Measurement of Semileptonic Branching Fractions of B Mesons to Narrow D** States
- Joint Institute for Nuclear Research, Dubna (Russian Federation)
- University of Oklahoma, Norman, Oklahoma 73019 (United States)
- Michigan State University, East Lansing, Michigan 48824 (United States); and others
Using the data accumulated in 2002-2004 with the D0 detector in proton-antiproton collisions at the Fermilab Tevatron collider with a center-of-mass energy of 1.96 TeV, the branching fractions of the decays B{yields}D{sub 1}{sup 0}(2420){mu}{sup +}{nu}{sub {mu}}X and B{yields}D{sub 2}*0(2460){mu}{sup +}{nu}{sub {mu}}X and their ratio have been measured: B(b{yields}B)xB(B{yields}D{sub 1}{sup 0}{mu}{sup +}{nu}{sub {mu}}X)xB(D{sub 1}{sup 0}{yields}D*-{pi}{sup +})=[0.087{+-}0.007(= stat){+-}0.014(syst)]%; B(b{yields}B)xB(B{yields}D{sub 2}*{sup 0}{mu}{sup +}{nu}{sub {mu}}X)xB(D{sub 2}*{sup 0}{yields}D*-{pi}{sup +})=[0.035{+-}0.00= 7(stat){+-}0.008(syst)]% and [B(B{yields}D{sub 2}*{sup 0}{mu}{sup +}{nu}{sub {mu}}X)xB(D{sub 2}*{sup 0}{yields}D*-{pi}{sup +})]/[B(B{yields}D{sub 1}{sup 0}{mu}{sup +}{nu}{sub {mu}}X)xB(D{sub 1}{sup 0}{yields}D*{sup -}{pi}{sup +})]=0.39{+-}0.09(stat) {+-}0.12(syst), where the charge conjugated states are always implied.
- OSTI ID:
- 20699463
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 17 Vol. 95; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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