Published April 1999
| Version v1
Journal article
Observation of a Coherence Length Effect in Exclusive ρ0 Electroproduction
Creators
- Galumian, P.1
- Green, P.W.1
- Greeniaus, L.G.1
- Kitching, P.1
- Martens, F.K.1
- Miller, C.A.1
- Gao, H.2
- Hansen, J.2
- Jackson, H.E.2
- Jones, C.2
- Makins, N.C.2
- ONeill, T.G.2
- Potterveld, D.H.2
- Bray, B.3
- Carter, P.3
- Dvoredsky, A.3
- Filippone, B.W.3
- Korsch, W.3
- Lung, A.3
- McIlhany, K.3
- McKeown, R.D.3
- Pitt, M.3
- Belz, J.E.4
- Brack, J.4
- Ely, J.4
- Fox, B.4
- Kinney, E.4
- Mercer, D.4
- Rakness, G.4
- Ristinen, R.4
- Ackerstaff, K.5
- Funk, M.5
- Holler, Y.5
- Ihssen, H.5
- Meyners, N.5
- Roeper, G.5
- Schueler, K.P.5
- Sinram, K.5
- Spengos, M.5
- Woller, K.5
- Zapfe-Dueren, K.5
- Akushevich, I.6
- Aschenauer, E.C.6
- Boettcher, H.6
- Borissov, A.6
- Brons, S.6
- Gaerber, Y.6
- Hasch, D.6
- Korotkov, V.6
- Krause, B.6
- Meissner, F.6
- Nowak, W.6
- Roloff, H.6
- Schwind, A.6
- Stoesslein, U.6
- Fechtchenko, A.7
- Gagunashvili, N.D.7
- Krivokhijine, V.G.7
- Mitsyn, V.7
- Nagaitsev, A.7
- Savin, I.7
- Shutov, V.7
- Benisch, T.8
- Bernreuther, S.8
- Braun, B.8
- Dueren, M.8
- Ferstl, M.8
- Fiedler, K.8
- Grosshauser, C.8
- Gute, A.8
- Henoch, M.8
- Kirsch, M.8
- Lachnit, W.8
- Neunreither, F.8
- Rith, K.8
- Schmidt, F.8
- Steffens, E.8
- Stenger, J.8
- Stock, F.8
- Wander, W.8
- Woelfel, T.8
- Dalpiaz, P.F.9
- Frabetti, S.9
- Masoli, F.9
- Reali, A.9
- Simani, C.9
- Slavich, P.9
- Avakian, H.
- Bianchi, N.
- Capitani, G.P.
- De Sanctis, E.
- Di Nezza, P.
- Fantoni, A.
- Giordjian, V.
- Gyurjyan, V.
- and others
- 1. Department of Physics, University of Alberta, Edmonton, Alberta T6G 2J1 (Canada)
- 2. Physics Division, Argonne National Laboratory, Argonne, Illinois 60439-4843 (United States)
- 3. W. K. Kellogg Radiation Lab, California Institute of Technology, Pasadena, California 91125 (United States)
- 4. Nuclear Physics Laboratory, University of Colorado, Boulder, Colorado 80309-0446 (United States)
- 5. DESY, Deutsches Elektronen Synchrotron, D-22603 Hamburg (Germany)
- 6. DESY Zeuthen, D-15738 Zeuthen (Germany)
- 7. Joint Institute for Nuclear Research, 141980 Dubna (Russian Federation)
- 8. Physikalisches Institut, Universitaet Erlangen-Nuernberg, D-91058 Erlangen (Germany)
- 9. Dipartimento di Fisica, Universita di Ferrara, I-44100 Ferrara (Italy)
Description
Exclusive incoherent electroproduction of the ρ0 number-sign770 meson from 1H , number-sign2H , number-sign3He , and number-sign14N targets has been studied by the HERMES experiment at squared four-momentum transfer Q2>0.4 GeV2 and positron energy loss ν from 9 to 20 GeV. The ratio of the number-sign14N to number-sign1H cross sections per nucleon, known as the nuclear transparency, was found to decrease with increasing coherence length of quark-antiquark fluctuations of the virtual photon. The data provide clear evidence of the interaction of the quark-antiquark fluctuations with the nuclear medium. copyright 1999 The American Physical Society
Additional details
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 82
- Journal Issue
- 15
- Journal Page Range
- p. 3025-3029
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 30037796
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- CROSS SECTIONS; DEUTERONS; ELECTRON REACTIONS; NITROGEN; NITROGEN 14; NUCLEAR MATTER; PARTICLE PRODUCTION; PROTONS; QUARK-ANTIQUARK INTERACTIONS; QUARKS; RHO-770 MESONS; TRITONS
- Descriptors DEC
- BARYONS; BOSONS; CATIONS; CHARGED PARTICLES; ELEMENTARY PARTICLES; ELEMENTS; FERMIONS; HADRONS; HYDROGEN IONS; HYDROGEN IONS 1 PLUS; INTERACTIONS; IONS; ISOTOPES; LEPTON REACTIONS; LIGHT NUCLEI; MATTER; MESONS; NITROGEN ISOTOPES; NONMETALS; NUCLEAR REACTIONS; NUCLEI; NUCLEONS; ODD-ODD NUCLEI; PARTICLE INTERACTIONS; STABLE ISOTOPES; VECTOR MESONS