My physics topics
Theory of solid interactions (Quenching Factor)
For ionization efficiency in pure crystals, the Lindhard theory that neglects low energy effects, like atomic binding energy, is used to compute the Quenching Factor since 1963. For Silicon the Lindhard model fail below 4 keV. In order to solve this, I develop a modified integral equation that includes this low energy (sub-keV) effects, and is suited to solve numerically. I'm still working the physics that made up this new equation, like stopping power at low energies and straggling effects in crystals. And also going further to describe noble liquid scintillators (Xe, Ar) by light and charge yields.
CEVNS physics
The detection of CEVNs has inspiring new constraints on beyond the Standard Model (BSM) physics. It has motivated the development of larger scale detectors, and technology to extend current detector sensitivity into lower, sub-keV scale energy regimes. The data obtained from CEVNs, can be used in constrains non-standard neutrino interactions and searches of Dark Photons and probe light scalar Dark Matter candidates. As part of the CONNIE collaboration I have experience in exploring Dark Photons and ν-anomalous magnetic moment constrains using CONNIE data, and also making studies of background calibration.
Dark Matter searches
Dark Matter represents approximately the 30% of the energy in the universe and, SM doesn't include any description for now. The SM extension can be done by Axions, using strong-CP violation arguments, supersymmetry for WIMPS and scalar field Dark Matter. Using DAMIC data, I have done frequentist analysis to exclude low mass Dark Matter candidates. I have also work with the experimental design of the detector and I familiarized with the CCD's tecnology and software.
My Story
I began to study physics by my self since I was in junior high school, where I had a formation in electronic circuits designs and theory. In high school (CCH-SUR, UNAM) I participate in the SILADIN project of science. I win two contests in mathematics and I participate in a contest of software development. In the carrier I won an internship to Fermilab and I worked in the WH->WWW->lv-jj-jj channel to search the Higgs boson. Also, I have won other contests and, I have an active participation in international congress. I made my thesis with Alexis Aguilar Arévalo at ICN as part of DAMIC collaboration, where I developed an analysis of sensitivity for the experiment that latter was cross-checked by the collaboration. I have also experience with clean rooms environments and tests, see video. For the Master's I worked in the experimental design and set up of the test bench (vacuum capsule system, presion and temperature sensors installation) for CCD's in the Laboratory of detectors in ICN-UNAM, with the aid of Fermilab collaborators. For the PhD I started to be part of CONNIE collaboration, we're I was in charged to analyze the stability of Cu background stability peak used for calibration. For direct recommendation of my mentor (Alexis) I started to study the theoretical aspects of quenching factor, in order to explain the new data for Si that mismatch with Lindhard model, used since 1963. By several tries-studies, many work-discussions and a little of luck I solve the problem!.
Academic interests
Ionization theory and particle penetration governed by integro-differential
equations, experimental setup and software related to CCD’s detectors for
Dark Matter and Neutrino physics, testing models (dark photons, light boson mediators) beyond standard model (CEνNS and anomalous neutrino mag-
netic moment) in the sub-keV region using neutrino probes .