First results of fD and fDs in lattice QCD with exact chiral symmetry

Journal Article · Tue Jul 11 00:00:00 EDT 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2220238· OSTI ID:20873278

Chiu, T -W; Lee, J -Y; Liu, P -H; Chang, H -J ^[1]; Hsieh, T -H ^[2]

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1. Physics Department, National Taiwan University, Taipei, Taiwan (China)
2. Physics Section, Commission of General Education, National United University, Miao-Li, Taiwan (China)

The decay constants of D and Ds are determined in quenched lattice QCD with exact chiral symmetry. Our results are: fD = 235(8)(14) MeV, and fDs 266(10)(18) MeV. The latest experimental result of fD+ from CLEO is in good agreement with our prediction.

• OSTI ID: 20873278
• Journal Information: AIP Conference Proceedings, Vol. 842, Issue 1; Conference: 17. international conference on particles and nuclei, Santa Fe, NM (United States), 23-30 Oct 2005; Other Information: DOI: 10.1063/1.2220238; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CESR STORAGE RING
CHIRAL SYMMETRY
D MESONS
D S MESONS
LATTICE FIELD THEORY
MEV RANGE
MULTIPARTICLE SPECTROMETERS
PARTICLE DECAY
PARTICLE IDENTIFICATION
QUANTUM CHROMODYNAMICS