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Measurement of the forward-backward asymmetry of Λ and Λ¯ production in pp¯ collisions

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Measurement of the forward-backward asymmetry of Λ and Λ¯ production in pp¯ collisions. / D0 Collaboration.

In: Physical Review D, Vol. 93, No. 3, 032002, 09.02.2016.

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D0 Collaboration. / Measurement of the forward-backward asymmetry of Λ and Λ¯ production in pp¯ collisions. In: Physical Review D. 2016 ; Vol. 93, No. 3.

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@article{ffbfc0f051794eb58d410db8e2f48d9c,
title = "Measurement of the forward-backward asymmetry of Λ and Λ¯ production in pp¯ collisions",
abstract = "We study Λ and Λ¯ production asymmetries in pp¯→Λ(Λ¯)X, pp¯→J/ψΛ(Λ¯)X, and pp¯→μ±Λ(Λ¯)X events recorded by the D0 detector at the Fermilab Tevatron collider at s√=1.96  TeV. We find an excess of Λ{\textquoteright}s (Λ¯{\textquoteright}s) produced in the proton (antiproton) direction. This forward-backward asymmetry is measured as a function of rapidity. We confirm that the Λ¯/Λ production ratio, measured by several experiments with various targets and a wide range of energies, is a universal function of “rapidity loss,” i.e., the rapidity difference of the beam proton and the lambda.",
author = "Bertram, {Iain Alexander} and Harald Fox and Guennadi Borissov and Ratoff, {Peter Neil} and Anthony Ross and Williams, {Mark Richard James} and Darren Price and {D0 Collaboration}",
year = "2016",
month = feb,
day = "9",
doi = "10.1103/PhysRevD.93.032002",
language = "English",
volume = "93",
journal = "Physical Review D",
issn = "1550-7998",
publisher = "American Physical Society",
number = "3",

}

RIS

TY - JOUR

T1 - Measurement of the forward-backward asymmetry of Λ and Λ¯ production in pp¯ collisions

AU - Bertram, Iain Alexander

AU - Fox, Harald

AU - Borissov, Guennadi

AU - Ratoff, Peter Neil

AU - Ross, Anthony

AU - Williams, Mark Richard James

AU - Price, Darren

AU - D0 Collaboration

PY - 2016/2/9

Y1 - 2016/2/9

N2 - We study Λ and Λ¯ production asymmetries in pp¯→Λ(Λ¯)X, pp¯→J/ψΛ(Λ¯)X, and pp¯→μ±Λ(Λ¯)X events recorded by the D0 detector at the Fermilab Tevatron collider at s√=1.96  TeV. We find an excess of Λ’s (Λ¯’s) produced in the proton (antiproton) direction. This forward-backward asymmetry is measured as a function of rapidity. We confirm that the Λ¯/Λ production ratio, measured by several experiments with various targets and a wide range of energies, is a universal function of “rapidity loss,” i.e., the rapidity difference of the beam proton and the lambda.

AB - We study Λ and Λ¯ production asymmetries in pp¯→Λ(Λ¯)X, pp¯→J/ψΛ(Λ¯)X, and pp¯→μ±Λ(Λ¯)X events recorded by the D0 detector at the Fermilab Tevatron collider at s√=1.96  TeV. We find an excess of Λ’s (Λ¯’s) produced in the proton (antiproton) direction. This forward-backward asymmetry is measured as a function of rapidity. We confirm that the Λ¯/Λ production ratio, measured by several experiments with various targets and a wide range of energies, is a universal function of “rapidity loss,” i.e., the rapidity difference of the beam proton and the lambda.

U2 - 10.1103/PhysRevD.93.032002

DO - 10.1103/PhysRevD.93.032002

M3 - Journal article

VL - 93

JO - Physical Review D

JF - Physical Review D

SN - 1550-7998

IS - 3

M1 - 032002

ER -