Exclusive heavy quarkonium +γ production from e+e- annihilation into a virtual photon

Hee Sok Chung, Jungil Lee, Chaehyun Yu

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

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 s=10.58GeV. The nonrelativistic QCD 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=ηc and ηc(2S), respectively. Among P-wave spin-triplet charmonia, χc1 has a particularly large cross section of about 14 fb. The cross sections for bottomonium states ηb and χbJ 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.

Original languageEnglish
Article number074022
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume78
Issue number7
DOIs
Publication statusPublished - 2008 Oct 22

Fingerprint

cross sections
photons
conjugation
industrial plants
P waves
factorization
S waves
parity
quantum chromodynamics
kinetic energy
luminosity
quarks
estimates

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Exclusive heavy quarkonium +γ production from e+e- annihilation into a virtual photon. / Chung, Hee Sok; Lee, Jungil; Yu, Chaehyun.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 78, No. 7, 074022, 22.10.2008.

Research output: Contribution to journalArticle

@article{4aad8a43158649c9a767035bc52c075d,
title = "Exclusive heavy quarkonium +γ production from e+e- annihilation into a virtual photon",
abstract = "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 s=10.58GeV. The nonrelativistic QCD 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=ηc and ηc(2S), respectively. Among P-wave spin-triplet charmonia, χc1 has a particularly large cross section of about 14 fb. The cross sections for bottomonium states ηb and χbJ 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.",
author = "Chung, {Hee Sok} and Jungil Lee and Chaehyun Yu",
year = "2008",
month = "10",
day = "22",
doi = "10.1103/PhysRevD.78.074022",
language = "English",
volume = "78",
journal = "Physical review D: Particles and fields",
issn = "0556-2821",
publisher = "American Institute of Physics Publising LLC",
number = "7",

}

TY - JOUR

T1 - Exclusive heavy quarkonium +γ production from e+e- annihilation into a virtual photon

AU - Chung, Hee Sok

AU - Lee, Jungil

AU - Yu, Chaehyun

PY - 2008/10/22

Y1 - 2008/10/22

N2 - 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 s=10.58GeV. The nonrelativistic QCD 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=ηc and ηc(2S), respectively. Among P-wave spin-triplet charmonia, χc1 has a particularly large cross section of about 14 fb. The cross sections for bottomonium states ηb and χbJ 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.

AB - 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 s=10.58GeV. The nonrelativistic QCD 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=ηc and ηc(2S), respectively. Among P-wave spin-triplet charmonia, χc1 has a particularly large cross section of about 14 fb. The cross sections for bottomonium states ηb and χbJ 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.

UR - http://www.scopus.com/inward/record.url?scp=55149091959&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=55149091959&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.78.074022

DO - 10.1103/PhysRevD.78.074022

M3 - Article

VL - 78

JO - Physical review D: Particles and fields

JF - Physical review D: Particles and fields

SN - 0556-2821

IS - 7

M1 - 074022

ER -