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

(D0 Collaboration)

doi:10.1103/PhysRevD.93.032002

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

(D0 Collaboration)

Física

Joint Institute for Nuclear Research, Dubna
University of Oklahoma Bioengineering Center
Tata Institute of Fundamental Research, Mumbai
University of Illinois at Chicago
Florida State University
University of Manchester
Petersburg Nuclear Physics Institute (PNPI)
University of Michigan, Ann Arbor
Augustana College
Louisiana Tech University
Czech Technical University in Prague
Universidad de los Andes Colombia
Université Blaise Pascal
Fermi National Accelerator Laboratory
University of Virginia
Northeastern University
University of Kansas
CEA Saclay
Universidade do Estado do Rio de Janeiro
Panjab University
Universités Paris VI and VII
University of Freiburg
Lancaster University
Imperial College London
University of Mississippi
Northern Illinois University
University of Nebraska-Lincoln
Stony Brook University
Lomonosov Moscow State University
Taras Shevchenko National University of Kyiv
NASU - Institute of Nuclear Research
University of Texas at Arlington
Georg-August-Universität Göttingen
Michigan State University
Johannes Gutenberg University Mainz
University of Liverpool
Uppsala University
Centro de Investigacion y de Estudios Avanzados del Instituto Politécnico Nacional
University of Notre Dame
Rice University
Korea University
University of Delhi
American Association for the Advancement of Science
Aix-Marseille Université
Brown University
Southern Methodist University
FOM-Institute NIKHEF and University of Amsterdam/NIKHEF
Radboud University
University of Rochester
Institute for High Energy Physics
Deutsches Elektronen-Synchrotron (DESY)
University of California at Riverside
Indiana University Bloomington
Institute for Theoretical and Experimental Physics
Rutgers University–New Brunswick
Université de Strasbourg
Universite Claude Bernard Lyon 1
Université Paris-Sud
University College Dublin
Oklahoma State University
University of Science and Technology of China
Iowa State University
RWTH Aachen University
Centro Brasileiro de Pesquisas Fisicas
Consejo Nacional de Ciencia y Tecnologia Mexico
University College London
State University of New York at Buffalo
University of Maryland, College Park
University of Arizona
Purdue University
The Barcelona Institute of Science and Technology
Czech Academy of Sciences
IPN
Universidade Federal do ABC
Karlsruhe Institute of Technology
Ludwig Maximilian University of Munich
Purdue University Calumet
SLAC National Accelerator Laboratory
Brookhaven National Laboratory
Office of Science
Université Joseph Fourier Grenoble 1
Universidade Estadual Paulista Júlio de Mesquita Filho
Northwestern University
Oregon State University
Langston University
Charles University
Princeton University
University of Washington
CERN

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4 Citas (Scopus)

Resumen

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.

Idioma original	Inglés
Número de artículo	032002
Publicación	Physical Review D
Volumen	93
N.º	3
DOI	https://doi.org/10.1103/PhysRevD.93.032002
Estado	Publicada - 9 feb. 2016

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@article{7e24eb6ba8bd4195bcbacc1b9d8dd716,

title = "Measurement of the forward-backward asymmetry of Λ and Λ ¯ production in p p ¯ 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'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.",

author = "\{(D0 Collaboration)\} and Abazov, \{V. M.\} and B. Abbott and Acharya, \{B. S.\} and M. Adams and T. Adams and Agnew, \{J. P.\} and Alexeev, \{G. D.\} and G. Alkhazov and A. Alton and A. Askew and S. Atkins and K. Augsten and C. Avila and F. Badaud and L. Bagby and B. Baldin and Bandurin, \{D. V.\} and S. Banerjee and E. Barberis and P. Baringer and Bartlett, \{J. F.\} and U. Bassler and V. Bazterra and A. Bean and M. Begalli and L. Bellantoni and Beri, \{S. B.\} and G. Bernardi and R. Bernhard and I. Bertram and M. Besan{\c c}on and R. Beuselinck and Bhat, \{P. C.\} and S. Bhatia and V. Bhatnagar and G. Blazey and S. Blessing and K. Bloom and A. Boehnlein and D. Boline and Boos, \{E. E.\} and G. Borissov and M. Borysova and A. Brandt and O. Brandt and R. Brock and A. Bross and D. Brown and Bu, \{X. B.\} and B. Hoeneisen",

note = "Publisher Copyright: {\textcopyright} 2016 American Physical Society.",

year = "2016",

month = feb,

day = "9",

doi = "10.1103/PhysRevD.93.032002",

language = "Ingl{\'e}s",

volume = "93",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "3",

}

TY - JOUR

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

AU - (D0 Collaboration)

AU - Abazov, V. M.

AU - Abbott, B.

AU - Acharya, B. S.

AU - Adams, M.

AU - Adams, T.

AU - Agnew, J. P.

AU - Alexeev, G. D.

AU - Alkhazov, G.

AU - Alton, A.

AU - Askew, A.

AU - Atkins, S.

AU - Augsten, K.

AU - Avila, C.

AU - Badaud, F.

AU - Bagby, L.

AU - Baldin, B.

AU - Bandurin, D. V.

AU - Banerjee, S.

AU - Barberis, E.

AU - Baringer, P.

AU - Bartlett, J. F.

AU - Bassler, U.

AU - Bazterra, V.

AU - Bean, A.

AU - Begalli, M.

AU - Bellantoni, L.

AU - Beri, S. B.

AU - Bernardi, G.

AU - Bernhard, R.

AU - Bertram, I.

AU - Besançon, M.

AU - Beuselinck, R.

AU - Bhat, P. C.

AU - Bhatia, S.

AU - Bhatnagar, V.

AU - Blazey, G.

AU - Blessing, S.

AU - Bloom, K.

AU - Boehnlein, A.

AU - Boline, D.

AU - Boos, E. E.

AU - Borissov, G.

AU - Borysova, M.

AU - Brandt, A.

AU - Brandt, O.

AU - Brock, R.

AU - Bross, A.

AU - Brown, D.

AU - Bu, X. B.

AU - Hoeneisen, B.

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.

UR - https://www.scopus.com/pages/publications/84959558971

U2 - 10.1103/PhysRevD.93.032002

DO - 10.1103/PhysRevD.93.032002

M3 - Artículo

AN - SCOPUS:84959558971

SN - 2470-0010

VL - 93

JO - Physical Review D

JF - Physical Review D

IS - 3

M1 - 032002

ER -

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

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