Maximum likelihood analysis of the first KamLAND results

Details Maximum likelihood analysis of the first KamLAND results Maximum likelihood analysis of the first KamLAND results

2003-02-25

arxiv.org/abs/hep-ph/0302230v2

J.Phys.G29:2107-2114,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, 5 figures

Scientific paper

10.1088/0954-3899/29/9/306

A maximum likelihood approach has been used to analize the first results from KamLAND emphasizing the application of this method for low statistics samples. The goodness of fit has been determined exploiting a simple Monte Carlo approach in order to test two different null hytpotheses. It turns out that with the present statistics the neutrino oscillation hypothesis has a significance of about 90% (the best-fit for the oscillation parameters from KamLAND are found to be: $\delta m_{12}^2 \sim 7.1 \times 10^{-5}$ eV$^2$ and $\sin^2 \theta_{12} = 0.424/0.576$), while the no-oscillation hypothesis of about 50%. Through the likelihood ratio the hypothesis of no disappearence is rejected at about 99.9% C.L. with the present data from the positron spectrum. A comparison with other analyses is presented.

Affiliated with

Also associated with

No associations

Rating

Maximum likelihood analysis of the first KamLAND results does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Maximum likelihood analysis of the first KamLAND results, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Maximum likelihood analysis of the first KamLAND results will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-482690