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A new, very massive modular Liquid Argon Imaging Chamber to detect low
energy off-axis neutrinos from the CNGS beam. (Project MODULAr) | | B. Baibussinov
; M. Baldo Ceolin
; G. Battistoni
; P. Benetti
; A. Borio
; E. Calligarich
; M. Cambiaghi
; F. Cavanna
; S. Centro
; A. G. Cocco
; R. Dolfini
; A. Gigli Berzolari
; C. Farnese
; A. Fava
; A. Ferrari
; G. Fiorillo
; D. Gibin
; A. Guglielmi
; G. Mannocchi
; F. Mauri
; A. Menegolli
; G. Meng
; C. Montanari
; O. Palamara
; L. Periale
; A. Piazzoli
; P. Picchi
; F. Pietropaolo
; A. Rappoldi
; G.L. Raselli
; C. Rubbia
; P.Sala
; G. Satta
; F. Varanini
; S. Ventura
; C. Vignoli
; | | Date: |
11 Apr 2007 | | Subject: | High Energy Physics - Phenomenology (hep-ph) | | Abstract: | The paper is considering an opportunity for the CERN/GranSasso (CNGS)
neutrino complex, concurrent time-wise with T2K and NOvA, to search for
theta_13 oscillations and CP violation. Compared with large water Cherenkov
(T2K) and fine grained scintillators (NOvA), the LAr-TPC offers a higher
detection efficiency and a lower backgrounds, since virtually all channels may
be unambiguously recognized. The present proposal, called MODULAr, describes a
20 kt fiducial volume LAr-TPC, following very closely the technology developed
for the ICARUS-T60o, and is focused on the following activities, for which we
seek an extended international collaboration:
(1) the neutrino beam from the CERN 400 GeV proton beam and an optimised horn
focussing, eventually with an increased intensity in the framework of the LHC
accelerator improvement program;
(2) A new experimental area LNGS-B, of at least 50000 m3 at 10 km off-axis
from the main Laboratory, eventually upgradable to larger sizes. A location is
under consideration at about 1.2 km equivalent water depth;
(3) A new LAr Imaging detector of at least 20 kt fiducial mass. Such an
increase in the volume over the current ICARUS T600 needs to be carefully
considered. It is concluded that a very large mass is best realised with a set
of many identical, independent units, each of 5 kt, "cloning" the technology of
the T600. Further phases may foresee extensions of MODULAr to meet future
physics goals.
The experiment might reasonably be operational in about 4/5 years, provided a
new hall is excavated in the vicinity of the Gran Sasso Laboratory and adequate
funding and participation are made available. | | Source: | arXiv, arxiv.0704.1422 | | Services: | Forum | Review | PDF | Favorites | |
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