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Measurement of the decay amplitudes of B0 → J/ψK*0 and Bs0 → J/ψφ decays

Affolder, T.
•
Akimoto, H.
•
Akopian, A.
altro
Zucchelli, S.
2000
  • journal article

Periodico
PHYSICAL REVIEW LETTERS
Abstract
An angular analysis of B-0 --> J/psi K*(0) and B-s(0) --> J/psi phi has been used to determine the decay amplitudes with parity-even longitudinal (A(0)) and transverse (A(\ \)) polarization and parity-odd transverse (A1(-)) polarization. The measurements are based on 190 B-0 and 40 B-s(0) candidates obtained from 89 pb(-1) of (p) over barp collisions at the Fermilab Tevatron. The longitudinal decay amplitude dominates with \A(0)\(2) = 0.59 +/- 0.06 +/- 0.01 for B-0 and \A(0)\ (2) = 0.61 +/- 0.14 +/- 0.02 for B-s(0) decays. The parity-odd amplitude is found to be small with \A1(-)\(2) = 0.13(-0.09)(+0.12) +/- 0.06 for B-0 and \A1(-)\ = 0.23 +/- 0.19 +/- 0.04 for B-s(0) decays.
DOI
10.1103/PhysRevLett.85.4668
WOS
WOS:000165556600007
Archivio
http://hdl.handle.net/11390/1124134
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0034316256
Diritti
metadata only access
Soggetti
  • Physics and Astronomy...

Scopus© citazioni
39
Data di acquisizione
Jun 15, 2022
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Web of Science© citazioni
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Data di acquisizione
Mar 26, 2024
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Data di acquisizione
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