Evidence for a narrow N (1685) resonance in quasifree Compton scattering on the neutron

The study of quasifree Compton scattering on the neutron in the energy range of E{sub {gamma}}=0.75-1.5 GeV is presented. The data reveal a narrow peak at W{approx}1.685 GeV. This result, being considered in conjunction with the recent evidence for a narrow structure at W{approx}1.68 GeV in {eta} ph...

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Bibliographic Details
Published in:Physical review. C, Nuclear physics Nuclear physics, 2011-02, Vol.83 (2), Article 022201
Main Authors: Kuznetsov, V., Polyakov, M. V., Bellini, V., Boiko, T., Chebotaryov, S., Dho, H.-S., Gervino, G., Ghio, F., Giusa, A., Kim, A., Kim, W., Mammoliti, F., Milman, E., Ni, A., Perevalova, I. A., Randieri, C., Russo, G., Sperduto, M. L., Sutera, C. M., Vall, A. N.
Format: Article
Language:English
Subjects:
BARYONS
BASIC INTERACTIONS
COMPTON EFFECT
ELASTIC SCATTERING
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
GEV RANGE
GEV RANGE 01-10
HADRONS
INTERACTIONS
MASS
MEV RANGE
NEUTRONS
NUCLEAR PHYSICS AND RADIATION PHYSICS
NUCLEONS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PHOTOPRODUCTION
PROTONS
RESONANCE
SCATTERING
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Summary:The study of quasifree Compton scattering on the neutron in the energy range of E{sub {gamma}}=0.75-1.5 GeV is presented. The data reveal a narrow peak at W{approx}1.685 GeV. This result, being considered in conjunction with the recent evidence for a narrow structure at W{approx}1.68 GeV in {eta} photoproduction on the neutron, suggests the existence of a nucleon resonance with unusual properties: a mass M{approx}1.685 GeV, a narrow width {Gamma}{
ISSN:0556-2813
1089-490X
DOI:10.1103/PhysRevC.83.022201