Abstract
We consider some observed decays of the {eta}{sub c} which should be forbidden in the perturbative QCD description of exclusive reactions: {eta}{sub c} {yields} pp, K{sup *} K-bar{sup *}, {phi}{phi}. It is shown explicitely that quark mass corrections do not help and still give a zero result. Also the experimental value for the decay rate {Gamma} ({eta}{sub c} {yields} pp-bar) is argued to be anomalously large. Implications for the perturbative QCD scheme are discussed and some other possible explanations of the data are suggested. (author).
Citation Formats
Anselmino, M, Caruso, F, and Murgia, F.
Problems with hadronic {eta}{sub c} decays and the perturbative QCD scheme for exclusive reactions.
Brazil: N. p.,
1990.
Web.
Anselmino, M, Caruso, F, & Murgia, F.
Problems with hadronic {eta}{sub c} decays and the perturbative QCD scheme for exclusive reactions.
Brazil.
Anselmino, M, Caruso, F, and Murgia, F.
1990.
"Problems with hadronic {eta}{sub c} decays and the perturbative QCD scheme for exclusive reactions."
Brazil.
@misc{etde_10128978,
title = {Problems with hadronic {eta}{sub c} decays and the perturbative QCD scheme for exclusive reactions}
author = {Anselmino, M, Caruso, F, and Murgia, F}
abstractNote = {We consider some observed decays of the {eta}{sub c} which should be forbidden in the perturbative QCD description of exclusive reactions: {eta}{sub c} {yields} pp, K{sup *} K-bar{sup *}, {phi}{phi}. It is shown explicitely that quark mass corrections do not help and still give a zero result. Also the experimental value for the decay rate {Gamma} ({eta}{sub c} {yields} pp-bar) is argued to be anomalously large. Implications for the perturbative QCD scheme are discussed and some other possible explanations of the data are suggested. (author).}
place = {Brazil}
year = {1990}
month = {Dec}
}
title = {Problems with hadronic {eta}{sub c} decays and the perturbative QCD scheme for exclusive reactions}
author = {Anselmino, M, Caruso, F, and Murgia, F}
abstractNote = {We consider some observed decays of the {eta}{sub c} which should be forbidden in the perturbative QCD description of exclusive reactions: {eta}{sub c} {yields} pp, K{sup *} K-bar{sup *}, {phi}{phi}. It is shown explicitely that quark mass corrections do not help and still give a zero result. Also the experimental value for the decay rate {Gamma} ({eta}{sub c} {yields} pp-bar) is argued to be anomalously large. Implications for the perturbative QCD scheme are discussed and some other possible explanations of the data are suggested. (author).}
place = {Brazil}
year = {1990}
month = {Dec}
}