$Υ(1s)\toγf_2(1270)$ Decay

Details $Υ(1s)\toγf_2(1270)$ Decay $Υ(1s)\toγf_2(1270)$ Decay

2009-09-30

arxiv.org/abs/0910.0012v1

Phys.Rev.D80:117501,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages

Scientific paper

10.1103/PhysRevD.80.117501

Decay $\Upsilon(1s)\to\gamma f_2(1270)$ is studied by an approach in which the tensor meson, $f_2(1270)$, is strongly coupled to gluons. Besides the strong suppression of the amplitude $\Upsilon(1s)\to\gamma gg, gg\to f_2$ by the mass of b-quark, d-wave dominance in $\Upsilon(1s)\to\gamma f_2(1270)$ is revealed from this approach, which provides a large enhancement. The combination of these two factors leads to larger $B(\Upsilon(1s)\to\gamma f_2(1270))$. The decay rate of $\Upsilon(1s)\to\gamma f_2(1270)$ and the ratios of the helicity amplitudes are obtained and they are in agreement with data.

Affiliated with

Also associated with

No associations

Rating

$Υ(1s)\toγf_2(1270)$ Decay 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 $Υ(1s)\toγf_2(1270)$ Decay, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and $Υ(1s)\toγf_2(1270)$ Decay will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-141464