New CMS Results From LHC Jamboree

Jim Olsen is giving the CMS talk on 13 TeV results. CMS recorded 90% of the 4 inverse femtobarns delivered by the LHC, but only 2.8/fb were taken with the magnet at 3.8 Tesla (for the rest of the time the magnet was off due to a problem with the helium purity).A plot of the dimuon invariant mass of 60,000,000 events collected by dimuon triggers was shown, which is a pleasure to watch. I will attach it here later.CMS has 18 new searches for beyond-the-standard model effects. For objects with masses above 1 TeV the sensitivity of 2.2/fb of analyzed data may be larger than the sensitivity of 2012 data.The diboson bump at 2 TeV is almost completely ruled out; so is the edge signal of SUSY that was seen in run 1 (a 2.6 sigma excess back then).

Jim Olsen is giving the CMS talk on 13 TeV results. CMS recorded 90% of the 4 inverse femtobarns delivered by the LHC, but only 2.8/fb were taken with the magnet at 3.8 Tesla (for the rest of the time the magnet was off due to a problem with the helium purity).
A plot of the dimuon invariant mass of 60,000,000 events collected by dimuon triggers was shown, which is a pleasure to watch. I will attach it here later.

CMS has 18 new searches for beyond-the-standard model effects. For objects with masses above 1 TeV the sensitivity of 2.2/fb of analyzed data may be larger than the sensitivity of 2012 data.

The diboson bump at 2 TeV is almost completely ruled out; so is the edge signal of SUSY that was seen in run 1 (a 2.6 sigma excess back then).

No deviation is seen in gluino searches. The limit extends to 1.7 TeV, thus ruling out the region favoured by Gordon Kane in a recent paper.
The narrow diphoton bump at 760 GeV seen by CMS is a 2.6 sigma effect, but once one takes into account the look-elsewhere effect, the significance goes down to 1.2 sigma. However, by combining with 8 TeV CMS data, the excess becomes a 3-sigma thing and 1.7 after accounting for the LEE correction.

Categories

Tommaso Dorigo

Professor Tommaso Dorigo is an experimental particle physicist, who works for the INFN at the University of Padova, and collaborates with the CMS experiment at the CERN LHC. He is currently a RECAT Guest Professor at Lulea University of Technology, and participates in the EIC-PATHFINDER project "PHINDER". Dorigo is the president of the USERN organization (https://usern.org), and the editor in chief of the journal "Brain, AI and cognition".  He is the author of Anomaly! Collider physics and the quest for new phenomena at Fermilab. Read more