7th ComHEP: Colombian Meeting on High Energy Physics

Session

Theory and Phenomenology

28 Nov 2022, 14:00

Conveners

Theory and Phenomenology

• Oscar Zapata (Universidad de Antioquia)

60. The Higgs Boson

Daniel De Florian (International Center for Advanced Studies (AR))

28/11/2022, 14:00

62. The X17 anomaly: status and prospects

Enrico Nardi

28/11/2022, 14:45

53. Multicomponent scalar dark matter: recent developments

Oscar Zapata

28/11/2022, 16:00

Dark Matter / Cosmology / Astroparticles

Regular Talk (15'+5')

In this talk I will discuss some recent developments concerning scenarios of multi-component scalar dark matter based on a single ZN symmetry.

32. Decay constants and mass spectrum of pseudoscalars mesons

Ruben Hernando Criollo Estrella (Universidad de Nariño)

28/11/2022, 16:20

Theory - Phenomenology

Regular Talk (15'+5')

The Schwinger-Dyson equations (DSE) were obtained from a mass functional generation $M(p)$ for a fermion propagator. The DSE are obtained, which are analogous to the Euler-Lagrange equations in Quantum field theory (QFT), since they are the equations of motion of the Green's functions . The DSE's are an infinite set of integral equations coupled to each other and it is only possible to solve...

42. $\mathrm{SU}(4)$ weak singlet leptoquark in $R_{K^{(*)}}$ flavor anomalies

Oscar David Rosero Cárdenas (Universidad de Nariño)

28/11/2022, 16:40

Theory - Phenomenology

Regular Talk (15'+5')

We present a detailed study of a proposed model to explain the experimental hints of new physics in B meson decays within the frameork of the Pati-Salam unification. The model is based on the local gauge group SU$(4)_L\otimes$SU$(4)_R \otimes$SU$(2)_L \otimes$U$(1)^\prime$ and part of its gauge bosons are (3,1)2/3 vector leptoquarks. The key feature of the model is that SU$(4)_R$ is broken at...

15. Scalar coupling evolution in a non-perturbative QCD resummation scheme

Dr John David Gómez Aguirre

28/11/2022, 17:00

Theory - Phenomenology

Regular Talk (15'+5')

I will talk about the Standard Model scalar coupling ($\lambda$) evolution in a particular QCD resummation scheme, where the QCD coupling becomes infrared finite due to the
presence of a dynamically generated gluon mass, leading to the existence of a non-perturbative infrared fixed point. We discuss how this scheme can be
fixed taking recourse to phenomenological considerations in the...

4. Chern-Simons on the Null Plane

German Ramos

28/11/2022, 17:20

Theory - Phenomenology

Short Talk (5')

We present a canonical quantization for Chern-Simons
on the Null Plane coordinates using the Dirac procedure and the
Faddeev-Jackiw procedure. The constraint structure when using
null-plane coordinates is considered and the gauge generators are
derivated.

2. Representaciones de Álgebras de Lie graduadas.

Juan Camilo Guzman Martinez (Universidad Nacional de Colombia, sede Bogotá), Mr Roberto Enrique Martinez Martinez

28/11/2022, 17:25

Theory - Phenomenology

Short Talk (5')

Se construye el algebra de Líe del grupo de Poincare para extenderlo a álgebras de Lie graduada adicionando generadores fermionicos. Se estudiarán representaciones irreducibles minimales de estas álgebras y los respectivos súpercampos para construir densidades lagrangianas invariantes bajo las álgebras graduadas.

14. Alternative 3-3-1 models: a comprehensive analysis

Yithsbey Giraldo Usuga (Universidad de Nariño)

28/11/2022, 17:30

Beyond the standard model

Short Talk (5')

We systematically review how anomaly-free 3-3-1 models, with and without exotic electric charges, can be constructed using as a basis closed sets of fermions that include each of the particles and antiparticles of all electrically charged fields. Our analysis reproduces not only the models known in the literature, but also shows the existence of several more independent models for one and...