
Record 
Links 

Author 
Agarwalla, S.K.; Masud, M. 


Title 
Can Lorentz invariance violation affect the sensitivity of deep underground neutrino experiment? 
Type 
Journal Article 

Year 
2020 
Publication 
European Physical Journal C 
Abbreviated Journal 
Eur. Phys. J. C 


Volume 
80 
Issue 
8 
Pages 
716  18pp 


Keywords 



Abstract 
We examine the impact of Lorentz Invariance Violation (LIV) in measuring the octant of theta(23) and CP phases in the context of the Deep Underground Neutrino Experiment (DUNE). We consider the CPTviolating LIV parameters involving emu(a(e mu)) and etau (a(e tau)) flavors, which induce an additional interference term in neutrino and antineutrino appearance probabilities. This newinterference term depends on both the standard CP phase delta and the new dynamical CP phase phi(e mu)/phi(e tau), giving rise to new degeneracies among (theta(23), delta, phi). Taking one LIV parameter atatime and considering a small value of vertical bar a(e mu)vertical bar = vertical bar a(e tau)vertical bar = 5 x 10(24) GeV, we find that the octant discovery potential of DUNE gets substantially deteriorated for unfavorable combinations of delta and phi(e mu)/phi(e tau). The octant of theta(23) can only be resolved at 3 sigma if the true value of sin(2) theta(23) less than or similar to 0.42 or >= 0.62 for any choices of delta and phi. Interestingly, we also observe that when both the LIV parameters a(e mu) and a(e tau) are present together, they cancel out the impact of each other to a significant extent, allowing DUNE to largely regain its octant resolution capability. We also reconstruct the CP phases delta and phi(e mu)/phi(e tau). The typical 1 sigma uncertainty on delta is 1015 degrees. and the same on phi(e mu)/phi(e tau) is 2530 degrees depending on the choices of their true values. 


Address 
[Agarwalla, Sanjib Kumar; Masud, Mehedi] Inst Phys, Sachivalaya Marg, Bhubaneswar 751005, India, Email: sanjib@iopb.res.in; 


Corporate Author 

Thesis 



Publisher 
Springer 
Place of Publication 

Editor 



Language 
English 
Summary Language 

Original Title 



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Series Volume 

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Edition 



ISSN 
14346044 
ISBN 

Medium 



Area 

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Notes 
WOS:000557368800001 
Approved 
no 


Is ISI 
yes 
International Collaboration 
yes 


Call Number 
IFIC @ pastor @ 
Serial 
4493 

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