Publications (20)
Alpha radioactivity deep-underground as a probe of axion dark matter
Carlo Broggini, Giuseppe Di Carlo, Luca Di Luzio +1
We propose to investigate the time modulation of radioisotope decays deep underground as a method to explore axion dark matter. In this work, we focus on the -decay of heavy is…
Perturbative unitarity constraints on generic vector interactions
Daniele Barducci, Marco Nardecchia, Claudio Toni
We study perturbative unitarity constraints on generic interactions between fermion and vector fields, which are allowed to have generic quantum numbers under a $\prod_i SU(N_i) \o…
Weak nuclear decays deep-underground as a probe of axion dark matter
Jorge Alda, Carlo Broggini, Giuseppe Di Carlo +4
We investigate the time modulation of weak nuclear decays as a method to probe axion dark matter. To this end, we develop a theoretical framework to compute the -dependence of…
New bound on the vectorial axion-down-strange coupling from data
Diego Guadagnoli, Axel Iohner, Cristina Lazzeroni +3
We reinterpret publicly available data collected by NA62 from 2016 to 2024 to constrain the fundamental vectorial coupling of the QCD axion to down and stra…
Probing right-handed neutrinos dipole operators
Daniele Barducci, Enrico Bertuzzo, Marco Taoso +1
We consider the minimal see-saw extension of the Standard Model with two right-handed singlet fermions with mass at the GeV scale, augmented by an effective dipole operat…
Light vectors coupled to anomalous currents with harmless Wess-Zumino terms
Luca Di Luzio, Marco Nardecchia, Claudio Toni
We reconsider the case of light vectors coupled to anomalous fermionic currents, focussing on the interplay between UV and IR dynamics. Taking as a general framework the gauging of…
Combined Evidence for the Boson After PADME Results on Resonant Production in Positron Annihilation
Fernando Arias-Aragón, Giovanni Grilli di Cortona, Enrico Nardi +1
The Positron Annihilation into Dark Matter Experiment at the Laboratori Nazionali di Frascati has reported an excess of final-state events from positron annihilation on fi…
The decay as a QCD axion search: comparing reinterpretation approaches
Merna Abumusabh, Giulio Dujany, Diego Guadagnoli +2
Two recent independent analyses of Belle II data yield limits on -- the two-body mode to a light invisible particle…
The COSMIC WISPers White Paper: The physics case for Weakly Interacting Slim Particles
Ariel Arza, Deniz Aybas, Shyam Balaji +124
Axions and other very weakly interacting slim particles (WISPs), with masses below 1 GeV, arise naturally in many extensions of the Standard Model of particle physics. In particula…
Gauged -lepton chiral currents and
Luca Di Luzio, Marco Nardecchia, Claudio Toni
We consider a class of theories with a gauge symmetry associated with leptonic chiral currents. The low-energy effective field theory includes a light spin- boson coupl…
RadioAxion results on the search for axion dark matter under Gran Sasso
Carlo Broggini, Giuseppe Di Carlo, Luca Di Luzio +2
We report first results from RadioAxion, an underground experiment searching for axion dark matter through periodic modulations of radioisotope decays. We monitor the decay of…
A framework for missing-energy searches with anomalous light vectors
Luca Di Luzio, Marco Nardecchia, Stefano Scacco +1
We study light spin-1 gauge bosons coupled to electroweak-anomalous currents. For generic charge assignments, anomaly cancellation requires new fermions (anomalons) that are chiral…
The decay as a search for the QCD axion
Merna Abumusabh, Giulio Dujany, Diego Guadagnoli +2
We introduce a model-independent framework to reinterpret Belle II results using only public data, analytically reconstructing the mapping between true and reconstructed kinematic…
Probing a Light Scalar Boson with a few-MeV Proton Beam Deep Underground
Carlo Broggini, Giuseppe Di Carlo, Luca Di Luzio +2
We propose to investigate the production of a light scalar boson in low-energy proton-nucleus interactions using the 3.5 MV accelerator of the Bellotti Ion Beam Facility, loca…
Closing in on new chiral leptons at the LHC
Daniele Barducci, Luca Di Luzio, Marco Nardecchia +1
We study the phenomenological viability of chiral extensions of the Standard Model, with new chiral fermions acquiring their mass through interactions with a single Higgs. We exami…
Dark Matter emission at Belle II and NA62 in Minimal Flavor Violation framework
Federico Mescia, Shohei Okawa, Joel Swallow +1
Minimal Flavor Violation (MFV) provides a compelling framework for exploring physics beyond the Standard Model, in which new QCD-singlet fields transforming under the global $\math…
Constraints on a Light Leptophilic Scalar from Dark-Sector Couplings
Marco Graziani, Giacomo Landini, Federico Mescia +2
We study a minimal framework where a Majorana fermion dark matter particle interacts with a light scalar mediator coupled mainly to electrons. We examine both freeze-out and freeze…
Implications of under Rank-One Flavor Violation hypothesis
David Marzocca, Marco Nardecchia, Alfredo Stanzione +1
We study the implications of the observed excess in under the assumption of Rank-One Flavour Violation, i.e. that New Physics couples to a single specific di…
On the Atomki nuclear anomaly after the MEG-II result
Daniele Barducci, Davide Germani, Marco Nardecchia +2
Recent experimental results from the Atomki collaboration have reported the observation of anomalous effects in Beryllium, Helium and Carbon nuclear transitions that could hint at…
An updated view on the ATOMKI nuclear anomalies
Daniele Barducci, Claudio Toni
In view of the latest experimental results recently released by the ATOMKI collaboration, we critically re-examine the possible theoretical interpretation of the observed anomalies…