Pasupathy, J (1997) PCAC in Nuclear Medium and the Lovelace-Shapiro-Veneziano formula. [Preprint]
A simple way to enforce the Adler zero condition for pion amplitudes in the nuclear medium is to use the Lovelace quantization condition but with modified Regge Slope $\alpha'$ This latter is related to change in the gluon condensate. Increasing nuclear density leads to a relative increase in the Regge Slope $\alpha'$ Denoting this increase by a scale factor $\lambda$, the drop in the $\rho$-mass, $\Delta-N$ mass difference, increase in $\pi\pi$ scattering length, decrease of pion decay constant etc. are simply related to $\lambda$.
|Keywords:||PCAC;Regge slope;Gluon condensate;Nuclear medium|
|Department/Centre:||Division of Physical & Mathematical Sciences > Centre for Theoretical Studies|
|Date Deposited:||25 Aug 2008|
|Last Modified:||19 Sep 2010 04:13|
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