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Title: Measurement of the Branching Ratio {Gamma}(D*{sup +}{sub s} --> D{sup +}{sub s}{pi}{sup 0})/{Gamma}(D*{sup +}{sub s} --> D{sup +}{sub s}{gamma})

Abstract

The authors have measured a preliminary value for the branching ratio (Gamma)(D*{sup +}{sub s} --> D{sup +}{sub s}{pi}{sup 0})/{Gamma}(D*{sup +}{sub s} --> D{sup +}{sub s}{gamma}) = 0.0621 {+-} 0.0049(stat) {+-} 0.0063(syst), which is consistent with the previous measurement, but has higher precision. They have also measured {Gamma}(D*{sup 0} --> D{sup 0}{pi}{sup 0})/{Gamma}(D*{sup 0} --> D{sup 0}{gamma}) = 1.740 {+-} 0.020(stat) {+-} 0.125(syst), which is more precise than, and in agreement with, the world average. The branching fraction B(D*{sup +}{sub s} --> D{sup +}{sub s}{pi}{sup 0}) = 0.0585 {+-} 0.0043(stat) {+-} 0.0056(syst) is larger than the theoretical prediction, which is in the 1-3% range. However, it should be noted that the theory predicts a strong correlation between B(D*{sup +}{sub s} --> D{sup +}{sub s}{pi}{sup 0}) and B(D*{sup +} --> D{sup +}{gamma}); for B(D*{sup +} --> D{sup +}{gamma}) {approx}< 1%, B(D*{sup +}{sub s} --> D{sup +}{sub s}{pi}{sup 0}) is expected to be greatly enhanced.

Authors:
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (US)
OSTI Identifier:
829788
Report Number(s):
SLAC-PUB-10660
TRN: US0405779
DOE Contract Number:  
AC03-76SF00515
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 18 Aug 2004
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BRANCHING RATIO; STRANGE MESONS; PARTICLE DECAY; PIONS NEUTRAL; D NEUTRAL MESONS; DATA

Citation Formats

Aubert, B. Measurement of the Branching Ratio {Gamma}(D*{sup +}{sub s} --> D{sup +}{sub s}{pi}{sup 0})/{Gamma}(D*{sup +}{sub s} --> D{sup +}{sub s}{gamma}). United States: N. p., 2004. Web. doi:10.2172/829788.
Aubert, B. Measurement of the Branching Ratio {Gamma}(D*{sup +}{sub s} --> D{sup +}{sub s}{pi}{sup 0})/{Gamma}(D*{sup +}{sub s} --> D{sup +}{sub s}{gamma}). United States. https://doi.org/10.2172/829788
Aubert, B. 2004. "Measurement of the Branching Ratio {Gamma}(D*{sup +}{sub s} --> D{sup +}{sub s}{pi}{sup 0})/{Gamma}(D*{sup +}{sub s} --> D{sup +}{sub s}{gamma})". United States. https://doi.org/10.2172/829788. https://www.osti.gov/servlets/purl/829788.
@article{osti_829788,
title = {Measurement of the Branching Ratio {Gamma}(D*{sup +}{sub s} --> D{sup +}{sub s}{pi}{sup 0})/{Gamma}(D*{sup +}{sub s} --> D{sup +}{sub s}{gamma})},
author = {Aubert, B},
abstractNote = {The authors have measured a preliminary value for the branching ratio (Gamma)(D*{sup +}{sub s} --> D{sup +}{sub s}{pi}{sup 0})/{Gamma}(D*{sup +}{sub s} --> D{sup +}{sub s}{gamma}) = 0.0621 {+-} 0.0049(stat) {+-} 0.0063(syst), which is consistent with the previous measurement, but has higher precision. They have also measured {Gamma}(D*{sup 0} --> D{sup 0}{pi}{sup 0})/{Gamma}(D*{sup 0} --> D{sup 0}{gamma}) = 1.740 {+-} 0.020(stat) {+-} 0.125(syst), which is more precise than, and in agreement with, the world average. The branching fraction B(D*{sup +}{sub s} --> D{sup +}{sub s}{pi}{sup 0}) = 0.0585 {+-} 0.0043(stat) {+-} 0.0056(syst) is larger than the theoretical prediction, which is in the 1-3% range. However, it should be noted that the theory predicts a strong correlation between B(D*{sup +}{sub s} --> D{sup +}{sub s}{pi}{sup 0}) and B(D*{sup +} --> D{sup +}{gamma}); for B(D*{sup +} --> D{sup +}{gamma}) {approx}< 1%, B(D*{sup +}{sub s} --> D{sup +}{sub s}{pi}{sup 0}) is expected to be greatly enhanced.},
doi = {10.2172/829788},
url = {https://www.osti.gov/biblio/829788}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Aug 18 00:00:00 EDT 2004},
month = {Wed Aug 18 00:00:00 EDT 2004}
}