During the week of 22-26 September, the CMS Standard Model (SMP) gathered for a dedicated workshop to review recent results, ongoing analyses with Run-3 data, and the future directions of SM precision measurements. As MIT’s PPC plays a central role in CMS precision physics, notably with the recent W-boson mass measurement, our group contributed on several key fronts throughout the week.
PhD student Luca Lavezzo presented the first insights into a new determination of the strong coupling constant, employing state-of-the-art analysis tools originally developed for the W-mass measurement. His work contributes to improving the precision of the strong coupling constant determinations from LHC data.
David Walter showcased recent advances in unfolding techniques used to extract differential cross sections. His presentation featured RABBIT, an in-house developed maximum-likelihood unfolding framework that leverages modern fast minimizers, perfectly suited for large datasets and multidimensional analyses characteristic of Run-3.
Jan Eysermans discussed how a dedicated low-pileup dataset can be exploited for an independent W-boson mass measurement, providing a clean and complementary approach that will serve as a foundation for even more precise future determinations of the W-boson mass.
Beyond these highlights, the workshop covered a wide range of exciting Standard Model topics, highlighting the diversity and strength of the CMS SM program from electroweak precision tests to QCD dynamics and new analysis techniques that will shape the upcoming years of Run-3 and beyond.