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BlackJAX is a library implementing sampling and variational inference algorithms commonly used in Bayesian computation. It is designed for ease of use, speed, and modularity by taking a functional approach to the algorithms' implementation.…

I present an exploration of the LHC phenomenology of the so-called top-philic ALP in the mass range between tens and hundreds of GeV. Searches through resonant production, such as ALP production in association with a $t\bar t$ pair are…

High Energy Physics - Phenomenology · Physics 2024-01-11 Simone Tentori

Axion Like Particles (ALPs) can be produced in Gamma Ray Bursts, altering the polarization of the electromagnetic emission in these events. For the first time, we derive bounds on the axion-photon coupling from polarization measurements of…

High Energy Physics - Phenomenology · Physics 2025-06-10 Boris Betancourt Kamenetskaia , Nissim Fraija , Gonzalo Herrera

We review searches for closed string axions and axion-like particles (ALPs) in IIB string flux compactifications. For natural values of the background fluxes and TeV scale gravitino mass, the moduli stabilisation mechanism of the LARGE…

High Energy Physics - Phenomenology · Physics 2017-04-26 Andreas Ringwald

HEALPix -- the Hierarchical Equal Area iso-Latitude Pixelization -- is a versatile data structure with an associated library of computational algorithms and visualization software that supports fast scientific applications executable…

Astrophysics · Physics 2011-05-05 K. M. Gorski , E. Hivon , A. J. Banday , B. D. Wandelt , F. K. Hansen , M. Reinecke , M. Bartelman

In this methods article, we provide a flexible but easy-to-use implementation of Direct Coupling Analysis (DCA) based on Boltzmann machine learning, together with a tutorial on how to use it. The package \texttt{adabmDCA 2.0} is available…

Quantitative Methods · Quantitative Biology 2025-11-05 Lorenzo Rosset , Roberto Netti , Anna Paola Muntoni , Martin Weigt , Francesco Zamponi

We discuss the leptonic ALP portal as a simple scenario that connects observed discrepancies in anomalous magnetic moments to the Dark Matter relic abundance. In this framework an axion-like particle in the multi-MeV range couples to SM…

High Energy Physics - Phenomenology · Physics 2024-03-28 Giovanni Armando , Paolo Panci , Joachim Weiss , Robert Ziegler

The existence of an axion-like particle (ALP) would induce anomalous scattering of light by light. This process can be probed at the Large Hadron Collider in central exclusive production of photon pairs in proton-proton collisions by…

High Energy Physics - Phenomenology · Physics 2018-08-01 Cristian Baldenegro , Sylvain Fichet , Gero von Gersdorff , Christophe Royon

Several extensions of the Standard Model predict the existence of Axion-Like Particles (ALPs), very light spin-zero bosons with a two-photon coupling. ALPs can give rise to observable effects in very-high-energy astrophysics. Above roughly…

High Energy Astrophysical Phenomena · Physics 2015-06-05 Marco Roncadelli , Alessandro De Angelis , Giorgio Galanti

Reactor neutrino experiments provide a rich environment for the study of axionlike particles (ALPs). Using the intense photon flux produced in the nuclear reactor core, these experiments have the potential to probe ALPs with masses below 10…

High Energy Physics - Phenomenology · Physics 2020-11-05 D. Aristizabal Sierra , V. De Romeri , L. J. Flores , D. K. Papoulias

Axions and axion-like particles (ALPs) appear in many extensions of the Standard Model and are being investigated as promising dark matter (DM) candidates. One viable methodology for their detection involves the investigation of the…

High Energy Astrophysical Phenomena · Physics 2024-04-18 Wen-Qing Guo , Zi-Qing Xia , Xiaoyuan Huang

An automatic optimisation procedure is proposed for some operational parameters of a Parallel-Plate Avalanche Counter with Optical Readout, a detector designed for heavy-ion tracking and imaging. Exploiting differentiable programming and…

Instrumentation and Detectors · Physics 2025-03-05 María Pereira Martínez , Xabier Cid Vidal , Pietro Vischia

Approximate linear programming (ALP) represents one of the major algorithmic families to solve large-scale Markov decision processes (MDP). In this work, we study a primal-dual formulation of the ALP, and develop a scalable, model-free…

Machine Learning · Computer Science 2018-04-30 Yichen Chen , Lihong Li , Mengdi Wang

We study the LHC phenomenology of an Axion Like Particle (ALP) that couples only derivatively with the top quark at tree level. We inspect the radiatively induced couplings with the SM fermions and (gauge) bosons and the associated…

High Energy Physics - Phenomenology · Physics 2024-06-19 Simone Blasi , Fabio Maltoni , Alberto Mariotti , Ken Mimasu , Davide Pagani , Simone Tentori

We update the globular cluster bound on massive ($m_a$ up to a few 100 keV) axion-like particles (ALP) interacting with photons. The production of such particles in the stellar core is dominated by the Primakoff $\gamma + Ze\to Ze +a$ and…

High Energy Physics - Phenomenology · Physics 2020-09-04 Pierluca Carenza , Oscar Straniero , Babette Döbrich , Maurizio Giannotti , Giuseppe Lucente , Alessandro Mirizzi

Active automata learning infers automaton models of systems from behavioral observations, a technique successfully applied to a wide range of domains. Compositional approaches have recently emerged to address scalability to concurrent…

Machine Learning · Computer Science 2026-04-02 Leo Henry , Thomas Neele , Mohammad Reza Mousavi , Matteo Sammartino

Sherpa is a hyperparameter optimization library for machine learning models. It is specifically designed for problems with computationally expensive, iterative function evaluations, such as the hyperparameter tuning of deep neural networks.…

Machine Learning · Computer Science 2020-05-11 Lars Hertel , Julian Collado , Peter Sadowski , Jordan Ott , Pierre Baldi

Axions and axion-like particles (ALPs) are well-motivated low-energy relics of high-energy extensions of the Standard Model (SM). We investigate the phenomenology of an ALP with flavor-changing couplings, and present a comprehensive…

High Energy Physics - Phenomenology · Physics 2022-09-28 Martin Bauer , Matthias Neubert , Sophie Renner , Marvin Schnubel , Andrea Thamm

This article introduces the Mathematica package \emph{HEPMath} which provides a number of utilities and algorithms for High Energy Physics computations in Mathematica. Its functionality is similar to packages like FormCalc or FeynCalc, but…

High Energy Physics - Phenomenology · Physics 2015-07-08 Martin Wiebusch

In string theory, the simultaneous existence of many Axion-Like Particles (ALPs) are suggested over a vast mass range, and a variety of potentials have been developed in the context of inflation. In such potentials shallower than quadratic,…

Cosmology and Nongalactic Astrophysics · Physics 2021-03-04 Masahiro Kawasaki , Wakutaka Nakano , Hiromasa Nakatsuka , Eisuke Sonomoto
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