NN*(1440) quasi-bound states

Journal Article · Fri Oct 21 00:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3647397· OSTI ID:21611923

Lu, Zhao ^[1]; Bingsong, Zou; Pengnian, Shen ^[1]; Yingjie, Zhang ^[2]

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1. Institute of High Energy Physics, CAS, Beijing 100049 (China)
2. Physics Department, Hebei University (China)

Inspired by a recent observation of a narrow resonance-like structure around 2360 MeV in the pn {yields} d{pi}{sup 0}{pi}{sup 0} cross section, we investigate the possibility of forming NN*(1440) quasi-bound state by meson exchange potential. With parameters of the t-channel {pi}, {sigma}, {rho} and {omega} exchanges determined by relevant NN scattering and N*(1440) decay processes, it is found that a NN*(1440) quasi-bound state with the same quantum numbers as the deuteron can be formed with binding energy about 20 MeV.

• OSTI ID: 21611923
• Journal Information: AIP Conference Proceedings, Vol. 1388, Issue 1; Conference: BARYONS' 10: International conference on the structure of baryons, Osaka (Japan), 7-11 Dec 2010; Other Information: DOI: 10.1063/1.3647397; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BINDING ENERGY
BOSON-EXCHANGE MODELS
BOUND STATE
CROSS SECTIONS
DEUTERONS
LAGRANGIAN FIELD THEORY
MEV RANGE
N-1440 BARYONS
NUCLEONS
OMEGA-782 MESONS
PIONS NEUTRAL
POTENTIALS
PROTON-NEUTRON INTERACTIONS
QUANTUM NUMBERS
RHO-770 MESONS
T CHANNEL
BARYON-BARYON INTERACTIONS
BARYONS
BOSONS
CHARGED PARTICLES
ELEMENTARY PARTICLES
ENERGY
ENERGY RANGE
FERMIONS
FIELD THEORIES
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
MATHEMATICAL MODELS
MESONS
N BARYONS
N*BARYONS
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PERIPHERAL MODELS
PIONS
PROTON-NUCLEON INTERACTIONS
PSEUDOSCALAR MESONS
QUANTUM FIELD THEORY
VECTOR MESONS