Measurement of the absolute branching fractions for D - s ( - ) - - > l ( - ) ( nu ) over - bar ( l ) and extraction of the decay
نویسندگان
چکیده
Citation BABAR Collaboration et al. "Measurement of the absolute branching fractions for Ds->-nu and extraction of the decay constant fDs. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters.
منابع مشابه
Measurement of lepton momentum moments in the decay (B)over-bar -> Xl(nu)over-bar and determination of the heavy quark expansion parameters and vertical bar V-cb vertical bar
متن کامل
Evidence for the decay D0-->K(-)pi(+)pi(-)e(+)nu(e).
Using a 281 pb{-1} data sample collected at the psi(3770) with the CLEO-c detector, we present the first absolute branching fraction measurement of the decay D0-->K(-)pi(+)pi(-)e(+)nu(e) at a statistical significance of about 4.0 standard deviations. We find 10 candidates consistent with the decay D0-->K(-)pi(+)pi(-)e(+)nu(e). The probability that a background fluctuation accounts for this sign...
متن کاملMeasurement of the absolute branching fraction of Ds+ --> tau+ nutau decay.
Using a sample of tagged D(s)(+) decays collected near the D(s)(*+/-)D(s)(-/+) peak production energy in e(+)e(-) collisions with the CLEO-c detector, we study the leptonic decay D(s)(+)-->tau(+)nu(tau) via the decay channel tau(+)-->e(+)nu(e)nu(tau). We measure B(D(s)(+)-->tau(+)nu(tau))=(6.17+/-0.71+/-0.34)%, where the first error is statistical and the second systematic. Combining this resul...
متن کاملMeasurement of the Ratio of Branching Fractions B([bar
Citation Aaij, R., et al. "Measurement of the Ratio of Branching Fractions B([bar over B][superscript 0] D[superscript *+][superscript -][bar over ][subscript ])/B([bar over B][superscript 0] D[superscript *+][superscript -][bar over ][subscript ])." Phys. Rev. Lett. 115, 111803 (September 2015). © 2015 CERN, for the LHCb Collaboration As Published http://dx.doi.org/10.1103/PhysRevLett.115.1118...
متن کاملMeasurement of the Ratio of Branching Fractions B([bar
Citation Aaij, R., et al. "Measurement of the Ratio of Branching Fractions B([bar over B][superscript 0] D[superscript *+][superscript -][bar over ][subscript ])/B([bar over B][superscript 0] D[superscript *+][superscript -][bar over ][subscript ])." Phys. Rev. Lett. 115, 111803 (September 2015). © 2015 CERN, for the LHCb Collaboration As Published http://dx.doi.org/10.1103/PhysRevLett.115.1118...
متن کامل