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Measurement of the lifetime difference between Bs mass eigenstates.

Publication ,  Journal Article
Acosta, D; Adelman, J; Affolder, T; Akimoto, T; Albrow, MG; Ambrose, D; Amerio, S; Amidei, D; Anastassov, A; Anikeev, K; Annovi, A; Antos, J ...
Published in: Physical review letters
March 2005

We present measurements of the lifetimes and polarization amplitudes for B(0)(s)-->J/psiphi and B(0)(d)-->J/psiK(*0) decays. Lifetimes of the heavy and light mass eigenstates in the B(0)(s) system are separately measured for the first time by determining the relative contributions of amplitudes with definite CP as a function of the decay time. Using 203+/-15 B(0)(s) decays we obtain tau(L) = (1.05(+0.16)(-0.13) +/- 0.02) ps and tau(H) = (2.07(+0.58)(-0.46) +/- 0.03) ps. Expressed in terms of the difference DeltaGamma(s) and average Gamma(s), of the decay rates of the two eigenstates, the results are DeltaGamma(s)/Gamma(s) = (65(+25)(-33) +/- 1)% and DeltaGamma(s) = (0.47(+0.19)(-0.24) +/- 0.01) ps(-1).

Duke Scholars

Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

March 2005

Volume

94

Issue

10

Start / End Page

101803

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

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Acosta, D., Adelman, J., Affolder, T., Akimoto, T., Albrow, M. G., Ambrose, D., … Sherman, D. (2005). Measurement of the lifetime difference between Bs mass eigenstates. Physical Review Letters, 94(10), 101803. https://doi.org/10.1103/physrevlett.94.101803
Acosta, D., J. Adelman, T. Affolder, T. Akimoto, M. G. Albrow, D. Ambrose, S. Amerio, et al. “Measurement of the lifetime difference between Bs mass eigenstates.Physical Review Letters 94, no. 10 (March 2005): 101803. https://doi.org/10.1103/physrevlett.94.101803.
Acosta D, Adelman J, Affolder T, Akimoto T, Albrow MG, Ambrose D, et al. Measurement of the lifetime difference between Bs mass eigenstates. Physical review letters. 2005 Mar;94(10):101803.
Acosta, D., et al. “Measurement of the lifetime difference between Bs mass eigenstates.Physical Review Letters, vol. 94, no. 10, Mar. 2005, p. 101803. Epmc, doi:10.1103/physrevlett.94.101803.
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Measurement of the lifetime difference between Bs mass eigenstates. Physical review letters. 2005 Mar;94(10):101803.

Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

March 2005

Volume

94

Issue

10

Start / End Page

101803

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences