Measurement of the CP-Violation Parameter sin2 phi(1) with a New Tagging Method at the gamma(5S) Resonance
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10371051" target="_blank" >RIV/00216208:11320/12:10371051 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevLett.108.171801" target="_blank" >http://dx.doi.org/10.1103/PhysRevLett.108.171801</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevLett.108.171801" target="_blank" >10.1103/PhysRevLett.108.171801</a>
Alternative languages
Result language
angličtina
Original language name
Measurement of the CP-Violation Parameter sin2 phi(1) with a New Tagging Method at the gamma(5S) Resonance
Original language description
We report a measurement of the CP-violation parameter sin2 phi(1) at the gamma(5S) resonance using a new tagging method, called "B-pi tagging." In gamma(5S) decays containing a neutral B meson, a charged B, and a charged pion, the neutral B is reconstructed in the J/psi K-S(0) CP-eigenstate decay channel. The initial flavor of the neutral B meson at the moment of the gamma(5S) decay is opposite to that of the charged B and may thus be inferred from the charge of the pion without reconstructing the charged B. From the asymmetry between B-pi(+) and B-pi(-) tagged J/psi K-S(0) yields, we determine sin2 phi(1) 0.57 +/- 0.58(stat) +/- 0.06(syst). The results are based on 121 fb(-1) of data recorded by the Belle detector at the KEKB e(+) e(-) collider.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10303 - Particles and field physics
Result continuities
Project
<a href="/en/project/LA10033" target="_blank" >LA10033: Participation in the Belle a Belle II experiments: study of B-meson decays</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2012
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 Letters
ISSN
0031-9007
e-ISSN
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Volume of the periodical
108
Issue of the periodical within the volume
17
Country of publishing house
US - UNITED STATES
Number of pages
6
Pages from-to
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UT code for WoS article
000303191100004
EID of the result in the Scopus database
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