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Multidimensional, High Precision Measurements of Beam Single Spin Asymmetries in Semi-inclusive π
Diehl, S; Kim, A; Angelini, G; Joo, K; Adhikari, S; Amaryan, M; Arratia, M; Atac, H; Avakian, H; Ayerbe Gayoso, C; Baltzell, N A; Barion, L; Bastami, S; Battaglieri, M; Bedlinskiy, I; Benmokhtar, F; Bianconi, A; Biselli, A S; Bondi, M; Bossù, F; Boiarinov, S; Brinkmann, K-T; Briscoe, W J; Brooks, W; Bulumulla, D; Burkert, V D; Carman, D S; Carvajal, J C; Celentano, A; Chatagnon, P; Chetry, T; Ciullo, G; Clark, L; Clary, B A; Cole, P L; Contalbrigo, M; Costantini, G; Crede, V; D'Angelo, A; Dashyan, N; De Vita, R; Defurne, M; Deur, A; Dilks, C; Djalali, C; Dugger, M; Dupre, R; Egiyan, H; Ehrhart, M; El Alaoui, A.
Affiliation
  • Diehl S; University of Connecticut, Storrs, Connecticut 06269, USA.
  • Kim A; II. Physikalisches Institut der Universität Gießen, 35392 Gießen, Germany.
  • Angelini G; University of Connecticut, Storrs, Connecticut 06269, USA.
  • Joo K; The George Washington University, Washington, D.C. 20052, USA.
  • Adhikari S; University of Connecticut, Storrs, Connecticut 06269, USA.
  • Amaryan M; Florida International University, Miami, Florida 33199, USA.
  • Arratia M; Old Dominion University, Norfolk, Virginia 23529, USA.
  • Atac H; University of California, Riverside, California 92521, USA.
  • Avakian H; Temple University, Philadelphia, Pennsylvania 19122, USA.
  • Ayerbe Gayoso C; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Baltzell NA; College of William and Mary, Williamsburg, Virginia 23187-8795, USA.
  • Barion L; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Bastami S; INFN, Sezione di Ferrara, 44100 Ferrara, Italy.
  • Battaglieri M; University of Connecticut, Storrs, Connecticut 06269, USA.
  • Bedlinskiy I; INFN, Sezione di Genova, 16146 Genova, Italy.
  • Benmokhtar F; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Bianconi A; National Research Centre Kurchatov Institute-ITEP, Moscow, 117259, Russia.
  • Biselli AS; Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, USA.
  • Bondi M; INFN, Sezione di Pavia, 27100 Pavia, Italy.
  • Bossù F; Università degli Studi di Brescia, 25123 Brescia, Italy.
  • Boiarinov S; Fairfield University, Fairfield, Connecticut 06824, USA.
  • Brinkmann KT; INFN, Sezione di Genova, 16146 Genova, Italy.
  • Briscoe WJ; IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France.
  • Brooks W; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Bulumulla D; II. Physikalisches Institut der Universität Gießen, 35392 Gießen, Germany.
  • Burkert VD; The George Washington University, Washington, D.C. 20052, USA.
  • Carman DS; Universidad Técnica Federico Santa María, Casilla 110-V Valparaíso, Chile.
  • Carvajal JC; Old Dominion University, Norfolk, Virginia 23529, USA.
  • Celentano A; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Chatagnon P; 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.
  • Clary BA; Mississippi State University, Mississippi State, Mississippi 39762-5167, USA.
  • Cole PL; Ohio University, Athens, Ohio 45701, USA.
  • Contalbrigo M; Universitá di Ferrara, 44121 Ferrara, Italy.
  • Costantini G; INFN, Sezione di Ferrara, 44100 Ferrara, Italy.
  • Crede V; University of Glasgow, Glasgow G12 8QQ, United Kingdom.
  • D'Angelo A; University of Connecticut, Storrs, Connecticut 06269, USA.
  • Dashyan N; Lamar University, 4400 MLK Blvd, 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.
  • Dilks C; Florida State University, Tallahassee, Florida 32306, USA.
  • Djalali C; INFN, Sezione di Roma Tor Vergata, 00133 Rome, Italy.
  • Dugger M; Università di Roma Tor Vergata, 00133 Rome Italy.
  • Dupre R; Yerevan Physics Institute, 375036 Yerevan, Armenia.
  • Egiyan H; INFN, Sezione di Genova, 16146 Genova, Italy.
  • Ehrhart M; IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France.
  • El Alaoui A; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
Phys Rev Lett ; 128(6): 062005, 2022 Feb 11.
Article in En | MEDLINE | ID: mdl-35213183
ABSTRACT
High precision measurements of the polarized electron beam-spin asymmetry in semi-inclusive deep inelastic scattering (SIDIS) from the proton have been performed using a 10.6 GeV incident electron beam and the CLAS12 spectrometer at Jefferson Lab. We report here a high precision multidimensional study of single π^{+} SIDIS data over a large kinematic range in Bjorken x, fractional energy, and transverse momentum of the hadron as well as photon virtualities Q^{2} ranging from 1-7 GeV^{2}. In particular, the structure function ratio F_{LU}^{sinϕ}/F_{UU} has been determined, where F_{LU}^{sinϕ} is a twist-3 quantity that can reveal novel aspects of emergent hadron mass and quark-gluon correlations within the nucleon. The data's impact on the evolving understanding of the underlying reaction mechanisms and their kinematic variation is explored using theoretical models for the different contributing transverse momentum dependent parton distribution functions.
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Full text: 1 Database: MEDLINE Language: En Year: 2022 Type: Article
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Full text: 1 Database: MEDLINE Language: En Year: 2022 Type: Article