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Atlas: A 2.3-Sigma Terminate Excess

This volition live an extremely brusk weblog postal service because 1 calendar month ago, I discussed the search for gluinos past times ATLAS based on the really same lastly states amongst 1 lepton, jets, in addition to MET. See the relevant May 2016 paper.




H5N1 to a greater extent than recent newspaper released past times ATLAS wants to search for altitude squarks (stops) using the same lastly state:
Search for altitude squarks inwards lastly states amongst 1 isolated lepton, jets, in addition to missing transverse momentum inwards \(\sqrt{s}=13\TeV\) \(pp\) collisions amongst the ATLAS detector
Unsurprisingly, the same eight muon events (plus iv electron) events appeared inwards this search equally well. They are only interpreted differently now.




In a highly inclusive SR1 (signal percentage one), the excess was quantified equally 2.3 sigma. No regain but a cute departure non to completely forget about.



On the right side of the next chart, yous may reckon that the expected exclusion crimp (dashed) was truly to a greater extent than ambitious than the observed one.



With some optimism, yous could advise that the yellowish exclusion percentage was repelled from the "truth" which may include a altitude squark of the majority betwixt \(700\GeV\) in addition to \(800\GeV\).

Julia Gonski, a Harvard PhD pupil (and a Rutgers alumnus amongst a thesis virtually SUSY at CMS!), wrote a brusk intriguing study virtually this ATLAS excess. The title, "Can't stop, won't stop: the continuing search for SUSY" is nice. Note that the discussion "stop" may refer to the altitude squark.

If the excess were due to novel physics, the 3.2 inverse femtobarns used inwards the newspaper higher upwards has already grown to 10+ inverse femtobarns amongst the 7+ of the 2016 data. By now, the 2.3 sigma excess could accept grown to \[

2.3 \times \sqrt{\frac{10}{3.2}}=4.1

\] sigma excess. That would live terrifying in addition to nosotros would ask heed virtually it inwards August. Note that the gluino interpretation of the channel suggested a \(1250\GeV\) gluino. Both a \(1250\GeV\) gluino in addition to a \(750\GeV\) halt (probably no human relationship to the diphoton bump is possible) would live a dream. ;-)



Related: The Lindau coming together of Nobel prize winners has began. Check e.g. a Twitter tag. David Gross said some interesting things. Supersymmetry is to a greater extent than compelling than whatsoever other physics beyond the Standard Model. Gross has made some large bets on it, too. Also, the \(100\TeV\) collider is the adjacent level. He also said that rumors can't live stopped but physicists should deport correct. And pointed out that Chu was incorrect to tell that no physics beyond the Standard Model has been observed: neutrino masses accept to live coming from BSM physics because the bare Majorana majority damage aren't gauge-invariant.

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