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(p)QCD very successful for successful for short-distance short-distance (p)QCD very phenomena involving few few particles / quanta particles / quanta phenomena involving ● Q Q q u a r k o n i u m s p e c t r u m , M / Λ ≫ 1 Q Q C D + - ● H i g h - E j e t s i n h a d r o n i c c o l l i s i o n s a n d e e → q q g T E / Λ ≫ 1 T Q C D 2 ● D I S w i t h h i g h l y v i r t u a l p h o t o n √ Q / Λ ≫ 1 Q C D ● . . .

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e&m fields of boosted charge (v→1): J.D. Jackson: classical E&M 2d Coulomb potential valence charge density “shock wave” shock wave” “

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4 F o r a c t i o n w i t h ~ ρ o p e r a t o r : Poster by Elena Petreska ! Poster by Elena Petreska ! 4 G a u s s / M V ρ KNO in terms of small-x gluons (p T ~Q s ): KNO in terms of small-x gluons (p T ~Q s ): i ) a p p r o x . G a u s s i a n a c t i o n i i ) h i g h o c c u p a t i o n n u m b e r

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d + A u @ R H I C d + A u @ R H I C A A @ R H I C & L H C A A @ R H I C & L H C

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