B-to-glueball form factor and glueball production inBdecays
نویسندگان
چکیده
منابع مشابه
Glueball Production in Hadron and Nucleus Collisions
We elaborate on the hypothesis that in high energy hadron hadron and nucleus nucleus collisions the lowest mass glueballs are copiously produced from the gluon rich environment especially at high energy density. We discuss the particular glueball decay modes: 0 ++ , 2 ++ → KK and 0 ++ → π + π − ℓ + ℓ − .
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Using a non–relativistic gluon bound–state model for glueballs (G), we compute the subprocess q q̄ → Gπ, and we therefrom derive the yield of the overall reaction p p̄ → GπX, assuming the glueball and the pion to be emitted with their transverse momenta large, opposite and approximately equal. Numerical results are presented in the form of pT spectra for various glueball candidates and their poss...
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A study of central meson production as a function of the difference in transverse momentum (dPT ) of the exchanged particles shows that undisputed qq mesons are suppressed at small dPT whereas the glueball candidates are enhanced and that the production cross section for different resonances depends strongly on the azimuthal angle between the two outgoing protons.
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The method of equivalent quanta is applied both to photon-photon and, by analogy, to double pomeron exchange in heavy-ion collisions. This WeizsäckerWilliams approach is used to calculate production cross sections for the glueball candidate fJ(1710) meson via photon-photon and pomeron-pomeron fusion in peripheral heavy-ion collisions at both RHIC and LHC energies. The impact-parameter dependenc...
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The spin of a glueball is usually taken as coming from the spin (and possibly the orbital angular momentum) of its constituent gluons. In light of the difficulties in accounting for the spin of the proton from its constituent quarks, the spin of glueballs is reexamined. The starting point is the fundamental QCD field angular momentum operator written in terms of the chromoelec-tric and chromoma...
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ژورنال
عنوان ژورنال: Journal of Physics G: Nuclear and Particle Physics
سال: 2010
ISSN: 0954-3899,1361-6471
DOI: 10.1088/0954-3899/37/8/085006