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Curtailing The Dark Side In Non Standard Neutrino Interactions
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Book Synopsis Curtailing the Dark Side in Non-Standard Neutrino Interactions by :
Download or read book Curtailing the Dark Side in Non-Standard Neutrino Interactions written by and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In presence of non-standard neutrino interactions the neutrino flavor evolution equation is affected by a degeneracy which leads to the so-called LMA-Dark solution. It requires a solar mixing angle in the second octant and implies an ambiguity in the neutrino mass ordering. Non-oscillation experiments are required to break this degeneracy. We perform a combined analysis of data from oscillation experiments with the neutrino scattering experiments CHARM and NuTeV. We find that the degeneracy can be lifted if the non-standard neutrino interactions take place with down quarks, but it remains for up quarks. However, CHARM and NuTeV constraints apply only if the new interactions take place through mediators not much lighter than the electroweak scale. For light mediators we consider the possibility to resolve the degeneracy by using data from future coherent neutrino-nucleus scattering experiments. We find that, for an experiment using a stopped-pion neutrino source, the LMA-Dark degeneracy will either be resolved, or the presence of new interactions in the neutrino sector will be established with high significance.
Book Synopsis The Physics Associated with Neutrino Masses by : Diego Aristizabal Sierra
Download or read book The Physics Associated with Neutrino Masses written by Diego Aristizabal Sierra and published by Frontiers Media SA. This book was released on 2020-01-13 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.
Book Synopsis From the Fermi Scale to Cosmology by : Alberto Salvio
Download or read book From the Fermi Scale to Cosmology written by Alberto Salvio and published by Frontiers Media SA. This book was released on 2019-12-06 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Frontiers in Physics - 2017 & 2018 Editor's Choice by : Thomas Beyer
Download or read book Frontiers in Physics - 2017 & 2018 Editor's Choice written by Thomas Beyer and published by Frontiers Media SA. This book was released on 2019-02-22 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Launched in 2013, Frontiers in Physics consists of 18 specialties covering all areas of research in physics. With over 500 published manuscripts, the journal is now indexed in SCIE with the first impact factor coming in 2019. Frontiers in Physics aims to become the largest and most cited open access multidisciplinary physics journal. This eBook collects what the Specialty Chief Editors of the journal believed were the most interesting manuscripts published over the past two years. It is a nice collection, which will offer the reader the chance to have a quick overview of the specialties of the journal and offer a glimpse into the state of the art of physics. We must confess that it has been quite challenging to select only one article per specialty section given the many important manuscripts published by the journal in 2017 and 2018. We invite our reader to have a look at the journal homepage and browse what we have published so far. It includes articles on topics very different from each other, written by both early career scientists and well-known researchers, ranging from the indisputable advance of the field to the more bold. We hope you enjoy reading our first edition of the Frontiers in Physics Editor's Choice eBook! Professor Alex Hansen (Field Chief Editor) and Dr Claudio Bogazzi (Journal Manager)
Book Synopsis Neutrino Interactions with Nuclei and Dark Matter by : Paraskevi C. Divari
Download or read book Neutrino Interactions with Nuclei and Dark Matter written by Paraskevi C. Divari and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Even though the combined laboratory, astrophysical and cosmological evidence implies that neutrinos have masses, neutrinos provide only a small cosmic dark matter component. The study of solar neutrinos provides important information on nuclear processes inside the Sun as well as on matter densities. Moreover, supernova neutrinos provide sensitive probes for studying supernova explosions, neutrino properties and stellar collapse mechanisms. Neutrino-nucleus reactions at energies below 100 MeV play essential roles in core-collapse supernovae, explosive and r-process nucleosynthesis, as well as observation of solar and supernova neutrinos by earthbound detectors. On the other hand, recent experimental data of high-energy extragalactic neutrinos at 1 PeV open a new window to probe non-standard neutrino properties, such as resonant effects in the oscillation probability.
Book Synopsis Non-standard Neutrino Interactions at DUNE. by :
Download or read book Non-standard Neutrino Interactions at DUNE. written by and published by . This book was released on 2016 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here, we explore the effects of non-standard neutrino interactions (NSI) and how they modify neutrino propagation in the Deep Underground Neutrino Experiment (DUNE). We find that NSI can significantly modify the data to be collected by the DUNE experiment as long as the new physics parameters are large enough. For example, if the DUNE data are consistent with the standard three-massive-neutrinos paradigm, order 0.1 (in units of the Fermi constant) NSI effects will be ruled out. On the other hand, if large NSI effects are present, DUNE will be able to not only rule out the standard paradigm but also measure the new physics parameters, sometimes with good precision. We find that, in some cases, DUNE is sensitive to new sources of CP-invariance violation. We also explored whether DUNE data can be used to distinguish different types of new physics beyond nonzero neutrino masses. In more detail, we asked whether NSI can be mimicked, as far as the DUNE setup is concerned, by the hypothesis that there is a new light neutrino state.
Book Synopsis Non-standard Neutrino Interactions in the Mu-tau Sector by :
Download or read book Non-standard Neutrino Interactions in the Mu-tau Sector written by and published by . This book was released on 2015 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Non-Unitarity, Sterile Neutrinos, and Non-Standard Neutrino Interactions by :
Download or read book Non-Unitarity, Sterile Neutrinos, and Non-Standard Neutrino Interactions written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The simplest Standard Model extension to explain neutrino masses involves the addition of right-handed neutrinos. At some level, this extension will impact neutrino oscillation searches. In this work we explore the differences and similarities between the case in which these neutrinos are kinematically accessible (sterile neutrinos) or not (mixing matrix non-unitarity). We clarify apparent inconsistencies in the present literature when using different parametrizations to describe these effects and recast both limits in the popular neutrino non-standard interaction (NSI) formal- ism. We find that, in the limit in which sterile oscillations are averaged out at the near detector, their effects at the far detector coincide with non-unitarity at leading order, even in presence of a matter potential. We also summarize the present bounds existing in both limits and compare them with the expected sensitivities of near-future facilities taking the DUNE proposal as a bench- mark. We conclude that non-unitarity effects are too constrained to impact present or near future neutrino oscillation facilities but that sterile neutrinos can play an important role at long baseline experiments. The role of the near detector is also discussed in detail.
Book Synopsis General Description of Neutrino Oscillations with Non-standard Interactions by : Robert Szafron
Download or read book General Description of Neutrino Oscillations with Non-standard Interactions written by Robert Szafron and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Non-standard Neutrino Interactions in the Mu{u2013}tau Sector by :
Download or read book Non-standard Neutrino Interactions in the Mu{u2013}tau Sector written by and published by . This book was released on 2015 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: We discuss neutrino mass hierarchy implications arising from the effects of non-standard neutrino interactions on muon rates in high statistics atmospheric neutrino oscillation experiments like IceCube DeepCore. We concentrate on the mu–tau sector, which is presently the least constrained. It is shown that the magnitude of the effects depends strongly on the sign of the ϵ?? parameter describing this non-standard interaction. A simple analytic model is used to understand the parameter space where differences between the two signs are maximized. We discuss how this effect is partially degenerate with changing the neutrino mass hierarchy, as well as how this degeneracy could be lifted.
Book Synopsis Search for Neutrino Non-standard Interactions with ANTARES and KM3NeT-ORCA by : Nafis Rezwan Khab Chowdhury
Download or read book Search for Neutrino Non-standard Interactions with ANTARES and KM3NeT-ORCA written by Nafis Rezwan Khab Chowdhury and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Non-Standard Interactions in Propagation at the Deep Underground Neutrino Experiment by :
Download or read book Non-Standard Interactions in Propagation at the Deep Underground Neutrino Experiment written by and published by . This book was released on 2016 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here, 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). All relevant parameters entering the oscillation probabilities (standard and non-standard) are considered at once, in order to take into account possible cancellations and degeneracies between them. We find that the Deep Underground Neutrino Experiment will significantly improve over current constraints for most NSI parameters. Most notably, it will be able to rule out the so-called LMA-dark solution, still compatible with current oscillation data, and will be sensitive to off-diagonal NSI parameters at the level of [epsilon] ~ $ \mathcal{O} $ (0.05 - 0.5). We also identify two degeneracies among standard and non-standard parameters, which could be partially resolved by combining T2HK and DUNE data.
Book Synopsis Interpretation of MINOS Data in Terms of Non-standard Neutrino Interactions by :
Download or read book Interpretation of MINOS Data in Terms of Non-standard Neutrino Interactions written by and published by . This book was released on 2010 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: The MINOS experiment at Fermilab has recently reported a tension between the oscillation results for neutrinos and anti-neutrinos. We show that this tension, if it persists, can be understood in the framework of non-standard neutrino interactions (NSI). While neutral current NSI (non-standard matter effects) are disfavored by atmospheric neutrinos, a new charged current coupling between tau neutrinos and nucleons can fit the MINOS data without violating other constraints. In particular, we show that loop-level contributions to flavor-violating [tau] decays are sufficiently suppressed. However, conflicts with existing bounds could arise once the effective theory considered here is embedded into a complete renormalizable model. We predict the future sensitivity of the T2K and NOvA experiments to the NSI parameter region favored by the MINOS fit, and show that both experiments are excellent tools to test the NSI interpretation of the MINOS data.
Book Synopsis Non-standard Neutrino Interaction Analysis with Atmospheric Neutrino Data in Super-Kamiokande I-IV and the Design of the Hyper-Kamiokande Outer Detector by : Mahdi Taani
Download or read book Non-standard Neutrino Interaction Analysis with Atmospheric Neutrino Data in Super-Kamiokande I-IV and the Design of the Hyper-Kamiokande Outer Detector written by Mahdi Taani and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Non-standard Neutrino Flavor Changing Interactions in Core Collapse Supernovae by : Philip Amanik
Download or read book Effects of Non-standard Neutrino Flavor Changing Interactions in Core Collapse Supernovae written by Philip Amanik and published by . This book was released on 2006 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: Non-standard neutrino flavor changing interactions are included in the core collapse supernova model, and their effects on the model are investigated. Analytical and numerical results are presented. The predictions from a model that includes the new neutrino interactions are found to be different from the predictions of the original model. The non-standard interactions are predicted by some extensions to the standard model, but no such interactions have been discovered or proven to exist. An example of an interaction which comes from R-parity violating Supersymmetry is discussed in detail in Chapter 1. Reviews of nuclear physics and the supernova model are also given in this chapter. The cross sections for neutrino flavor changing scattering in vacuum with nuclei and free nucleons are given in Chapter 1. Corrections which account for neutrinos scattering with nuclei in the core medium are given in Chapter 2. Uncertainties in the equation of state and composition of nuclear matter at high density, and the impact of these uncertainties on neutrino scattering cross sections are discussed in Chapter 2 as well. Analytical estimates of flavor changing scattering rates are calculated in Chapter 1 and a qualitative discussion of the effects on the model is then offered. Results from a one-zone core collapse numerical simulation are presented in Chapter 2. A detailed discussion of the code, and equations which describe the core are included in this chapter. Chapter 3 outlines how to include these interactions in a full simulation with neutrino transport and hydrodynamics.
Book Synopsis Testing Nonstandard Neutrino Interaction Parameters with IceCube-DeepCore by : Elisa Lohfink
Download or read book Testing Nonstandard Neutrino Interaction Parameters with IceCube-DeepCore written by Elisa Lohfink and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Currently, the clearest evidence for physics beyond the Standard Model is provided by observations that indicate non-zero neutrino masses. Numerous theories on how these masses are generated give rise to additional non-standard interactions (NSI) of neutrinos with quarks and charged leptons. Atmospheric neutrinos provide a sensitive probe for the neutrino flavor transitions resulting from the type of NSI investigated in this work. These comprise neutral current forward scattering of neutrinos of all flavors on first generation charged fermions in Earth matter. In order to maximize model independence, the NSI are parametrized using five effective coupling strengths. In the IceCube-DeepCore detector, atmospheric neutrinos are detected indirectly via Cherenkov photons produced within the Antarctic glacier. The range of angles under which neutrinos enter the detector translates into propagation baselines of O(1 - 10000 )km. The data sample used in the presented analysis includes 9.3 years of DeepCore data, covering a neutrino energy range of 5 to 100 GeV. Accuracy and performance of event property reconstruction from observed photons are a crucial factor for the analysis outcome. Therefore, this work includes a thorough study of the potential and shortcomings of likelihood based DeepCore event reconstruction algorithms. The presented analysis relies on comparing binned observed event counts to simulation that is generated at different hypotheses. These include the individually considered NSI parameters as well as 17 nuisance parameters. In order to find the hypothesis that best describes the observation, the optimum of a test statistic is determined using a customized minimization strategy. The final analysis setup yields sensitivities to four effective NSI couplings that are competitive compared with existing results.
Book Synopsis First Observation of Coherent Elastic Neutrino-Nucleus Scattering by : Bjorn Scholz
Download or read book First Observation of Coherent Elastic Neutrino-Nucleus Scattering written by Bjorn Scholz and published by Springer. This book was released on 2018-10-26 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes the experimental work that finally led to a successful measurement of coherent elastic neutrino-nucleus scattering—a process proposed forty-three years ago. The experiment was performed at the Spallation Neutron Source facility, sited at Oak Ridge National Laboratory, in Tennessee. Of all known particles, neutrinos distinguish themselves for being the hardest to detect, typically requiring large multi-ton devices for the job. The process measured here involves the difficult detection of very weak signals arising from nuclear recoils (tiny neutrino-induced “kicks” to atomic nuclei), but leads to a much larger probability of neutrino interaction when compared to all other known mechanisms. As a result of this, “neutrino technologies” using miniaturized detectors (the author's was handheld and weighed only 14 kg) become a possibility. A large community of researchers plans to continue studying this process, facilitating an exploration of fundamental neutrino properties that is presently beyond the sensitivity of other methods.
