P. Bisio

Searching for Light Dark Matter and Dark Sectors with the NA64 experiment at the CERN SPS

Yu. M. Andreev, A. Antonov, M. Ayala-Torres, D. Banerjee et autres

Since its approval in 2016, NA64 has pioneered Light Dark Matter (LDM) searches with electron [1], positron [2], muon [3], and hadron [4] beams. The experiment has successfully met its primary objectives, as outlined in the EPPS input (2018), and even exceed …

ch, it, us, ca, ru, de, es, cl (code pays fourni par la source)

Design and Characterization of the POKERINO Prototype for the POKER/NA64 Experiment at CERN

A. Antonov, P. Bisio, M. Bondí, A. Celentano et autres

The NA64 experiment at the CERN H4 beamline recently started a high-energy positron-beam program to search for light dark matter particles through a thick-target, missing-energy measurement. To fulfill the energy resolution requirement of the physics measurement σE/E≃2.5%/E[GeV]⊕0.5% and cope with the constraints …

it (code pays fourni par la source)

Design and characterization of the POKERINO prototype for the POKER/NA64 experiment at CERN

A. Antonov, P. Bisio, Mariangela Bondì, Andrea Celentano et autres

The NA64 experiment at CERN H4 beamline recently started a high-energy positron-beam program to search for light dark matter particles through a thick-target, missing-energy measurement. To fulfil the energy resolution requirement of the physics measurement $σ_E/E\simeq2.5\%/\sqrt{E\mathrm{[GeV}]} \oplus 0.5\%$ and cope with the …

Design and characterization of the POKERINO prototype for the POKER/NA64 experiment at CERN

A. Antonov, P. Bisio, Mariangela Bondì, Andrea Celentano et autres

The NA64 experiment at CERN H4 beamline recently started a high-energy positron-beam program to search for light dark matter particles through a thick-target, missing-energy measurement. To fulfil the energy resolution requirement of the physics measurement $σ_E/E\simeq2.5\%/\sqrt{E\mathrm{[GeV}]} \oplus 0.5\%$ and cope with the …

Proof of principle for a light dark matter search with low-energy positron beams at NA64

Yu. M. Andreev, А. Антонов, M. Ayala-Torres, D. Banerjee et autres

A bstract Thermal light dark matter (LDM) with particle masses in the 1 MeV–1 GeV range could successfully explain the observed dark matter abundance as a relic from the primordial Universe. In this picture, a new feeble interaction acts as a “portal” …

it, cl, br, ch, de, ec, es, ca (code pays fourni par la source)

High efficiency veto hadron calorimeter in the NA64 experiment at CERN

Yu. M. Andreev, A. Antonov, M. Ayala-Torres, D. Banerjee et autres

NA64 is a fixed-target experiment at the CERN SPS designed to search for Light particle Dark Matter (LDM) candidates with masses in the sub-GeV range. During the 2016-2022 runs, the experiment obtained the world-leading constraints, leaving however part of the well-motivated region …

Proof of principle for a light dark matter search with low-energy positron beams at NA64

Yu. M. Andreev, А. Антонов, D. Banerjee, B. Banto Oberhauser et autres

Thermal light dark matter (LDM) with particle masses in the 1 MeV - 1 GeV range could successfully explain the observed dark matter abundance as a relic from the primordial Universe. In this picture, a new feeble interaction acts as a "portal" …

Shedding light on dark sectors with high-energy muons at the NA64 experiment at the CERN SPS

Yu. M. Andreev, D. Banerjee, B. Banto Oberhauser, J. Bernhard et autres

A search for dark sectors is performed using the unique M2 beam line at the CERN Super Proton Synchrotron. New particles ( X ) could be produced in the bremsstrahlung-like reaction of high-energy 160 GeV positively charged muons impinging on an active …

ch, it, gr, cl, de, fr, br, ec, es, ca (code pays fourni par la source)

Dark-Sector Search via Pion-Produced η and η ′ Mesons Decaying Invisibly in the NA64h Detector

Yu. M. Andreev, A. Antonov, M. Ayala-Torres, D. Banerjee et autres

We present the first results from a proof-of-concept search for dark sectors via invisible decays of pseudoscalar η and η^{'} mesons in the NA64h experiment at the CERN SPS. Our novel technique uses the charge-exchange reaction of 50 GeV π^{-} on nuclei …

ch, cl, br, ca, it, gb, de, ec, es (code pays fourni par la source)

Shedding light on Dark Sectors with high-energy muons at the NA64 experiment at the CERN SPS

Yu. M. Andreev, D. Banerjee, B. Banto Oberhauser, J. Bernhard et autres

A search for Dark Sectors is performed using the unique M2 beam line at the CERN Super Proton Synchrotron. New particles ($X$) could be produced in the bremsstrahlung-like reaction of high energy 160 GeV muons impinging on an active target, $μN\rightarrowμNX$, followed …

Status and perspectives of the POKER detector for Dark Sector searches

A. Marini, A. Antonov, P. Bisio, M. Bondí et autres

The search for Dark Matter is one of the open questions in physics research beyond the Standard Model. The light Dark Matter hypothesis assumes particle candidates with a mass lower than few GeV/c2, interacting with ordinary matter through a new force; among …

it (code pays fourni par la source)

First constraints on the Lμ − Lτ explanation of the muon g-2 anomaly from NA64-e at CERN

Yu. M. Andreev, A. Antonov, D. Banerjee, B. Banto Oberhauser et autres

A bstract The inclusion of an additional U(1) gauge L μ − L τ symmetry would release the tension between the measured and the predicted value of the anomalous muon magnetic moment: this paradigm assumes the existence of a new, light Z …

it, ch, ca, gb, cl, gr, de, br, ec, es (code pays fourni par la source)