Artículo
Search for a Structure in the B^0_s π± Invariant Mass Spectrum with the ATLAS Experiment
Aaboud, M.; Aad, G.; Abbott, B.; Abdinov, O.; Abeloos, B.; Alconada Verzini, María Josefina
; Alonso, Francisco
; Arduh, Francisco Anuar
; Dova, Maria Teresa
; Hoya, Joaquín
; Monticelli, Fernando Gabriel
; Wahlberg, Hernan Pablo
; Bossio Sola, Jonathan David
; Daneri, María Florencia
; Devesa, Maria Roberta
; Marceca, Gino
; Otero y Garzon, Gustavo Javier
; Piegaia, Ricardo Nestor
; Sacerdoti, Sabrina
; Zinonos, Z.; Zinser, M.; Ziolkowski, M.; Živković, L.; Zobernig, G.; Zoccoli, A.; Zoch, K.; Nedden, M. zur; Zorbas, T. G.; Zou, R.; Zwalinski, L.; The ATLAS Collaboration
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Fecha de publicación:
02/2018
Editorial:
American Physical Society
Revista:
Physical Review Letters
ISSN:
0031-9007
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
A search for the narrow structure, X(5568), reported by the D0 Collaboration in the decay sequence X→Bs0π±, Bs0→J/ψϕ, is presented. The analysis is based on a data sample recorded with the ATLAS detector at the LHC corresponding to 4.9 fb-1 of pp collisions at 7 TeV and 19.5 fb-1 at 8 TeV. No significant signal was found. Upper limits on the number of signal events, with properties corresponding to those reported by D0, and on the X production rate relative to Bs0 mesons, ρX, were determined at 95% confidence level. The results are N(X)<382 and ρX<0.015 for Bs0 mesons with transverse momenta above 10 GeV, and N(X)<356 and ρX<0.016 for transverse momenta above 15 GeV. Limits are also set for potential Bs0π± resonances in the mass range 5550 to 5700 MeV.
Palabras clave:
ATLAS
,
HIGH ENERGY PHYSICS
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Articulos(IFLP)
Articulos de INST.DE FISICA LA PLATA
Articulos de INST.DE FISICA LA PLATA
Citación
Aaboud, M.; Aad, G.; Abbott, B.; Abdinov, O.; Abeloos, B.; et al.; Search for a Structure in the B^0_s π± Invariant Mass Spectrum with the ATLAS Experiment; American Physical Society; Physical Review Letters; 120; 2-2018; 202007-33
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