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

LBNO Collaboration; Agarwalla, S. K.; Agostino, L.; Aittola, M.; Alekou, A.; Andrieu, B.; Antoniou, F.; Asfandiyarov, R.; Autiero, D.; Bésida, O.; Balik, A.; Ballett, P.; Bandac, I.; Banerjee, D.; Bartmann, W.; Bay, F.; Biskup, B.; Blebea-Apostu, A. M.; Blondel, A.; Bogomilov, M.; Bolognesi, S.; Borriello, E.; Brancus, I.; Bravar, A.; Buizza-Avanzini, M.; Caiulo, D.; Calin, M.; Calviani, M.; Campanelli, M.; Cantini, C.; Cata-Danil, G.; Chakraborty, S.; Charitonidis, N.; Chaussard, L.; Chesneanu, D.; Chipesiu, F.; Crivelli, P.; Dawson, J.; De Bonis, I.; Declais, Y.; Sanchez, P. Del Amo; Delbart, A.; Di Luise, S.; Duchesneau, D.; Dumarchez, J.; Efthymiopoulos, I.; Eliseev, A.; Emery, S.; Enqvist, T.; Enqvist, K.; Epprecht, L.; Erykalov, A. N.; Esanu, T.; Franco, D.; Friend, M.; Galymov, V.; Gavrilov, G.; Gendotti, A.; Giganti, C.; Gilardoni, S.; Goddard, B.; Gomoiu, C. M.; Gornushkin, Y. A.; Gorodetzky, P.; Haesler, A.; Hasegawa, T.; Horikawa, S.; Huitu, K.; Izmaylov, A.; Jipa, A.; Kainulainen, K.; Karadzhov, Y.; Khabibullin, M.; Khotjantsev, A.; Kopylov, A. N.; Korzenev, A.; Kosyanenko, S.; Kryn, D.; Kudenko, Y.; Kuusiniemi, P.; Lazanu, I.; Lazaridis, C.; Levy, J. -M.; Loo, K.; Maalampi, J.; Margineanu, R. M.; Marteau, J.; Martin-Mari, C.; Matveev, V.; Mazzucato, E.; Mefodiev, A.; Mineev, O.; Mirizzi, A.; Mitrica, B.; Murphy, S.; Nakadaira, T.; Narita, S.; Nesterenko, D. A.; Nguyen, K.; Nikolics, K.; Noah, E.; Novikov, Yu.; Oprima, A.; Osborne, J.; Ovsyannikova, T.; Papaphilippou, Y.; Pascoli, S.; Patzak, T.; Pectu, M.; Pennacchio, E.; Periale, L.; Pessard, H.; Popov, B.; Ravonel, M.; Rayner, M.; Resnati, F.; Ristea, O.; Robert, A.; Rubbia, A.; Rummukainen, K.; Saftoiu, A.; Sakashita, K.; Sanchez-Galan, F.; Sarkamo, J.; Saviano, N.; Scantamburlo, E.; Sergiampietri, F.; Sgalaberna, D.; Shaposhnikova, E.; Slupecki, M.; Smargianaki, D.; Stanca, D.; Steerenberg, R.; Sterian, A. R.; Sterian, P.; Stoica, S.; Strabel, C.; Suhonen, J.; Suvorov, V.; Toma, G.; Tonazzo, A.; Trzaska, W. H.; Tsenov, R.; Tuominen, K.; Valram, M.; Vankova-Kirilova, G.; Vannucci, F.; Vasseur, G.; Velotti, F.; Velten, P.; Venturi, V.; Viant, T.; Vihonen, S.; Vincke, H.; Vorobyev, A.; Weber, A.; Wu, S.; Yershov, N.; Zambelli, L.; Zito, M.

高能物理 - 现象学

arXiv:1412.0804 (hep-ph)

[提交于 2014年12月2日 ]

标题： LBNO在不同基线的两个常规中微子束的长基线振荡灵敏度

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

Authors:LAGUNA-LBNO Collaboration: S.K. Agarwalla (15), L. Agostino (1), M. Aittola (21), A. Alekou (2), B. Andrieu (24), F. Antoniou (2), R. Asfandiyarov (27), D. Autiero (25), O. Bésida (11), A. Balik (18), P. Ballett (14), I. Bandac (11), D. Banerjee (7), W. Bartmann (2), F. Bay (7), B. Biskup (2), A.M. Blebea-Apostu (9), A. Blondel (27), M. Bogomilov (3), S. Bolognesi (11), E. Borriello (28), I. Brancus (9), A. Bravar (27), M. Buizza-Avanzini (1), D. Caiulo (25), M. Calin (26), M. Calviani (2), M. Campanelli (4), C. Cantini (7), G. Cata-Danil (9), S. Chakraborty (28), N. Charitonidis (2), L. Chaussard (25), D. Chesneanu (9), F. Chipesiu (9), P. Crivelli (7), J. Dawson (1), I. De Bonis (18), Y. Declais (25), P. Del Amo Sanchez (18), A. Delbart (11), S. Di Luise (7), D. Duchesneau (18), J. Dumarchez (24), I. Efthymiopoulos (2), A. Eliseev (23), S. Emery (11), T. Enqvist (21), K. Enqvist (5), L. Epprecht (7), A.N. Erykalov (23), T. Esanu (26), D. Franco (25), M. Friend (8), V. Galymov (25), G. Gavrilov (23), A. Gendotti (7), C. Giganti (24), S. Gilardoni (2), B. Goddard (2), C.M. Gomoiu (26 and 9), Y.A. Gornushkin (17), P. Gorodetzky (1), A. Haesler (27), T. Hasegawa (8), S. Horikawa (7), K. Huitu (5), A. Izmaylov (13), A. Jipa (26), K. Kainulainen (6), Y. Karadzhov (27), M. Khabibullin (13), A. Khotjantsev (13), A.N. Kopylov (13), A. Korzenev (27), S. Kosyanenko (23), D. Kryn (1), Y. Kudenko (13 and 20 and 19), P. Kuusiniemi (21), I. Lazanu (26), C. Lazaridis (2), J.-M. Levy (24), K. Loo (6), J. Maalampi (6), R.M. Margineanu (9), J. Marteau (25), C. Martin-Mari (27), V. Matveev (13 and 17), E. Mazzucato (11), A. Mefodiev (13), O. Mineev (13), A. Mirizzi (28), B. Mitrica (9), S. Murphy (7), T. Nakadaira (8), S. Narita (16), D.A. Nesterenko (23), K. Nguyen (7), K. Nikolics et al. (60 additional authors not shown)

摘要：所提出的长基线中微子观测站（LBNO）最初由一个$\sim 20$吨的液态双相TPC和一个磁化铁 calorimeter 组成，将安装在距离CERN 2300公里的Pyhäsalmi矿井中。常规中微子束是由SPS加速器加速的400 GeV质子产生的，功率为700 kW。长基线提供了一个独特的机会，在其第一和第二振荡极大值上研究中微子味振荡，探索$L/E$行为，并区分来自$\delta_{CP}$和物质的效果。在本文中，我们展示了如果将一个在Protvino IHEP加速器综合体产生的中微子束，距离为1160公里，功率为450 kW，瞄准相同的远探测器，可以进一步增强和完善这一全面的物理案例。我们表明，如果从CERN和Protvino分别在不同基线上耦合两个独立的亚兆瓦级常规中微子和反中微子束，将允许在至少$3\sigma$的置信水平下测量轻子区的CP破坏，对于$\delta_{CP}$真实值的50%。使用一个70千吨的远探测器，组合后在运行10年后，对$\delta_{CP}$真实值的75%具有$3\sigma$的灵敏度。运行两个独立的中微子束，每个功率均低于1 MW，比长期运行一个新的高能多兆瓦设施更符合当今的技术水平，后者存在多个技术挑战，可能需要一个学习过程。

摘要： 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.

评论：	21页，12图
主题：	高能物理 - 现象学 (hep-ph) ; 高能物理 - 实验 (hep-ex)
引用方式：	arXiv:1412.0804 [hep-ph]
	(或者 arXiv:1412.0804v1 [hep-ph] 对于此版本)
	https://doi.org/10.48550/arXiv.1412.0804

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来自： Andre Rubbia [查看电子邮件]
[v1] 星期二， 2014 年 12 月 2 日 07:50:25 UTC (933 KB)

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标题： LBNO在不同基线的两个常规中微子束的长基线振荡灵敏度

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

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

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