Published February 7, 1994
| Version v1
Journal article
Enhanced leading production of D± and D*± in 250 GeV π±-nucleon interactions
Creators
- Alves, G.A.1, 2, 3, 4, 5, 6, 7
- Amato, S.1, 2, 3, 4, 5, 6, 7
- Anjos, J.C.1, 2, 3, 4, 5, 6, 7
- Appel, J.A.1, 2, 3, 4, 5, 6, 7
- Astorga, J.1, 2, 3, 4, 5, 6, 7
- Bernard, T.1, 2, 3, 4, 5, 6, 7
- Bracker, S.B.1, 2, 3, 4, 5, 6, 7
- Cremaldi, L.M.1, 2, 3, 4, 5, 6, 7
- Darling, C.L.1, 2, 3, 4, 5, 6, 7
- Dixon, R.L.1, 2, 3, 4, 5, 6, 7
- Errede, D.1, 2, 3, 4, 5, 6, 7
- Gay, C.1, 2, 3, 4, 5, 6, 7
- Green, D.R.1, 2, 3, 4, 5, 6, 7
- Jedicke, R.1, 2, 3, 4, 5, 6, 7
- Karchin, P.E.1, 2, 3, 4, 5, 6, 7
- Kwan, S.1, 2, 3, 4, 5, 6, 7
- Lueking, L.J.1, 2, 3, 4, 5, 6, 7
- de Mello Neto, J.R.T.1, 2, 3, 4, 5, 6, 7
- Metheny, J.1, 2, 3, 4, 5, 6, 7
- Milburn, R.H.1, 2, 3, 4, 5, 6, 7
- de Miranda, J.M.1, 2, 3, 4, 5, 6, 7
- da Motta Filho, H.1, 2, 3, 4, 5, 6, 7
- Napier, A.1, 2, 3, 4, 5, 6, 7
- Passmore, D.1, 2, 3, 4, 5, 6, 7
- Rafatian, A.1, 2, 3, 4, 5, 6, 7
- dos Reis, A.C.1, 2, 3, 4, 5, 6, 7
- Ross, W.R.1, 2, 3, 4, 5, 6, 7
- Santoro, A.F.S.1, 2, 3, 4, 5, 6, 7
- Sheaff, M.1, 2, 3, 4, 5, 6, 7
- Souza, M.H.G.1, 2, 3, 4, 5, 6, 7
- Spalding, W.J.1, 2, 3, 4, 5, 6, 7
- Stoughton, C.1, 2, 3, 4, 5, 6, 7
- Streetman, M.E.1, 2, 3, 4, 5, 6, 7
- Summers, D.J.1, 2, 3, 4, 5, 6, 7
- Takach, S.F.1, 2, 3, 4, 5, 6, 7
- Wallace, A.1, 2, 3, 4, 5, 6, 7
- Wu, Z.1, 2, 3, 4, 5, 6, 7
- (Fermilab E769 Collaboration)
- 1. Yale University, New Haven, Connecticut 06511 (United States)
- 2. University of Wisconsin-Madison, Madison, Wisconsin 53706 (United States)
- 3. Tufts University, Medford, Massachusetts 02155 (United States)
- 4. University of Toronto, Toronto, Ontario, M5S 1A7 (Canada)
- 5. University of Mississippi, Oxford, Mississippi 38677 (United States)
- 6. Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States)
- 7. Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro (Brazil)
Description
A leading charm meson is one with longitudinal momentum fraction, xF>0, whose light quark (or antiquark) is of the same type as one of the quarks in the beam particles. We report on the production asymmetry, A=[σ(leading-σ(nonleading)]/[σ(leading)+σ(nonleading)] as a function of xF. The data consist of 1500 fully reconstructed D± and D*± decays in Fermilab experiment E 769. We find a significant asymmetry for the production of charm quarks is not expected in perturbative quantum chromodynamics
Additional details
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 72
- Journal Issue
- 6
- Journal Page Range
- p. 812-815.
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 25048354
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- ASYMMETRY; CHARMED MESONS; D MINUS MESONS; D PLUS MESONS; PARTICLE PRODUCTION; PERTURBATION THEORY; PION MINUS-NEUTRON INTERACTIONS; PION MINUS-PROTON INTERACTIONS; PION PLUS-NEUTRON INTERACTIONS; PION PLUS-PROTON INTERACTIONS; QUANTUM CHROMODYNAMICS
- Descriptors DEC
- BOSONS; CHARM PARTICLES; D MESONS; ELEMENTARY PARTICLES; FIELD THEORIES; HADRON-HADRON INTERACTIONS; HADRONS; INTERACTIONS; MESON-BARYON INTERACTIONS; MESON-NUCLEON INTERACTIONS; MESONS; PARTICLE INTERACTIONS; PION-NEUTRON INTERACTIONS; PION-NUCLEON INTERACTIONS; PION-PROTON INTERACTIONS; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY
Optional Information
- Collaborations
- (Fermilab E769 Collaboration).