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Title: Progress on Neutron-Target Multipoles above 1 GeV

Abstract

We report a new extraction of nucleon resonance couplings using π{sup -} photo-production cross sections on the neutron. The world database for the process γn → π{sup -}p above 1 GeV has quadrupled with the addition of new differential cross sections from the CEBAF Large Acceptance Spectrometer (CLAS) at Jefferson Lab in Hall B. Differential cross sections from CLAS have been improved with a new final-state interaction determination using a diagrammatic technique taking into account the SAID phenomenological NN and πN final-state interaction amplitudes. Resonance couplings have been extracted and compared to previous determinations. With the addition of these new cross sections, significant changes are seen in the high-energy behavior of the SAID cross sections and amplitudes.

Authors:
; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1069286
Report Number(s):
JLAB-PHY-12-1619; DOE/OR/23177-2519
DOE Contract Number:  
AC05-06OR23177
Resource Type:
Conference
Journal Name:
EPJ Web of Conferences
Additional Journal Information:
Journal Volume: 37; Conference: MESON 2012, KRAKOW, POLAND, 31 May - 5 June 2012
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Strakovsky, I I, Gao, H, Briscoe, W J, Dutta, D, Kudryavtsev, A E, Mirazite, M, Paris, M, Rossi, P, Stepanyan, S, Tarasov, V E, and Workman, R L. Progress on Neutron-Target Multipoles above 1 GeV. United States: N. p., 2012. Web. doi:10.1051/epjconf/20123708005.
Strakovsky, I I, Gao, H, Briscoe, W J, Dutta, D, Kudryavtsev, A E, Mirazite, M, Paris, M, Rossi, P, Stepanyan, S, Tarasov, V E, & Workman, R L. Progress on Neutron-Target Multipoles above 1 GeV. United States. https://doi.org/10.1051/epjconf/20123708005
Strakovsky, I I, Gao, H, Briscoe, W J, Dutta, D, Kudryavtsev, A E, Mirazite, M, Paris, M, Rossi, P, Stepanyan, S, Tarasov, V E, and Workman, R L. 2012. "Progress on Neutron-Target Multipoles above 1 GeV". United States. https://doi.org/10.1051/epjconf/20123708005.
@article{osti_1069286,
title = {Progress on Neutron-Target Multipoles above 1 GeV},
author = {Strakovsky, I I and Gao, H and Briscoe, W J and Dutta, D and Kudryavtsev, A E and Mirazite, M and Paris, M and Rossi, P and Stepanyan, S and Tarasov, V E and Workman, R L},
abstractNote = {We report a new extraction of nucleon resonance couplings using π{sup -} photo-production cross sections on the neutron. The world database for the process γn → π{sup -}p above 1 GeV has quadrupled with the addition of new differential cross sections from the CEBAF Large Acceptance Spectrometer (CLAS) at Jefferson Lab in Hall B. Differential cross sections from CLAS have been improved with a new final-state interaction determination using a diagrammatic technique taking into account the SAID phenomenological NN and πN final-state interaction amplitudes. Resonance couplings have been extracted and compared to previous determinations. With the addition of these new cross sections, significant changes are seen in the high-energy behavior of the SAID cross sections and amplitudes.},
doi = {10.1051/epjconf/20123708005},
url = {https://www.osti.gov/biblio/1069286}, journal = {EPJ Web of Conferences},
number = ,
volume = 37,
place = {United States},
year = {Sat Dec 01 00:00:00 EST 2012},
month = {Sat Dec 01 00:00:00 EST 2012}
}

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