Decay Constants of $D_{sJ}^*$(2317) and $D_{sJ}$(2460)

Details Decay Constants of $D_{sJ}^*$(2317) and $D_{sJ}$(2460) Decay Constants of $D_{sJ}^*$(2317) and $D_{sJ}$(2460)

2004-10-22

arxiv.org/abs/hep-ph/0410301v1

Phys.Lett.B606:116-122,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

Scientific paper

10.1016/j.physletb.2004.11.035

The resonances $D_{sJ}^*$(2317) and $D_{sJ}$(2460) which are considered to be the $(0^+,1^+)$ doublet composed of charm and strange quarks have been discovered recently. Using the method of Rosner which is based on the factorization hypothesis, we calculate the lower bounds of the decay constants of these states from the branching ratios of $B\to D D_{sJ}$ measured by Belle and Babar.Our result shows that the decay constant of $D_{sJ}$(2460) is about twice that of $D_{sJ}^*$(2317) on the contrary to the naive expectation of the heavy quark symmetry which gives their equality. We show that this big deviation originates from the large internal motion of quarks inside these $P$-wave states and that our result is in good accord with the relativistic quark model calculation.

Affiliated with

Also associated with

No associations

Rating

Decay Constants of $D_{sJ}^*$(2317) and $D_{sJ}$(2460) 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 Decay Constants of $D_{sJ}^*$(2317) and $D_{sJ}$(2460), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Decay Constants of $D_{sJ}^*$(2317) and $D_{sJ}$(2460) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-424690