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Neutrinos are the fundamental particles, blind to all kind of interactions except the weak and gravitational. Hence, they can propagate very long distances without any deviation. This characteristic property can thus provide an ideal…

High Energy Physics - Phenomenology · Physics 2020-05-20 Rudra Majhi , Soumya C , Rukmani Mohanta

One of the basic propositions of quantum field theory is Lorentz invariance. The spontaneous breaking of Lorentz symmetry at a high energy scale can be studied at low energy extensions like the Standard model in a model-independent way…

High Energy Physics - Phenomenology · Physics 2023-02-08 Nishat Fiza , Nafis Rezwan Khan Chowdhury , Mehedi Masud

Lorentz Invariance Violation (LIV) presents an intriguing opportunity to investigate fundamental symmetries, with neutrinos serving as a particularly effective probe for this phenomenon. Long-baseline neutrino experiments, such as the Deep…

High Energy Physics - Phenomenology · Physics 2024-10-15 Shashank Mishra , Saurabh Shukla , Lakhwinder Singh , Venktesh Singh

One of the current goals of neutrino experiments is to precisely determine standard unknown oscillation parameters such as the leptonic CP phase and mass hierarchy. Lorentz invariance violation represents a potential physics factor that…

High Energy Physics - Phenomenology · Physics 2024-12-02 Saurabh Shukla , Shashank Mishra , Lakhwinder Singh , Venktesh Singh

The neutrino oscillations offer great potential for probing new physics effects beyond the Standard Model. Any additional effect on neutrino oscillations can help understand the nature of these non-standard effects. The violation of…

High Energy Physics - Phenomenology · Physics 2023-07-26 Arnab Sarker , Abinash Medhi , Moon Moon Devi

Unified theories such as string theory and loop quantum gravity allow the Lorentz Invariance Violation (LIV) at the Planck Scale ($M_P \sim 10^{19}$ GeV). Using an effective field theory, this effect can be observed at low energies in terms…

High Energy Physics - Phenomenology · Physics 2023-08-15 Sanjib Kumar Agarwalla , Sudipta Das , Sadashiv Sahoo , Pragyanprasu Swain

Lorentz invariance is one of the basic ingredients of quantum field theories and violations of it are stringently constrained experimentally. Therefore, the possibility of Lorentz violation (LV) is usually realized at very high energy…

High Energy Physics - Phenomenology · Physics 2021-05-17 Andreas Crivellin , Fiona Kirk , Marco Schreck

We examine the impact of Lorentz Invariance Violation (LIV) in measuring the octant of $\theta_{23}$ and CP phases in the context of the Deep Underground Neutrino Experiment (DUNE). We consider the CPT-violating LIV parameters involving $e…

High Energy Physics - Phenomenology · Physics 2021-03-10 Sanjib Kumar Agarwalla , Mehedi Masud

In this paper, we have presented a comprehensive study of Lorentz Invariance Violation (LIV) in the context of atmospheric neutrino experiment ICAL and long-baseline experiments T2HK and DUNE. Our study consists of the full parameter space…

High Energy Physics - Phenomenology · Physics 2023-07-12 Deepak Raikwal , Sandhya Choubey , Monojit Ghosh

Observations of high energy neutrinos, both in the laboratory and from cosmic sources, can be a useful probe in searching for new physics. Such observations can provide sensitive tests of Lorentz invariance violation (LIV), which may be a…

High Energy Physics - Phenomenology · Physics 2018-03-23 Floyd W. Stecker

We propose a new model with the Majorana neutrino masses generated at two-loop level, in which the lepton number violation (LNV) processes, such as neutrinoless double beta decays, are mainly induced by the dimension-7 LNV effective…

High Energy Physics - Phenomenology · Physics 2015-07-14 Chao-Qiang Geng , Da Huang , Lu-Hsing Tsai , Qing Wang

We point out that if neutron--antineutron oscillation is observed in a free neutron oscillation experiment, it will put an upper limit on the strengths of Lorentz invariance violating (LIV) mass operators for neutrons at the level of…

High Energy Physics - Phenomenology · Physics 2015-05-27 K. S. Babu , Rabindra N. Mohapatra

Recently Rizzo studied the Lorentz Invariance Violation (LIV) in a brane scenario with one extra dimension where he found a non-zero mass for the four-dimensional graviton. This leads to the conclusion that five-dimensional models with LIV…

High Energy Physics - Theory · Physics 2012-12-21 Victor Santos , C. A. S. Almeida

Precise tests of Lorentz invariance in neutrinos can be performed using long baseline experiments such as MINOS and OPERA or neutrinos from astrophysical sources. The MINOS collaboration reported a measurement of the muonic neutrino…

High Energy Physics - Phenomenology · Physics 2015-05-30 Giacomo Cacciapaglia , Aldo Deandrea , Luca Panizzi

As the two phenomena, non-standard interaction (NSI) in neutrino propagation and Lorentz invariance violation (LIV) modify the Hamiltonian of neutrino oscillation in a similar fashion, it is very difficult to distinguish these two effects.…

High Energy Physics - Phenomenology · Physics 2023-05-10 Rudra Majhi , Dinesh Kumar Singha , Monojit Ghosh , Rukmani Mohanta

We propose a minimal extension to the Standard Model by introducing a Lorentz Invariance Violation (LIV) term into the Z boson's dispersion relation, expressed as $p_\mu p^\mu = M_Z^2 + \delta_{LIV} (p_\mu n^\mu)^2$, where $\delta_{LIV}$…

High Energy Physics - Phenomenology · Physics 2026-04-10 Juansher Jejelava , Zurab Kepuladze

We examine the sensitivity of the ESSnuSB and DUNE long-baseline neutrino experiments to isotropic, CPT-violating Lorentz Invariance Violation (LIV). Using detailed simulations for the 360 km and 540 km ESSnuSB baselines and the 1300 km…

High Energy Physics - Phenomenology · Physics 2025-12-09 Himanshu Bora , Debajyoti Dutta , Abinash Medhi

We study, within an effective field theory framework, $O(E^{2}/\Mpl^{2})$ Planck-scale suppressed Lorentz invariance violation (LV) effects in the neutrino sector, whose size we parameterize by a dimensionless parameter $\eta_{\nu}$. We…

High Energy Physics - Phenomenology · Physics 2010-03-04 David M. Mattingly , Luca Maccione , Matteo Galaverni , Stefano Liberati , Guenter Sigl

We suppose that the observed neutrino masses can be parametrised by a lepton number violating dimension-five operator, and calculate the mixing of double insertions of this operator into lepton flavour changing dimension-six operators of…

High Energy Physics - Phenomenology · Physics 2018-11-28 Sacha Davidson , Martin Gorbahn , Matthew Leak

Lorentz invariant violation (LIV) test is very important to study in the new physics. All the known astrophysical constraints either have a very small examinable parameter space, or are only suitable for some special theoretical models.…

Astrophysics · Physics 2009-08-07 Cong-Xin Qiu , Zi-Gao Dai
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