Drell-Yan phenomenology in the color dipole picture revisited

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Standard

Drell-Yan phenomenology in the color dipole picture revisited. / Flach Basso, Eduardo; Goncalves, Victor P.; Nemchik, Jan; Pasechnik, Roman; Šumbera, Michal.

I: Physical Review D (Particles, Fields, Gravitation and Cosmology), Vol. 93, Nr. 3, 034023, 11.02.2016.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Harvard

APA

CBE

MLA

Vancouver

Author

Flach Basso, Eduardo ; Goncalves, Victor P. ; Nemchik, Jan ; Pasechnik, Roman ; Šumbera, Michal. / Drell-Yan phenomenology in the color dipole picture revisited. I: Physical Review D (Particles, Fields, Gravitation and Cosmology). 2016 ; Vol. 93, Nr. 3.

RIS

TY - JOUR

T1 - Drell-Yan phenomenology in the color dipole picture revisited

AU - Flach Basso, Eduardo

AU - Goncalves, Victor P.

AU - Nemchik, Jan

AU - Pasechnik, Roman

AU - Šumbera, Michal

PY - 2016/2/11

Y1 - 2016/2/11

N2 - An extensive phenomenological study of the Drell-Yan (DY) process in pp collisions at various energies is performed in the color dipole framework. Besides previously studied γ∗ production we also include the Z0 contribution relevant at large dilepton invariant masses. We investigate the DY cross section differential in invariant mass, rapidity and transverse momentum of the dilepton pair in pp collisions at the RHIC and LHC. We consider three different phenomenological models for the dipole cross section and find a reasonable agreement with the available data. As a further test of the color dipole formalism, we also study the correlation function in azimuthal angle between the dilepton pair and a forward pion Δφ for different energies, dilepton rapidities and invariant masses. The characteristic double-peak structure of the correlation function around Δφ≃π found for very forward pions and low-mass dilepton pairs is sensitive to the saturation effects and can be tested by future DY measurements in pp collisions.

AB - An extensive phenomenological study of the Drell-Yan (DY) process in pp collisions at various energies is performed in the color dipole framework. Besides previously studied γ∗ production we also include the Z0 contribution relevant at large dilepton invariant masses. We investigate the DY cross section differential in invariant mass, rapidity and transverse momentum of the dilepton pair in pp collisions at the RHIC and LHC. We consider three different phenomenological models for the dipole cross section and find a reasonable agreement with the available data. As a further test of the color dipole formalism, we also study the correlation function in azimuthal angle between the dilepton pair and a forward pion Δφ for different energies, dilepton rapidities and invariant masses. The characteristic double-peak structure of the correlation function around Δφ≃π found for very forward pions and low-mass dilepton pairs is sensitive to the saturation effects and can be tested by future DY measurements in pp collisions.

U2 - 10.1103/PhysRevD.93.034023

DO - 10.1103/PhysRevD.93.034023

M3 - Article

VL - 93

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

SN - 1550-2368

IS - 3

M1 - 034023

ER -