[ital D][sup *[plus minus]] production in 250 GeV [pi][sup [plus minus]][ital N] interactions

Journal Article · Sun May 01 04:00:00 EDT 1994 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.49.R4317· OSTI ID:5010308

Alves, G A; Amato, S; Anjos, J C; Appel, J A; Astorga, J; Bracker, S B; Cremaldi, L M; Darling, C L; Dixon, R L; Errede, D; Fenker, H C; Gay, C; Green, D R; Halling, A M; Jedicke, R; Karchin, P E; Kwan, S; Leuking, L H; Mantsch, P M; de Mello Neto, J R.T. ; Metheny, J; Milburn, R H; de Miranda, J M; da Motta Filho, H; Napier, A; Passmore, D; Rafatian, A; dos Reis, A C; Ross, W R; Santoro, A F.S.; Sheaff, M; Souza, M H.G.; Spalding, W J; Stoughton, C; Streetman, M E; Summers, D J; Takach, S F; Wallace, A; Wu, Z ^[1]

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1. Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro (Brazil) Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States) University of Mississippi, Oxford, Mississippi 38677 (United States) University of Toronto, Toronto, Ontario, Canda M5S 1A7 (Canada) Tufts University, Medford, Massachusetts 02155 (United States) University of Wisconsin, Madison, Wisconsin 53706 (United States) Yale University, New Haven, Connecticut 06

We report results from Fermilab experiment E769 on the differential cross sections of [ital D][sup *[plus minus]] charm vector mesons with respect to Feynman-[ital x] ([ital x][sub [ital F]]) and transverse momentum ([ital P][sub [ital T]]), and on the atomic mass dependence of the production. The [ital D][sup *] mesons were produced by a 250 GeV [pi] beam on a target of Be, Al, Cu, and W foils. The [ital d][sigma]/[ital dx][sub [ital F]] distribution is fit by the form (1[minus][ital x][sub [ital F]])[sup [ital n]] with [ital n]=3.5[plus minus]0.3[plus minus]0.1, the [ital d][sigma]/[ital dP][sub [ital T]][sup 2] distribution by exp([minus][ital b][times][ital P][sub [ital T]][sup 2]) with [ital b]=0.70[plus minus]0.07[plus minus]0.04 GeV[sup [minus]2], and the cross section [ital A] dependence by [ital A][sup [alpha]] with [alpha]=1.00[plus minus]0.07[plus minus]0.02. These results are compared to the equivalent parameters for the production of pseudoscalar [ital D][sup 0] and [ital D][sup [plus minus]] charm mesons.

• OSTI ID: 5010308
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 49:9; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALUMINIUM 27 TARGET
BERYLLIUM 9 TARGET
BOSONS
CHARGED-PARTICLE REACTIONS
CHARM PARTICLES
CHARMED MESONS
COPPER 64 TARGET
CROSS SECTIONS
D -2010 MESONS
D -2420 MESONS
D MESONS
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ENERGY RANGE
GEV RANGE
GEV RANGE 100-1000
HADRON REACTIONS
HADRONS
LINEAR MOMENTUM
MESON REACTIONS
MESONS
NUCLEAR REACTIONS
PARTICLE PRODUCTION
PION MINUS REACTIONS
PION PLUS REACTIONS
PION REACTIONS
PSEUDOSCALAR MESONS
TARGETS
TRANSVERSE MOMENTUM
TUNGSTEN 184 TARGET
VECTOR MESONS