64 research outputs found
Systematic Model Building Based on Quark-Lepton Complementarity Assumptions
In this talk, we present a procedure to systematically generate a large
number of valid mass matrix textures from very generic assumptions. Compared to
plain anarchy arguments, we postulate some structure for the theory, such as a
possible connection between quarks and leptons, and a mechanism to generate
flavor structure. We illustrate how this parameter space can be used to test
the exclusion power of future experiments, and we point out that one can
systematically generate embeddings in Z_N product flavor symmetry groups.Comment: 3 pages, 1 figure. Talk given at the NuFact 07 conference, Aug 6-11,
2007, Okayama, Japa
Optimization of a Neutrino Factory: Discovery Machine versus Precision Instrument
We discuss the optimization of a neutrino factory experiment for the purpose
of sin^2(2theta_13), mass hierarchy, and CP violation discoveries. This
includes a review of possible optimization strategies, as well as an
application of these to different sin^2(2theta_13) regions.Comment: 5 pages, 4 figures. Talk given at the NuFact 07 conference, Aug 6-11,
2007, Okayama, Japa
Neutrino oscillations: present status and outlook
I summarize the status of three-flavour neutrino oscillations with date of
Oct. 2007, and provide an outlook for the developments to be expected in the
near future. Furthermore, I discuss the status of sterile neutrino oscillation
interpretations of the LSND anomaly in the light of recent MiniBooNE results,
and comment on implications for the future neutrino oscillation program.Comment: 6 pages, 5 figures, plenary talk at NuFact07, Okayama, Japa
Charged Lepton Flavour Violation in Littlest Higgs model with T-parity
The Little Higgs model with T-parity (LHT) belongs to the non-minimal flavour
violating model. This model has new sources of flavour and CP violation both in
quark and leptonic sectors. These new sources of flavour violation originates
by the interaction of Standard Model (SM) fermions with heavy gauge bosons and
heavy (or mirror) fermions. In this work we will present the impact of the new
flavour structure of T-parity models on flavour violations in leptonic sector.Comment: 3 pages, no figures, Talk given at NuFact07, Aug 6-11, 2007, Okayama,
Japan, references adde
More on Non-standard Interaction at MINOS
We discuss about effects of the non-standard interaction of neutrinos with
matter on the nu_e appearance search in the MINOS experiment. We consider the
effects of the complex phase of the interaction and of the uncertainty on
theta_23 also. We show that the oscillation probability can be so large that
can not be explained by the ordinary oscillation. We show also how much
constraints on the non-standard effects can be improved if the experiment does
not observe nu_e appearance signal.Comment: Talk given at 9th International Workshop on Neutrino Factories,
Superbeams and Betabeams (NuFact07), Okayama, Japan, 6-11 Aug 200
Physics and Performance Evaluation Group
We summarize the objectives and results of the ``international scoping study
of a future neutrino factory and superbeam facility'' (ISS) physics working
group. Furthermore, we discuss how the ISS study should develop into a neutrino
factory design study (IDS-NF) from the point of view of physics and performance
evaluation.Comment: 3 pages, 1 figure. Plenary talk given at the NuFact 07 conferenc
MANX: A 6D Ionization-Cooling Experiment
Six-dimensional ionization cooling of muons is essential for muon colliders
and possibly beneficial for neutrino factories. An experiment to demonstrate
six-dimensional ionization cooling using practical apparatus is presented. It
exploits recent innovative ideas that may lead to six-dimensional muon-cooling
channels with emittance reduction approaching that needed for high-luminosity
muon colliders.Comment: 3 pages, 4 figures, to appear in Proceedings of the 9th International
Workshop on Neutrino Factories, Superbeams, and Betabeams (NuFact07), August
6-11, 2007, Okayama University, Japa
Neutrino Scattering on Glass: NuSOnG
These proceedings describe the physics goals and initial design for a new
experiment: NuSOnG -- Neutrino Scattering On Glass. The design will yield about
two orders of magnitude higher statistics than previous high energy neutrino
experiments, observed in a detector optimized for low hadronic energy and
electromagnetic events. As a result, the purely weak processes and (inverse muon decay)
can be measured with high accuracy for the first time. This allows important
precision electroweak tests and well as direct searches for new physics. The
high statistics also will yield the world's largest sample of Deep Inelastic
(DIS) events for precision parton distribution studies.Comment: Proceedings of NuFact0
Nuclear effects in Neutrino Nuclear Cross-sections
Nuclear effects in the quasielastic and inelastic scattering of
neutrinos(antineutrinos) from nuclear targets have been studied. The
calculations are done in the local density approximation which take into
account the effect of nucleon motion as well as renormalisation of weak
transition strengths in the nuclear medium. The inelastic reaction leading to
production of pions is calculated in a dominance model taking into
account the renormalization of properties in the nuclear medium.Comment: 4 pages,3 figures, Ninth International Workshop on Neutrino
Factories, Superbeams and Betabeams (NuFact07), August 6-11, 2007, Okayama
University, Okayama, Japa
Chiral Symmetry and Neutrino Pion Production off the Nucleon
The neutrino pion production off the nucleon is traditionally described in
the literature by means of the weak excitation of the Delta(1232) resonance and
its subsequent decay into N pi. Here, we present results from a model that
includes also some background terms required by chiral symmetry. We show that
the contribution of these terms is sizeable and leads to significant effects in
total and partially integrated pion production cross sections at intermediate
energies of interest for neutrino oscillation experiments. Finally, we discuss
parity-violating contributions to the pion angular differential cross section
induced by the interference of these non-resonant terms with the Delta piece.Comment: To appear in the proceedings of 9th International Workshop On
Neutrino Factories, Superbeams and Betabeams (NuFact07) August 6-11, 2007,
Okayama University, Japa
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