Coupled-channels study of the pi- p ---> eta n process
Journal Article
·
· Physical Review C
http://dx.doi.org/10.1103/PhysRevC.78.025204
The reaction $$\pi^{-}p \to \eta n$$ is investigated within a dynamical coupled-channels model of meson production reactions in the nucleon resonance region. The meson baryon channels included are $$\pi N$$, $$\eta N$$, $$\pi \Delta$$, $$\sigma N$$, and $$\rho N$$. The non-resonant meson-baryon interactions of the model are derived from a set of Lagrangians by using a unitary transformation method. One or two excited nucleon states in each of $$S$$, $$P$$, $$D$$, and $$F$$ partial waves are included to generate the resonant amplitudes. Data of $$\pi^{-}p \to \eta n$$ reaction from threshold up to a total center-of-mass energy of about 2 GeV are satisfactorily reproduced and the roles played by the following nine nucleon resonances are investigated: $$S_{11}(1535)$$, $$S_{11}(1650)$$, $$P_{11}(1440)$$, $$P_{11}(1710)$$, $$P_{13}(1720)$$, $$D_{13}(1520)$$, $$D_{13}(1700)$$, $$D_{15}(1675)$$, and $$F_{15}(1680)$$. The reaction mechanism as well as the predicted $$\eta N$$ scatte
The reaction $$\pi^{-}p \to \eta n$$ is investigated within a dynamical coupled-channels model of meson production reactions in the nucleon resonance region. The meson baryon channels included are $$\pi N$$, $$\eta N$$, $$\pi \Delta$$, $$\sigma N$$, and $$\rho N$$. The non-resonant meson-baryon interactions of the model are derived from a set of Lagrangians by using a unitary transformation method. One or two excited nucleon states in each of $$S$$, $$P$$, $$D$$, and $$F$$ partial waves are included to generate the resonant amplitudes. Data of $$\pi^{-}p \to \eta n$$ reaction from threshold up to a total center-of-mass energy of about 2 GeV are satisfactorily reproduced and the roles played by the following nine nucleon resonances are investigated: $$S_{11}(1535)$$, $$S_{11}(1650)$$, $$P_{11}(1440)$$, $$P_{11}(1710)$$, $$P_{13}(1720)$$, $$D_{13}(1520)$$, $$D_{13}(1700)$$, $$D_{15}(1675)$$, and $$F_{15}(1680)$$. The reaction mechanism as well as the predicted $$\eta N$$ scatte
- Research Organization:
- Thomas Jefferson Lab National Accelerator Facility
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 955874
- Report Number(s):
- JLAB-THY-08-812; arXiv:0804.3476; DOE/OR/23177-3727
- Journal Information:
- Physical Review C, Journal Name: Physical Review C Vol. 78; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
Similar Records
Coupled-channels study of the {pi}{sup -}p {right arrow} {eta}n process.
Coupled-channels study of the {pi}{sup -}p{yields}{eta}n process
η-production on the proton via electromagnetic and hadronic probes
Journal Article
·
Fri Aug 01 00:00:00 EDT 2008
· Phys. Rev. C
·
OSTI ID:940210
Coupled-channels study of the {pi}{sup -}p{yields}{eta}n process
Journal Article
·
Fri Aug 15 00:00:00 EDT 2008
· Physical Review. C, Nuclear Physics
·
OSTI ID:21192139
η-production on the proton via electromagnetic and hadronic probes
Conference
·
Thu Jan 07 23:00:00 EST 2010
· Chinese Physics C
·
OSTI ID:1999408