Your browser doesn't support javascript.
loading
Strangeness suppression of qq creation observed in exclusive reactions.
Mestayer, M D; Park, K; Adhikari, K P; Aghasyan, M; Pereira, S Anefalos; Ball, J; Battaglieri, M; Batourine, V; Bedlinskiy, I; Biselli, A S; Boiarinov, S; Briscoe, W J; Brooks, W K; Burkert, V D; Carman, D S; Celentano, A; Chandavar, S; Charles, G; Colaneri, L; Cole, P L; Contalbrigo, M; Cortes, O; Crede, V; D'Angelo, A; Dashyan, N; De Vita, R; Deur, A; Djalali, C; Doughty, D; Dupre, R; El Alaoui, A; El Fassi, L; Elouadrhiri, L; Eugenio, P; Fedotov, G; Fleming, J A; Forest, T A; Garillon, B; Garçon, M; Ghandilyan, Y; Gilfoyle, G P; Giovanetti, K L; Girod, F X; Goetz, J T; Golovatch, E; Gothe, R W; Griffioen, K A; Guegan, B; Guidal, M; Hakobyan, H.
Afiliação
  • Mestayer MD; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Park K; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Adhikari KP; Old Dominion University, Norfolk, Virginia 23529, USA.
  • Aghasyan M; INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy.
  • Pereira SA; INFN, Laboratori Nazionali di Frascati, 00044 Frascati, Italy.
  • Ball J; CEA, Centre de Saclay, Irfu/Service de Physique Nucléaire, 91191 Gif-sur-Yvette, France.
  • Battaglieri M; INFN, Sezione di Genova, 16146 Genova, Italy.
  • Batourine V; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Bedlinskiy I; Institute of Theoretical and Experimental Physics, Moscow 117259, Russia.
  • Biselli AS; Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA and Fairfield University, Fairfield, Connecticut 06824, USA.
  • Boiarinov S; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Briscoe WJ; The George Washington University, Washington, D.C. 20052, USA.
  • Brooks WK; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA and Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile.
  • Burkert VD; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Carman DS; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Celentano A; INFN, Sezione di Genova, 16146 Genova, Italy.
  • Chandavar S; Ohio University, Athens, Ohio 45701, USA.
  • Charles G; Institut de Physique Nucléaire ORSAY, Orsay, France.
  • Colaneri L; INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy and Universita' di Roma Tor Vergata, 00133 Rome, Italy.
  • Cole PL; Idaho State University, Pocatello, Idaho 83209, USA and Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Contalbrigo M; INFN, Sezione di Ferrara, 44100 Ferrara, Italy.
  • Cortes O; Idaho State University, Pocatello, Idaho 83209, USA.
  • Crede V; Florida State University, Tallahassee, Florida 32306, USA.
  • D'Angelo A; INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy and Universita' di Roma Tor Vergata, 00133 Rome, Italy.
  • Dashyan N; Yerevan Physics Institute, 375036 Yerevan, Armenia.
  • De Vita R; INFN, Sezione di Genova, 16146 Genova, Italy.
  • Deur A; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Djalali C; University of South Carolina, Columbia, South Carolina 29208, USA.
  • Doughty D; Christopher Newport University, Newport News, Virginia 23606, USA and Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Dupre R; Institut de Physique Nucléaire ORSAY, Orsay, France.
  • El Alaoui A; Argonne National Laboratory, Argonne, Illinois 60439, USA.
  • El Fassi L; Old Dominion University, Norfolk, Virginia 23529, USA.
  • Elouadrhiri L; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Eugenio P; Florida State University, Tallahassee, Florida 32306, USA.
  • Fedotov G; Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia and University of South Carolina, Columbia, South Carolina 29208, USA.
  • Fleming JA; Edinburgh University, Edinburgh EH9 3JZ, United Kingdom.
  • Forest TA; Idaho State University, Pocatello, Idaho 83209, USA.
  • Garillon B; Institut de Physique Nucléaire ORSAY, Orsay, France.
  • Garçon M; CEA, Centre de Saclay, Irfu/Service de Physique Nucléaire, 91191 Gif-sur-Yvette, France.
  • Ghandilyan Y; Yerevan Physics Institute, 375036 Yerevan, Armenia.
  • Gilfoyle GP; University of Richmond, Richmond, Virginia 23173, USA.
  • Giovanetti KL; James Madison University, Harrisonburg, Virginia 22807, USA.
  • Girod FX; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Goetz JT; Ohio University, Athens, Ohio 45701, USA.
  • Golovatch E; Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia.
  • Gothe RW; University of South Carolina, Columbia, South Carolina 29208, USA.
  • Griffioen KA; College of William and Mary, Williamsburg, Virginia 23187-8795, USA.
  • Guegan B; Institut de Physique Nucléaire ORSAY, Orsay, France.
  • Guidal M; Institut de Physique Nucléaire ORSAY, Orsay, France.
  • Hakobyan H; Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile and Yerevan Physics Institute, 375036 Yerevan, Armenia.
Phys Rev Lett ; 113(15): 152004, 2014 Oct 10.
Article em En | MEDLINE | ID: mdl-25375706
ABSTRACT
We measured the ratios of electroproduction cross sections from a proton target for three exclusive meson-baryon final states ΛK(+), pπ(0), and nπ(+), with the CLAS detector at Jefferson Lab. Using a simple model of quark hadronization, we extract qq creation probabilities for the first time in exclusive two-body production, in which only a single qq pair is created. We observe a sizable suppression of strange quark-antiquark pairs compared to nonstrange pairs, similar to that seen in high-energy production.
Buscar no Google
Imprimir
XML
PubMed Links

Base de dados: MEDLINE Idioma: En Ano de publicação: 2014 Tipo de documento: Article
Buscar no Google
Imprimir
XML
PubMed Links

Base de dados: MEDLINE Idioma: En Ano de publicação: 2014 Tipo de documento: Article