[seminar] [DANAS] [seminar RBI-T-WINNING] S. Wallon, 04.02., (četvrtak) 11 sati (c.t.) predavaona I krila

[Kornelija Passek-Kumericki]

                        SEMINAR  TEORIJSKE  FIZIKE


                          RBI-T-WINNING seminari

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Mueller-Navelet Jets at the LHC: Evidence for High-energy Resummation Effects


Samuel Wallon
Laboratoire de Physique Théorique, Orsay


    Datum:  četvrtak, 04. velajče 2016.
    Vrijeme: 11 sati c.t.
    Mjesto: IRB, predavaona I krila



Sazetak:

We study the production of two forward jets with a large interval of rapidity 
at hadron colliders, which was proposed by Mueller and Navelet as a possible 
test of the high energy dynamics of QCD, within a complete next-to-leading 
logarithm framework. We show that using the Brodsky-Lepage-Mackenzie procedure 
to fix the renormalization scale leads to a very good description of the recent 
CMS data at the LHC for the azimuthal correlations of the jets. We argue, based 
on the comparison of the lowest order non trivial corrections $O(\alpha_s^3)$ 
to the cross section with predictions of an exact calculation, that the 
inclusion of next-to-leading order corrections to the jet vertex significantly 
reduces the importance of energy-momentum non-conservation which is inherent to 
the BFKL approach, for an asymmetric jet configuration. Finally, we argue that 
the double parton scattering contribution is negligible in the kinematics of 
actual CMS measurements.




Voditeljica seminara: Kornelija Passek-Kumericki (passek at irb dot hr)
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