Production of the pentaquark {theta}{sup +} in np scattering
Journal Article
·
· Physical Review. D, Particles Fields
- Research Center for Nuclear Physics (RCNP), Ibaraki, Osaka 567-0047 (Japan)
- Department of Physics and Nuclear Physics and Radiation Technology Institute (NuRI), Pusan National University, Busan 609-735 (Korea, Republic of)
We study np{yields}{lambda}{theta}{sup +} and np{yields}{sigma}{sup 0}{theta}{sup +} processes for both of the positive and negative parities of the {theta}{sup +}. Employing the effective chiral Lagrangians for the KNY and K*NY interactions, we calculate differential cross sections as well as total cross sections for the np{yields}{sigma}{sup 0}{theta}{sup +} and np{yields}{lambda}{theta}{sup +} reactions. The total cross sections for the positive parity {theta}{sup +} turn out to be approximately 10 times larger than those for the negative parity {theta}{sup +} in the range of the c.m. energy E{sub c.m.}{sup th}{<=}E{sub c.m.}{<=}3.5 GeV. The results are rather sensitive to the parameters of K exchanges in the t channel.
- OSTI ID:
- 20698138
- Journal Information:
- Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 11 Vol. 70; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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