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SUMMARY:Study of time lags in HETE-2 Gamma-Ray Bursts with redshift: searc
 h for astrophysical effects and Quantum Gravity signature
DTSTART;VALUE=DATE-TIME:20070709T194500Z
DTEND;VALUE=DATE-TIME:20070709T194500Z
DTSTAMP;VALUE=DATE-TIME:20260916T033449Z
UID:indico-contribution-336@cern.ch
DESCRIPTION:Speakers: Dr. BOLMONT\, Julien (DESY)\nThe study of time lags 
 between spikes in Gamma-Ray Bursts light curves in different energy bands 
 as a function \nof redshift may lead to the detection of effects due to Qu
 antum Gravity. We present an analysis of 15 Gamma-\nRay Bursts with measur
 ed redshift\, detected by the HETE-2 mission between 2001 and 2006 in orde
 r to measure \ntime lags related to astrophysical effects and search for Q
 uantum Gravity signature in the framework of an extra-\ndimension string m
 odel.\nThe wavelet transform method is used both for de-noising the light 
 curves and for sharp transition detection.  The \nuse of photon-tagged dat
 a allows us to consider various energy ranges. Systematic effects due to s
 election and \ncuts are evaluated.\nNo significant Quantum Gravity effect 
 is detected from the study of the maxima of the light curves and a lower \
 nlimit at 95% Confidence Level on the Quantum Gravity scale parameter of 1
 E15 GeV is set. The analysis of the \nminima of the light curves leads to 
 a more significant result on the Quantum Gravity scale\, to be further \ni
 nvestigated with higher statistics.\n\nhttps://indico.nucleares.unam.mx/ev
 ent/4/session/40/contribution/336
LOCATION:Merida\, Mexico Regency (Hyatt)
URL:https://indico.nucleares.unam.mx/event/4/session/40/contribution/336
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