Header

UZH-Logo

Maintenance Infos

Measurement of form-factor independent observables in the decay B0→K∗0μ+μ−


LHCb Collaboration; et al; Bernet, R; Müller, K; Steinkamp, O; Straumann, U; Vollhardt, A (2013). Measurement of form-factor independent observables in the decay B0→K∗0μ+μ−. Physical Review Letters, 111(19): 191801.

Abstract

We present a measurement of form-factor-independent angular observables in the decay B0→K∗(892)0μ+μ−. The analysis is based on a data sample corresponding to an integrated luminosity of 1.0  fb−1, collected by the LHCb experiment in pp collisions at a center-of-mass energy of 7 TeV. Four observables are measured in six bins of the dimuon invariant mass squared q2 in the range 0.1<q2<19.0  GeV2/c4. Agreement with recent theoretical predictions of the standard model is found for 23 of the 24 measurements. A local discrepancy, corresponding to 3.7 Gaussian standard deviations is observed in one q2 bin for one of the observables. Considering the 24 measurements as independent, the probability to observe such a discrepancy, or larger, in one is 0.5%.

Abstract

We present a measurement of form-factor-independent angular observables in the decay B0→K∗(892)0μ+μ−. The analysis is based on a data sample corresponding to an integrated luminosity of 1.0  fb−1, collected by the LHCb experiment in pp collisions at a center-of-mass energy of 7 TeV. Four observables are measured in six bins of the dimuon invariant mass squared q2 in the range 0.1<q2<19.0  GeV2/c4. Agreement with recent theoretical predictions of the standard model is found for 23 of the 24 measurements. A local discrepancy, corresponding to 3.7 Gaussian standard deviations is observed in one q2 bin for one of the observables. Considering the 24 measurements as independent, the probability to observe such a discrepancy, or larger, in one is 0.5%.

Statistics

Citations

203 citations in Web of Science®
177 citations in Scopus®
Google Scholar™

Altmetrics

Downloads

73 downloads since deposited on 06 Feb 2014
16 downloads since 12 months
Detailed statistics

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:2013
Deposited On:06 Feb 2014 08:02
Last Modified:05 Apr 2016 17:35
Publisher:American Physical Society
ISSN:0031-9007
Publisher DOI:https://doi.org/10.1103/PhysRevLett.111.191801

Download

Download PDF  'Measurement of form-factor independent observables in the decay B0→K∗0μ+μ−'.
Preview
Filetype: PDF
Size: 415kB
View at publisher
Download PDF  'Measurement of form-factor independent observables in the decay B0→K∗0μ+μ−'.
Preview
Content: Published Version
Filetype: PDF
Size: 173kB