NEW -- May 2014 -- NEW
* Fourth "tau neutrino" was Detected at the OPERA experiment, INFN Gran Sasso Lab, Italy, March 25, 2014: Muon Neutrino started at CERN, Geneva, after traveling 730 km through the Earth arrived at OPERA detector in Gran Sasso lab, transformed into "tau" neutrino, Their first "tau" neutrino was observed in 2010, second in 2012 and third in 2013, respectively.
End of MINOS --- June 2016
|Dr. Zohreh Parsa Neutrino Physics; CPV, and LBNE she started in 1998 has been high priority mega science project for over a decade.||Dr.William Marciano Neutrino Physics, etc.; Awarded J. J. Sakurai Prize for Theoretical Particle Physics (2002)||Dr. Nicholas Samios Early measurements of neutrino electron elastic scattering etc.; Awarded Gian Carlo Wick Gold Medal (2009)||Dr. Raymond Davis Awarded 2002 Physics Nobel Prize for detecting Solar Neutrinos!||
Dr. Maurice Goldhaber
Experiment, revealed ν's to be left-handed, property known as "spin" Awarded National Medal of Science.
|Dr. Melvin Schwartz Awarded Nobel Prize for Discovery of the Muon-Neutrino (1988).|
Neutrino Physics & Experiment
1. Past History
Neutrino physics has had an interesting history. In 1930 Dr.
Pauli postulated the existence of the (electron) neutrino, in
1956 this was confirmed by Drs.
Reines and Cowan using a nuclear
reactor source of antineutrinos. In 1962, a second
distinct (muon) neutrino was shown to exist in a BNL experiment. For
that discovery Nobel Prize was awarded to Drs.
Schwartz and Steinberger. In 1995, the third, (tau) neutrino was
detected at FNAL. In parallel, Dr. Ray Davis' studies of solar
neutrinos confirmed understanding of stellar dynamics modulo
a 2/3 flux deficit that later was recognized as a result of
ν oscillations among the three flavors of neutrinos.
properties of those oscillations were further unveiled with
followup solar, atmospheric, reactor and accelerator neutrino
studies . The discovery of oscillations, detection
In 1998 Dr. Zohreh Parsa started the Neutrino /CP
Violation studies, that envisioned sending a very intense neutrino beam
from Brookhaven National Laboratory on Long Island, New York
through the earth to a (Long Baseline L, 1200 km < L < 4000 km) far away
underground multipurpose large detector capable of: making precision measurements
of all the (ν) neutrino oscillation parameters providing a
major advance in ν science; search for
proton decay; and observation of natural sources of neutrinos such as
3. Very Long Baseline Neutrino Experiment
Using a wide band muon neutrino beam from BNL to
a 2540 km underground ( 0.5 megaton water Cherenkov)
detector at Homestake gold Mine in South Dakota was one of our first
study for "very Long Baseline (underground detector)
Neutrino Experiment" (LBNE).
Potentials of intense neutrino beams from BNL and FNAL to (Long Baseline) underground Detectors at Homestake, SD; Henderson, CO; Cascades, WA; etc.; were also investigated and studied as competition for Deep Underground Science and Engineering Laboratory Site increased. Later Homestake, S.D. was selected.
Interest for LBNE in U.S. with neutrino source at BNL to a far Detector L=2540 km away (underground) at Homestake, S.D. grew. But after over a decade, possibility of LBNE with source at BNL became less likely, due to years of funding delays, etc. "LBNE Collaboration" with U.S. and International members continued to grow. Over a dacade later, LBNE was renamed as DUNE; LBNE Collaboration became DUNE Collaboration. For more info on DUNE, see below and Tab 15.
4. LBNE (Reconfiguration) with Neutrino Source at FNALUsing a high intensity accelerator neutrino beam from Fermilab (FNAL) to a (L=1287.475 km=800 miles baseline) liquid argon TPC detector at SURF (Homestake) is the LBNE reconfiguration. The goals for this program are determination of leptonic CP violation, the neutrino mass hierarchy, and underground physics.
with source at FNAL to 800 miles possible Detecotr site(s).
On Dec 10, 2012, DOE granted Critical Decision 1 (CD-1) approval to the first phase of LBNE, which includes construction of a neutrino beamline at Fermilab (where the neutrino beam would travel through 800 miles of earth to a (near-surface) far detector at Sanford Lab in Lead, S.D. For Proposed LBNE Factsheet |click| For Brookhaven National Laboratory (BNL) DOE's approval of CD-1 was an important milestone after over decade of work.
For Brookhaven National Laboratory (BNL) DOE's approval of CD-1 was an important milestone after over decade of work at BNL.
5. DUNE/ LBNFThe Deep Underground Neutrino Experiment (DUNE) expected to use the most intense neutrino beam and a larg detector to study neutrino (v) the most abundant matter particles in the universe. scientists are working to discover the missing pieces that could explain e.g., how the known particles and forces created in our universe; discover if neutrino is the reason our matter-filled universe exists, to check formation of black hole in a nearby galaxy; proton decay, etc. To View a DUNE/LBNF Show |click Here|. when page opens (to a black screen), click on it again to start the show.
The full-size DUNE detectors, expected to be built about a mile underground at the Sanford Research Facility (in homestake, South Dakota). For the 35-Ton Prototype Particle Detector for DUNE (YouTube): |Click Here|
May 22, 2014 - P5 Report recommended new international LBNF (Long Baseline Neutrino Facility), with FNAL as the host Lab, (see Left Tab for P5 Report, etc).
"Left Tabs" provide more on LBNE with beam from FNAL to a Detecor at SURF (DUNE/LBNF). Also News; Reports, Reactor and Solar neutrino experiments, etc.
Fig. 11: Shows Some of DUNE (previously LBNE) Collaboration members from Brookhaven National Lab; including Drs. Z. Parsa, W. Marciano, M. Diwan, S. Kettle, N. Samios (1 to 5). **Above photo had low resolution when received. If you number and name all members shown that version of this photo will be considered for posting.
Fig. 12: March 4, 2015 Neutrino Workshop Participants at Brookhaven. For Larger version of this photo. |Click Here|
For Larger version of this photo. |Click Here|
with US and International members, January 2017.
For a larger version Click | Here| and for Talks |Here| .
Fig. 17: July 21, 2017 LBNF Groundbreaking |Here| --one mile beneath Lead, South Dakota, construction began as part of LBNF (Long Baseline Neutrino Facility). Excavating Crews will excavate four massive caverns that will house DUNE . View YouTube |LBNF Groundbreaking|
Brookhaven Neutrino (alias Neutrinos) Page(s) were moved to: https://neutrino.bnl.gov and https://neutrinos.bnl.gov
Neutrino (& Neutrinos) updated: 1999-2018 Dr. Zohreh Parsa, Physics Dept. 510A, Brookhaven National Lab, Upton NY 11973.
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