Electroproduction of the Λ/Σ0 hyperons at 𝑄2≃0.5 (GeV/𝑐)2 at forward angles

Scientific paper - Original scientific paper

• Author: K. Okuyama
• Author: K. Itabashi
• Author: S. Nagao
• Author: S. N. Nakamura
• Author: K. N. Suzuki
• Author: T. Gogami
• Author: B. Pandey
• Author: L. Tang
• Author: P. Bydžovský
• Author: D. Skoupil
• Author: T. Mart
• Author: D. Abrams
• Author: T. Akiyama
• Author: Darko Androić
• Author: K. Aniol
• Author: C. Ayerbe Gayoso
• Author: J. Bane
• Author: S. Barcus
• Author: J. Barrow
• Author: V. Bellini
• Author: H. Bhatt
• Author: D. Bhetuwal
• Author: D. Biswas
• Author: A. Camsonne
• Author: J. Castellanos
• Author: J.-P. Chen
• Author: J. Chen
• Author: S. Covrig
• Author: D. Chrisman
• Author: R. Cruz-Torres
• Author: R. Das
• Author: E. Fuchey
• Author: K. Gnanvo
• Author: F. Garibaldi
• Author: T. Gautam
• Author: J. Gomez
• Author: P. Gueye
• Author: T. J. Hague
• Author: O. Hansen
• Author: W. Henry
• Author: F. Hauenstein
• Author: D. W. Higinbotham
• Author: C. E. Hyde
• Author: M. Kaneta
• Author: C. Keppel
• Author: T. Kutz
• Author: N. Lashley-Colthirst
• Author: S. Li
• Author: H. Liu
• Author: J. Mammei
• Author: P. Markowitz
• Author: R. E. McClellan
• Author: F. Meddi
• Author: D. Meekins
• Author: R. Michaels
• Author: M. Mihovilovič
• Author: A. Moyer
• Author: D. Nguyen
• Author: M. Nycz
• Author: V. Owen
• Author: C. Palatchi
• Author: S. Park
• Author: T. Petkovic
• Author: S. Premathilake
• Author: P. E. Reimer
• Author: J. Reinhold
• Author: S. Riordan
• Author: V. Rodriguez
• Author: C. Samanta
• Author: S. N. Santiesteban
• Author: B. Sawatzky
• Author: S. Širca
• Author: K. Slifer
• Author: T. Su
• Author: Y. Tian
• Author: Y. Toyama
• Author: K. Uehara
• Author: G. M. Urciuoli
• Author: D. Votaw
• Author: J. Williamson
• Author: B. Wojtsekhowski
• Author: S. A. Wood
• Author: B. Yale
• Author: Z. Ye
• Author: J. Zhang
• Author: X. Zheng
• Collaboration: JLab Hypernuclear Collaboration
• Author's institution: University of Zagreb; Faculty of Science; (Department of Physics)
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Physics

Abstract (english)

In 2018, the E12-17-003 experiment was conducted at the Thomas Jefferson National Accelerator Facility (JLab) to explore the possible existence of an 𝑛𝑛Λ 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 were also collected using a gaseous hydrogen target, not only for a precise absolute mass scale calibration but also for the study of Λ/Σ0 electroproduction. This dataset was acquired at 𝑄2≃0.5 (GeV/𝑐)2, 𝑊=2.14 GeV, and 𝜃c.m.𝛾K≃8∘. It covers forward angles where photoproduction data are scarce and a low-𝑄2 region that is of interest for hypernuclear experiments. On the other hand, this kinematic region is at a slightly higher 𝑄2 than previous hypernuclear experiments, thus providing crucial information for understanding the 𝑄2 dependence of the differential cross sections for Λ/Σ0 hyperon electroproduction. This paper reports on the 𝑄2 dependence of the differential cross section for the 𝑒+𝑝→𝑒′+𝐾++Λ/Σ0 reaction at 0.2–0.8 (GeV/𝑐)2, and provides comparisons with the currently available theoretical models.

• Language: english
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Peer review - international
• Publication version: Published version
• Journal title: Physical Review C
• Numbering: vol. 110, no. 2, 025203
• p-ISSN: 2469-9985
• e-ISSN: 2469-9993
• DOI: https://doi.org/10.1103/PhysRevC.110.025203
• URN:NBN: urn:nbn:hr:217:858106
• Publication: 2024
• Document URL: https://link.aps.org/doi/10.1103/PhysRevC.110.025203
• Type of resource: Text
• Access conditions: Open access
• Public note: © 2024 American Physical Society. Received 13 March 2024; accepted 9 July 2024; published 5 August 2024.
• Created on: 2024-09-13 12:35:21