Non-Valence Fock States in Heavy-to-Light Form Factors at Large Recoil

Details Non-Valence Fock States in Heavy-to-Light Form Factors at Large Recoil Non-Valence Fock States in Heavy-to-Light Form Factors at Large Recoil

2003-10-10

arxiv.org/abs/hep-ph/0310139v1

Eur.Phys.J.C33:s324-326,2004; Nucl.Phys.Proc.Suppl.133:174-177,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

3 pages, 2 figures, invited talk at the international conferences QCD '03, Montpellier, France, and EPS '03, Aachen, Germany

Scientific paper

10.1140/epjcd/s2003-03-219-9

We studied three-particle Fock state contributions to heavy-to-light form factors in the context of soft-collinear effective theory and found that they enter at leading power. These contributions are non-factorizable due to the appearance of endpoint singularities, however they do not violate spin-symmetry relations at leading power. In this talk I present their numerical estimation in a crude model in which the "soft overlap" contribution is cut off and find that they might lower the standard values for the form factors at maximum recoil significantly. Furthermore I briefly discuss the role of soft-collinear messenger modes in the region of soft overlap.

Affiliated with

Also associated with

No associations

Rating

Non-Valence Fock States in Heavy-to-Light Form Factors at Large Recoil 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 Non-Valence Fock States in Heavy-to-Light Form Factors at Large Recoil, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-Valence Fock States in Heavy-to-Light Form Factors at Large Recoil will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-216965