Volume 87, Number 6, September 2009
|Number of page(s)||6|
|Section||The Physics of Elementary Particles and Fields|
|Published online||01 October 2009|
Some peculiarities in response to filling up the Fermi sphere with quarks
Joint Institute for Nuclear Research - 141980 Dubna, Moscow Region, Russia
2 Institute of Theoretical and Experimental Physics - 117259, Moscow, Russia
3 Bogolyubov Institute for Theoretical Physics, National Academy of Sciences of Ukraine UA-03680, Kiev-143, Ukraine
Corresponding author: Gennady.Zinovjev@cern.ch
Accepted: 4 September 2009
Considering quarks as the quasi-particles of the model Hamiltonian with four-fermion interaction we study response to the process of filling up the Fermi sphere with quarks, calculate the vacuum pressure and demonstrate the existence of filled-in state degenerate with the vacuum one.
PACS: 11.10.-z – Field theory / 11.15.Tk – Other nonperturbative techniques
© EPLA, 2009
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