1  V.A. Khoze ( IPPP, Durham ) (In collaboration with L. Harland-Lang, M.Ryskin and W.J. Stirling) Standard Candles for Central Exclusive Processes at.

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Presentation transcript:

1  V.A. Khoze ( IPPP, Durham ) (In collaboration with L. Harland-Lang, M.Ryskin and W.J. Stirling) Standard Candles for Central Exclusive Processes at the Tevaron and LHC DIS 2010

(based on Eur.Phys.J.C65: ,2010)

(star reactions!)

‘ Better to light a candle than to rant against darkness’ ( C onfucius ) Standard Candle Processes Standard Candle Processes

Are the early LHC runs, without proton taggers, able to check estimates for pp  p+A+p ? Possible checks of: (i) survival factor S 2 : W+gaps, Z+gaps (ii) generalised gluon f g :  p   p (iii) Sudakov factor T :  3 central jets (iv) soft-hard factorisation #(A+gap) evts (enhanced absorptive corr n ) #(inclusive A) evts with A = W, dijet,  … gap KMR: Divide et Impera

6 (Currently no complete theoretical description of onium properties.) (BABAR (2008) ( Still puzzles ) (spins- still unconfirmed) The heaviest and most compact quark-antiquark bound state in nature

Our 3 measurements are all in good agreement (factor “few”) with the Durham group predictions. * * * Prpospects ! (more coming soon )

d A killing blow to the wide range of theoretical models. Visualization of QCD Sudakov formfactor CDF PRD-2008 CDF D0-2010

 /KK mode as a spin-parity analyzer

Khoze, Martin and Ryskin, Eur.Phys.J. C23: 311 (2002) ; KMR+Stirling hep-ph/ fb Claim factor ~ 3 uncertainty ; Correlated to p+H+p H 3 candidates, 2 golden, 1 ? ? New data, Lower threshold, possible “observation” to come & SuperCHIC ! (HKRS-09) 36 fb  0.8 events

Too good to be true ?! Phys.Rev.Lett.102:242001,2009

(A. Alekseev-1958-positronium) (R.Pasechnik et al, Phys.Lett.B680:62-71,2009; HKRS, Eur.Phys.J.C65: ,2010 ) KMR-01

Important role of absorption effects

Currently active studies are in progress (both in theory and experiment).

Thank You 

JINST