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The LBNO long-baseline oscillation sensitivities with two conventional neutrino beams at different baselines

S. K. Agarwalla L. Agostino 1 M. Aittola A. Alekou B. Andrieu 2 F. Antoniou R. Asfandiyarov D. Autiero 3 O. Bésida 4 A. Balik 5 P. Ballett I. Bandac D. Banerjee W. Bartmann F. Bay B. Biskup A. M. Blebea-Apostu A. Blondel M. Bogomilov S. Bolognesi E. Borriello I. Brancus A. Bravar M. Buizza-Avanzini 1 D. Caiulo 3 M. Calin M. Calviani M. Campanelli C. Cantini G. Cata-Danil S. Chakraborty N. Charitonidis L. Chaussard 3 D. Chesneanu F. Chipesiu P. Crivelli J. Dawson 1 I. de Bonis 5 Y. Declais 3 P. del Amo Sanchez 5 A. Delbart 4 S. Di Luise D. Duchesneau 5 J. Dumarchez 2 I. Efthymiopoulos A. Eliseev S. Emery 4 T. Enqvist K. Enqvist L. Epprecht A. N. Erykalov T. Esanu D. Franco 1 M. Friend V. Galymov 3 G. Gavrilov A. Gendotti C. Giganti 2 S. Gilardoni B. Goddard C. M. Gomoiu Y. A. Gornushkin P. Gorodetzky A. Haesler T. Hasegawa S. Horikawa K. Huitu A. Izmaylov A. Jipa K. Kainulainen Y. Karadzhov M. Khabibullin A. Khotjantsev A. N. Kopylov A. Korzenev S. Kosyanenko D. Kryn 1 Y. Kudenko P. Kuusiniemi I. Lazanu C. Lazaridis J. -M. Levy K. Loo J. Maalampi R. M. Margineanu J. Marteau 3 C. Martin-Mari V. Matveev E. Mazzucato 4 A. Mefodiev O. Mineev A. Mirizzi B. Mitrica S. Murphy T. Nakadaira S. Narita D. A. Nesterenko K. Nguyen K. Nikolics E. Noah Yu. Novikov A. Oprima J. Osborne T. Ovsyannikova Y. Papaphilippou S. Pascoli T. Patzak 1 M. Pectu E. Pennacchio 3 L. Periale H. Pessard 5 B. Popov 2 M. Ravonel M. Rayner F. Resnati O. Ristea A. Robert A. Rubbia K. Rummukainen A. Saftoiu K. Sakashita F. Sanchez-Galan J. Sarkamo N. Saviano E. Scantamburlo F. Sergiampietri D. Sgalaberna E. Shaposhnikova M. Slupecki D. Smargianaki D. Stanca R. Steerenberg A. R. Sterian P. Sterian S. Stoica C. Strabel J. Suhonen V. Suvorov G. Toma A. Tonazzo 1 W. H. Trzaska R. Tsenov K. Tuominen M. Valram G. Vankova-Kirilova F. Vannucci G. Vasseur 4 F. Velotti P. Velten V. Venturi T. Viant S. Vihonen H. Vincke A. Vorobyev A. Weber S. Wu N. Yershov L. Zambelli M. Zito 4
Abstract : The proposed Long Baseline Neutrino Observatory (LBNO) initially consists of $\sim 20$ kton liquid double phase TPC complemented by a magnetised iron calorimeter, to be installed at the Pyh\"asalmi mine, at a distance of 2300 km from CERN. The conventional neutrino beam is produced by 400 GeV protons accelerated at the SPS accelerator delivering 700 kW of power. The long baseline provides a unique opportunity to study neutrino flavour oscillations over their 1st and 2nd oscillation maxima exploring the $L/E$ behaviour, and distinguishing effects arising from $\delta_{CP}$ and matter. In this paper we show how this comprehensive physics case can be further enhanced and complemented if a neutrino beam produced at the Protvino IHEP accelerator complex, at a distance of 1160 km, and with modest power of 450 kW is aimed towards the same far detectors. We show that the coupling of two independent sub-MW conventional neutrino and antineutrino beams at different baselines from CERN and Protvino will allow to measure CP violation in the leptonic sector at a confidence level of at least $3\sigma$ for 50\% of the true values of $\delta_{CP}$ with a 20 kton detector. With a far detector of 70 kton, the combination allows a $3\sigma$ sensitivity for 75\% of the true values of $\delta_{CP}$ after 10 years of running. Running two independent neutrino beams, each at a power below 1 MW, is more within today's state of the art than the long-term operation of a new single high-energy multi-MW facility, which has several technical challenges and will likely require a learning curve.
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Submitted on : Friday, December 5, 2014 - 2:36:26 PM
Last modification on : Friday, November 6, 2020 - 3:48:11 PM

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  • HAL Id : in2p3-01091466, version 1
  • ARXIV : 1412.0804


S. K. Agarwalla, L. Agostino, M. Aittola, A. Alekou, B. Andrieu, et al.. The LBNO long-baseline oscillation sensitivities with two conventional neutrino beams at different baselines. 2014. ⟨in2p3-01091466⟩



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