https://doi.org/10.1140/epjc/s10052-021-09845-8
Regular Article - Theoretical Physics
Updated physics performance of the ESSnuSB experiment
ESSnuSB collaboration
1
CERN, 1211, Geneva 23, Switzerland
2
Uppsala University, P.O. Box 256, 751 05, Uppsala, Sweden
3
IPHC, Université de Strasbourg, CNRS/IN2P3, Strasbourg, France
4
European Spallation Source, Box 176, 221 00, Lund, Sweden
5
Department of Physics, School of Engineering Sciences, KTH Royal Institute of Technology, Roslagstullsbacken 21, 106 91, Stockholm, Sweden
6
The Oskar Klein Centre, AlbaNova University Center, Roslagstullsbacken 21, 106 91, Stockholm, Sweden
7
Faculty of Physics, Sofia University St. Kliment Ohridski, 1164, Sofia, Bulgaria
8
Department of Physics, Lund University, P.O Box 118, 221 00, Lund, Sweden
9
Department of Physics and Astronomy, FREIA, Uppsala University, Box 516, 751 20, Uppsala, Sweden
10
Faculty of Engineering, Lund University, P.O Box 118, 221 00, Lund, Sweden
11
University of Milano-Bicocca and INFN sez. di Milano-Bicocca, Milan, Italy
12
Institute of Nuclear and Particle Physics, NCSR Demokritos, Neapoleos 27, 15341, Agia Paraskevi, Greece
13
Departamento de Fisica Teorica and Instituto de Fisica Teorica, IFT-UAM/CSIC, Universidad Autonoma de Madrid, Cantoblanco, 28049, Madrid, Spain
14
Center of Excellence for Advanced Materials and Sensing Devices, Ruder Bošković Institute, 10000, Zagreb, Croatia
15
School of Physics, University of Hyderabad, 500046, Hyderabad, India
16
Department of Physics, Faculty of Science and Letters, University of Cukurova, 01330, Adana, Turkey
17
Department of Physics, University of Rijeka, 51000, Rijeka, Croatia
18
INFN sez. di Padova, Padua, Italy
19
Institute for Experimental Physics, Hamburg University, 22761, Hamburg, Germany
20
Spallation Neutron Science Center, 523803, Dongguan, China
21
resent address: The center for Exotic Nuclear Studies, Institute for Basic Science, 34126, Daejeon, Korea
p
loris.dalessi@iphc.cnrs.fr
aa
mghosh@irb.hr
ae
budimir.klicek@irb.hr
Received:
29
July
2021
Accepted:
17
November
2021
Published online:
23
December
2021
In this paper, we present the physics performance of the ESSnuSB experiment in the standard three flavor scenario using the updated neutrino flux calculated specifically for the ESSnuSB configuration and updated migration matrices for the far detector. Taking conservative systematic uncertainties corresponding to a normalization error of 
for signal and 
for background, we find that there is 
CP violation discovery sensitivity for the baseline option of 540 km (360 km) at 
. The corresponding fraction of 
for which CP violation can be discovered at more than 
is 
. Regarding CP precision measurements, the 
error associated with 
is around 
and with 
is around 
for the baseline option of 540 km (360 km). For hierarchy sensitivity, one can have 
sensitivity for 540 km baseline except and 
sensitivity for 360 km baseline for all values of . The octant of 
can be determined at 
for the values of: 
(
and 
) for baseline of 540 km (360 km). Regarding measurement precision of the atmospheric mixing parameters, the allowed values at are: 
(
) and 
eV
eV
(
eV
eV) for the baseline of 540 km (360 km).
© The Author(s) 2021
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Funded by SCOAP3
