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We study the effects of non-standard interactions on the oscillation pattern of atmospheric neutrinos. We use neutrino oscillograms as our main tool to infer the role of non-standard interactions (NSI) parameters at the probability level in…

High Energy Physics - Phenomenology · Physics 2016-06-21 Animesh Chatterjee , Poonam Mehta , Debajyoti Choudhury , Raj Gandhi

We investigate Non-Standard Neutrino Interactions (NSI) arising from a flavor-sensitive $Z'$ boson of a new $U(1)'$ symmetry. We compare the limits from neutrino oscillations, coherent elastic neutrino-nucleus scattering, and $Z'$ searches…

High Energy Physics - Phenomenology · Physics 2019-03-28 Julian Heeck , Manfred Lindner , Werner Rodejohann , Stefan Vogl

We investigate standard and non-standard solar neutrino signals in direct dark matter detection experiments. It is well known that even without new physics, scattering of solar neutrinos on nuclei or electrons is an irreducible background…

High Energy Physics - Phenomenology · Physics 2015-08-04 Roni Harnik , Joachim Kopp , Pedro A. N. Machado

Monojet searches are a powerful way to place model-independent constraints on effective operators coupling dark matter to the standard model. For operators generated by the exchange of a scalar mediator, however, couplings to light quarks…

High Energy Physics - Phenomenology · Physics 2013-09-18 Tongyan Lin , Edward W. Kolb , Lian-Tao Wang

The scalar nonstandard interactions (NSI) can also introduce matter effect for neutrino oscillation in a medium. Especially the recent Borexino data prefers nonzero scalar NSI, $\eta_{ee} = - 0.16$. In contrast to the conventional vector…

High Energy Physics - Phenomenology · Physics 2019-06-25 Shao-Feng Ge , Stephen J. Parke

Scalar non-standard neutrino interactions (sNSI) is a scenario where neutrinos can develop a medium dependent contribution to their mass due to a new scalar mediator. This scenario differs from the commonly discussed vector mediator case in…

High Energy Physics - Phenomenology · Physics 2025-02-05 Peter B. Denton , Alessio Giarnetti , Davide Meloni

A search for dark matter particles is performed using events with large missing transverse momentum, at least one energetic jet, and no leptons, in proton-proton collisions at sqrt(s) = 13 TeV collected with the CMS detector at the LHC. The…

High Energy Physics - Experiment · Physics 2017-07-13 CMS Collaboration

We investigate the effects of a Non-Standard Interaction (NSI) extension of the standard model of particle physics on solar neutrino flavour oscillations. This NSI model introduces a $U_{Z^\prime}(1)$ gauge symmetry through a $Z^\prime$…

High Energy Physics - Phenomenology · Physics 2023-08-31 Ilídio Lopes

We consider dark sector particles (DSPs) that obtain sizeable interactions with Standard Model fermions from a new mediator. While these particles can avoid observation in direct detection experiments, they are strongly constrained by LHC…

High Energy Physics - Phenomenology · Physics 2015-07-28 Mikael Chala , Felix Kahlhoefer , Matthew McCullough , Germano Nardini , Kai Schmidt-Hoberg

A search for narrow and broad resonances with masses greater than 1.8 TeV decaying to a pair of jets is presented. The search uses proton-proton collision data at $\sqrt{s} =$ 13 TeV collected at the LHC, corresponding to an integrated…

High Energy Physics - Experiment · Physics 2020-05-14 CMS Collaboration

We present new constraints on neutrino secret interactions ($\nu$SI) by studying high-energy neutrinos from well-known astrophysical sources, such as SN1987A, the blazars TXS $0506+056$ and PKS $0735+178$, the active galaxy NGC 1068, and…

High Energy Physics - Phenomenology · Physics 2025-09-08 Maria Petropavlova

We consider light top squarks (stops) in the minimal supersymmetric Standard Model at the Large Hadron Collider. Here, we assume that the lightest neutralino is the lightest supersymmetric particle (LSP) and the lighter stop is the…

High Energy Physics - Phenomenology · Physics 2013-05-30 Manuel Drees , M. Hanussek , Jong Soo Kim

We complement a previous work \cite{Fortuna:2020wwx} using an EFT framework of dark matter and standard model interactions, with spin-one mediators, exploring a wider dark matter mass range, up to $6.4$ TeV. We use again bounds from…

High Energy Physics - Phenomenology · Physics 2023-04-11 Fabiola Fortuna , Pablo Roig

Neutrino-electron scattering experiments play a crucial role in investigating the non-standard interactions of neutrinos. In certain models, these interactions can include interference terms that may affect measurements. Next-generation…

High Energy Physics - Phenomenology · Physics 2023-05-19 Jong-Chul Park , Gaurav Tomar

Non-Standard neutral current Interactions (NSIs) of neutrinos with matter can alter the pattern of neutrino oscillation due to the coherent forward scattering of neutrinos on the medium. This effect makes long-baseline neutrino experiments…

High Energy Physics - Phenomenology · Physics 2016-08-03 Yasaman Farzan , Ian M. Shoemaker

We study the sensitivity of current and future long-baseline neutrino oscillation experiments to the effects of dimension six operators affecting neutrino propagation through Earth, commonly referred to as Non-Standard Interactions (NSI).…

High Energy Physics - Phenomenology · Physics 2016-03-23 Pilar Coloma

We analyze the energy and zenith angle distributions of the latest 2-year IceCube dataset of upward going atmospheric neutrinos to constrain sterile neutrinos at the eV scale in the 3+1 scenario. We find that the parameters favored by a…

High Energy Physics - Phenomenology · Physics 2016-08-17 Jiajun Liao , Danny Marfatia

Searches for Dark Matter at the LHC are commonly described in terms of simplified models with scalar, pseudo-scalar, vector and axial-vector mediators. In this work we explore the constraints imposed on such models from the observed Dark…

High Energy Physics - Phenomenology · Physics 2016-03-30 Tristan du Pree , Kristian Hahn , Philip Harris , Christos Roskas

We study the sensitivity of the stopped pion source of neutrinos at the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory to neutrino non-standard interactions (NSI). In particular, we find that simple event counting above…

High Energy Physics - Phenomenology · Physics 2017-06-28 Ian M. Shoemaker

The limitations of the Standard Model in explaining neutrino masses and neutrino mixing lead to the exploration of frameworks beyond the Standard Model (BSM). The possibility of neutrinos interacting with fermions via a scalar mediator is…

High Energy Physics - Phenomenology · Physics 2024-12-31 Moon Moon Devi , Dharitree Bezboruah , Abinash Medhi , Arnab Sarker , Debajyoti Dutta