Observation of the Y (4140) structure in the J/ψϕ mass spectrum in B±→ J/ψϕK± decays



Aaltonen, T, González, B Álvarez, Amerio, S, Amidei, D, Anastassov, A, Annovi, A, Antos, J, Apollinari, G, Appel, JA, Apresyan, A
et al (show 494 more authors) (2017) Observation of the Y (4140) structure in the J/ψϕ mass spectrum in B±→ J/ψϕK± decays. Modern Physics Letters A, 32 (26). 1750139 - 1750139.

Access the full-text of this item by clicking on the Open Access link.

Abstract

<jats:p> The observation of the [Formula: see text] structure in [Formula: see text] decays produced in [Formula: see text] collisions at [Formula: see text] TeV is reported with a statistical significance greater than 5 standard deviations. A fit to the [Formula: see text] mass spectrum is performed assuming the presence of a Breit–Wigner resonance. The fit yields a signal of [Formula: see text] resonance events, and resonance mass and width of [Formula: see text] and [Formula: see text], respectively. The parameters of this resonance-like structure are consistent with values reported from an earlier CDF analysis. </jats:p>

Item Type: Article
Depositing User: Symplectic Admin
Date Deposited: 11 Sep 2017 14:15
Last Modified: 01 Dec 2021 08:20
DOI: 10.1142/s0217732317501395
Open Access URL: https://arxiv.org/pdf/1101.6058v1.pdf
URI: https://livrepository.liverpool.ac.uk/id/eprint/3009403