skip to main content

DOE PAGESDOE PAGES

Title: Extraction of t slopes from experimental γ p K + Λ and γ p K + Σ 0 cross section data

Here, we analyze recent K + meson photoproduction data from the CLAS collaboration for the reactions γp → K +Λ and γp → K +Σ 0, fitting measured forward-angle differential cross sections to the form AeBt. We develop a quantitative scheme for determining the kinematic region where the fit is to be done, and, from the extracted t-slope B, determine whether single-Reggeon exchange can explain the production mechanism. We find that, in the region 5 < s < 8.1 GeV 2, production of the K +Λ channel can be explained by single K + Reggeon exchange, but the K +Σ 0 production channel cannot. We verify these conclusions by fitting the data to a differential cross section produced by the interfering sum of two exponential amplitudes.
Authors:
 [1] ;  [2] ;  [2] ;  [2] ;  [2] ;  [2]
  1. Argonne National Lab. (ANL), Lemont, IL (United States); Florida Intl Univ., Miami, FL (United States)
  2. Florida Intl Univ., Miami, FL (United States)
Publication Date:
Grant/Contract Number:
AC02-06CH11357; SC0013620; 2017-058-N0
Type:
Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 96; Journal Issue: 4; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society (APS)
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
Florida International University; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
OSTI Identifier:
1425264
Alternate Identifier(s):
OSTI ID: 1395915

Freese, Adam, Puentes, Daniel, Adhikari, Shankar, Badui, Rafael, Guo, Lei, and Raue, Brian. Extraction of t slopes from experimental γp→K+Λ and γp→K+Σ0 cross section data. United States: N. p., Web. doi:10.1103/PhysRevC.96.044601.
Freese, Adam, Puentes, Daniel, Adhikari, Shankar, Badui, Rafael, Guo, Lei, & Raue, Brian. Extraction of t slopes from experimental γp→K+Λ and γp→K+Σ0 cross section data. United States. doi:10.1103/PhysRevC.96.044601.
Freese, Adam, Puentes, Daniel, Adhikari, Shankar, Badui, Rafael, Guo, Lei, and Raue, Brian. 2017. "Extraction of t slopes from experimental γp→K+Λ and γp→K+Σ0 cross section data". United States. doi:10.1103/PhysRevC.96.044601. https://www.osti.gov/servlets/purl/1425264.
@article{osti_1425264,
title = {Extraction of t slopes from experimental γp→K+Λ and γp→K+Σ0 cross section data},
author = {Freese, Adam and Puentes, Daniel and Adhikari, Shankar and Badui, Rafael and Guo, Lei and Raue, Brian},
abstractNote = {Here, we analyze recent K+ meson photoproduction data from the CLAS collaboration for the reactions γp → K+Λ and γp → K+Σ0, fitting measured forward-angle differential cross sections to the form AeBt. We develop a quantitative scheme for determining the kinematic region where the fit is to be done, and, from the extracted t-slope B, determine whether single-Reggeon exchange can explain the production mechanism. We find that, in the region 5 < s < 8.1 GeV2, production of the K+Λ channel can be explained by single K+ Reggeon exchange, but the K+Σ0 production channel cannot. We verify these conclusions by fitting the data to a differential cross section produced by the interfering sum of two exponential amplitudes.},
doi = {10.1103/PhysRevC.96.044601},
journal = {Physical Review C},
number = 4,
volume = 96,
place = {United States},
year = {2017},
month = {10}
}