Based on new data, the Large Hadron Collider experiment published updated results. The expectations were very close to reality, according to analyses. These types of irregular movements are due to random fluctuations of data. These irregularities are indicative that there is more to be done once the new stream has been created. Here are some examples of the recent compact-muon solenoid collaboration.
Compact Muon Solenoid (CMS) reported a stunning collision with four-particle aircraft at the end of 2017. Each jet had an invariant mass of 8 TeV. It was possible to split the jets into two groups with a mass of 1.9 TeV. By colliding with proton beams, a new particle could be created with a mass of 8 TeV. This new particle would then decompose into a pair of 1.9 TeV masses. Compact Muon Solenoid (CMS) has published a revised analysis. It seeks twin pairs with identical mass invariant masses. This analysis is based on data from LHC Run 2. Surprisingly another event with striking properties was also found, with 4-jet masses of 8.6 TeV and 2.15 TeV. Below is a plot of these events. It plots 4-jet events as a function of 2-jet and 4-jet mass.
While strong interactions between colliding photons most likely cause two-pair events, it’s rare to observe events that have high invariant masses. This means that 1 in 20 000 people will see these events without any new phenomena. This corresponds with a local significance of 3.9s. Although it may seem intense, this signal is essential to be considered global. It is indicative of the possibility of seeing excesses in any given region. The events have a global significance of 1.6
Two other searches found new heavy particles. They found small excesses in the data. High mass resonances refer to those that decay into W bosons which then decay into Leptons. A signal hypothesis that weighs 650 GeV is considered the highest deviation. It has a global significance and local significance of 2.5s. When looking for heavy particles which decay into a pair WW or WZ of bosons, the data diverge in two areas. These bosons decay into pairs or jets. The signal hypothesis could be either a 2.1- or 2.9% TeV W’ boson, which then decays into a pair of WZ couples. The local significance is highest at 3.6s and the global significance is at 2.3%.
Another result was obtained by searching for Higgs boson particles converting into tau pairs. Data shows that there is a slight excess for a new particle of 100 GeV Mass. It has a global significance of 3.1s to 2.7s. This excess coincides with the one Compact Muon Solenoid (CMS) saw in a prior search to find low-mass resonances for the two-photon final state. It is pretty interesting. Another example is high-mass. This excess has the largest deviation from the expectation of a mass of 1.25 TeV, and a global (locally) significance of 2.28s.
The final state of the tau pair was used to search for new particles called leptoquarks. This is important because the LHCb experiment revealed flavor anomalies. This would allow us to see the anomalies from a new perspective if indeed they are the manifestations of new phenomena. Compact Muon Solenoid (CMS) has not been found excessive, but analysis of leptoquark parameters is just beginning to reveal the possible explanations for flavor anomalies. Further data are needed to confirm the leptoquark hypothesis.
LHC will be starting a new data-taking period in July with a higher energy level and upgraded detectors. This new stream of data will support searches for new phenomena