Measurement of beam-recoil observables <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mi>C</mml:mi> <mml:mi>x</mml:mi> </mml:msub> </mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mi

Exclusive photoproduction of K+Λ final states off a proton target has been an important component in the search for missing nucleon resonances and our understanding of the production of final states containing strange quarks. Polarization observables have been instrumental in this effort. The current work is an extension of previously published CLAS results on the beam-recoil transferred polarization observables Cx and Cz. We extend the kinematic range up to invariant mass W = 3.33 GeV from the previous limit of W = 2.5 GeV with significantly improved statistical precision in the region of overlap. These data will provide for tighter constraints on the reaction models used to unravel the spectrum of nucleon resonances and their properties by not only improving the statistical precision of the data within the resonance region, but also constraining t-channel processes that dominate at higher W but extend into the resonance region.

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Publication Details

Journal
Physical review. C
Published
2025-10-14
DOI
https://doi.org/10.1103/1q5m-x849
Primary Topic
Quantum Chromodynamics and Particle Interactions
Type
article
Field-Weighted Citation Impact
0.00
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article

Measurement of beam-recoil observables <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mi>C</mml:mi> <mml:mi>x</mml:mi> </mml:msub> </mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mi

Karl J. Friston
Physical review. C
Quantum Chromodynamics and Particle Interactions
article

Measurement of beam-recoil observables <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mi>C</mml:mi> <mml:mi>x</mml:mi> </mml:msub> </mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mi

Karl J. Friston
article en

Abstract

Exclusive photoproduction of K+Λ final states off a proton target has been an important component in the search for missing nucleon resonances and our understanding of the production of final states containing strange quarks. Polarization observables have been instrumental in this effort. The current work is an extension of previously published CLAS results on the beam-recoil transferred polarization observables Cx and Cz. We extend the kinematic range up to invariant mass W = 3.33 GeV from the previous limit of W = 2.5 GeV with significantly improved statistical precision in the region of overlap. These data will provide for tighter constraints on the reaction models used to unravel the spectrum of nucleon resonances and their properties by not only improving the statistical precision of the data within the resonance region, but also constraining t-channel processes that dominate at higher W but extend into the resonance region.

Physical review. CVol. 112(6)
New Mexico State University (US), Norfolk State University (US), Florida State University (US), University of California, Riverside (US), Idaho State University (US), University of Rome Tor Vergata (IT), James Madison University (US), Fairfield University (US), Argonne National Laboratory (US), A. Alikhanyan National Laboratory (AM), University of South Carolina (US), Istituto Nazionale di Fisica Nucleare (IT), William & Mary (US), Duquesne University (US), Rensselaer Polytechnic Institute (US), GSI Helmholtz Centre for Heavy Ion Research (DE), Duke University (US), Christopher Newport University (US), Lamar University (US), University of New Hampshire at Manchester (US), George Washington University (US), Florida International University (US), Justus-Liebig-Universität Gießen (DE), University of Ferrara (IT), Université Paris-Saclay (FR), Temple College (US), King Saud University (SA), Thomas Jefferson National Accelerator Facility (US), Kyungpook National University (KR), Dominion University College (GH), Ohio University (US), Universidad Técnica Federico Santa María (EC), Moscow State University (TJ), University of Virginia (US), University of York (GB), Arizona State University (US), Massachusetts Institute of Technology (US), University of La Serena (CL), Carnegie Mellon University (US), University of Glasgow (GB), University of Brescia (IT), Canisius College (US), Old Dominion University (US), Temple University (US), Virginia Tech (US), Mississippi State University (US)
Openalex Percentile: Top 82%
Quantum Chromodynamics and Particle Interactions
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