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Abstract:

We investigate a charge asymmetry in tt̄γ production at the LHC that provides complementary information to the measured asymmetries in tt̄ production. We estimate the experimental uncertainty in its measurement at the LHC with 8TeV and 14TeV. We argue that, for new physics models that simultaneously reproduce the asymmetry excess in tt̄ production at the Tevatron and the SM-like asymmetry at the LHC, the measurement in tt̄γ production at the LHC is likely to deviate from the SM prediction. In two new physics models studied in detail we find that the deviations could be significant and observable at the 14TeV run. © The Authors.

Registro:

Documento: Artículo
Título:Shedding light on the tt̄ asymmetry: The photon handle
Autor:Aguilar-Saavedra, J.A.; Álvarez, E.; Juste, A.; Rubbo, F.
Filiación:Departamento de Física Teórica y Del Cosmos, Universidad de Granada, E-18071 Granada, Spain
CONICET, IFIBA Universidad de Buenos Aires, 1428 Buenos Aires, Argentina
Institució Catalana de Recerca i Estudis Avançats (ICREA), E-08010 Barcelona, Spain
Institut de Física D'Altes Energies (IFAE), E-08193 Bellaterra, Barcelona, Spain
Palabras clave:Hadronic colliders; Phenomenological models
Año:2014
Volumen:2014
Número:4
DOI: http://dx.doi.org/10.1007/JHEP04(2014)188
Título revista:Journal of High Energy Physics
Título revista abreviado:J. High Energy Phys.
ISSN:11266708
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11266708_v2014_n4_p_AguilarSaavedra

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Citas:

---------- APA ----------
Aguilar-Saavedra, J.A., Álvarez, E., Juste, A. & Rubbo, F. (2014) . Shedding light on the tt̄ asymmetry: The photon handle. Journal of High Energy Physics, 2014(4).
http://dx.doi.org/10.1007/JHEP04(2014)188
---------- CHICAGO ----------
Aguilar-Saavedra, J.A., Álvarez, E., Juste, A., Rubbo, F. "Shedding light on the tt̄ asymmetry: The photon handle" . Journal of High Energy Physics 2014, no. 4 (2014).
http://dx.doi.org/10.1007/JHEP04(2014)188
---------- MLA ----------
Aguilar-Saavedra, J.A., Álvarez, E., Juste, A., Rubbo, F. "Shedding light on the tt̄ asymmetry: The photon handle" . Journal of High Energy Physics, vol. 2014, no. 4, 2014.
http://dx.doi.org/10.1007/JHEP04(2014)188
---------- VANCOUVER ----------
Aguilar-Saavedra, J.A., Álvarez, E., Juste, A., Rubbo, F. Shedding light on the tt̄ asymmetry: The photon handle. J. High Energy Phys. 2014;2014(4).
http://dx.doi.org/10.1007/JHEP04(2014)188