Partial wave interference mechanism in gluonic dissociation of $J/ψ$

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dc.creatorPatra, Binoy K.
dc.creatorMenon, V. J.
dc.date2007-07-09
dc.date.accessioned2026-07-07T08:14:38Z
dc.date.available2026-07-07T08:14:38Z
dc.descriptionWe explicitly take into account the effect of hydrodynamic expansion profile on the gluonic breakup of $J/ψ$'s produced in an equilibrating parton plasma. Attention is paid to the space-time inhomogeneities as well as Lorentz frames while deriving new expressions for the gluon number density $n_g$, average dissociation rate $<\tildeΓ>$, and $ψ$ survival probability $S$. A novel type of partial wave {\em interference} mechanism is found to operate in the formula of $<\tildeΓ>$. Nonrelativistic longitudinal expansion fro small length of the initial cylinder is found to push the $S(p_T)$ graph above the no flow case considered by us earlier \cite{rev1}. However, relativistic flow corresponding to large length of the initial cylinder pushes the curve of $S(p_T)$ downwards at LHC but upwards at RHIC. This mutually different effect on $S(p_T)$ may be attributed to the different initial temperatures generated at LHC and RHIC.
dc.descriptionTalk given at DAE 2006, Indian Institute of Technology (IIT) Kharagpur, Dec 11-15, 2006; 4 pages with 3 figures
dc.identifierhttps://arxiv.org/abs/0707.1226
dc.identifierhttp://arxiv.org/abs/0707.1226
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/133193
dc.subjectHigh Energy Physics - Phenomenology
dc.titlePartial wave interference mechanism in gluonic dissociation of $J/ψ$
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