# Measurement of sin(2beta) in Tree-dominated B^0-Decays and Ambiguity Removal

## Abstract

The most recent results from the B-factories on the time-dependent CP asymmetries measured in B{sup 0}-decays mediated by b {yields} c{bar c}s quark-transitions are reviewed. The Standard Model interpretation of the results in terms of the parameter sin 2{beta} leads to a four-fold ambiguity on the unitarity triangle {beta} which can be reduced to a two-fold ambiguity by measuring the sign of the parameter cos 2{beta}. The results on cos 2{beta} obtained so far are reviewed.

- Authors:

- Publication Date:

- Research Org.:
- Stanford Linear Accelerator Center (SLAC)

- Sponsoring Org.:
- USDOE

- OSTI Identifier:
- 900606

- Report Number(s):
- SLAC-PUB-12365

hep-ex/0702038; TRN: US0806054

- DOE Contract Number:
- AC02-76SF00515

- Resource Type:
- Conference

- Resource Relation:
- Conference: Presented at International Conference on B-Physics at Hadron Machines (Beauty 2006), Oxford, England, 25-29 Sep 2006

- Country of Publication:
- United States

- Language:
- English

- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; HADRONS; REMOVAL; STANDARD MODEL; UNITARITY; Experiment-HEP,HEPEX

### Citation Formats

```
Lacker, Heiko.
```*Measurement of sin(2beta) in Tree-dominated B^0-Decays and Ambiguity Removal*. United States: N. p., 2007.
Web.

```
Lacker, Heiko.
```*Measurement of sin(2beta) in Tree-dominated B^0-Decays and Ambiguity Removal*. United States.

```
Lacker, Heiko. Mon .
"Measurement of sin(2beta) in Tree-dominated B^0-Decays and Ambiguity Removal". United States.
doi:. https://www.osti.gov/servlets/purl/900606.
```

```
@article{osti_900606,
```

title = {Measurement of sin(2beta) in Tree-dominated B^0-Decays and Ambiguity Removal},

author = {Lacker, Heiko},

abstractNote = {The most recent results from the B-factories on the time-dependent CP asymmetries measured in B{sup 0}-decays mediated by b {yields} c{bar c}s quark-transitions are reviewed. The Standard Model interpretation of the results in terms of the parameter sin 2{beta} leads to a four-fold ambiguity on the unitarity triangle {beta} which can be reduced to a two-fold ambiguity by measuring the sign of the parameter cos 2{beta}. The results on cos 2{beta} obtained so far are reviewed.},

doi = {},

journal = {},

number = ,

volume = ,

place = {United States},

year = {Mon Mar 05 00:00:00 EST 2007},

month = {Mon Mar 05 00:00:00 EST 2007}

}

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