Electroproduction of the Lambda/Sigma^0 hyperons at Q^2~0.5 (GeV/c)^2 at forward angles
K. OkuyamaDepartment of Physics , Graduate School of Science , Tohoku University , Sendai , Miyagi 980-8578 JapanKosuke ItabashiWPI-QUP , KEK , Oho 1-1 , Tsukuba , Ibaraki 305-0801 , JapanS. NagaoDepartment of Physics , Graduate School of Science , The University of Tokyo , Hongo , Tokyo 113-0033 JapanShintaro NakamuraDepartment of Physics , Graduate School of Science , Tohoku University , Sendai , Miyagi 980-8578 JapanKanichi SuzukiDepartment of Physics , Graduate School of Science , Kyoto University , Kyoto , Kyoto 606-8502 JapanT. GogamiDepartment of Physics , Graduate School of Science , Kyoto University , Kyoto , Kyoto 606-8502 JapanBhaskar PandeyDepartment of Physics , Hampton University , Hampton , Virginia 23668 , USAL. TangThomas Jefferson National Accelerator Facility , Newport News , Virginia 23606 , USAP. BydžovskýD. SkoupilCzech Academy of Sciences, Nuclear Physics InstituteT. MartDepartemen Fisika , FMIPA , Universitas Indonesia , Depok 16424 , IndonesiaD. AbramsDepartment of Physics , University of Virginia , Charlottesville , Virginia 22904 , USAT. AkiyamaDepartment of Physics , Graduate School of Science , Tohoku University , Sendai , Miyagi 980-8578 JapanD. AndroićK. AniolPhysics and Astronomy Department , California State University , Los Angeles , California 90032 , USAC. Ayerbe GayosoDepartment of Physics , The College of William and Mary , Virginia 23185 , USAJ. BaneDepartment of Physics , University of Tennessee , Knoxville , Tennessee 37996 , USAS. BarcusDepartment of Physics , The College of William and Mary , Virginia 23185 , USAJ. BarrowDepartment of Physics , University of Tennessee , Knoxville , Tennessee 37996 , USAVincenzo BelliniIstituto Nazionale di Fisica Nucleare , Sezione di Roma , 00185 , Rome , ItalyH. BhattDepartment of Physics , Mississippi State University , Mississippi State , Mississippi 39762 , USAD. BhetuwalDepartment of Physics , Mississippi State University , Mississippi State , Mississippi 39762 , USADiptaparna BiswasDepartment of Physics , Hampton University , Hampton , Virginia 23668 , USAA. CamsonneThomas Jefferson National Accelerator Facility , Newport News , Virginia 23606 , USAJ. Castillo CastellanosDepartment of Physics , Florida International University , Miami , Florida 33199 , USAJ-P. ChenThomas Jefferson National Accelerator Facility , Newport News , Virginia 23606 , USAChen, J.Thomas Jefferson National Accelerator Facility , Newport News , Virginia 23606 , USAS. CovrigThomas Jefferson National Accelerator Facility , Newport News , Virginia 23606 , USAD. ChrismanNational Superconducting Cyclotron Laboratory , Michigan State University , East Lansing , MI 48824 , USAR. Cruz-TorresDepartment of Physics , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , USADas, R.Department of Physics , State University of New York , Stony Brook , New York 11794 , USAE. FucheyDepartment of Physics , University of Connecticut , Storrs , Connecticut 06269 , USAKondo GnanvoDepartment of Physics , University of Virginia , Charlottesville , Virginia 22904 , USAF. GaribaldiInstituto Superiore di Sanità , 00161 , Rome , ItalyT. GautamDepartment of Physics , Hampton University , Hampton , Virginia 23668 , USAJ. GómezThomas Jefferson National Accelerator Facility , Newport News , Virginia 23606 , USAP. GuèyeDepartment of Physics , Hampton University , Hampton , Virginia 23668 , USATyler J. HagueDepartment of Physics , Kent State University , Kent , Ohio 44242 USAO. HansenThomas Jefferson National Accelerator Facility , Newport News , Virginia 23606 , USAWilliam HenryThomas Jefferson National Accelerator Facility , Newport News , Virginia 23606 , USAF. HauensteinDepartment of Physics , Old Dominion University , Norfolk , Virginia 23529 , USAD. W. HiginbothamThomas Jefferson National Accelerator Facility , Newport News , Virginia 23606 , USAC. E. Hyde-WrightDepartment of Physics , Old Dominion University , Norfolk , Virginia 23529 , USAM. KanetaDepartment of Physics , Graduate School of Science , Tohoku University , Sendai , Miyagi 980-8578 JapanC. KeppelThomas Jefferson National Accelerator Facility , Newport News , Virginia 23606 , USAT. KutzDepartment of Physics , State University of New York , Stony Brook , New York 11794 , USAN. Lashley-ColthirstDepartment of Physics , Hampton University , Hampton , Virginia 23668 , USAS. LiDepartment of Physics , University of New Hampshire , Durham , New Hampshire 03824 , USAH. LiuDepartment of Physics , Columbia University , New York , New York 10027 , USAJ. MammeiDepartment of Physics and Astronomy , University of Manitoba , Winnipeg , Manitoba R3T 2N2 , CanadaP. MarkowitzDepartment of Physics , Florida International University , Miami , Florida 33199 , USAR. E. McClellanThomas Jefferson National Accelerator Facility , Newport News , Virginia 23606 , USAF. MeddiSapienza University of Rome , I-00185 , Rome , ItalyD. MeekinsThomas Jefferson National Accelerator Facility , Newport News , Virginia 23606 , USAR. MichaelsThomas Jefferson National Accelerator Facility , Newport News , Virginia 23606 , USAM. MihovilovičA. MoyerDepartment of Physics , Christopher Newport University , Newport News , Virginia 23606 , USAD. NguyenDepartment of Physics , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , USAM. NyczDepartment of Physics , Kent State University , Kent , Ohio 44242 USAV. OwenDepartment of Physics , The College of William and Mary , Virginia 23185 , USAC. PalatchiDepartment of Physics , University of Virginia , Charlottesville , Virginia 22904 , USAS. ParkDepartment of Physics , State University of New York , Stony Brook , New York 11794 , USATomislav PetkovićS. PremathilakeDepartment of Physics , University of Virginia , Charlottesville , Virginia 22904 , USAP. E. ReimerPhysics Division , Argonne National Laboratory , Lemont , Illinois 60439 , USAJ. ReinholdDepartment of Physics , Florida International University , Miami , Florida 33199 , USAS. RiordanPhysics Division , Argonne National Laboratory , Lemont , Illinois 60439 , USAV. M. RodriguezDivisión de Ciencias y Tecnologia , Universidad Ana G. Méndez , Recinto de Cupey , San Juan 00926 , Puerto RicoC. SamantaDepartment of Physics & Astronomy , Virginia Military Institute , Lexington , Virginia 24450 , USAS. N. SantiestebanDepartment of Physics , University of New Hampshire , Durham , New Hampshire 03824 , USAB. SawatzkyThomas Jefferson National Accelerator Facility , Newport News , Virginia 23606 , USAS. ŠircaK. SliferDepartment of Physics , University of New Hampshire , Durham , New Hampshire 03824 , USAT. SuDepartment of Physics , Kent State University , Kent , Ohio 44242 USAY. TianDepartment of Physics , Syracuse University, New York, New York 10016, USA 39 School of Physics & Astronomy, University of Glasgow, Glasgow, G12 8QQ, Scotland, UKYuichi ToyamaDepartment of Physics , Graduate School of Science , Tohoku University , Sendai , Miyagi 980-8578 JapanUehara, K.Department of Physics , Graduate School of Science , Tohoku University , Sendai , Miyagi 980-8578 JapanG. M. UrciuoliIstituto Nazionale di Fisica Nucleare , Sezione di Roma , 00185 , Rome , ItalyD. VotawNational Superconducting Cyclotron Laboratory , Michigan State University , East Lansing , MI 48824 , USAWilliamson, J.Department of Applied Physics , University of Zagreb , HR-10000 Zagreb , CroatiaB. WojtsekhowskiThomas Jefferson National Accelerator Facility , Newport News , Virginia 23606 , USAS. A. WoodThomas Jefferson National Accelerator Facility , Newport News , Virginia 23606 , USAB. YaleDepartment of Physics , University of New Hampshire , Durham , New Hampshire 03824 , USAZ. YePhysics Division , Argonne National Laboratory , Lemont , Illinois 60439 , USAJ. ZhangDepartment of Physics , University of Virginia , Charlottesville , Virginia 22904 , USAZheng, X.Department of Physics , University of Virginia , Charlottesville , Virginia 22904 , USA
2024en
ABI
Annotatsiya
In 2018, the E12-17-003 experiment was conducted at the Thomas Jefferson National Accelerator Facility (JLab) to explore the possible existence of an nnLambda state in the reconstructed missing mass distribution from a tritium gas target [K. N. Suzuki et al., Prog. Theor. Exp. Phys. 2022, 013D01 (2022), B. Pandey et al., Phys. Rev. C 105, L051001 (2022)]. As part of this investigation, data was also collected using a gaseous hydrogen target, not only for a precise absolute mass scale calibration but also for the study of Lambda/Sigma^0 electroproduction. This dataset was acquired at Q^2~0.5 (GeV/c)^2, W=2.14 GeV, and theta_{gamma K}^{c.m.}~8 deg. It covers forward angles where photoproduction data is scarce and a low-Q^2 region that is of interest for hypernuclear experiments. On the other hand, this kinematic region is at a slightly higher Q^2 than previous hypernuclear experiments, thus providing crucial information for understanding the Q^2 dependence of the differential cross sections for Lambda/Sigma^0 hyperon electroproduction. This paper reports on the Q^2 dependence of the differential cross section for the e + p -> e' + K^+ + Lambda/Sigma^0 reaction in the 0.2-0.8 (GeV/c)^2, and provides comparisons with the currently available theoretical models.
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