Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2008-08-12
Phys.Rev.D78:074022,2008
Physics
High Energy Physics
High Energy Physics - Phenomenology
22 pages, 1 figure, version published in Phys. Rev. D
Scientific paper
10.1103/PhysRevD.78.074022
We compute the cross section for exclusive production of a photon associated with a heavy quarkonium H of charge-conjugation parity C=+1 from e+ e- annihilation into a virtual photon at the center-of-momentum energy root-s=10.58 GeV. The NRQCD factorization formulas for the differential and total cross sections are obtained at leading order in the strong coupling and in the relative velocity of the heavy quark in the quarkonium rest frame. The predicted cross sections for the S-wave spin-singlet cases are about 80 fb and 50 fb for H = eta_c and eta_c(2S), respectively. Among P-wave spin-triplet charmonia, chi_{c1} has a particularly large cross section of about 14 fb. The cross sections for bottomonium states eta_b and chi_{bJ} are about 3 fb. A rough estimate of the background reveals that the signal significances for charmonium processes are sufficiently large enough to be detected with ease with the integrated luminosities available at the present B factories.
Chung Hee Sok
Lee Jungil
Yu Chaehyun
No associations
LandOfFree
Exclusive heavy quarkonium + gamma production from e+ e- annihilation into a virtual photon 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 Exclusive heavy quarkonium + gamma production from e+ e- annihilation into a virtual photon, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exclusive heavy quarkonium + gamma production from e+ e- annihilation into a virtual photon will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-202721