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LBNE Long-Baseline Neutrino Experiment Document 8087-v7

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The Long-Baseline Neutrino Experiment: Exploring Fundamental Symmetries of the Universe

Document #:
LBNE-doc-8087-v7
Document type:
reference document
Submitted by:
Mary Bishai
Updated by:
Mary Bishai
Document Created:
31 Oct 2013, 11:16
Contents Revised:
07 Mar 2014, 17:20
Metadata Revised:
07 Mar 2014, 17:20
Viewable by:
  • Public document
Modifiable by:
  • lbne
    (Can't modify now)

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Other Versions:
LBNE-doc-8087-v10
15 Apr 2014, 13:16
LBNE-doc-8087-v9
01 Apr 2014, 19:54
LBNE-doc-8087-v8
26 Mar 2014, 10:00
LBNE-doc-8087-v6
26 Feb 2014, 00:43
LBNE-doc-8087-v5
11 Feb 2014, 10:51
LBNE-doc-8087-v4
21 Jan 2014, 12:20
LBNE-doc-8087-v3
10 Jan 2014, 21:40
Abstract:
The Long-Baseline Neutrino Experiment (LBNE) is being developed to
provide a unique and world-leading program for the exploration of key
questions at the forefront of particle physics and astrophysics. This
document describes the principal scientific opportunities LBNE is
designed to pursue and the exceptional combination of technical
capabilities and geographical layout that will allow it to make
groundbreaking discoveries.

In a single experiment, LBNE will enable a broad exploration of the three-flavor model of neutrino physics with unprecedented detail. Chief among its potential discoveries is that of matter-antimatter symmetry violation in neutrino flavor mixing --- a step toward unraveling the mystery of matter generation in the early Universe. Independently, determination of the neutrino mass ordering and precise measurement of neutrino mixing parameters by LBNE may reveal new fundamental symmetries.

Predicted rates for nucleon decay based on Grand Unified Theories cover a range directly accessible with the next generation of large underground detectors. LBNE's sensitivity to key decay channels, in particular, will offer unique opportunities for observation of this phenomenon.

Neutrinos emitted in the first few seconds of a core-collapse supernova carry with them the potential for great insight into the evolution of the Universe. LBNE's capability to collect and analyze this high-statistics neutrino signal from a supernova within our galaxy would provide a rare opportunity to peer inside a newly-formed neutron star, and potentially witness the birth of a black hole.

To achieve its goals, LBNE is conceived around three central
components: (1) a new, intense wide-band neutrino source at Fermi
National Accelerator Laboratory, (2) a fine-grained near neutrino
detector installed just downstream of the source, and (3) a massive
liquid argon time-projection chamber deployed as a far detector deep
underground at the Sanford Underground Research Facility, located
$\sim$1,300~km from the neutrino source. This distance (baseline)
delivers optimal sensitivity to neutrino charge-parity symmetry
violation and mass hierarchy effects.

The LBNE concept has matured over more than a decade into a
well-developed design made even more relevant by recent mixing
parameter measurements. Its realization through international
partnerships will produce exciting discoveries about the most abundant
known matter particle and the fundamental forces that shaped our Universe
from its first moments of creation.

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