SUSY24: The 31st International Conference on Supersymmetry and Unification of Fundamental Interactions

Session

Joint Session: Flavour/Neutrinos/Dark Matter

13 Jun 2024, 15:05

Sala Gris II

34. MicroBooNE’s Beyond Standard Model Physics Program

José I. Crespo-Anadón (CIEMAT (Spain))

13/06/2024, 15:05

Flavour physics and neutrinos

Parallel Talk

The MicroBooNE detector, an 85-tonne active mass liquid argon time projection chamber (LArTPC) at Fermilab, is ideally suited to search for physics beyond the standard model due to its excellent calorimetric, spatial, and energy resolution. We will present several recent results using data recorded with Fermilab’s two neutrino beams: a first search for dark-trident scattering in a neutrino...

126. Status of the Short-Baseline Near Detector at Fermilab

Ines Gil Botella (Centro de Investigaciones Energéticas Medioambientales y Tecno)

13/06/2024, 15:25

Flavour physics and neutrinos

Parallel Talk

The Short-Baseline Near Detector (SBND) is one of three Liquid Argon Time Projection Chamber (LArTPC) neutrino detectors positioned along the axis of the Booster Neutrino Beam (BNB) at Fermilab, as part of the Short-Baseline Neutrino (SBN) Program. The detector is currently being commissioned and is expected to take neutrino data this year. SBND is characterized by superb imaging capabilities...

135. New Physics Results from the FASER Experiment

Margaret Lutz (CERN)

13/06/2024, 15:45

Flavour physics and neutrinos

Parallel Talk

FASER, the ForwArd Search ExpeRiment, has successfully taken data at the LHC since the start of Run 3 in 2022. From its unique location along the beam collision axis 480 m from the ATLAS IP, FASER has set leading bounds on dark photon parameter space in the thermal target region and has world-leading sensitivity to many other models of long-lived particles. In this talk, we will give a full...

131. Latest results from the NA64 experiment

Mirald Tuzi (Univ. of Valencia and CSIC (ES))

13/06/2024, 16:05

Dark matter, astroparticles and gravitational waves

Parallel Talk

NA64 is a fixed target experiment at the CERN SPS searching for dark sectors employing high energy ($\sim$ 100 GeV) electron, positron and muon beams. In this talk, we report its latest results on sub-GeV Dark Matter searches with the 2016-2022 statistics (Phys. Rev. Lett. 131 (2023) no.16, 161801). With the new data, NA64 is starting to probe for the first time the very interesting region of...

160. Recent Dark Matter searches at BaBar and implications on some SUSY models

Gabriele Simi (Universita e INFN, Padova (IT))

13/06/2024, 16:25

Dark matter, astroparticles and gravitational waves

Parallel Talk

This talk presents the results from the BaBar experiment on the search for dark matter candidates produced from $B$ mesons decays in $e^+e^−$ annihilations at 10.58 GeV .

We focus on two searches:

• The search for exotic B meson decays into a baryon and
  a dark sector anti-baryon; $B^+ \rightarrow \psi_D + p$ and $B \rightarrow \psi_D + \Lambda$. These decays could simultaneously...

112. Searches for LF/LN violation and hidden sectors in kaon decays at the NA62 experiment

Cristina Biino (INFN Torino (IT))

13/06/2024, 17:10

Flavour physics and neutrinos

Parallel Talk

Rare kaon decays are among the most sensitive probes of both heavy and light new physics beyond the Standard Model description thanks to high precision of the Standard Model predictions, availability of very large datasets, and the relatively simple decay topologies. The NA62 experiment at CERN is a multi-purpose high-intensity kaon decay experiment, and carries out a broad rare-decay and...

121. New results for searches of exotic decays with NA62 in beam-dump mode

Tomas Blazek (Faculty of Mathematics and Physics (FMFI)-Comenius University)

13/06/2024, 17:30

Dark matter, astroparticles and gravitational waves

Parallel Talk

The NA62 experiment at CERN took data in 2016–2018 with the main goal of measuring the $K^+ \rightarrow \pi^+ \nu \bar\nu$ decay.
In this talk we report on the search for visible decays of exotic mediators from data taken in "beam-dump" mode with the NA62 experiment. NA62 can be run as a "beam-dump" experiment by removing the kaon production target and moving the upstream collimators into a...

27. Dark linear seesaw mechanism

Henrique Brito Câmara (CFTP/IST, U. Lisboa)

13/06/2024, 17:50

Flavour physics and neutrinos

Parallel Talk

I will discuss our recent paper Phys.Lett.B 843 (2023) 138012 where we propose a minimal model where a dark sector, odd under a Z2 discrete symmetry, is the seed of lepton number violation in the neutrino sector at the loop level, in the context of the linear seesaw mechanism. We study the dark-matter phenomenology of the model, focusing on the case in which the stable particle is the lightest...

28. Axion paradigm with "coloured" neutrino masses

Aditya Batra (CFTP-IST, Lisbon)

14/06/2024, 12:00

Dark matter, astroparticles and gravitational waves

Parallel Talk

I will discuss our recent paper Phys.Rev.Lett. 132 (2024) 5, 051801, where we propose a generalized KSVZ-type axion framework in which coloured fermions and scalars act as two-loop Majorana neutrino-mass mediators. The global Peccei-Quinn symmetry under which exotic fermions are charged solves the strong CP problem. Within our general proposal, various setups can be distinguished by probing...

75. Singlet-triplet scotogenic model and fermionic dark matter

Anirban Karan

14/06/2024, 12:20

Dark matter, astroparticles and gravitational waves

Parallel Talk

Scotogenic models are phenomenologically very interesting as they generate neutrino masses through the mediation of $Z_2$-odd particles (which can serve as dark matter candidate) in loops. We have analysed singlet-triplet scotogenic model in the connection of direct detection possibility of the fermionic dark matter. This model appears compelling as it shows some SUSY-like behaviour without...

92. Boosting the production of sterile neutrino dark matter with self-interactions

Maria Isabel Dias Astros (University of Freiburg)

14/06/2024, 12:40

Dark matter, astroparticles and gravitational waves

Parallel Talk

Sterile neutrinos are well-motivated and simple dark matter (DM) candidates. However, sterile neutrino DM produced through oscillations by the Dodelson-Widrow mechanism is excluded by current X-ray observations and bounds from structure formation. One minimal extension, that preserves the attractive features of this scenario, is self-interactions among sterile neutrinos. In this work, we...

72. HNLs from Heavy ALP decays at Neutrino Facilities

Asli Abdullahi (IFT (Universidad Autónoma de Madrid))

Flavour physics and neutrinos

Parallel Talk

Heavy neutral leptons (HNL) are among the hypothetical ingredients behind nonzero neutrino masses. If sufficiently light, they can be produced and detected in fixed-target-like experiments. We show that if the HNLs belong to a richer -- but rather generic -- dark sector, their production rate can deviate dramatically from expectations associated to the standard-model weak interactions. In this...

64. Neutrino magnetic moment and inert doublet dark matter in a Type-III radiative scenario

Rukmani Mohanta

Flavour physics and neutrinos

Parallel Talk

We narrate dark matter, neutrino magnetic moment and mass in a Type-III radiative scenario. The Standard Model is enriched with three vector-like fermion triplets and two inert doublets to provide a suitable platform for the above phenomenological aspects. The inert scalars contribute to total relic density of dark matter in the Universe. Neutrino aspects are realized at one-loop with...

102. The BDF/SHiP experiment at the ECN3 high-intensity beam facility at the CERN SPS

Walter Marcello Bonivento (INFN Cagliari)

Flavour physics and neutrinos

Parallel Talk

The BDF/SHiP experiment is a general purpose intensity-frontier experiment for the search of feebly interacting GeV-scale particles and to perform neutrino physics measurements at the HI-ECN3 (high-intensity) beam facility at the CERN SPS, operated in beam-dump mode, taking full advantage of the available 4x$10^{19}$ protons per year at 400 GeV. The CERN Research Board recently decided in...