arXiv subjects

Călin Alexa

Publications and source records attributed to Călin Alexa.

5 recordsLinked to original sources

arXiv2026

Establishing a national master\`s programme in high-energy physics: lessons from a Romanian case study

The establishment of a joint coordinated national programme for graduate education represents a significant step in strengthening higher education systems and their alignment with international research environments. This paper examines the creation of the Romanian National Master\`s Programme in High-Energy Physics, the first initiative of its kind in the country. We outline the motivation for its development, based on the need to prepare students for active participation in large-scale international collaborations such as CERN, while also consolidating domestic expertise. The article describes the programme\`s design, including its multi-institutional structure, curriculum, and integration of research training, as well as the policy and administrative processes that enabled its implementation. Initial outcomes highlight the programme\`s contribution to student mobility, research engagement, and capacity building within the Romanian higher education system. Finally, we discuss lessons learned and future perspectives, situating the initiative within broader European efforts to modernise graduate education in the sciences.

physics.ed-ph↗

arXiv2026

Magboltz-GUI: a Python-based graphical user interface for Magboltz

Magboltz is widely used to compute electron transport properties in gas mixtures for detector applications. Its text-based workflow, however, can be a barrier for routine use, especially for users who are not already familiar with the program. We present Magboltz-GUI, a Python-based graphical user interface for defining gas mixtures, configuring simulation parameters, running Magboltz, and visualizing or exporting the resulting. The tool is designed as a lightweight frontend for common tasks in research and teaching environments involving gaseous detectors, including micropattern technologies such as Micromegas. This paper describes the software implementation, main interface components, and its availability as an open-source distributed package via Python tools.

physics.comp-ph↗

arXiv2025

An Interoperable Syntax for Gas Scattering Reaction Definition

We propose a unified, human-readable, machine-processable novel syntax/notation designed to comprehensively describe reactions, molecules and excitation states. Our notation resolves inconsistencies in existing data representations and facilitates seamless integration with computational tools. We define a structured syntax for molecular species, excitation states, and reaction mechanisms, ensuring compatibility with a wide range of scientific applications. We provide a reference implementation based on Parsing Expression Grammar syntax, enabling automated parsing and interpretation of the proposed notation. This work is available as an open-source project, enabling validation and fostering its adoption and further improvement by the scientific community. Our standardized framework provides gas scattering models with increased interoperability and accuracy.

physics.comp-ph↗

arXiv2024

Scalar sector of Type 2 Seesaw model explorations with multi-lepton final states

Originally motivated for the generation of (Majorana) neutrino masses, the Type 2 Seesaw Model has also a rich extended Higgs sector with, if accessible at the LHC, a distinctive phenomenology of neutral, charged and doubly-charged states. The goal of the work is to present an exhaustive phenomenological study of the most promising production and decay channels of pair or associated scalars, decaying directly or in cascades to Standard Model particles at the LHC. The study is complementary to the literature in that it highlights a previously unnoticed important sensitivity to a mixing angle. The ensuing uncertainty calls for a comprehensive experimental search strategy for the various processes. These processes can be studied within LHC energies reach, by comparing cutflow results for different final states. We carried out prospective search analyses with multi-lepton, jets and missing energy configurations, assuming an ATLAS-like detector at LHC and HL-LHC, for charged, doubly-charged, and for the first time neutral scalar productions. The work is a collaboration between ATLAS experimentalists and theoreticians in continuation of an endeavor that lead to previous published ATLAS analyses for the search of (doubly)charged Higgs bosons, aiming at proposals for future experimental searches.

hep-ph↗

arXiv2023

A new advance on dimensional-aware scalar, vector and matrix operations in C++

We review the dimensional check problem of the high-level programming languages, discuss the existing solutions, and come up with a new solution suited for scientific and engineering computations. Then, we introduce Univec, our C++ library designed to make scalar, vector, and matrix operations using units of measurement. Moreover, Univec supports dimensional-aware operations for complex numbers, quaternions, octonions, and sedenions. We provide tables of the relevant functions and operators implemented. Our library was compared with several existing solutions, and the results are shown in the performance section. Finally, we present our future plans for improving the current implementation.

physics.comp-ph↗