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Abstract:

The transverse polarization of Λ and Λ¯ hyperons produced in proton-proton collisions at a center-of-mass energy of 7 TeV is measured. The analysis uses 760 μb-1 of minimum bias data collected by the ATLAS detector at the LHC in the year 2010. The measured transverse polarization averaged over Feynman xF from 5×10-5 to 0.01 and transverse momentum pT from 0.8 to 15 GeV is -0.010±0.005(stat)±0.004(syst) for Λ and 0.002±0.006(stat)±0.004(syst) for Λ¯. It is also measured as a function of xF and pT, but no significant dependence on these variables is observed. Prior to this measurement, the polarization was measured at fixed-target experiments with center-of-mass energies up to about 40 GeV. The ATLAS results are compatible with the extrapolation of a fit from previous measurements to the xF range covered by this measurement. © 2015 CERN, for the ATLAS Collaboration.

Registro:

Documento: Artículo
Título:Measurement of the transverse polarization of Λ and Λ ¯ hyperons produced in proton-proton collisions at √s = 7 TeV using the ATLAS detector
Autor:Aad, G. et al.
Este artículo contiene 2875 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 2875 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Año:2015
Volumen:91
Número:3
DOI: http://dx.doi.org/10.1103/PhysRevD.91.032004
Título revista:Physical Review D - Particles, Fields, Gravitation and Cosmology
Título revista abreviado:Phys Rev D Part Fields Gravit Cosmol
ISSN:15507998
CODEN:PRVDA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15507998_v91_n3_p_Aad

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Citas:

---------- APA ----------
(2015) . Measurement of the transverse polarization of Λ and Λ ¯ hyperons produced in proton-proton collisions at √s = 7 TeV using the ATLAS detector. Physical Review D - Particles, Fields, Gravitation and Cosmology, 91(3).
http://dx.doi.org/10.1103/PhysRevD.91.032004
---------- CHICAGO ----------
Aad, G. "Measurement of the transverse polarization of Λ and Λ ¯ hyperons produced in proton-proton collisions at √s = 7 TeV using the ATLAS detector" . Physical Review D - Particles, Fields, Gravitation and Cosmology 91, no. 3 (2015).
http://dx.doi.org/10.1103/PhysRevD.91.032004
---------- MLA ----------
Aad, G. "Measurement of the transverse polarization of Λ and Λ ¯ hyperons produced in proton-proton collisions at √s = 7 TeV using the ATLAS detector" . Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 91, no. 3, 2015.
http://dx.doi.org/10.1103/PhysRevD.91.032004
---------- VANCOUVER ----------
Aad, G. Measurement of the transverse polarization of Λ and Λ ¯ hyperons produced in proton-proton collisions at √s = 7 TeV using the ATLAS detector. Phys Rev D Part Fields Gravit Cosmol. 2015;91(3).
http://dx.doi.org/10.1103/PhysRevD.91.032004