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1
Tau Neutrino Appearance Via
Neutrino Oscillations in ...
This is consistent with the expected number of tau neutrino events, 121 +/- 39 (sys.) for Deltam2 = 2.4 x 10-3eV2, assuming the full mixing in numu ↔ nutau oscillations.
2
Hadronic Spectrum of
Tau Lepton to Antipion-neutral Pion-
tau ...
We report on a study of the invariant mass spectrum of the hadronic system in tau- → pi-pi0nu tau decays.
2.3.4 The tau neutrino mass Tau leptons are produced in pairs at e+e~ storage
rings. Decay modes which have been used to constrain the mass of the tau
neutrino are of the type r- — . nh{+--'0)vT, where nh stands for n hadrons, being
either ...
But this small sample was sufficient to make a big impact on the upper limit for the
tau-neutrino's mass. For each of these 1 1 events, the researchers measured the
momentum of the five charged pions in the tau's decay, and deduced not only ...
5
A Search for Muon
Neutrino to Electron
Neutrino Oscillations ...
This discovery expanded the number of lepton families to three, and hinted at the
existence of a respective tau neutrino ms. The tau-neutrino was not observed
until 2001, due to the experimental challenges associated with its detection.
Juan Pedro Ochoa-Ricoux, 2011
The best way to measure the mass of the tau-neutrino is to study the decays of
the tau lepton into five charged particles (pions) and a neutrino. There are many
ways in which the pions and the tau-neutrino can share the energy released
when ...
7
The Britannica Guide to Particle Physics
The tau can decay into a muon, plus a tau-neutrino and a muon-antineutrino. It
can also decay directly into an electron, plus a tau-neutrino and an electron-
antineutrino. Because the tau is heavy, it can also decay into particles containing
...
8
The Particle Odyssey : A Journey to the Heart of the Matter: ...
Today, particle physicists recognize the existence of three types of neutrino: the
electron-neutrino, the muon-neutrino, and the tau-neutrino. Discovered in 1975 at
SLAC, the tau (see pp. 162–163) is a heavier version of the muon, just as the ...
Frank Close, Michael Marten, Christine Sutton, 2002
9
Tau Lepton Physics: Orsay, France, September 18-22, 1990
Together with the lifetime and leptonic branching ratio measurements [3] [4],
these results show that the tau-neutrino is distinct from ve and v^. Does the tau-
neutrino exist as a particle? Surprisingly, this question cannot be answered by
yes or ...
Michel Davier, Bernard Jean-Marie, 1991
10
Current Aspects of
Neutrino Physics
3.4.2 VT Mass Measurements Limits on the mass of the tau neutrino have been
derived by looking at rare multi-particle semileptonic decays of the tau, with only
one neutrino in the final state and where the effective mass of the detected ...
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Neutrino Oscillation Confirmed: Exotic Particles Seen Switching …
Physicists have found the first direct proof of oscillation between two of the three known types of neutrinos by discovering a tau neutrino in a muon neutrino beam ... «International Business Times, 六月 15»
INFN: Discovery of the tau neutrino appearance
The neutrino started its flight at CERN as muon neutrino and, after traveling 730 km through the Earth, it arrived at Gran Sasso Laboratories showing up as a tau ... «Interactions.org, 六月 15»
Synopsis: IceCube Neutrinos Pass Flavor Test
For example, pion decay results in mostly muon neutrinos and no tau neutrinos, but other scenarios exist with different initial flavor distributions. Nevertheless ... «Physics, 四月 15»
Explainer: What are fundamental particles?
The lightest of these pairs is the electron and electron-neutrino. ... The other two neutrino pairs (called muon and muon neutrino, tau and tau neutrino) appear to ... «Phys.Org, 三月 15»
Fermilab's 500-mile neutrino experiment up and running
The three types, called flavors, are the muon, electron and tau neutrino. Over longer distances, neutrinos can flip between these flavors. NOvA is specifically ... «Phys.Org, 十月 14»
'Revolutionary' Physics: Do Sterile Neutrinos Lurk in the Universe?
(During collisions, electron neutrinos can also turn into electrons, muon neutrinos can transform into muons, and tau neutrinos can turn into tau leptons, particles ... «LiveScience.com, 七月 14»
ScienceShot: Rare Neutrino Morphing Spotted Again
For the fourth time, physicists have spotted a neutrino morphing from a type called a muon neutrino to a type called a tau neutrino. The observation comes from ... «Science News, 三月 14»
The Fourth Transformation Of Neutrinos
The OPERA international experiment at the INFN Gran Sasso Laboratory (Italy) has detected a fourth tau neutrino. The neutrino indeed started its flight at CERN ... «Interactions.org, 三月 14»
Do Neutrinos Change Flavor at Night?
As muon and tau neutrinos travel through our planet, they can interact with the electrons contained within the dense terrestrial matter. This can cause the ... «Discovery News, 三月 14»
Tau Neutrino, Ultra-Rare Particle, Observed For Third Time In CERN …
For only the third time, scientists have detected elementary particles called neutrinos in the act of changing from one type, called muon, to another, called tau, ... «Huffington Post, 三月 13»
