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Vector $U$-bosons, often referred to as 'dark photons', are potential candidates for mediating dark matter interactions. In this study, we outline a procedure to derive theoretical constraints on the upper bound of the kinetic mixing…

High Energy Physics - Phenomenology · Physics 2024-12-04 Adrian William Romero Jorge , Elena Bratkovskaya , Taesoo Song , Laura Sagunski

The magnetic inelastic dark matter (MiDM) model, in which dark matter inelastically scatters off nuclei through a magnetic dipole interaction, has previously been shown to reconcile the DAMA/LIBRA annual modulation signal with null results…

Cosmology and Nongalactic Astrophysics · Physics 2015-03-17 Tongyan Lin , Douglas P. Finkbeiner

We propose a spectral decomposition to systematically extract information of dark matter at hadron colliders. The differential cross section of events with missing transverse energy (MET) can be expressed by a linear combination of basis…

High Energy Physics - Phenomenology · Physics 2018-01-08 Kyu Jung Bae , Tae Hyun Jung , Myeonghun Park

Future experiments dedicated to the detection of Coherent Elastic Neutrino-Nucleus Scattering may be powerful tools in probing light new physics. In this paper we study the sensitivity on light $Z'$ mediators of two proposed experiments: a…

High Energy Physics - Phenomenology · Physics 2022-06-24 Enrico Bertuzzo , Giovanni Grilli di Cortona , Lucas Magno D. Ramos

A search is conducted in proton-proton collisions at the Large Hadron Collider for photon-induced production $pp\rightarrow pp+ \gamma \gamma, (\gamma\gamma\rightarrow VX)$ of a visible particle $V$ decaying into a pair of same-flavour…

High Energy Physics - Experiment · Physics 2026-03-24 ATLAS Collaboration

We calculate the rate of production of hypothetical light vector bosons (LVBs) from nucleon-nucleon bremsstrahlung reactions in the soft radiation limit directly in terms of the measured nucleon-nucleon elastic cross sections. We use these…

Nuclear Theory · Physics 2016-11-23 Ermal Rrapaj , Sanjay Reddy

An attractive way to generate neutrino masses as required to account for current neutrino oscillation data involves the spontaneous breaking of lepton number. The resulting majoron may pick up a mass due to gravity. If its mass lies in the…

We propose a new ``disappearing positron track'' channel at Belle II to search for dark matter, in which a positron that is produced at the primary interaction vertex scatters with the electromagnetic calorimeter to produce dark matter…

High Energy Physics - Phenomenology · Physics 2024-05-15 Jinhan Liang , Zuowei Liu , Lan Yang

A novel mechanism to produce and detect Light Dark Matter in experiments making use of GeV electrons (and positrons) impinging on a thick target (beam-dump) is proposed. The positron-rich environment produced by the electromagnetic shower…

High Energy Physics - Experiment · Physics 2018-08-01 L. Marsicano , M. Battaglieri , M. Bondì , C. D. R. Carvajal , A. Celentano , M. De Napoli , R. De Vita , E. Nardi , M. Raggi , P. Valente

We present the design, data and results from the NEXT prototype for Double Beta and Dark Matter (NEXT-DBDM) detector, a high-pressure gaseous natural xenon electroluminescent time projection chamber (TPC) that was built at the Lawrence…

As any e$^+$e$^-$ scattering process can be accompanied by a hard photon emission from the initial state radiation, the analysis of the energy spectrum and angular distributions of those photons can be used to search for hard processes with…

High Energy Physics - Phenomenology · Physics 2021-07-28 Jan Kalinowski , Wojciech Kotlarski , Krzysztof Mekala , Pawel Sopicki , Aleksander Filip Zarnecki

Missing energy signals such as monojets are a possible signature of Dark Matter (DM) at colliders. However, neutrino interactions beyond the Standard Model may also produce missing energy signals. In order to conclude that new "missing…

High Energy Physics - Phenomenology · Physics 2016-05-11 Diogo Buarque Franzosi , Mads T. Frandsen , Ian M. Shoemaker

We study inelastic dark matter produced via freeze-in through a light mediator with a mass splitting below the electron-positron threshold. In this regime, the heavier dark matter state is naturally long-lived compared to the age of the…

High Energy Physics - Phenomenology · Physics 2025-09-25 Gordan Krnjaic , David McKeen , Riku Mizuta , Gopolang Mohlabeng , David E. Morrissey , Douglas Tuckler

Unstable particles (such as the vector mesons) have an important role to play in low mass dilepton production resulting from heavy ion collisions and this has been a subject of several investigations. Yet subtleties, such as the…

Nuclear Theory · Physics 2009-10-31 Jan-e Alam , Sourav Sarkar , Pradip Roy , Binayak Dutta-Roy , Bikash Sinha

The MAJORANA DEMONSTRATOR is an array of natural and enriched high purity germanium detectors that will search for the neutrinoless double-beta decay of 76-Ge and perform a search for weakly interacting massive particles (WIMPs) with masses…

We analyze the prospects for detection of light sub-GeV dark matter produced in experiments designed to study the properties of neutrinos, such as MiniBooNE, T2K, SHiP, DUNE etc. We present an improved production model, when dark matter…

High Energy Physics - Phenomenology · Physics 2017-02-15 Patrick deNiverville , Chien-Yi Chen , Maxim Pospelov , Adam Ritz

The Large Hadron electron Collider (LHeC) has been designed to push the field of deep inelastic scattering to the high energy and intensity frontier using an intense electron beam with a proton beam from the High Luminosity-Large Hadron…

High Energy Physics - Phenomenology · Physics 2023-05-17 Guo-yuan Huang , Sudip Jana , Alvaro S. de Jesus , Farinaldo S. Queiroz , Werner Rodejohann

Light dark matter with flavor-violating couplings to fermions may be copiously produced in the laboratory as missing energy from decays of SM particles. Here we study the effective Lagrangian of a light dark vector with generic dipole or…

High Energy Physics - Phenomenology · Physics 2024-05-02 Jordi Folch Eguren , Sophie Klingel , Emmanuel Stamou , Mustafa Tabet , Robert Ziegler

We study direct detection in simplified models of Dark Matter (DM) in which interactions with Standard Model (SM) fermions are mediated by a heavy vector boson. We consider fully general, gauge-invariant couplings between the SM, the…

High Energy Physics - Phenomenology · Physics 2016-08-26 Francesco D'Eramo , Bradley J. Kavanagh , Paolo Panci

We propose models of Dark Matter that account for the 511 keV photon emission from the Galactic Centre, compatibly with experimental constraints and theoretical consistency, and where the relic abundance is achieved via p-wave annihilations…

High Energy Physics - Phenomenology · Physics 2021-02-02 Yohei Ema , Filippo Sala , Ryosuke Sato