Measurement of B→plv decay and V ub

Using a sample of 3.3x10{sup 6} {upsilon}(4S){yields}BB(bar sign) events collected with the CLEO II detector at the Cornell Electron Storage Ring (CESR), we measure B(B{yields}{rho}l{nu}), |V{sub ub}|, and the partial rate ({delta}{gamma}) in three bins of q{sup 2}{identical_to}(p{sub B}-p{sub {rho}}){sup 2}. We find B(B{sup 0}{yields}{rho}{sup -}l{sup +}{nu})=(2.69{+-}0.41{sub -0.40}{sup +0.35}{+-}0.50)x10{sup -4}, |V{sub ub}|=(3.23{+-}0.24{sub -0.26}{sup +0.23}{+-}0.58)x10{sup -3}, {delta}{gamma}(0

Keywords:

• Physics
• Particle physics
• Nuclear physics

• Correction
• Source
• Cite
• Save
• Machine Reading By IdeaReader