期刊
PHYSICAL REVIEW C
卷 105, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.105.065201
关键词
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资金
- U.S. Department of Energy
- National Science Foundation (NSF)
- Italian Istituto Nazionale di Fisica Nucleare (INFN)
- French Centre National de la Recherche Scientifique (CNRS)
- French Commissariat pour l'Energie Atomique
- UK Science and Technology Facilities Council
- National Research Foundation (NRF) of Korea
- HelmholtzForschungsakademie Hessen fur FAIR (HFHF)
- Chilean Agencia Nacional de Investigacion y Desarollo ANID PIA/APOYO [AFB180002]
- Physics Department at the Lomonosov Moscow State University
- U.S. Department of Energy [DE-AC0506OR23177]
- Skobeltsyn Nuclear Physics Institute at the Lomonosov Moscow State University
In this study, beam-recoil transferred polarizations for the exclusive electroproduction of K+ Lambda and K+Sigma(0) final states from an unpolarized proton target were measured using the CLAS12 spectrometer at Jefferson Laboratory. These new data are important for exploring the reaction mechanism in strangeness production processes, understanding the spectrum and structure of excited nucleon states, and gaining insights into the strong interaction in the regime of nonperturbative dynamics.
Beam-recoil transferred polarizations for the exclusive electroproduction of K+ Lambda and K+Sigma(0) final states from an unpolarized proton target have been measured using the CLAS12 spectrometer at Jefferson Laboratory. The measurements at beam energies of 6.535 and 7.546 GeV span the range of four-momentum transfer Q(2) from 0.3 to 4.5 GeV2 and invariant energy W from 1.6 to 2.4 GeV, while covering the full center-of-mass angular range of the K+. These new data extend the existing hyperon polarization data from CLAS in a similar kinematic range but from a significantly larger dataset. They represent an important addition to the world data, allowing for better exploration of the reaction mechanism in strangeness production processes, for further understanding of the spectrum and structure of excited nucleon states, and for improved insight into the strong interaction in the regime of nonperturbative dynamics.
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