Study of double parton interactions in diphoton + dijet events in $p\bar{p}$ collisions at $\sqrt{s} = 1.96$ TeV

V.M. Abazov , U. Bassler (1) , G. Bernardi (2) , M. Besançon (1) , D. Brown (2) , E. Chapon (3) , F. Couderc (1) , F. Deliot (1) , D. Li (2) , Y. Enari (2) , A. Faure (1) , S. Greder (4) , G. Grenier (5) , Z. Hubacek (1) , T. Kurca (5) , P. Lebrun (5) , J. Lellouch (2) , F. Miconi (4) , I. Ripp-Baudot (4) , M. Titov (1) , B. Tuchming (1) , D. Vilanova (1) , L. Zivkovic (2) , M. Jaffré (6) , J.-F. Grivaz (6) , P. Pétroff (6) , T. Guillemin (6) , G. Sajot (7) , J. Stark (7) , M.-C. Cousinou (8) , A. Duperrin (8) , W. Geng (8) , E. Kajfasz (8) , S. Kermiche (8) , E. Nagy (8) , N. Osman (8)

1 IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers
2 LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies
3 LLR - Laboratoire Leprince-Ringuet
4 IPHC - Institut Pluridisciplinaire Hubert Curien
5 IPNL - Institut de Physique Nucléaire de Lyon
6 LAL - Laboratoire de l'Accélérateur Linéaire
7 LPSC - Laboratoire de Physique Subatomique et de Cosmologie
8 CPPM - Centre de Physique des Particules de Marseille

We use a sample of diphoton + dijet events to measure the effective cross section of double parton interactions, which is found to be $\sigma_{\rm eff} = 19.3$ $\pm$ $1.4({\rm stat})$ $\pm$ $7.8({\rm syst})$ mb. The sample was collected by the D0 detector at the Fermilab Tevatron collider in $p\bar{p}$ collisions at $\sqrt{s} = 1.96$ TeV and corresponds to an integrated luminosity of 8.7 fb$^{-1}$.

Domaines: Physique des Hautes Energies - Expérience [hep-ex]

V.M. Abazov, U. Bassler, G. Bernardi, M. Besançon, D. Brown, et al.. Study of double parton interactions in diphoton + dijet events in $p\bar{p}$ collisions at $\sqrt{s} = 1.96$ TeV. Physical Review D, 2016, 93, pp.052008. ⟨10.1103/PhysRevD.93.052008⟩. ⟨in2p3-01245313⟩