R. Mena Yanssen

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)

Improved limits on a new $Z'$ in $B-L$ scenarios with the NA64 experiment at CERN

T K ND TPC collaboration, Yu. M. Andreev, A Antonov, M. A. Ayala Torres et autres

Extensions of the Standard Model featuring an additional $U(1)_{B-L}$ gauge symmetry provide a compelling framework linking the origin of neutrino masses to possible dark matter candidates. The associated gauge boson, $Z'$, couples directly to Standard Model fermions and can be produced in …

Improved limits on a new $Z'$ in $B-L$ scenarios with the NA64 experiment at CERN

the NA Collaboration, Yu. M. Andreev, A Antonov, M. A. Ayala Torres et autres

Extensions of the Standard Model featuring an additional $U(1)_{B-L}$ gauge symmetry provide a compelling framework linking the origin of neutrino masses to possible dark matter candidates. The associated gauge boson, $Z'$, couples directly to Standard Model fermions and can be produced in …

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

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

Yu. M. Andreev, A. Antonov, M. A. 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 …

Improved limits on a new $Z'$ in $B-L$ scenarios with the NA64 experiment at CERN

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

Extensions of the Standard Model featuring an additional $U(1)_{B-L}$ gauge symmetry provide a compelling framework linking the origin of neutrino masses to possible dark matter candidates. The associated gauge boson, $Z'$, couples directly to Standard Model fermions and can be produced in …

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

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" …

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)

First constraints on the $L_μ-L_τ$ explanation of the muon $g-2$ anomaly from NA64-$e$ at CERN

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

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 $Z^\prime$ vector boson, with dominant coupling to …

Probing light dark matter with positron beams at NA64

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

We present the results of a missing-energy search for light dark matter which has a new interaction with ordinary matter transmitted by a vector boson, called dark photon A′ . For the first time, this search is performed with a positron beam …

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

Probing Light Dark Matter with positron beams at NA64

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

We present the results of a missing-energy search for Light Dark Matter which has a new interaction with ordinary matter transmitted by a vector boson, called dark photon $A^\prime$. For the first time, this search is performed with a positron beam by …