Studying Quarkonia Production in Ultra-Peripheral Collisions

Thursday 23 January 2025


Physicists have long sought to understand the fundamental forces that govern the behavior of subatomic particles, and one way they do this is by studying the production of quarkonia, which are bound states of heavy quarks. Quarkonia can be created in high-energy collisions between particles, such as protons or lead ions, but this process is complicated by the presence of other particles that can interact with the quarkonia and distort our understanding of their behavior.


A team of researchers has now proposed a new way to study quarkonia production using ultra-peripheral collisions at the Large Hadron Collider (LHC), where two high-energy particles collide at very small angles, producing a large amount of energy in a tiny region. This approach allows physicists to isolate the quarkonia from other particles and study their properties more precisely.


The researchers used computer simulations to model the production of J/ψ mesons, which are a type of quarkonium, in ultra-peripheral collisions between protons and lead ions at the LHC. They found that by selecting events with specific characteristics, such as a certain level of particle activity in the detector, they could isolate the J/ψ mesons from other particles and study their properties more precisely.


The results of this study are important because they demonstrate that ultra-peripheral collisions can be used to study quarkonia production in a way that is not possible with traditional hadron-hadron collisions. This approach has the potential to provide new insights into the fundamental forces that govern the behavior of subatomic particles and could help physicists better understand the properties of quarkonia.


The researchers also explored the prospects for future studies using ultra-peripheral collisions at the LHC, including the possibility of measuring the production of heavier quarkonia, such as Upsilon mesons. They found that these studies would require larger datasets and more advanced detectors than are currently available, but they could potentially provide new insights into the properties of quarkonia and the fundamental forces that govern their behavior.


Overall, this study demonstrates the potential of ultra-peripheral collisions at the LHC to provide new insights into the properties of quarkonia and the fundamental forces that govern their behavior.


Cite this article: “Studying Quarkonia Production in Ultra-Peripheral Collisions”, The Science Archive, 2025.


Quarkonia, Ultra-Peripheral Collisions, Large Hadron Collider, J/Ψ Mesons, Particle Physics, Subatomic Particles, Fundamental Forces, Quantum Chromodynamics, Nuclear Physics, Heavy Quarks


Reference: Kate Lynch, “Inclusive photoproduction of vector quarkonium in ultra-peripheral collisions at the LHC” (2025).


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