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Improved Λp Elastic Scattering Cross Sections between 0.9 and 2.0 GeV/c as a Main Ingredient of the Neutron Star Equation of State.
Rowley, J; Compton, N; Djalali, C; Hicks, K; Price, J; Zachariou, N; Adhikari, K P; Armstrong, W R; Atac, H; Baashen, L; Barion, L; Bashkanov, M; Battaglieri, M; Bedlinskiy, I; Benmokhtar, F; Bianconi, A; Biondo, L; Biselli, A S; Bondi, M; Bossù, F; Boiarinov, S; Briscoe, W J; Brooks, W K; Bulumulla, D; Burkert, V D; Carman, D S; Carvajal, J C; Celentano, A; Chatagnon, P; Chesnokov, V; Chetry, T; Ciullo, G; Clark, L; Cole, P L; Contalbrigo, M; Costantini, G; Crede, V; D'Angelo, A; Dashyan, N; De Vita, R; Defurne, M; Deur, A; Diehl, S; Dupré, R; Egiyan, H; Ehrhart, M; El Alaoui, A; El Fassi, L; Eugenio, P; Fedotov, G.
Afiliación
  • Rowley J; Ohio University, Athens, Ohio 45701, USA.
  • Compton N; Ohio University, Athens, Ohio 45701, USA.
  • Djalali C; Ohio University, Athens, Ohio 45701, USA.
  • Hicks K; Ohio University, Athens, Ohio 45701, USA.
  • Price J; California State University, Dominguez Hills, Carson, California 90747, USA.
  • Zachariou N; University of York, York YO10 5DD, United Kingdom.
  • Adhikari KP; Old Dominion University, Norfolk, Virginia 23529, USA.
  • Armstrong WR; Argonne National Laboratory, Argonne, Illinois 60439, USA.
  • Atac H; Temple University, Philadelphia, Pennsylvania 19122, USA.
  • Baashen L; Florida International University, Miami, Florida 33199, USA.
  • Barion L; INFN, Sezione di Ferrara, 44100 Ferrara, Italy.
  • Bashkanov M; University of York, York YO10 5DD, United Kingdom.
  • Battaglieri M; INFN, Sezione di Genova, 16146 Genova, Italy.
  • Bedlinskiy I; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Benmokhtar F; National Research Centre Kurchatov Institute-ITEP, Moscow 117259, Russia.
  • Bianconi A; Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, USA.
  • Biondo L; INFN, Sezione di Pavia, 27100 Pavia, Italy.
  • Biselli AS; Università degli Studi di Brescia, 25123 Brescia, Italy.
  • Bondi M; INFN, Sezione di Catania, 95123 Catania, Italy.
  • Bossù F; INFN, Sezione di Genova, 16146 Genova, Italy.
  • Boiarinov S; Universià degli Studi di Messina, 98166 Messina, Italy.
  • Briscoe WJ; Fairfield University, Fairfield Connecticut 06824, USA.
  • Brooks WK; INFN, Sezione di Genova, 16146 Genova, Italy.
  • Bulumulla D; IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France.
  • Burkert VD; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Carman DS; The George Washington University, Washington, D.C. 20052, USA.
  • Carvajal JC; Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile.
  • Celentano A; Old Dominion University, Norfolk, Virginia 23529, USA.
  • Chatagnon P; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Chesnokov V; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Chetry T; Florida International University, Miami, Florida 33199, USA.
  • Ciullo G; INFN, Sezione di Genova, 16146 Genova, Italy.
  • Clark L; Université Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France.
  • Cole PL; Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia.
  • Contalbrigo M; Mississippi State University, Mississippi State, Mississippi 39762-5167, USA.
  • Costantini G; Università di Ferrara, 44121 Ferrara, Italy.
  • Crede V; INFN, Sezione di Ferrara, 44100 Ferrara, Italy.
  • D'Angelo A; University of Glasgow, Glasgow G12 8QQ, United Kingdom.
  • Dashyan N; Lamar University, 4400 MLK Boulevard, P.O. Box 10046, Beaumont, Texas 77710, USA.
  • De Vita R; INFN, Sezione di Ferrara, 44100 Ferrara, Italy.
  • Defurne M; INFN, Sezione di Pavia, 27100 Pavia, Italy.
  • Deur A; Università degli Studi di Brescia, 25123 Brescia, Italy.
  • Diehl S; Florida State University, Tallahassee, Florida 32306, USA.
  • Dupré R; INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy.
  • Egiyan H; Università di Roma Tor Vergata, 00133 Rome, Italy.
  • Ehrhart M; Yerevan Physics Institute, 375036 Yerevan, Armenia.
  • El Alaoui A; INFN, Sezione di Genova, 16146 Genova, Italy.
  • El Fassi L; IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France.
  • Eugenio P; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Fedotov G; University of Connecticut, Storrs, Connecticut 06269, USA.
Phys Rev Lett ; 127(27): 272303, 2021 Dec 31.
Article en En | MEDLINE | ID: mdl-35061432
ABSTRACT
Strange matter is believed to exist in the cores of neutron stars based on simple kinematics. If this is true, then hyperon-nucleon interactions will play a significant part in the neutron star equation of state. Yet, compared to other elastic scattering processes, there is very little data on Λ-N scattering. This experiment utilized the CEBAF Large Acceptance Spectrometer (CLAS) detector to study the Λp→Λp elastic scattering cross section in the incident Λ momentum range 0.9-2.0 GeV/c. These are the first data on this reaction since the 1970s. The new cross sections have significantly better accuracy and precision than the existing world data, and the techniques developed here can also be used in future experiments.
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Texto completo: 1 Banco de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2021 Tipo del documento: Article País de afiliación: Estados Unidos
Texto completo
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Texto completo: 1 Banco de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2021 Tipo del documento: Article País de afiliación: Estados Unidos