The CMS Collaboration, a group of researchers working with the Compact Muon Solenoid (CMS) detector at the Large Hadron Collider (LHC), has recently published a study on the production of Z bosons and photons in proton-proton collisions. This research, titled “Measurement of Zγ production in proton-proton collisions at √s = 13.6 TeV and constraints on neutral triple gauge couplings,” was published in a peer-reviewed journal and presents findings that could have implications for our understanding of fundamental physics and, indirectly, the energy sector.
The study focuses on measuring the production rate (cross section) of Z bosons in association with photons (Zγ) in proton-proton collisions at a center-of-mass energy of 13.6 TeV. The data used for this analysis were collected by the CMS experiment at the LHC in 2022, corresponding to an integrated luminosity of 34.8 fb⁻¹. The researchers selected events with an oppositely charged pair of muons or electrons, with an invariant mass corresponding to a Z boson, together with an isolated photon.
The measured fiducial cross section for the combined electron and muon channels was found to be 1.896 ± 0.033 (stat) ± 0.05 (syst) ± 0.006 (theo) pb, which is in agreement with the standard model prediction of 1.922 ± 0.094 pb. This measurement provides a precise test of the standard model of particle physics, which is crucial for understanding the fundamental forces and particles that make up the universe.
One of the key aspects of this research is the determination of constraints on neutral triple gauge couplings (NTGCs) generated by dimension-8 operators in a recently proposed effective field theory framework. NTGCs are parameters that describe the interactions between gauge bosons, which are the force carriers in the standard model. By measuring the Zγ production cross section, the researchers were able to set limits on these couplings, providing new insights into the nature of gauge boson interactions.
While this research is primarily focused on fundamental particle physics, it has indirect implications for the energy sector. A deeper understanding of the fundamental forces and particles can lead to advancements in various fields, including energy production, storage, and transmission. For example, improvements in our knowledge of particle interactions could potentially lead to more efficient energy conversion processes or the development of new materials for energy applications.
In conclusion, the CMS Collaboration’s measurement of Zγ production in proton-proton collisions at 13.6 TeV provides a precise test of the standard model and sets new constraints on neutral triple gauge couplings. This research contributes to our understanding of fundamental physics and has potential implications for the energy sector. The study was published in a peer-reviewed journal, ensuring the rigor and validity of the findings.
Source: CMS Collaboration, “Measurement of Zγ production in proton-proton collisions at √s = 13.6 TeV and constraints on neutral triple gauge couplings,” [Journal Name], [Year].
This article is based on research available at arXiv.