Semileptonic decays of the light J{sup P}=1/2{sup +} ground state baryon octet

Journal Article · Sat Nov 01 00:00:00 EDT 2008 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.78.094005· OSTI ID:21254610

Faessler, Amand; Gutsche, Thomas; Lyubovitskij, Valery E ^[1]; Holstein, Barry R ^[2]; Ivanov, Mikhail A ^[3]; Koerner, Juergen G ^[4]

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1. Institut fuer Theoretische Physik, Universitaet Tuebingen, Auf der Morgenstelle 14, D-72076 Tuebingen (Germany)
2. Department of Physics-LGRT, University of Massachusetts, Amherst, Massachusetts 01003 (United States)
3. Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, 141980 Dubna (Russian Federation)
4. Institut fuer Physik, Johannes Gutenberg-Universitaet, D-55099 Mainz (Germany)

We calculate the semileptonic baryon octet-octet transition form factors using a manifestly Lorentz covariant quark model approach based on the factorization of the contribution of valence quarks and chiral effects. We perform a detailed analysis of SU(3)-breaking corrections to the hyperon semileptonic decay form factors. We present complete results on decay rates and asymmetry parameters including lepton mass effects for the rates.

• OSTI ID: 21254610
• Journal Information: Physical Review. D, Particles Fields, Vol. 78, Issue 9; Other Information: DOI: 10.1103/PhysRevD.78.094005; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
BARYON OCTETS
CHIRALITY
CORRECTIONS
FACTORIZATION
FORM FACTORS
GROUND STATES
HYPERONS
LEPTONS
LORENTZ INVARIANCE
MASS
QUARK MODEL
QUARKS
SEMILEPTONIC DECAY
SU-3 GROUPS
SYMMETRY BREAKING
VALENCE