Exclusive spin-2 glueball production associated with J/ψ from e +e- annihilation

Taewon Kim, Jungil Lee

Research output: Contribution to journalArticle

Abstract

A recent analysis of the angular distribution of J/ψ produced with a resonance in e+e- annihilation by the Belle Collaboration disfavored the scenario of spin-0 glueball G0 production associated with J/ψ. This had been introduced as a possible solution for the large discrepancy between theory and experiment in the cross section for e +e- → J/ψ + ηc. The cross section and the angular distribution for the spin-2 glueball (G2) process e+e- → J/ψ + G2 is calculated by extending a previous study of the spin-0 case. The upper bound on the cross section is comparable to the leading-order nonrelativistic-quantum- chromodynamics predictions of σ(e+e- → J/ψ + ηc). The angular distribution of the process e +e- → J/ψ + G2 is proportional to 1 + cos2 θ*, which is consistent with the Belle measurement.

Original languageEnglish
Pages (from-to)1935-1938
Number of pages4
JournalJournal of the Korean Physical Society
Volume49
Issue number5
Publication statusPublished - 2006 Nov 1

Fingerprint

angular distribution
cross sections
quantum chromodynamics
predictions

Keywords

  • η
  • Glueball
  • J/ψ

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Exclusive spin-2 glueball production associated with J/ψ from e +e- annihilation. / Kim, Taewon; Lee, Jungil.

In: Journal of the Korean Physical Society, Vol. 49, No. 5, 01.11.2006, p. 1935-1938.

Research output: Contribution to journalArticle

@article{0f3b814ae1dd430199fb8e5a1690f922,
title = "Exclusive spin-2 glueball production associated with J/ψ from e +e- annihilation",
abstract = "A recent analysis of the angular distribution of J/ψ produced with a resonance in e+e- annihilation by the Belle Collaboration disfavored the scenario of spin-0 glueball G0 production associated with J/ψ. This had been introduced as a possible solution for the large discrepancy between theory and experiment in the cross section for e +e- → J/ψ + ηc. The cross section and the angular distribution for the spin-2 glueball (G2) process e+e- → J/ψ + G2 is calculated by extending a previous study of the spin-0 case. The upper bound on the cross section is comparable to the leading-order nonrelativistic-quantum- chromodynamics predictions of σ(e+e- → J/ψ + ηc). The angular distribution of the process e +e- → J/ψ + G2 is proportional to 1 + cos2 θ*, which is consistent with the Belle measurement.",
keywords = "η, Glueball, J/ψ",
author = "Taewon Kim and Jungil Lee",
year = "2006",
month = "11",
day = "1",
language = "English",
volume = "49",
pages = "1935--1938",
journal = "Journal of the Korean Physical Society",
issn = "0374-4884",
publisher = "Korean Physical Society",
number = "5",

}

TY - JOUR

T1 - Exclusive spin-2 glueball production associated with J/ψ from e +e- annihilation

AU - Kim, Taewon

AU - Lee, Jungil

PY - 2006/11/1

Y1 - 2006/11/1

N2 - A recent analysis of the angular distribution of J/ψ produced with a resonance in e+e- annihilation by the Belle Collaboration disfavored the scenario of spin-0 glueball G0 production associated with J/ψ. This had been introduced as a possible solution for the large discrepancy between theory and experiment in the cross section for e +e- → J/ψ + ηc. The cross section and the angular distribution for the spin-2 glueball (G2) process e+e- → J/ψ + G2 is calculated by extending a previous study of the spin-0 case. The upper bound on the cross section is comparable to the leading-order nonrelativistic-quantum- chromodynamics predictions of σ(e+e- → J/ψ + ηc). The angular distribution of the process e +e- → J/ψ + G2 is proportional to 1 + cos2 θ*, which is consistent with the Belle measurement.

AB - A recent analysis of the angular distribution of J/ψ produced with a resonance in e+e- annihilation by the Belle Collaboration disfavored the scenario of spin-0 glueball G0 production associated with J/ψ. This had been introduced as a possible solution for the large discrepancy between theory and experiment in the cross section for e +e- → J/ψ + ηc. The cross section and the angular distribution for the spin-2 glueball (G2) process e+e- → J/ψ + G2 is calculated by extending a previous study of the spin-0 case. The upper bound on the cross section is comparable to the leading-order nonrelativistic-quantum- chromodynamics predictions of σ(e+e- → J/ψ + ηc). The angular distribution of the process e +e- → J/ψ + G2 is proportional to 1 + cos2 θ*, which is consistent with the Belle measurement.

KW - η

KW - Glueball

KW - J/ψ

UR - http://www.scopus.com/inward/record.url?scp=33845565115&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33845565115&partnerID=8YFLogxK

M3 - Article

VL - 49

SP - 1935

EP - 1938

JO - Journal of the Korean Physical Society

JF - Journal of the Korean Physical Society

SN - 0374-4884

IS - 5

ER -