Measurement of the ϕ*η distribution of muon pairs with masses between 30 and 500 GeV in 10.4 fb−1 of pp¯ collisions

0452124 - FZÚ 2016 RIV US eng J - Článek v odborném periodiku
Abazov, V. M. - Abbott, B. - Acharya, B.S. - Kupčo, Alexander - Lokajíček, Miloš … celkem 366 autorů
Measurement of the ϕ*η distribution of muon pairs with masses between 30 and 500 GeV in 10.4 fb−1 of pp¯ collisions.
Physical Review D: Particles, Fields, Gravitation and Cosmology. Roč. 91, č. 7 (2015), "072002-1"-"072002-13". ISSN 1550-7998
Institucionální podpora: RVO:68378271
Klíčová slova: gluon * resummation * anti-p p * interaction * experimental results * DZERO * Batavia TEVATRON Coll * 1960 GeV-cms
Kód oboru RIV: BF - Elementární částice a fyzika vys. energií
Impakt faktor: 4.506, rok: 2015

We present a measurement of the distribution of the variable ϕη* for muon pairs with masses between 30 and 500 GeV, using the complete run II data set collected by the D0 detector at the Fermilab Tevatron proton-antiproton collider. This corresponds to an integrated luminosity of 10.4  fb−1 at s=1.96  TeV. The data are corrected for detector effects and presented in bins of dimuon rapidity and mass. The variable ϕη* probes the same physical effects as the Z/γ* boson transverse momentum, but is less susceptible to the effects of experimental resolution and efficiency. These are the first measurements at any collider of the ϕη* distributions for dilepton masses away from the Z→ℓ+ℓ- boson mass peak. The data are compared to QCD predictions based on the resummation of multiple soft gluons.
Trvalý link: http://hdl.handle.net/11104/0253143