CMS Collaboration physicists used data from high-energy proton-proton collisions from Experiment 2 at CERN’s Large Hadron Collider (LHC) to released The latest research into the production of Higgs boson pairs, known as De-Higgs, has placed constraints on the rate of their formation.
According to physicists, Higgs particle pair can be created in two main ways.
The first is called gluon-gluon fusion, in which gluons (particles inside colliding protons) interact to produce the Higgs boson. This process allows scientists to study the interaction between one so-called intermediate state Higgs boson and two final state Higgs bosons.
The second method involves quarks, also inside the colliding protons, which emit two vector bosons. These vector particles interact to form a Higgs particle, allowing the study of the interaction between two Higgs particles and two vector particles.
CMS physicists performed the latest analysis by exploring multiple ways DeHiggs could collapse.
These final states resulted from the decay of Higgs boson pairs into bottom quarks, W particles, tau leptons, and photons.
By combining these searches and analyzing all the data simultaneously using advanced analytics techniques such as boosted decision trees and deep neural networks, the collaboration was able to extract more information than ever before. .
This study allowed the researchers to set an upper bound on the Higgs pair production rate with a 95% confidence level.
The measured limits are now 3.5 times higher than the Standard Model’s prediction for total DeHiggs production and 79 times higher than the Standard Model’s prediction for DeHiggs production by vector boson fusion.
The LHC’s Run 3 data acquisition era is underway, and the amount of data collected by CMS experiments has already doubled, and CMS researchers are making progress in analyzing it.
One of the most exciting prospects for measuring the self-interactions of the Higgs boson is the upcoming High-Luminosity LHC (HL-LHC), scheduled to become operational in 2030.
In this new phase, the accelerator will provide CMS with the highest luminosity ever reached in a collider.
Considering luminosity predictions and systematic uncertainties, scientists estimate that the first evidence of Higgs formation may begin to appear in about half of the HL-LHC data.
“We look forward to further investigating this rare and exciting phenomenon,” they said.
_____
CMS cooperation. 2024. Combined search for non-resonant Higgs boson pair production in proton-proton collisions at √s=13 TeV. CMS-PAS-HIG-20-011
Source: www.sci.news
