LXXII International conference "Nucleus-2022: Fundamental problems and applications"

Dijet events with large rapidity separation in proton-proton collisions at √s = 2.76 TeV with CMS detector

13 Jul 2022, 17:50

20m

НИИЯФ, ЮК, ауд. 3-13

Oral talk (15 min + 5 min questions) Intermediate and high energies, heavy ion collisions

Speaker

Mr Anatolii Egorov (NRC KI – PNPI, Gatchina & St.Petersburg Polytechnic University, Russia)

Description

The new search for Balitsky-Fa­din-Kuraev-Lipatov (BFKL) evolution effects is performed at the Large Hadron Collider by the Compact Muon Solenoid experiment. The cross sections for inclusive and Mueller-Navelet dijet production are measured as a function of the rapidity separation between the jets in proton-proton collisions at √s = 2.76 TeV for jets with transverse momentum pT > 35 GeV and rapidity |y| < 4.7. Various dijet production cross section ratios are also measured. A veto on additional jets with pT > 20GeV is introduced to improve the sensitivity to the BFKL evolution. The measurement is compared with the predictions of various Monte Carlo models based on leading-order and next-to-leading-order calculations including the Dokshitzer-Gribov-Lipatov-Altarelli-Parisi leading-logarithm (LL) parton shower as well as the LL BFKL resummation.

Presentation Materials

nucleus-2022-abstract-EgorovAI_CMS.docx