Measurement of the anomalous like-sign dimuon charge asymmetry with 9 fb-1 of p pbar collisions
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F11%3A00367905" target="_blank" >RIV/68378271:_____/11:00367905 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevD.84.052007" target="_blank" >http://dx.doi.org/10.1103/PhysRevD.84.052007</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.84.052007" target="_blank" >10.1103/PhysRevD.84.052007</a>
Alternative languages
Result language
angličtina
Original language name
Measurement of the anomalous like-sign dimuon charge asymmetry with 9 fb-1 of p pbar collisions
Original language description
We present an updated measurement of the anomalous like-sign dimuon charge asymmetry Aslb for semi-leptonic b-hadron decays in 9.0 fb-1 of p pbar collisions recorded with the D0 detector at a center-of-mass energy of sqrt{s} = 1.96 TeV at the Fermilab Tevatron collider. We obtain Aslb = (-0.787 +- 0.172(stat) +- 0.093 (syst))%. This result differs by 3.9 standard deviations from the prediction of the standard model and provides evidence for anomalously large CP violation in semi-leptonic neutral B decay. The dependence of the asymmetry on the muon impact parameter is consistent with the hypothesis that it originates from semi-leptonic b-hadron decays.
Czech name
—
Czech description
—
Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BF - Elementary particle theory and high energy physics
OECD FORD branch
—
Result continuities
Project
<a href="/en/project/LA08047" target="_blank" >LA08047: Collaboration on the D0 Experiment at FNAL, U.S.A.</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review D: Particles, Fields, Gravitation and Cosmology
ISSN
1550-7998
e-ISSN
—
Volume of the periodical
84
Issue of the periodical within the volume
5
Country of publishing house
US - UNITED STATES
Number of pages
24
Pages from-to
"052007-1"-"052007-24"
UT code for WoS article
000295008600001
EID of the result in the Scopus database
—