EFT at FASER$ν$

Falkowski, Adam; González-Alonso, Martín; Kopp, Joachim; Soreq, Yotam; Tabrizi, Zahra

doi:10.48550/arxiv.2105.12136

Cited by 4 publications

(23 citation statements)

References 77 publications

(125 reference statements)

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“…The vertical line at 6 × 10 −3 is the forecast at 90 % for FASERν found by [16] which is in qualitative agreement with our results. 6 The vertical line at 2.4 × 10 −3 shows the present bound from the flavor universality of π + decay [21].…”

Section: Signatures Of the Models In Forward Experimentssupporting

confidence: 92%

“…Ref. [16] discusses the bounds to be derived from FASERν on the effective couplings that can lead to processes π + → µ + ν τ and ν e + nucleus → τ + X. The bounds that we have found for FASERν are in good agreement with theirs.…”

Section: Introductionsupporting

confidence: 80%

“…II. We compare the bounds with the results of [16] which has performed a similar analysis within the framework of effective field theory. We also compare our bounds with the existing bounds and the one to be derived by upcoming DUNE experiment [37].…”

Section: Signatures Of the Models In Forward Experimentsmentioning

confidence: 99%

“…Drawing the black curve(s), we have assumed zero uncertainty in the flux normalization and fine binning. The vertical lines from left to right correspond to the expected DUNE bound [37], the bound from the lepton flavor universality constraint [21] and the forecast by [16] for FASERν.…”

Section: Signatures Of the Models In Forward Experimentsmentioning

confidence: 99%

“…FASERν and SND@LHC are dense detectors, designed to detect (and distinguish) all three kinds of neutrinos. These experiments can also be sensitive to a variety of new physics involving dark matter [8][9][10][11][12] or beyond SM interaction of ν µ [7,[13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

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Excess of Tau events at SND@LHC, FASER$ν$ and FASER$ν$2

Ansarifard,

Farzan

2021

Preprint

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During the run III of the LHC, the forward experiments FASERν and SND@LHC will be able to detect the Charged Current (CC) interactions of the high energy neutrinos of all three flavors produced at the ATLAS Interaction Point (IP). This opportunity may unravel mysteries of the third generation leptons. We build three models that can lead to a tau excess at these detectors through the following Lepton Flavor Violating (LFV) beyond Standard Model (SM) processes: (1) π + → µ + ν τ ; (2) π + → µ + ντ and (3) ν e + nucleus → τ + X.We comment on the possibility of solving the (g − 2) µ anomaly and the τ decay anomalies within these models. We study the potential of the forward experiments to discover the τ excess or to constrain these models in case of no excess. We then compare the reach of the forward experiments with that of the previous as well as next generation experiments such as DUNE. We also discuss how the upgrade of FASERν can distinguish between these models by studying the energy spectrum of the tau.

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Section: Signatures Of the Models In Forward Experimentssupporting

confidence: 92%

Section: Introductionsupporting

confidence: 80%

Section: Signatures Of the Models In Forward Experimentsmentioning

confidence: 99%

Section: Signatures Of the Models In Forward Experimentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Excess of Tau events at SND@LHC, FASER$ν$ and FASER$ν$2

Ansarifard,

Farzan

2021

Preprint

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Excess of tau events at SND@LHC, FASER$$\nu $$ and FASER$$\nu $$2

Ansarifard

Farzan

2022

Eur. Phys. J. C

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During the run III of the LHC, the forward experiments FASER$$\nu $$ ν and SND@LHC will be able to detect the Charged Current (CC) interactions of the high energy neutrinos of all three flavors produced at the ATLAS Interaction Point (IP). This opportunity may unravel the mysteries of the third generation leptons. We build three models that can lead to a tau excess at these detectors through the following Lepton Flavor Violating (LFV) beyond Standard Model (SM) processes: (1) $$\pi ^+ \rightarrow \mu ^+ \nu _\tau $$ π + → μ + ν τ ; (2) $$\pi ^+ \rightarrow \mu ^+ \bar{\nu }_\tau $$ π + → μ + ν ¯ τ and (3) $$\nu _e+\mathrm{nucleus}\rightarrow \tau +X$$ ν e + nucleus → τ + X . We comment on the possibility of solving the $$(g-2)_\mu $$ ( g - 2 ) μ anomaly and the $$\tau $$ τ decay anomalies within these models. We study the potential of the forward experiments to discover the $$\tau $$ τ excess or to constrain these models in case of no excess. We then compare the reach of the forward experiments with that of the previous as well as next generation experiments such as DUNE. We also discuss how the upgrade of FASER$$\nu $$ ν can distinguish between these models by studying the energy spectrum of the tau.

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The Forward Physics Facility: Sites, Experiments, and Physics Potential

Anchordoqui,

Ariga,

Ariga

et al. 2021

Preprint

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EFT at FASER$ν$

Cited by 4 publications

References 77 publications

Excess of Tau events at SND@LHC, FASER$ν$ and FASER$ν$2

Excess of Tau events at SND@LHC, FASER$ν$ and FASER$ν$2

Excess of tau events at SND@LHC, FASER$$\nu $$ and FASER$$\nu $$2

The Forward Physics Facility: Sites, Experiments, and Physics Potential

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