1,041 research outputs found
The Standard Model of Particle Physics
A concise introduction to the Standard Model of fundamental particle
interactions is presented.Comment: To appear in the ''Encyclopedia of Mathematical Physics", Elsevie
Status of Neutrino Masses and Mixing in 2010
We present a short summary of our present knowledge and understanding of
neutrino masses and mixing.Comment: 15 pages, 2 figures. Talk given at the Quarks, Strings and the Cosmos
- Hector Rubinstein Memorial Symposium, August 09-11, 2010, AlbaNova,
Stockholm, Swede
Status of Neutrino Masses and Mixing in 2009
We present a very concise summary of the status of our knowledge and
understanding of neutrino masses and mixing.Comment: 12 pages, 1 figure. Talk given at the Rencontres de Physique de la
Vallee d'Aoste, La Thuile, Aosta Valley (Italy). March 1-7, 200
Lectures on Models of Neutrino Masses and Mixings
We present a concise review of models for neutrino masses and mixings with
particular emphasis on recent developments and current problems. We discuss in
detail attempts at reproducing approximate tri-bimaximal mixing starting from
discrete symmetry groups, notably A4. We discuss the problems encountered when
trying to extend the symmetry to the quark sector and to construct Grand
Unified versions.Comment: Two lectures given at the Summer Institute 2007, 3-10 August 2007,
Fuji-Yoshida, Japan 27 pages, 3 figure
New Physics and the LHC
In these lectures I start by briefly reviewing the status of the electroweak
theory, in the Standard Model and beyond. I then discuss the motivation and the
possible avenues for new physics, on the brink of the LHC start.Comment: 35 pages, 8 figures. Lectures given at the Lake Louise Winter
Institute, Lake Louise, Alberta, Canada, 18-23 February 200
Particle Physics at the LHC Start
I present a concise review of where we stand in particle physics today.
First, I will discuss the status of the Standard Model, its open problems and
the expected answers from the LHC. Then I will briefly review the avenues for
New Physics that can be revealed by the LHC.Comment: 25 pages, 7 figures. Talk given at the Conference "The Legacy of
Edoardo Amaldi in Science and Society", Rome, Italy, October 23-25, 200
An Update on Models of Neutrino Masses and Mixings
At the School I gave three lectures on neutrino masses and mixings. Much of
the material covered in my first two lectures is written down in a review on
the subject that I published not long ago with F. Feruglio \cite{rev}. Here, I
make a relatively short summary (with updates) of the content of my first two
lectures, referring to our review for a more detailed presentation, and then I
expand on the content of the third lecture which was dedicated to recent work
on A4 models of tri-bimaximal neutrino mixing which were not covered in the
review.Comment: Lectures given at IPM-LHP06, Tehran, Iran; PSN: IPM-LHP06-sch. 14
pages, 1 figure Typos corrected, one reference adde
Particle Physics: a Progress Report
We present a concise review of where we stand in particle physics today.
First we discuss QCD, then the electroweak sector and finally the motivations
and the avenues for new physics beyond the Standard Model.Comment: 20 pages, to appear in the Proceedings of IFAE 2006, Pavia, Ital
Theoretical Models of Neutrino Mixing: Recent Developments
The data on neutrino mixing are at present compatible with Tri-Bimaximal (TB)
mixing. If one takes this indication seriously then the models that lead to TB
mixing in first approximation are particularly interesting and A4 models are
prominent in this list. However, the agreement of TB mixing with the data could
still be an accident. We discuss a recent model based on S4 where Bimaximal
mixing is instead valid at leading order and the large corrections needed to
reproduce the data arise from the diagonalization of charged leptons. The value
of could distinguish between the two alternatives.Comment: 21 pages. Talk at the 13th International Workshop on Neutrino
Telescopes, Venice, March 10-13, 200
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