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SPECTROMETER(S) Prospects for a New Neutrino
CERN-PS Experiment
NESSiE
Neutrino Experiment with SpectrometerS in Europe
Technical Proposal jointly submitted to SPS-C
arXiv1230.3432, April 2012
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Experimental motivations

• In the last decade a set of experimental results
  challenged the 3 n framework? no one conclusive,
  but all pointing toward the same direction

LSND
MiniBooNE n and n-bar
Gallium MCi exposure
Cosmology
Reactor n-bar anomaly
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A conclusive experiment

• A coupled system of LAr detector muon
  spectrometer for
• Observation ofall reaction channels(nm, ne CC,
  NC)through the uniqueLAr-TPC imagingcapabilitie
  s
• Charge separationand muon momentumextension
  with amagnetized ironspectrometer
• Different sitesnear (300 m) far (1600 m)

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Where CERN North Area

• 100 GeV primary beam fast extracted from SPS
• Target station next to TCC2
• Decay pipe L 100 m, ø 3 m
• Beam dump 15 m of Fe with graphite core,
  followed by µ stations
• Neutrino beam angle pointing upwards, at -3m in
  the far detector, 5 mrad slope

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The ICARUS-NESSIE Collaborators

• M. Antonello1, D. Bagliani2, B. Baibussinov5, M.
  Benettoni5, P. Bernardini25,26, A. Bertolin5, H.
  Bilokon6, F. Boffelli8, M. Bonesini9, C. Bozza31,
  R. Brugnera4,5, E. Calligarich8, N. Canci1, A.
  Cecchetti6, S. Cecchini24, S. Centro4,5, A.
  Cesana10, K. Cieslik11, D. B. Cline12, A. G.
  Cocco14, G. Collazuol5,6, P. Creti26, F. Dal
  Corso5, I. De Mitri25,26, D. Dequal4,5, A.
  Dermenev15, G. De Robertis22, M. De Serio22, L.
  Degli Esposti24, D. Di Ferdinando24,R.
  Dolfini7,8, M. De Gerone2,3, U. Dore28,29, S.
  Dusini5, S. Dussoni2,3, P. Fabbricatore3, C.
  Fanin5, C. Farnese4, A. Fava5, A. Ferrari16, R.
  A. Fini22, G. Fiore26, G. Fiorillo13,14, A.
  Garfagnini4,5, G. T. Garvey17, F. Gatti2,3, G.
  Giacomelli23,24, R. Giacomelli24, D. Gibin4,5, S.
  Gninenko15, G. Grella30, C. Guandalini24, F.
  Guber15, M. Guerzoni24, A. Guglielmi5, M.
  Haranczyk11, J. Holeczek18, A. Ivashkin15, M.
  Kirsanov15, J. Kisiel18, I. Kochanek18, U. Kose5,
  A. Kurepin15, J. Lagoda19, G. Laurenti24, M.
  Laveder4,5, I. Lippi5, F. Loddo22, A. Longhin6,
  P. Loverre28,29, G. Lucchini9, W. C. Louis17, G.
  Mancarella25,26, G. Mandrioli24, S. Mania18, G.
  Mannocchi6, S. Marchini5, A. Margiotta23,24, G.
  Marsella26,27, V. Matveev15, N. Mauri6, E.
  Medinaceli4,5, A. Menegolli7,8, G. Meng5, A.
  Mengucci6, M. Mezzetto5, R. Michinelli24, G. B.
  Mills17, C. Montanari8, M. T. Muciaccia21,22, M.
  Nicoletto5, D. Orecchini6, S. Otwinowski12, T. J.
  Palczewski19, A. Paoloni6, G. Passardi16, A.
  Pastore21,22, L. Patrizii24, F. Perfetto13,14, P.
  Picchi6, F. Pietropaolo5, P. Plonski20, M.
  Pozzato23,24, A. Rappoldi8, G. L. Raselli8, R.
  Rescigno30, G. Rosa28,29, M. Rossella8, C.
  Rubbia1,16, P. Sala10, A. Scaramelli10, E.
  Segreto1, S. Simone21,22, M. Sioli23,24, G.
  Sirri24, M. Spurio23,24, L. Stanco5, S.
  Stellacci30, D. Stefan1, J. Stepaniak19, R.
  Sulej19, A. Surdo26, O. Suvorova15, M.
  Tenti23,24, M. Terrani10, D. Tlisov15, V. Togo24,
  R. G. Van de Water17, G. Trinchero6, M. Turcato5,
  F. Varanini4, M. Ventura6, S. Ventura5, C.
  Vignoli1, H. G. Wang12, X. Yang12, M. Zago5, A.
  Zani8 and K. Zaremba20.

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Produced documentation so far

• Relevant documents sent to SPS Committee by the
  ICARUS and NESSiE Collaborations
• a Memorandum from the ICARUS collaboration
  (SPSC-M-773) of March 9, 2011
• Proposal A comprehensive search for
  ltltanomaliesgtgt from neutrino and anti-neutrino
  oscillations at large mass differences (Dm2
  1eV2) with two LArTPC imaging detectors at
  different distances from the CERN-PS
  (SPSC-P-345) of Oct. 14th, 2011  
•   Proposal Prospect for Charge Current Neutrino
  Interactions Measurements at the CERN-PS with
  two magnetic spectrometers for measuring CC
  neutrino interactions (SPSC-P-343) of Oct. 11th,
  2011
• Joint Technical proposal Search for anomalies
  from neutrino and anti-neutrino oscillations at
  Dm2 1eV2 with muon spectrometers and large
  LArTPC imaging detectors (SPSC-P-347) of March
  15th, 2012.

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Beam Studies at SPS

• 100 GeV proton, Fast Extraction (10.5 ms),
  Luminosity as at CNGS (conservative)

On-Axis !!
CC muons
CC electrons
Scenario defined for DATA Taking 2 years of
anti-n followed by 1 year n
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NESSiE detector concept

• NESSiE (Neutrino Experiment with SpectrometerS in
  Europe)
• Goal
• Allow charge separation and momentummeasurement
  of as many muons as possibleescaping from LAr
  (large statistics ? low sin22q)
• Go as low as possible in muon momentum(low
  momenta ? low Dm2)
• Possibility to also study (NESSiE) internal
  events(coarser resolution w.r.t. LAr)
• Solution
• Air-core magnets for low momentum muons escaping
  from LAr(Em lt 0.5 GeV/c in NESSiE ? ?En? lt 1 GeV
  in LAr)
• Downstream massive iron dipolar magnets for
  higher momenta extension

Dm2
Statistics
Spectrun
sin22q
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Muon disappearance signal
Measured muon momenta in Far detector for anti-nm
CC and nm CC with oscillation (red) compared
to the non-oscillated distribution. Event rates
are for 4.5x1019 pot at 100 GeV, negative
polarity reconstructed in the fiducial volumes of
the Spectrometer alone
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Comparison with MINOS limits
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Air-core magnet

• New concept for a largetransverse area magnetic
  fieldin air (40 m2)
• B 0.15 T
• Power lt 2 MW
• To be coupled to a mm detector(different
  possibilities under study)

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NESSiE iron dipolar magnets
Coils
B 1.5 T
1800 700 m2 of RPC 20000 12000 digital
channels
detector layers
B
B
FAR
NEAR
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Detector configuration (far position)
ACM
dipolar (1 arm) dipolar (2 arms)
Charge mis-reconstructionat few percent level in
alldynamical range of interest (full simulation
includingselection, efficiency andrecontruction)
n
Picture credits G. Sirri
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NESSiE time schedule

• Physics proposal submitted to SPSC in Oct 2011
  arXiv 1111.2242v1
• In the meanwhile
• Request to switch PS ? SPS
• Joint technical proposal submitted to SPSC in
  March 2012 arXiv1203.3432
• From green-light, we expect 3 years of
  prototyping and construction? run in 2016

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Actions in the near future
SEPTEMBER evaluation at European Strategy Group
(CERN) evaluation at Research
Board evaluation at
CN-II OCTOBER submission to CTS JANUARY
requests s.j. (A) for Prototypes and Technical
Studies End 2013 requests s.j. (B, extra CN-II)
for starting tenders
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NESSiE
Collaboration
Bari 0.6 FTE/3 Bologna 2.0/5 Frascati
0.5/2 Lecce 3.2/7 TOTAL
10.7 FTE / 29 people Padova 3.8/9 Roma1
0.6/3 almost factor 3 in FTE with respect last
year

• In the near future
• joint submission to European Strategy for
• RD for far future LBL
• enlarge Physics investigation in case of discovery

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Coinvolgimenti BARI Simulazione, Front-End
BOLOGNA Simulazione, Software, DAQ, Disegno,
Meccanica FRASCATI Simulazioni, Disegno,
Rivelatori, Meccanica LECCE Rivelatori,
Meccanica, Front-End, DAQ PADOVA Simulazione,
Disegno, DAQ, Meccanica ROMA-1 Simulazione e
Software
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NESSiE
Gruppo di Padova
M. Benettoni (30) A.Bertolin (60).
Responsabile Locale F.Dal Corso (10) S. Dusini
(40) C.Fanin (10) U.Kose (30) M. Laveder
(20) I.Lippi(60) E.Medinaceli(40) M.Mezzetto
(20) C.Sirignano (20) L.Stanco (40).
Responsabile Nazionale
3.8 FTE

• Riferimenti nella collaborazione
• Stefano Dusini Simulazione Detector e DAQ
• - Luca Stanco Supervisione Collaborazione

Nel 2013 dovranno partire con le gare, test di
rivelatori, allestimento sale sp. A Padova si
chiedono 6 mesi-uomo di Ingegnere e 12 mesi-uomo
di disegnatore
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NESSiE
Richieste finanziarie 2013
(Richieste molto corpose, modulo lapprovazione)
Missioni Interne 14655(s.j.) (3020 a PD)
Missioni Estero 10920(s.j) (4520 a PD)
Consumo 142860(s.j.) (250 a PD)
Inventario 15 (0 a PD)
? Tot 412 K 935(s.j.), di cui a Padova
10040(s.j.)
? Inoltre, per fine 2013 chiesti 2000 K
Richieste ai servizi PADOVA per il 2013
Elettronica 2 m.u. per consulenza DAQ
2 m.u. per consulenza
Front-End Meccanica 12 mesi uomo
prototipizzazione Uffico Tecnico 612 mesi per
Struttura meccanica