Mu-Chun Chen
9/15/09, 11:00โฏAM
Neutrino Physics
I will review recent developments in theoretical models for neutrino masses and mixing. Emphases are given to models based on finite group family symmetries in which Tri-bimaximal neutrino mixing pattern is generated. In particular, I will describe one recent model based on grand unification, in which both the Tri-bimaximal neutrino mixing and realistic CKM matrix are generated. The prediction...
Martin HIRSCH
9/15/09, 11:30โฏAM
Neutrino Physics
Majorana neutrino masses can be generated in a variety of ways. They could be due to some variant of the seesaw mechanism or be generated radiatively. Also within supersymmetric models neutrino masses can be non-zero if R-parity is broken. This talk discusses different signals of various neutrino mass models one can expect for the LHC experiments.
PROBIR ROY
9/15/09, 12:00โฏPM
Neutrino Physics
Within the type-I seesaw framework with three heavy right chiral neutrinos and in the basis where the latter and the charged leptons are mass diagonal, we investigate the effects of mu-tau symmetry as well as trbimaximal mixing on the maximally allowed four zero neutrino Yukawa textures which had already led to a predicitve and highly constrained theoretical scheme. A drastic reduction of the...
Itaru Shimizu
9/15/09, 3:30โฏPM
Neutrino Physics
The KamLAND experiment searched for the oscillation of anti-neutrinos emitted from distant nuclear reactors. We observed the anti-neutrino spectral distortion, which was a piece of evidence of neutrino oscillations. Due to their clear spectral distortion, the neutrino mass difference was determined with 2.8% precision. In the near future, we will have a sensitivity also to the low energy solar...
Alexandre Sousa
9/15/09, 3:50โฏPM
Neutrino Physics
The Main Injector Neutrino Oscillation Search (MINOS) long baseline experiment measures a muon neutrino beam in two locations: a Near detector at Fermilab, close to beam production, and a Far detector, 735 km downstream, in Northern Minnesota. Comparisons of the observed energy spectrum at the Far detector with the expectation derived from the Near detector measurement allow MINOS to study...
Mayly Sanchez
9/15/09, 4:10โฏPM
Neutrino Physics
MINOS is a long baseline neutrino oscillation experiment designed to make precision measurements of the neutrino mixing parameters associated with the atmospheric neutrino mass splitting. Using a neutrino beam from the Main Injector (NuMI) facility at Fermilab, it compares the neutrino energy spectrum for neutrino interactions observed in two large detectors located at Fermilab and in the...
Georgia Karagiorgi
9/15/09, 4:30โฏPM
Neutrino Physics
MiniBooNE is a short-baseline experiment located at Fermilab, sensitive to muon (anti)neutrino to electron (anti)neutrino appearance and muon (anti)neutrino disappearance oscillations at high $\Delta m^2~$ 1 eV$^2$. These oscillation searches have been motivated by the 3.8$\sigma$ excess of electron antineutrino events in a muon antineutrino beam observed by the LSND experiment in 1995. In...
Yasuhiro Nakajima
9/15/09, 5:30โฏPM
Neutrino Physics
Neutrino oscillation is a probe for new physics not included in the Standard Model.
We search for muon neutrino disappearance at \Delta m^2 ~ 1 eV^2
using the Fermilab Booster Neutrino beamline and two experiments,
SciBooNE and MiniBooNE.
The neutrino fluxes are measured at SciBooNE and MiniBooNE detectors, located
at 100 m and 540 m downstream from the neutrino production target,...
Akitaka Ariga
9/15/09, 5:50โฏPM
Neutrino Physics
The OPERA experiment is a long baseline neutrino experiment aiming at the first observation of the appearance of a new flavor signal predicted by the neutrino flavor-mixing oscillations hypothesis. The OPERA is designed to detect a tau neutrino appearance in the pure muon neutrino beam from CERN to Gran Sasso (CNGS beam). The target has a modular structure made of units based on Emulsion Cloud...
Kang Soon Park
9/16/09, 9:00โฏAM
Neutrino Physics
RENO(Reactor Experiment for Neutrino Oscillation), is under construction to measure the smallest neutrino mixing angle theta_13 using antineutrinos emitted from the Yonggwang power plant in Korea with world-second largest thermal power output of 16.4 GW.
A high precision measurement of reactor neutrino oscillation can be achieved by two identical detectors.
Each detector consists 16-ton...
Steve kettell
9/16/09, 9:20โฏAM
Neutrino Physics
The Daya Bay experiment aims to measure the last unobserved neutrino
mixing angle theta_13 with a sensitivity of sin^2 (2 theta_13) <
0.01 at 90% C.L. The experiment will measure the flux and energy
spectrum of reactor antineutrinos through the inverse beta-decay
reaction on protons in eight detectors in three underground sites at
different distances from the reactor cores. An overview...
Marcos Dracos
9/16/09, 9:40โฏAM
Neutrino Physics
The Double Chooz neutrino oscillation experiment will perform a highly sensitive measurement of the neutrino mixing angle ฮธ13. The Double Chooz project will utilize two detectors, a near one providing the unoscillated neutrino flux coming from the two reactor cores of the Chooz nuclear plant (France), and a far detector measuring the neutrino flux after oscillation. The signal comparison...
Hidekazu Kakuno
9/16/09, 10:00โฏAM
Neutrino Physics
T2K (Tokai-to-Kamioka) is a second generation long baseline neutrino experiment
utilizing a newly built neutrino source with a MW class high energy proton accelerator
complex (J-PARC neutrino facility), a near neutrino detector (ND280) to characterize
the neutrino beam 280 meters from the source, and Super-Kamiokande as the far detector
at 295 km.
The primary motivation for T2K is...
Mayly Sanchez
(Argonne National Laboratory)
9/16/09, 11:00โฏAM
Neutrino Physics
NOvA is a next generation long baseline neutrino experiment. It has been designed to study electron neutrino appearance in a muon neutrino beam using a totally active, segmented, liquid scintillator detector located off the Fermilab NuMI beam axis. Construction of a prototype Near detector will commence this year and will be placed in the existing NuMI beam during 2010. The Far Detector will...
Takuya Hasegawa
9/16/09, 11:20โฏAM
Neutrino Physics
As the first phase experiment utilizes J-PARC(Japan Proton Accelerator Research Complex) neutrino facility, T2K(Tokai to Kamioka Long Baseline Neutrino Experiment) starts operation. T2K is supposed to give critical information, which guides the future direction of the neutrino physics. I will discuss possible future discovery experiment next to T2K. Talk will focus especially on describing...
Andre Rubbia
9/16/09, 11:40โฏAM
Neutrino Physics
The LAGUNA design study is presently assessing the feasibility of a new large underground infrastructure in Europe for next generation neutrino and proton decay search experiment I will describe the status of LAGUNA and discuss possible options for future long baseline experiments coupled to a potential future program at CERN.
Terrence Hart
9/16/09, 3:30โฏPM
Neutrino Physics
A Neutrino Factory producing intense neutrino beams from muon decays is an intriguing possibility for the next generation of neutrino experiments. Determination of the neutrino mass hierarchy, precision measurements of the neutrino mixing parameters, and observation of CP violation in the neutrino sector are among the many studies possible with a Neutrino Factory. A Neutrino Factory can also...
Alain Blondel
9/16/09, 3:50โฏPM
Neutrino Physics
"R&D and Design Studies towards novel neutrino beams are advancing well
in Europe. International R&D experiments (HARP, MERIT, MICE, EMMA) have
been and are succesfully being performed. Design studies of high power
upgrades of existing (ISIS) or planned (SPL) proton machines, of
detector concepts and sites (Laguna) and of high intensity beams
(EUROnu) are in progress.
EUROnu aims, in...
Vittorio Palladino
9/16/09, 4:10โฏPM
Neutrino Physics
Muon ionization cooling provides the only practical solution to prepare
high brilliance beams necessary for a neutrino factory or muon
colliders. The muon ionization cooling experiment (MICE)* is under
development at the Rutherford Appleton Laboratory (UK). It comprises a
dedicated beam line to generate a range of input emittance and
momentum,
with time-of-flight and Cherenkov detectors...
Shoichi Uchinami
9/16/09, 4:30โฏPM
Neutrino Physics
In neutrino oscillation with non-standard interactions (NSI) the system is enriched with
CP violation caused by phases due to NSI in addition to the standard lepton
Kobayashi-Maskawa phase $ยฅdelta$. In this paper we show that it is possible to
disentangle the two CP violating effects by measurement of muon neutrino appearance
by a near-far two detector setting in neutrino factory...
Olga Lalakulich
9/16/09, 5:30โฏPM
Neutrino Physics
Modern long-baseline neutrino experiments, aiming at precise measurements of the neutrino oscillation parameters require a thorough understanding of neutrino cross sections in medium-energy region. An overview of neutrino-nucleon and neutrino-nucleus cross sections in a few GeV region is presented. Cross section on a nucleon target is expressed as a sum of quasi-elastic, resonance and DIS...
Yoshinari Hayato
9/16/09, 6:00โฏPM
Neutrino Physics
Recent experimental studies of neutrino oscillation require more precise knowledge of the neutrino-nucleus scatterings. Therefore, several experiments to study neutrino nucleus-scattering experiments have been performed. In this presentation, I will report the recent results of neutrino scatterings from SciBooNE and MiniBooNE.
3.
Hadro-production measurements for the T2K experiment with the NA61/SHINE detector at the CERN SPS
Claudia Christina Strabel
9/16/09, 6:20โฏPM
Neutrino Physics
In this talk the NA61/SHINE detector will be presented, which is a large acceptance hadron spectrometer at the CERN SPS. It allows for a precise study of the particle production from the interactions of a 31 GeV/c proton beam on a Carbon target in order to predict the neutrino flux of the T2K experiment at J-PARC, Japan. Requirements for the T2K experiment will be discussed together with the...
Angelo Nucciotti
(Dip. Fisica, Univ. di Milano-Bicocca and INFN Sez. di Milano-Bicocca)
9/17/09, 9:00โฏAM
Neutrino Physics
Neutrinoless double beta decay is a powerful tool to investigate the fundamental nature of neutrinos and to determine the absolute neutrino mass scale. To date, CUORE is the only fully approved next generation 1-ton size experiment with the goal of exploring the inverted hierarchy region for the neutrino masses.
CUORE is an array of 988 TeO2 cryogenic detectors containing 200 kg of Te-130 -...
Luciano Pandola
9/17/09, 9:25โฏAM
Neutrino Physics
Neutrinoless double-beta-decay could be the key to understanding the
nature of the neutrino: if observed it would prove its Majorana-nature and
the half-life of the decay would be a direct measure of the yet unknown
absolute scale of the neutrino mass.
The GErmanium Detector Array (GERDA) experiment at the INFN, Gran Sasso
Laboratory, Italy, is designed to investigate the...
Karol Lang
9/17/09, 9:50โฏAM
Neutrino Physics
The NEMO-3 experiment, located in the Modane Underground Laboratory,
is searching for neutrinoless double beta decay since 2003. We will
present the latest results for seven isotopes used on NEMO-3: 48Ca,
96Zr, 82Se, 100Mo, 116Cd, 130Te and 150Nd. We observe
no evidence for neutrinoless double beta decay and based on 100Mo
data set an upper limit on the effective Majorana neutrino...
Aldo Ianni
9/17/09, 12:15โฏPM
Kamales Kar
9/18/09, 9:00โฏAM
Neutrino Physics
The effect of collective flavor oscillations of neutrinos driven by neutrino-neutrino interaction at the very high density region of core collapse supernovae controls
the emitted flux of neutrinos of different flavors. In the process one or more
swaps of the flavors for both neutrinos and antineutrinos take place depending on the initial neutrino flux and distributions, particularly for...
Yasuo Takeuchi
9/18/09, 9:50โฏAM
Neutrino Physics
Elena Guardincerri
9/18/09, 11:00โฏAM
Neutrino Physics
Borexino is a liquid scintillator, solar neutrino detector running underground at the Laboratori Nazionali del Gran Sasso, Italy.
Thanks to the extreme radio-purity achieved throughout its whole set-up Borexino is capable of detecting solar neutrinos below 2 MeV.
Among the main results obtained so far are the first measurement of the 7Be solar neutrinos flux, whose value is in agreement...
Emilio Migneco
9/18/09, 11:20โฏAM
Annarita Margiotta
9/18/09, 11:50โฏAM
Neutrino Physics
ANTARES is an underwater neutrino telescope, located about 2500 m under the sea, 40 km off the coast of Toulon/France.
Consisting of about 900 optical modules it is currently the largest neutrino detector in the northern hemisphere and has been taking data in its final configuration since May 2008. In this talk the physics potential and the detection technique are described and first results...
