Journal of High Energy Physics

, 2012:49

Precision measurement of the neutrino velocity with the ICARUS detector in the CNGS beam

  • The ICARUS collaboration
  • M. Antonello
  • B. Baibussinov
  • P. Benetti
  • F. Boffelli
  • E. Calligarich
  • N. Canci
  • S. Centro
  • A. Cesana
  • K. Cieslik
  • D. B. Cline
  • A. G. Cocco
  • A. Dabrowska
  • D. Dequal
  • A. Dermenev
  • R. Dolfini
  • C. Farnese
  • A. Fava
  • A. Ferrari
  • G. Fiorillo
  • D. Gibin
  • S. Gninenko
  • A. Guglielmi
  • M. Haranczyk
  • J. Holeczek
  • A. Ivashkin
  • J. Kisiel
  • I. Kochanek
  • J. Lagoda
  • S. Mania
  • A. Menegolli
  • G. Meng
  • C. Montanari
  • S. Otwinowski
  • A. Piazzoli
  • P. Picchi
  • F. Pietropaolo
  • P. Plonski
  • A. Rappoldi
  • G. L. Raselli
  • M. Rossella
  • C. Rubbia
  • P. Sala
  • E. Scantamburlo
  • A. Scaramelli
  • E. Segreto
  • F. Sergiampietri
  • D. Stefan
  • J. Stepaniak
  • R. Sulej
  • M. Szarska
  • M. Terrani
  • F. Varanini
  • S. Ventura
  • C. Vignoli
  • H. G. Wang
  • X. Yang
  • A. Zalewska
  • A. Zani
  • K. Zaremba
  • P. Alvarez Sanchez
  • L. Biagi
  • R. Barzaghi
  • B. Betti
  • L.-G. Bernier
  • G. Cerretto
  • C. De Gaetani
  • H. Esteban
  • T. Feldmann
  • J. D. Gonzalez Cobas
  • D. Passoni
  • V. Pettiti
  • L. Pinto
  • J. Serrano
  • P. Spinnato
  • M. G. Visconti
  • T. Wlostowski
Open Access
Article

DOI: 10.1007/JHEP11(2012)049

Cite this article as:
The ICARUS collaboration, Antonello, M., Baibussinov, B. et al. J. High Energ. Phys. (2012) 2012: 49. doi:10.1007/JHEP11(2012)049

Abstract

During May 2012, the CERN-CNGS neutrino beam has been operated for two weeks for a total of ~1.8 × 1017 p.o.t., with the proton beam made of bunches, few ns wide and separated by 100 ns. This beam structure allows a very accurate time of flight measurement of neutrinos from CERN to LNGS on an event-by-event basis. Both the ICARUS-T600 PMT-DAQ and the CERN-LNGS timing synchronization have been substantially improved for this campaign, taking advantage of additional independent GPS receivers, both at CERN and LNGS as well as of the deployment of the “White Rabbit” protocol both at CERN and LNGS. The ICARUS-T600 detector has collected 25 beam-associated events; the corresponding time of flight has been accurately evaluated, using all different time synchronization paths. The measured neutrino time of flight is compatible with the arrival of all events with speed equivalent to the one of light: the difference between the expected value based on the speed of light and the measured value is δt = tofc−tofν = 0.10 ± 0.67stat. ± 2.39syst. ns. This result is in agreement with the value previously reported by the ICARUS Collaboration, δt = 0.3 ± 4.9stat. ± 9.0syst. ns, but with improved statistical and systematic accuracy.

Keywords

Neutrino Detectors and Telescopes 
Download to read the full article text

Copyright information

© SISSA 2012

Authors and Affiliations

  • The ICARUS collaboration
  • M. Antonello
    • 1
  • B. Baibussinov
    • 2
  • P. Benetti
    • 3
  • F. Boffelli
    • 3
  • E. Calligarich
    • 3
  • N. Canci
    • 1
  • S. Centro
    • 2
  • A. Cesana
    • 5
  • K. Cieslik
    • 6
  • D. B. Cline
    • 7
  • A. G. Cocco
    • 4
  • A. Dabrowska
    • 6
  • D. Dequal
    • 2
  • A. Dermenev
    • 8
  • R. Dolfini
    • 3
  • C. Farnese
    • 2
  • A. Fava
    • 2
  • A. Ferrari
    • 9
  • G. Fiorillo
    • 4
  • D. Gibin
    • 2
  • S. Gninenko
    • 8
  • A. Guglielmi
    • 2
  • M. Haranczyk
    • 6
  • J. Holeczek
    • 13
  • A. Ivashkin
    • 8
  • J. Kisiel
    • 13
  • I. Kochanek
    • 13
  • J. Lagoda
    • 12
  • S. Mania
    • 13
  • A. Menegolli
    • 3
  • G. Meng
    • 2
  • C. Montanari
    • 3
  • S. Otwinowski
    • 7
  • A. Piazzoli
    • 3
  • P. Picchi
    • 14
  • F. Pietropaolo
    • 2
  • P. Plonski
    • 15
  • A. Rappoldi
    • 3
  • G. L. Raselli
    • 3
  • M. Rossella
    • 3
  • C. Rubbia
    • 1
    • 9
  • P. Sala
    • 5
  • E. Scantamburlo
    • 11
  • A. Scaramelli
    • 5
  • E. Segreto
    • 1
  • F. Sergiampietri
    • 16
  • D. Stefan
    • 1
  • J. Stepaniak
    • 12
  • R. Sulej
    • 1
    • 12
  • M. Szarska
    • 6
  • M. Terrani
    • 5
  • F. Varanini
    • 2
  • S. Ventura
    • 2
  • C. Vignoli
    • 1
  • H. G. Wang
    • 7
  • X. Yang
    • 7
  • A. Zalewska
    • 6
  • A. Zani
    • 3
  • K. Zaremba
    • 15
  • P. Alvarez Sanchez
    • 9
  • L. Biagi
    • 17
  • R. Barzaghi
    • 17
  • B. Betti
    • 17
  • L.-G. Bernier
    • 18
  • G. Cerretto
    • 19
  • C. De Gaetani
    • 17
  • H. Esteban
    • 20
  • T. Feldmann
    • 21
    • 10
  • J. D. Gonzalez Cobas
    • 9
  • D. Passoni
    • 17
  • V. Pettiti
    • 19
  • L. Pinto
    • 17
  • J. Serrano
    • 9
  • P. Spinnato
    • 1
  • M. G. Visconti
    • 17
  • T. Wlostowski
    • 9
  1. 1.INFN — Laboratori Nazionali del Gran SassoAssergiItaly
  2. 2.Dipartimento di Fisica e Astronomia e INFNUniversità di PadovaPadovaItaly
  3. 3.Dipartimento di Fisica e INFNUniversità di PaviaPaviaItaly
  4. 4.Dipartimento di Scienze Fisiche e INFNUniversità Federico IINapoliItaly
  5. 5.INFN, Sezione di Milano e PolitecnicoMilanoItaly
  6. 6.H.Niewodniczanski Institute of Nuclear PhysicsKrakówPoland
  7. 7.Department of Physics and AstronomyUniversity of CaliforniaLos AngelesU.S.A.
  8. 8.Institute for Nuclear Research of the Russian Academy of SciencesMoscowRussia
  9. 9.CERN, European Laboratory for Particle PhysicsGeneve 23Switzerland
  10. 10.TimeTechStuttgartGermany
  11. 11.Università di L’AquilaL’AquilaItaly
  12. 12.National Centre for Nuclear ResearchOtwock/SwierkPoland
  13. 13.IInstitute of PhysicsUniversity of SilesiaKatowicePoland
  14. 14.INFN Laboratori Nazionali di FrascatiFrascatiItaly
  15. 15.Institute of RadioelectronicsWarsaw Univ. of TechnologyWarsawPoland
  16. 16.Dipartimento di Fisica e INFNUniversità di PisaPisaItaly
  17. 17.DIIAR-Politecnico di MilanoMilanoItaly
  18. 18.METAS Federal Office of MetrologyBern-WabernSwitzerland
  19. 19.Optics Division, INRIM (Istituto Nazionale di Ricerca Metrologica)TorinoItaly
  20. 20.Time DepartmentReal Instituto y Observatorio de la Armada (ROA)San FernandoSpain
  21. 21.Physikalisch-Technische Bundesanstalt (PTB)BraunschweigGermany

Personalised recommendations