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FIZIKA B 18 (2009) 4, 219-226
 
POSSIBLE CPT VIOLATION FROM PLANCK SCALE EFFECTS
BIPIN SINGH KORANGAa, MOHAN NARAYANb and S. UMA SANKARa
aDepartment of Physics, Indian Institute of Technology, Bombay,
Mumbai 400 076, India
bDepartment of Physics, Mumbai University Institute of Chemical
Technology, Mumbai 400 019, India
E-mail addresses:
bipiniitb@rediffmail.com ,
mohan@udct.org uma@phy.iitb.ac.in
Received 21 September 2009; Accepted 18 November 2009
Online 11 December 2009
At present there is good agreement between the neutrino mass-squared
difference determined from the solar neutrino data and the anti-neutrino
mass-squared difference determined from the KamLAND reactor anti-neutrino
experiment. However, the central values of the two cases differ from each other
by about 10-5 eV2. An improvement in the accuracy of both the solar
neutrino experiments and reactor anti-neutrino experiments could establish the
existence of a non-zero difference between neutrino and anti-neutrino
mass-squared differences and provide a signal for CPT violation. In this paper,
we show how such a difference can arise through the CPT violating neutrino mass
terms from Planck scale physics.
PACS numbers: 14.60.Pq
UDC 539.123
Keywords: neutrino mass square difference, CPT violation, Planck scale
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