High-Statistics Measurement of Collins and Sivers Asymmetries for Transversely Polarized Deuterons
Affiliations
- 1 Affiliated with an international laboratory covered by a cooperation agreement with <a href="https://ror.org/01ggx4157">CERN</a>.
- 2 <a href="https://ror.org/01vj6ck58">Torino Section of INFN</a>, 10125 Torino, Italy.
- 3 University of Torino, Dept. of Physics, 10125 Torino, Italy.
- 4 University of Illinois at Urbana-Champaign, Dept. of Physics, Urbana, Illinois 61801-3080, USA.
- 5 <a href="https://ror.org/00ad27c73">A.I. Alikhanyan National Science Laboratory</a>, 2 Alikhanyan Br. Street, 0036, Yerevan, Armenia.
- 6 Czech Technical University in Prague, 16636 Prague, Czech Republic.
- 7 National Centre for Nuclear Research, 02-093 Warsaw, Poland.
- 8 University of Aveiro, I3N, Dept. of Physics, 3810-193 Aveiro, Portugal.
- 9 University of Warsaw, Faculty of Physics, 02-093 Warsaw, Poland.
- 10 Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany.
- 11 Technische Universität München, Physik Dept., 85748 Garching, Germany.
- 12 IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France.
- 13 <a href="https://ror.org/01ggx4157">CERN</a>, 1211 Geneva 23, Switzerland.
- 14 Charles University, Faculty of Mathematics and Physics, 12116 Prague, Czech Republic.
- 15 Trieste Section of INFN, 34127 Trieste, Italy.
- 16 University of Trieste, Dept. of Physics, 34127 Trieste, Italy.
- 17 Academia Sinica, Institute of Physics, Taipei 11529, Taiwan.
- 18 Affiliated with an institute covered by a cooperation agreement with <a href="https://ror.org/01ggx4157">CERN</a>.
- 19 Abdus Salam ICTP, 34151 Trieste, Italy.
- 20 Matrivani Institute of Experimental Research & Education, Calcutta-700 030, India.
- 21 Yamagata University, Yamagata 992-8510, Japan.
- 22 Ludwig-Maximilians-Universität, 80539 München, Germany.
- 23 LIP, 1649-003 Lisbon, Portugal.
- 24 Universität Freiburg, Physikalisches Institut, 79104 Freiburg, Germany.
- 25 Universität Bochum, Institut für Experimentalphysik, 44780 Bochum, Germany.
- 26 Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany.
- 27 Universität Bonn, Physikalisches Institut, 53115 Bonn, Germany.
- 28 Warsaw University of Technology, Institute of Radioelectronics, 00-665 Warsaw, Poland.
- 29 Tel Aviv University, School of Physics and Astronomy, 69978 Tel Aviv, Israel.
- 30 Center for High Energy and High Field Physics and Dept. of Physics, National Central University, 300 Zhongda Rd., Zhongli 320317, Taiwan.
- 31 University of Miyazaki, Miyazaki 889-2192, Japan.
- 32 Institute of Scientific Instruments of the CAS, 61264 Brno, Czech Republic.
- 33 Technical University in Liberec, 46117 Liberec, Czech Republic.
- PMID: 39303248
- DOI: 10.1103/PhysRevLett.133.101903
High-Statistics Measurement of Collins and Sivers Asymmetries for Transversely Polarized Deuterons
Authors
Affiliations
- 1 Affiliated with an international laboratory covered by a cooperation agreement with <a href="https://ror.org/01ggx4157">CERN</a>.
- 2 <a href="https://ror.org/01vj6ck58">Torino Section of INFN</a>, 10125 Torino, Italy.
- 3 University of Torino, Dept. of Physics, 10125 Torino, Italy.
- 4 University of Illinois at Urbana-Champaign, Dept. of Physics, Urbana, Illinois 61801-3080, USA.
- 5 <a href="https://ror.org/00ad27c73">A.I. Alikhanyan National Science Laboratory</a>, 2 Alikhanyan Br. Street, 0036, Yerevan, Armenia.
- 6 Czech Technical University in Prague, 16636 Prague, Czech Republic.
- 7 National Centre for Nuclear Research, 02-093 Warsaw, Poland.
- 8 University of Aveiro, I3N, Dept. of Physics, 3810-193 Aveiro, Portugal.
- 9 University of Warsaw, Faculty of Physics, 02-093 Warsaw, Poland.
- 10 Universität Bonn, Helmholtz-Institut für Strahlen- und Kernphysik, 53115 Bonn, Germany.
- 11 Technische Universität München, Physik Dept., 85748 Garching, Germany.
- 12 IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France.
- 13 <a href="https://ror.org/01ggx4157">CERN</a>, 1211 Geneva 23, Switzerland.
- 14 Charles University, Faculty of Mathematics and Physics, 12116 Prague, Czech Republic.
- 15 Trieste Section of INFN, 34127 Trieste, Italy.
- 16 University of Trieste, Dept. of Physics, 34127 Trieste, Italy.
- 17 Academia Sinica, Institute of Physics, Taipei 11529, Taiwan.
- 18 Affiliated with an institute covered by a cooperation agreement with <a href="https://ror.org/01ggx4157">CERN</a>.
- 19 Abdus Salam ICTP, 34151 Trieste, Italy.
- 20 Matrivani Institute of Experimental Research & Education, Calcutta-700 030, India.
- 21 Yamagata University, Yamagata 992-8510, Japan.
- 22 Ludwig-Maximilians-Universität, 80539 München, Germany.
- 23 LIP, 1649-003 Lisbon, Portugal.
- 24 Universität Freiburg, Physikalisches Institut, 79104 Freiburg, Germany.
- 25 Universität Bochum, Institut für Experimentalphysik, 44780 Bochum, Germany.
- 26 Universität Mainz, Institut für Kernphysik, 55099 Mainz, Germany.
- 27 Universität Bonn, Physikalisches Institut, 53115 Bonn, Germany.
- 28 Warsaw University of Technology, Institute of Radioelectronics, 00-665 Warsaw, Poland.
- 29 Tel Aviv University, School of Physics and Astronomy, 69978 Tel Aviv, Israel.
- 30 Center for High Energy and High Field Physics and Dept. of Physics, National Central University, 300 Zhongda Rd., Zhongli 320317, Taiwan.
- 31 University of Miyazaki, Miyazaki 889-2192, Japan.
- 32 Institute of Scientific Instruments of the CAS, 61264 Brno, Czech Republic.
- 33 Technical University in Liberec, 46117 Liberec, Czech Republic.
- PMID: 39303248
- DOI: 10.1103/PhysRevLett.133.101903
Abstract
New results are presented on a high-statistics measurement of Collins and Sivers asymmetries of charged hadrons produced in deep inelastic scattering of muons on a transversely polarized ^{6}LiD target. The data were taken in 2022 with the COMPASS spectrometer using the 160 GeV muon beam at CERN, statistically balancing the existing data on transversely polarized proton targets. The first results from about two-thirds of the new data have total uncertainties smaller by up to a factor of three compared to the previous deuteron measurements. Using all the COMPASS proton and deuteron results, both the transversity and the Sivers distribution functions of the u and d quark, as well as the tensor charge in the measured x range are extracted. In particular, the accuracy of the d quark results is significantly improved.
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