LOW ENERGY K$sup -$p SCATTERING AND /anti K/N BOUND STATES
Assuming that the recently discovered Y* (m/sub Y*/ approximately 1385 Mev, 1/2 GAMMA approximately 15 Mev) is a K bar N(I = l) bound system, an effective range theory for K barN scattering in the I = 1 state is formulated. With a large effective range for the I = 1 state and a zero effective range for the I = 0 state, parameters which fit the present low energy K/sup -/-p scattering data and give constructive Coulomb-nuclear interference are found. The parameters indicate that the real part of the scattering length in the I = 0 state (i.e. a/sub o/) is small. This smallness of a/sub o/ is explained by postulating the existence of a K barN (I = 0) bound state lying helow the SIGMA pi threshold. A sigma pi resonance (I = 0) is expected just below the K barN threshold ( delta /sub SIGMA pi = 90 deg ). (auth)
- Research Organization:
- Imperial Coll. of Science and Tech., London
- NSA Number:
- NSA-16-010833
- OSTI ID:
- 4801899
- Journal Information:
- Nuclear Phys., Journal Name: Nuclear Phys. Vol. Vol: 29
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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