Radiative decays of resonances on the lattice

Journal Article · Fri Jan 22 00:00:00 EST 2016 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4938618· OSTI ID:22499029

Agadjanov, Andria ^[1]; Bernard, Véronique ^[2]; Meißner, Ulf-G. ^[1]; Rusetsky, Akaki ^[1]

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1. Helmholtz-Institut für Strahlen-und Kernphysik (Theorie), Bethe Center for Theoretical Physics, Universität Bonn, D-53115 Bonn (Germany)
2. Institut de Physique Nucléaire, CNRS/Univ. Paris-Sud 11 (UMR 8608), F-91406 Orsay Cedex (France)

We discuss a generalization of the Lüscher approach to the calculation of the matrix elements of the unstable states. A theoretical framework for the lattice extraction of the ΔNγ* transition form factors is formulated. The procedure to measure the form factors at the resonance pole is given. The current theoretical progress on the B → K*γ* decays is briefly summarized.

• OSTI ID: 22499029
• Journal Information: AIP Conference Proceedings, Vol. 1701, Issue 1; Conference: 11. conference on quark confinement and hadron spectrum, Saint Petersburg (Russian Federation), 8-12 Sep 2014; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CURRENTS
EXTRACTION
FORM FACTORS
MATRIX ELEMENTS
RADIATIVE DECAY
RESONANCE