Česky
English
Výbor pro spolupráci ČR se Spojeným ústavem jaderných výzkumů Přihlášení
Longitudinal double-spin asymmetries for dijet production at intermediate pseudorapidity in polarized pp collisions at root s=200 GeV

Autor
Adam J. Creighton University, Omaha
Lednický Richard, promovaný fyzik DrSc. dr. h. c. Fyzikální ústav AV ČR, SÚJV Dubna
et al.  STAR collaboration

Rok
2018

Časopis
Physical Review D, 98 (3), 032011

Web


Obsah
We present the first measurements of the longitudinal double-spin asymmetry A(LL) for dijets with at least one jet reconstructed within the pseudorapidity range 0.8 < eta < 1.8. The dijets were measured in polarized pp collisions at a center-of-mass energy root s = 200 GeV. Values for A(LL) are determined for several distinct event topologies, defined by the jet pseudorapidities, and span a range of parton momentum fraction x down to x similar to 0.01. The measured asymmetries are found to he consistent with the predictions of global analyses that incorporate the results of previous RHIC measurements. They will provide new constraints on Delta g(x) in this poorly constrained region when included in future global analyses.

Příklad citace článku:
J. Adam, R. Lednický, . et al., "Longitudinal double-spin asymmetries for dijet production at intermediate pseudorapidity in polarized pp collisions at root s=200 GeV", Physical Review D, 98 (3), 032011 (2018)