Abstract
We estimate ?Gd/Gd, including 1/mb contributions and part of the next-to-leading order QCD corrections. We find that adding the latter corrections decreases the value of ?Gd/Gd computed at the leading order by a factor of almost 2. We also show that under certain conditions an upper bound on the value of ?Gd/Gd in the presence of new physics can be derived. With the high statistics and accurate time resolution of the upcoming LHC experiment, the measurement of ?Gd seems to be possible. This measurement would be important for an accurate measurement of sin(2ß) at the LHC. In addition, we point out the possibility that the measurement of width difference leads to a clear signal for new physics.
| Original language | English |
|---|---|
| Journal | Proceedings of Science |
| Volume | 7 |
| Publication status | Published - 2001 Jan 1 |
| Event | 2001 International Europhysics Conference on High Energy Physics, HEP 2001 - Budapest, Hungary Duration: 2001 Jul 12 → 2001 Jul 18 |
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All Science Journal Classification (ASJC) codes
- General
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The width difference of BD mesons. / Dighe, Amol; Hurth, Tobias; Kim, Choong Sun; Yoshikawa, Tadashi.
In: Proceedings of Science, Vol. 7, 01.01.2001.Research output: Contribution to journal › Conference article
TY - JOUR
T1 - The width difference of BD mesons
AU - Dighe, Amol
AU - Hurth, Tobias
AU - Kim, Choong Sun
AU - Yoshikawa, Tadashi
PY - 2001/1/1
Y1 - 2001/1/1
N2 - We estimate ?Gd/Gd, including 1/mb contributions and part of the next-to-leading order QCD corrections. We find that adding the latter corrections decreases the value of ?Gd/Gd computed at the leading order by a factor of almost 2. We also show that under certain conditions an upper bound on the value of ?Gd/Gd in the presence of new physics can be derived. With the high statistics and accurate time resolution of the upcoming LHC experiment, the measurement of ?Gd seems to be possible. This measurement would be important for an accurate measurement of sin(2ß) at the LHC. In addition, we point out the possibility that the measurement of width difference leads to a clear signal for new physics.
AB - We estimate ?Gd/Gd, including 1/mb contributions and part of the next-to-leading order QCD corrections. We find that adding the latter corrections decreases the value of ?Gd/Gd computed at the leading order by a factor of almost 2. We also show that under certain conditions an upper bound on the value of ?Gd/Gd in the presence of new physics can be derived. With the high statistics and accurate time resolution of the upcoming LHC experiment, the measurement of ?Gd seems to be possible. This measurement would be important for an accurate measurement of sin(2ß) at the LHC. In addition, we point out the possibility that the measurement of width difference leads to a clear signal for new physics.
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M3 - Conference article
VL - 7
JO - Proceedings of Science
JF - Proceedings of Science
SN - 1824-8039
ER -