Study of nonstandard interactions mediated by a scalar field at the ESSnuSB experiment

(ESSnuSB) Aguilar, J; Anastasopoulos, M; Baussan, E; Bhattacharyya, AK; Bignami, A; Blennow, M; Bogomilov, M; Bolling, B; Bouquerel, E; Bramati, F; Branca, A; Brorsson, W; Brunetti, G; Bustinduy, I; Carlile, CJ; Cederkall, J; Choi, TW; Choubey, S; Christiansen, P; Collins, M; Morales, EC; Danared, H; Dancila, D; Andre, JPAMD; Dracos, M; Efthymiopoulos, I; Ekelöf, T; Eshraqi, M; Fanourakis, G; Farricker, A; Fasoula, E; Fukuda, T; Gazis, N; Geralis, T; Ghosh, M; Giarnetti, A; Gokbulut, G; Hagner, C; Halic, L; Hariharan, VT; Iversen, KE; Jenssen, M; Johansson, R; Kasimi, E; Topaksu, AK; Kildetof, B; Klicek, B; Kordas, K; Leisos, A; Lindroos, M; Longhin, A; Maiano, C; Marangoni, S; Marrelli, C; Martins, C; Meloni, D; Mezzetto, M; Milas, N; Munoz, JL; Oglakci, M; Ohlsson, T; Olvegard, M; Pari, M; Patrzalek, D; Petkov, G; Petridou, C; Poussot, P; Psallidas, A; Pupilli, F; Raikwal, D; Saiang, D; Sampsonidis, D; Schwab, C; Sordo, F; Sosa, A; Stavropoulos, G; Stipcevi, M; Tarkeshian, R; Terranova, F; Tolba, T; Trachanas, E; Tsenov, R; Tsirigotis, A; Tzamarias, SE; Vankova-Kirilova, G; Vassilopoulos, N; Vihonen, S; Wurtz, J; Zeter, V; Zormpa, O; Zou, Y. (2024) Study of nonstandard interactions mediated by a scalar field at the ESSnuSB experiment. Physical Review D, 109 (11). ISSN 2470-0029

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Abstract

In this paper, we study scalar mediator induced nonstandard interactions (SNSIs) in the context of the ESSnuSB experiment. In particular, we study the capability of ESSnuSB to put bounds on the SNSI parameters and also study the impact of SNSIs in the measurement of the leptonic CP phase delta CP. Existence of SNSIs modifies the neutrino mass matrix and this modification can be expressed in terms of three diagonal real parameters (eta ee , eta mu mu , and eta tau tau ) and three off -diagonal complex parameters (eta e mu , eta e tau , and eta mu tau ). Our study shows that the upper bounds on the parameters eta mu mu and eta tau tau depend upon how Delta m 231 is minimized in the theory. However, this is not the case when one tries to measure the impact of SNSIs on delta CP. Further, we show that the CP sensitivity of ESSnuSB can be completely lost for certain values of eta ee and eta mu tau for which the appearance channel probability becomes independent of delta CP.

Item Type:	Article
Uncontrolled Keywords:	neutrino physics; neutrino oscillation experiments; simulation
Subjects:	NATURAL SCIENCES > Physics > Astronomy and Astrophysics
Divisions:	Division of Experimental Physics
Projects:	Project title Project leader Project code Project type Potpora vrhunskim istraživanjima Centra izvrsnosti za napredne materijale i senzore- Mile Ivanda; Milko Jakšić; Mario Stipčević; Marko Kralj KK.01.1.1.01.0001 EK Study of the use of the ESS facility to accurately measure the neutrino cross-sections for ESSnuSB leptonic CP violation measurements and to perform sterile neutrino searches and astroparticle physics Budimir Kliček 101094628 Znanstveno-istraživački projekt
Depositing User:	Lorena Palameta
Date Deposited:	07 Nov 2024 08:36
URI:	http://fulir.irb.hr/id/eprint/9250
DOI:	10.1103/PhysRevD.109.115010

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