skip to main content

DOE PAGESDOE PAGES

Title: Correlations of π N partial waves for multireaction analyses

In the search for missing baryonic resonances, many analyses include data from a variety of pion- and photon-induced reactions. For elastic πN scattering, however, usually the partial waves of the SAID (Scattering Analysis Interactive Database) or other groups are fitted, instead of data. We provide the partial-wave covariance matrices needed to perform correlated χ 2 fits, in which the obtained χ 2 equals the actual χ 2 up to nonlinear and normalization corrections. For any analysis relying on partial waves extracted from elastic pion scattering, this is a prerequisite to assess the significance of resonance signals and to assign any uncertainty on results. Lastly, the influence of systematic errors is also considered.
Authors:
 [1] ;  [2] ;  [3] ;  [4]
  1. George Washington Univ., Washington, D.C. (United States). Institute for Nuclear Studies; Astronomy Physics, and Statistics Institute of Sciences; Dept. of Physics; Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  2. George Washington Univ., Washington, D.C. (United States). Dept. of Physics
  3. Univ. Bonn, Bonn (Germany). Helmholtz-Institut fur Strahlen -und Kernphysik (Theorie) and Bethe Center for Theoretical Physics
  4. George Washington Univ., Washington, D.C. (United States). Institute for Nuclear Studies and Dept. of Physics
Publication Date:
Report Number(s):
JLAB-THY-16-2320; DOE/OR/23177-3904; arXiv:1603.07265
Journal ID: ISSN 2469-9985; PRVCAN
Grant/Contract Number:
AC05-06OR23177; SC0014133; 1452055; 1415459
Type:
Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 93; Journal Issue: 6; Related Information: Jefferson Lab publications link: https://misportal.jlab.org/ul/publications/view_pub.cfm?pub_id=14473; Journal ID: ISSN 2469-9985
Publisher:
APS
Research Org:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
OSTI Identifier:
1306202
Alternate Identifier(s):
OSTI ID: 1257494