181 citations · 406 across the 18 of their papers we have counts for
20 papers
Learning to detect continuous gravitational waves: an open data-analysis competition
Rodrigo Tenorio, Michael J. Williams, Joseph Bayley +29
We report results of a public data-analysis challenge, hosted on the open data-science platform Kaggle, to detect simulated continuous gravitational-wave signals (CWs). These are w…
BabyLlama-2: Ensemble-Distilled Models Consistently Outperform Teachers With Limited Data
Jean-Loup Tastet, Inar Timiryasov
We present BabyLlama-2, a 345 million parameter model distillation-pretrained from two teachers on a 10 million word corpus for the BabyLM competition. On BLiMP and SuperGLUE bench…
ALPs and HNLs at LHC and Muon Colliders: Uncovering New Couplings and Signals
Marta Burgos Marcos, Arturo de Giorgi, Luca Merlo +1
Axion-like particles (ALPs) and heavy neutral leptons (HNLs) are two well-motivated classes of particles beyond the Standard Model. It is intriguing to explore the new detection op…
Reconstruction of 400 GeV/c proton interactions with the SHiP-charm project
SHiP Collaboration
The SHiP-charm project was proposed to measure the associated charm production induced by 400 GeV/c protons in a thick target, including the contribution from cascade production. A…
Sensitivities to feebly interacting particles: public and unified calculations
Maksym Ovchynnikov, Jean-Loup Tastet, Oleksii Mikulenko +1
The increasing interest in Long-Lived Particles (LLPs) has led to numerous proposed experiments in order to search for them. However, the sensitivity estimates published by these e…
Baby Llama: knowledge distillation from an ensemble of teachers trained on a small dataset with no performance penalty
Inar Timiryasov, Jean-Loup Tastet
We present our submission to the BabyLM challenge, whose goal was to improve the sample efficiency of language models. We trained an ensemble consisting of a GPT-2 and small LLaMA…
Feebly Interacting Particles: FIPs 2022 workshop report
C. Antel, M. Battaglieri, J. Beacham +75
Particle physics today faces the challenge of explaining the mystery of dark matter, the origin of matter over anti-matter in the Universe, the origin of the neutrino masses, the a…
Sensitivities to feebly interacting particles: public and unified calculations
Maksym Ovchynnikov, Jean-Loup Tastet, Oleksii Mikulenko +1
The idea that new physics could take the form of feebly interacting particles (FIPs) - particles with a mass below the electroweak scale, but which may have evaded detection due to…
Probing HNL-ALP couplings at colliders
Arturo de Giorgi, Luca Merlo, Jean-Loup Tastet
Axion-like particles (ALPs) and heavy neutral leptons (HNLs) are both well-motivated extensions of the Standard Model. As ALPs couple to on-shell fermions proportionally to their m…
The Present and Future Status of Heavy Neutral Leptons
Asli M. Abdullahi, Pablo Barham Alzas, Brian Batell +42
The existence of non-zero neutrino masses points to the likely existence of multiple SM neutral fermions. When such states are heavy enough that they cannot be produced in oscillat…
Track reconstruction and matching between emulsion and silicon pixel detectors for the SHiP-charm experiment
SHiP Collaboration
In July 2018 an optimization run for the proposed charm cross section measurement for SHiP was performed at the CERN SPS. A heavy, moving target instrumented with nuclear emulsion…
The SHiP experiment at the proposed CERN SPS Beam Dump Facility
SHIP Collaboration
The Search for Hidden Particles (SHiP) Collaboration has proposed a general-purpose experimental facility operating in beam-dump mode at the CERN SPS accelerator to search for ligh…
Why interpretation matters for BSM searches: a case study with Heavy Neutral Leptons at ATLAS
Jean-Loup Tastet, Oleg Ruchayskiy, Inar Timiryasov
Experiments searching for Heavy Neutral Leptons (HNLs) typically interpret their results within simplified models consisting of a single HNL coupled to a single lepton flavor. Howe…
Reinterpreting the ATLAS bounds on heavy neutral leptons in a realistic neutrino oscillation model
Jean-Loup Tastet, Oleg Ruchayskiy, Inar Timiryasov
Heavy neutral leptons (HNLs) are hypothetical particles, motivated in the first place by their ability to explain neutrino oscillations. Experimental searches for HNLs are typicall…
Sensitivity of the SHiP experiment to dark photons decaying to a pair of charged particles
SHiP Collaboration, C. Ahdida, A. Akmete +331
Dark photons are hypothetical massive vector particles that could mix with ordinary photons. The simplest theoretical model is fully characterised by only two parameters: the mass…
Projected NA62 sensitivity to heavy neutral lepton production in decays
Jean-Loup Tastet, Evgueni Goudzovski, Inar Timiryasov +1
Heavy neutral leptons (HNLs) appear in many extensions of the Standard Model of particle physics. In this study, we investigate to which extent the NA62 experiment at CERN could im…
SND@LHC
SHiP Collaboration, C. Ahdida, A. Akmete +341
We propose to build and operate a detector that, for the first time, will measure the process at the LHC and search for feebly interacting particles (FIPs) in an unexplor…
Measurement of the muon flux for the SHiP experiment
SHiP Collaboration
The SHiP experiment will search for very weakly interacting particles beyond the Standard Model which are produced in a 400 \GeV/ proton beam dump at the CERN SPS. About $10^{11…
Dirac vs. Majorana HNLs (and their oscillations) at SHiP
Jean-Loup Tastet, Inar Timiryasov
SHiP is a proposed high-intensity beam dump experiment set to operate at the CERN SPS. It is expected to have an unprecedented sensitivity to a variety of models containing feebly…
Sensitivity of the SHiP experiment to Heavy Neutral Leptons
SHiP Collaboration
Heavy Neutral Leptons (HNLs) are hypothetical particles predicted by many extensions of the Standard Model. These particles can, among other things, explain the origin of neutrino…