Color plasma oscillation in strangelets(7)

(0)1/kF,iR(αs)withrespectto|ReΠ00|/q2(unity),whereαs=g2/4πistheQCD nestructureconstant.Wethus

obtainthemodefrequencyω≈ωp.Itsagreementwiththebulkvaluestemsfromabsenceofthesurfacecolorchargedueto vac=0.Thevaluesofωpcalculatedasafunctionofηs=ms/µforαs=0.4havebeenexhibitedinFig.1.Wehavefoundthatωpdependsonmsonlyweakly.

IV.DAMPINGRATE(so)(¯qq)(vp) ig2ni/6µiisthe

WithintheframeworkoftheRPA,thedampingofthelongitudinalcoloroscillationmodeisdeterminedbyitsresonantenergytransferintoindividualexcitationsofparticle-holepairsofthequarkswhoseeigenenergiesaremadediscretebytheboundary.ThecorrespondingdampingratemaybederivedfromthepolarizationΠ00obtainedaboveas[8]

ΓRPA= 3ωp

π4µRq2 h(ν,ηi)

i

2 ln 1 64z(2z+ν)

222π2ν(8z3+16νz2+12ν2z+3ν3)z ηi+π 22.1+ln z2 ηiµR 1+32z(z+ν)

ν 1dzmax(1 ν,ηi) 2(z+ν)2 ηiz2 (26)

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