Discovering New Light States at Neutrino Experiments

By R. Essig, R. Harnik, Jared Kaplan, N. Toro. 2010

183 citations recorded by the source corpus.

Experiments designed to measure neutrino oscillations also provide major opportunities for discovering very weakly coupled states. In order to produce neutrinos, experiments such as LSND collide thousands of Coulombs of protons into fixed targets, while MINOS and MiniBooNE also focus and then dump beams of muons. The neutrino detectors beyond these beam dumps are therefore an excellent arena in which to look for long-lived pseudoscalars or for vector bosons that kinetically mix with the photon. We show that these experiments have significant sensitivity beyond previous beam dumps, and are able to partially close the gap between laboratory experiments and supernovae constraints on pseudoscalars. Future upgrades to the NuMI beamline and Project X will lead to even greater opportunities for discovery. We also discuss thin target experiments with muon beams, such as those available in COMPASS, and show that they constitute a powerful probe for leptophilic PNGBs.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/2d64ab9dad54f92822c5331f8afb05ab03d29b07

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Citations in the corpus

Constraining light dark matter with low-energy e+e− colliders (2013, unknown): “, [35, 36, 63, 68, 88–98]).”
Particle physics models for the 17 MeV anomaly in beryllium nuclear decays (2016, background): “LSND data imposes an even weaker constraint [79–81].”
Searching for long-lived particles beyond the Standard Model at the Large Hadron Collider (2019, background): “0.1 1 10 10010 - 9 10- 8 10- 7 10- 6 10- 5 10- 4 10- 3 Ki ne tic m ix in g pa ra m et er U70 E137 CHARM Phenix ATLAS (long-lived) KLOE SN LSND ɛ →h→2n1→2ɣD+2nD→4μ+Xpp 10% 40% 40% 40% 10% LHCb long-lived 35.9 fb-1 (13 TeV)CMS LHCbBaBar Orsay HADES 0.1% 1% 10% 40% ATLAS (prompt) CMS APEX/MAMI m [GeV]ɣ”
CMB-S4 Science Case, Reference Design, and Project Plan (2019, background): “The strongest current constraint is from the absence of meson decays to the mediator [200].”
Supernova 1987A constraints on sub-GeV dark sectors, millicharged particles, the QCD axion, and an axion-like particle (2018, methodology): “In particular, as in the DM case, axions with masses that are kinematically accessible but too weakly coupled to be produced at accelerator-based experiments are potentially probed by SN1987A [36].”
Physics beyond colliders at CERN: beyond the Standard Model working group report (2019, methodology): “The most significant constraint arises from SN1987a which has been used to constrain the parameter space for axions and axion-like particles [246–249].”
Collider probes of axion-like particles (2017, background): “Constraints on the ALP mass and coupling to leptons derived from various experiments (colored areas without boundaries, adapted from [80, 81]) along with the parameter region that can be probed using the decay Z → γa → γe+e−.”
A taste of dark matter: flavour constraints on pseudoscalar mediators (2014, unknown): “13 is beyond the scope of this paper. Constraints from the xed target CHARM experiment [98] are important when the pseudoscalar can be produced in K L, K+ and B decays [108] or through mixing with ˇ0 [112] and subsequently decays into e+e , + or . Since CHARM observed 0 events, we set a bound at 90%”