies, shows the need to take QCD corrections into account and their importance for a correct interpretation of the model parameters. The observed rate of D(0) and D(+) production is compared to the expected total charm production cross section. We measure the probability of a charmed meson being produced as a vector meson and the D*(+) decay branching fraction into D(0)π+.
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This is the publisher's version also available electronically from http://journals.aps.org/prd/abstract/10.1103/PhysRevD.37.1719
Date
1989-04-01
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American Physical Society
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Baringer_4-1-1988.pdf
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Baringer, Philip S. et al. (1989). "Charm production in nonresonant e(+)e(-) annihilations at √s =10.55 GeV." Physical Review D, 1988(37):1719. http://dx.doi.org/10.1103/PhysRevD.37.1719