Semi-inclusive radiative decays of {upsilon}(1S)

Journal Article · Thu Sep 01 00:00:00 EDT 2005 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.72.054014· OSTI ID:20711444

Garcia i Tormo, Xavier; Soto, Joan ^[1]

---

1. Departament d'Estructura i Constituents de la Materia, Universitat de Barcelona, Diagonal 647, E-08028 Barcelona, Catalonia (Spain)

We discuss in detail the photon spectrum of radiative {upsilon}(1S) decays taking into account a number of results that have recently appeared in the literature. In particular, we show how to consistently combine expressions which are valid in the upper end point region, where NRQCD factorization breaks down, with those of the central region, where NRQCD factorization holds. An excellent description of data is achieved, but theoretical errors are large.

• OSTI ID: 20711444
• Journal Information: Physical Review. D, Particles Fields, Vol. 72, Issue 5; Other Information: DOI: 10.1103/PhysRevD.72.054014; (c) 2005 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
FACTORIZATION
PHOTONS
QUANTUM CHROMODYNAMICS
RADIATIVE DECAY
RESONANCE PARTICLES
UPSILON-9460 MESONS