Czy chodziło Ci o: harmonia
... charmonia and unanticipated charmonia-like states, employed throughout the book. Charmonia are c ̄c bound states in QCD, similar to the positronium in QED, and, likewise, they are characterized by the following quantum numbers: • total ...
... charmonia [12] J// is, (2S) XcO Xc1 Xc2 3.097 3.686 3.415 3.51.1 3.556 Table 4.2 Branching ratios for various decay ... charmonia are 2me. The renormalization and factorization scales are taken as pur = p, F = y/(2m.)” + p} and the NRQCD ...
... Charmonia The heavy quark spin symmetry implies that the spin-flip for heavy quarks is suppressed when the initial state decays. Therefore, we may use the obtained heavy quark spin selection rules to discuss the strong decays into charmonia ...
... ( charmonia ) allows , in principle , a unique access to the QCD potential between two heavy ( quasistatic ) color charges . Charmonium ( and bottomomium ) spectroscopy in the vacuum has been widely and suc- cessfully used to infer the ...
... Charmonia states for instance are an attractive probe of the strongly coupled system of quarks and gluons as their sizes can be smaller than light hadrons (down to a few tenths of a fm) and having large binding energies (>500 MeV ...
... charmonia M A Faessler Sektion Physik , Ludwig - Maximilians - Universität , D - 8000 München 40 . Abstract . A 12 year old scenario is recalled : to extend meson spectroscopy and , in particular , the search for hybrids to the mass ...
... charmonia except relatively large OZI rule breaking decay of 7. ( effect B ) For charmonia in the hadronic phase , the following kinetic equation is considerd . The number of particle I¿ ( i = J / 4 , ' or c ) per unit rapidity in the ...
... charmonia suppression is expected to occur at the early stages of the collision . This suppression is attributed to color screening in the QGP [ 1 ] . However , some " normal " suppression is also produced by absorption in nuclear ...
... charmonia formation during QGP phase [12]) and on the statistical hadronization model (concerning charmonia production at freeze-out [13]), predict an enhancement (rather than suppression) of the J/ψ yield in heavy-ion collisions at LHC ...