The Scalar $B\to π$ and $D \to π$ Form Factors in QCD

Details The Scalar $B\to π$ and $D \to π$ Form Factors in QCD The Scalar $B\to π$ and $D \to π$ Form Factors in QCD

1998-02-25

arxiv.org/abs/hep-ph/9802412v1

Phys.Rev. D58 (1998) 054013

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages, 10 figures, Latex, epsfig

Scientific paper

10.1103/PhysRevD.58.054013

QCD sum rules on the light-cone are derived for the sum $f^+ + f^-$ of the $B\to \pi$ and $D\to \pi$ form factors taking into account contributions up to twist four. Combining the results with the corresponding $f^+$ form factors calculated previously by the same method, we obtain the scalar form factors $f^0$. Our sum rule predictions are compared with lattice results, current-algebra constraints, and quark-model calculations. Furthermore, we calculate decay distributions and the integrated width for the semileptonic decay $B \to \pi \bar{\tau}\nu_\tau$ which is sensitive to $f^0$. Finally, the dependence of the sum rules on the heavy quark mass and the asymptotic scaling laws are discussed.

Affiliated with

Also associated with

No associations

Rating

The Scalar $B\to π$ and $D \to π$ Form Factors in QCD does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The Scalar $B\to π$ and $D \to π$ Form Factors in QCD, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Scalar $B\to π$ and $D \to π$ Form Factors in QCD will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-283135