SPINS AND PARITIES OF THE cap lambdaH$sup 4$ HYPERFRAGMENT AND K-MESON

Journal Article · Sat Mar 01 04:00:00 EST 1958 · Nuclear Phys.

DOI:https://doi.org/10.1016/0029-5582(58)90072-5· OSTI ID:4351752

Kuang-Chao, C; Shirokov, M I

If K mesons, hyperfragments, or hyperons are created in the pi /sup -/ + He/sup 4/ reaction near the threshold or in the K/sup -/ + He/sup 4/ reaction at low K/sup -/-particle energies (but without mesic atom formation), the spins of these unstable particles (and in some cases their parities) can be determined from the correlations between the directions of the momenta of the particles involved in these reactions and the directions of emission of decay products of the unstable particles. Qualitative changes in the correlation formulas for the cascade K/sup -/ + He/sup 4/ yields /sub DELTA /H/sup 4/ + pi /sup 0/, /sub DELTA /H/sup 4/ yields He/sup 4/ + pi /sup -/ are indicated which arise if one rejects the assumption thnt the K-meson spin is zero. The helium experiments together with the previously suggested hydrogen experiments (e.g., pi /sup -/ + p yields SIGMA + K or K/sup -/+ p yields SIGMA + pi ) are the only ones which are of practical use for the determination of new particle spins from angular correlations. (auth)

• Research Organization: Joint Inst. of Nuclear Research, Lab. of Theoretical Physics, Dubna, USSR
• NSA Number: NSA-12-007970
• OSTI ID: 4351752
• Journal Information: Nuclear Phys., Journal Name: Nuclear Phys. Vol. Vol: 6
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANGULAR DISTRIBUTION
BEAMS
DECAY
EMISSION
ENERGY
HELIUM 4
HYDROGEN
HYDROGEN 4
HYPERFRAGMENTS
HYPERONS
INTERACTIONS
KAONS
MEASURED VALUES
MESONS
MOMENTUM
PARITY
PHYSICS
PIONS
PRODUCTION
PROTONS
SCATTERING
SIGMA PARTICLES
SPIN
TARGETS