A More Precise Extraction of |V_{cb}| in HQEFT of QCD

Details A More Precise Extraction of |V_{cb}| in HQEFT of QCD A More Precise Extraction of |V_{cb}| in HQEFT of QCD

2003-10-22

arxiv.org/abs/hep-ph/0310266v1

Mod.Phys.Lett. A19 (2004) 1379-1390

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, revtex, 4 figures

Scientific paper

10.1142/S0217732304013775

The more precise extraction for the CKM matrix element |V_{cb}| in the heavy quark effective field theory (HQEFT) of QCD is studied from both exclusive and inclusive semileptonic B decays. The values of relevant nonperturbative parameters up to order 1/m^2_Q are estimated consistently in HQEFT of QCD. Using the most recent experimental data for B decay rates, |V_{cb}| is updated to be |V_{cb}| = 0.0395 \pm 0.0011_{exp} \pm 0.0019_{th} from B\to D^{\ast} l \nu decay and |V_{cb}| = 0.0434 \pm 0.0041_{exp} \pm 0.0020_{th} from B\to D l \nu decay as well as |V_{cb}| = 0.0394 \pm 0.0010_{exp} \pm 0.0014_{th} from inclusive B\to X_c l \nu decay.

Affiliated with

Also associated with

No associations

Rating

A More Precise Extraction of |V_{cb}| in HQEFT of 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 A More Precise Extraction of |V_{cb}| in HQEFT of QCD, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A More Precise Extraction of |V_{cb}| in HQEFT of QCD will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-665142