Inclusive charmless semileptonic decay of Λ_b and Br(b ---> X_u l ν_l)

Somasundaram Arunagiri, Hitoshi Yamamoto

We study the inclusive charmless semileptonic decay of ${\Lambda }_b$, ${\Lambda }_b\to X_{u}l{\nu }_l$, in the framework of heavy quark expansion and find that the rate is substantially enhanced by spe…