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5th ComHEP: Colombian Meeting on High Energy Physics

November 30, 2020 to December 4, 2020
America/Bogota timezone

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Session

Heavy flavour

Dec 4, 2020, 8:00 AM

Conveners

Heavy flavour

  • Richard Benavides (ITM)
  • Jairo Alexis Rodriguez (Universidad Nacional de Colombia)

Presentation materials

There are no materials yet.

  1. 91. Review on CPV and mixing in the charm system
    Alberto Correa Dos Reis (CBPF - Centro Brasileiro de Pesquisas Físicas (BR))
    12/4/20, 8:00 AM
  2. 92. Searching for flavored new physics at the LHC
    Jorge Martin Camalich (Inst. Astrophys. of Canary Islands (ES))
    12/4/20, 8:40 AM
  3. 75. Challenges for the 3-3-1 models
    VICENTE PLEITEZ (UNIVERSIDADE ESTADUAL PAULISTA-UNESP)
    12/4/20, 9:20 AM
  4. 36. Production and properties of the Bc(2S)and B∗c(2S)states
    Manuel Alejandro Rodriguez Giraldo (Universidad de Antioquia (CO))
    12/4/20, 10:15 AM
    Heavy flavour
    Regular Talk (15'+5')

    We reported the production and properties studies of the Bc(2S)and B∗c(2S)states,based on an event sample of pp collisions at a center-of-mass energy of 13 TeV, col-lected by CMS detecter and corresponding to an integrated luminosity of 143 fb−1.The excited states are reconstructed in theBcπ+π−decay. The production rate ofBc(2S)and B∗c(2S)respect to the base state Bcas estimated within...

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  5. 25. Light pseudoscalar and axial meson spectroscopy via an AdS/QCD modified soft wall model
    Santiago Cortes (Universidad de los Andes)
    12/4/20, 10:35 AM
    Heavy flavour
    Regular Talk (15'+5')

    We describe the mass spectrum of light pseudoscalars and axial mesons using a modified softwall model with an UV cutoff. These mesons are included using an anomalous dimension that shift the conformal dimension of the non-interacting bulk fields. Using the extra UV cutoff approach, we can fit six eta and six a1 states organized in radial trajectories with an error close to 21.1%. We also...

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  6. 27. Flavored axions and the flavor problem
    Eduardo Rojas (Universidad de Nariño)
    12/4/20, 10:55 AM
    Heavy flavour
    Regular Talk (15'+5')

    A Peccei-Quinn~(PQ) symmetry is proposed, in order to generate in the Standard Model~(SM) quark sector a realistic mass matrix ansatz with five texture-zeros. Limiting our analysis to Hermitian mass matrices we show that this requires a minimum of 4 Higgs doublets. This model allows assigning values close to 1 for several Yukawa couplings, giving insight into the origin of the mass scales in...

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  7. 33. Addressing the R (D) and R (D*) anomalies within a charged scalar boson scenario
    Nestor Quintero (Universidad Santiago de Cali)
    12/4/20, 11:15 AM
    Heavy flavour
    Regular Talk (15'+5')

    The experimental measurements collected by the BABAR, Belle and LHCb experiments on the $R(D)$ and $R(D^\ast)$ observables indicate the existence of disagreement with respect to the Standard Model (SM) predictions. This discrepancy has been referred to as the "$R(D)$ and $R(D^\ast)$ anomalies", and consequently, a large number of studies considering the effects of new physics (NP) beyond MS...

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