CERN Detects New Particle, the Ξcc+, with Upgraded Large Hadron Collider

This week, CERN announced the detection of a new particle at the Large Hadron Collider (LHC) named the Ξcc+ (Xi-cc-plus). This heavy particle, with a mass four times that of a proton, is predicted to have a shorter lifespan than similar known particles due to its unique quark composition.

First Discovery with LHCb Upgrade

The Ξcc+ is the first new particle revealed by the upgraded LHCb detector, installed at the LHC in 2023. This upgrade significantly enhanced the LHCb experiment’s capabilities. A key improvement was increased luminosity – the number of particles colliding within a given timeframe – leading to more collisions and a greater volume of data for analysis. [Source: SciTechDaily]

All-Software Trigger System

Another significant upgrade involved implementing a world-first, all-software trigger system. Unlike traditional hardware triggers that pre-select events, the LHCb can now sift through data entirely in software, deciding in real-time what data to retain. This allows for the capture of unexpected events and provides scientists with immediate access to data for physics analysis. [Source: ScienceAlert]

Enhanced Vertex Resolution

The new detector also boasts greatly increased “vertex resolution,” enabling it to detect smaller perturbations in the particles it studies. This improved sensitivity allows scientists to discern more subtle interactions, yielding new insights into particle physics. [Source: ScienceDaily]

Understanding the Ξcc+ Particle

Although the Ξcc+ isn’t considered a fundamentally key particle in the universe’s natural physics, it possesses properties that make it valuable to physicists. Specifically, its decay as a two-charm particle can provide clearer data on fundamental quantum processes. [Source: Futurism] The particle is composed of two charm quarks and one down quark, differing from the proton’s composition of two up quarks and one down quark.

Future Upgrades and Continued Research

The LHCb upgrade is one of several ongoing projects at the Large Hadron Collider. The High Luminosity LHC upgrade, aiming to increase the luminosity of the main experiment by a factor of ten, is predicted to be operational by mid-2030, promising an even greater cadence of discoveries. [Source: SciTechDaily]