New interstellar comet will keep a safe distance from Earth, NASA says
NASA has discovered an interstellar comet that's wandered into our backyard.
Planetary Sciences
Jul 3, 2025
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Page 2: Research news on Collision physics
Collision physics is a research area within atomic, molecular, and optical physics that investigates the fundamental processes occurring when particles such as atoms, ions, electrons, or molecules interact and scatter. It focuses on quantifying cross sections, differential scattering distributions, energy and momentum transfer, charge exchange, ionization, excitation, and recombination in two-body and few-body collisions over a wide range of energies. The field employs quantum scattering theory, semiclassical approaches, and sophisticated numerical methods, and relies on accelerator-based, crossed-beam, and trap-based experiments to test interaction potentials, probe short-range forces, and benchmark many-body and plasma models relevant to astrophysics, fusion, radiation physics, and materials modification.
First-ever collisions of oxygen at the Large Hadron Collider
The Large Hadron Collider (LHC) gets a breath of fresh air as it collides beams of protons and oxygen ions for the very first time. Oxygen–oxygen and neon–neon collisions are also on the menu of the next few days.
General Physics
Jul 1, 2025
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96
With potential implications for mechanical systems, study reveals physics of the 'nick shot' in squash
In squash, the "nick shot" is an emphatic, point-ending play in which a player strikes a ball that ricochets near the bottom of the wall and rolls flat along the floor instead of bouncing, leaving an opponent with no chance ...
General Physics
Jun 12, 2025
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A single impact could leave a giant planet ringing for millions of years
To understand how chaotic the early solar system was, we need only gaze at the moon. Its cratered surface bears the scars of multitudes of collisions. The early solar system was like a debris field where objects smashed into ...
Planetary Sciences
May 8, 2025
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Video game-inspired algorithm rapidly detects high-energy particle collisions for future fusion reactors
An innovative algorithm for detecting collisions of high-speed particles within nuclear fusion reactors has been developed, inspired by technologies used to determine whether bullets hit targets in video games. This advancement ...
Plasma Physics
Apr 23, 2025
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123
Symmetry between up and down quarks is more broken than expected
In late 2023, Wojciech Brylinski was analyzing data from the NA61/SHINE collaboration at CERN for his thesis when he noticed an unexpected anomaly—a strikingly large imbalance between charged and neutral kaons in argon–scandium ...
General Physics
Mar 28, 2025
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112
Quantum control of collisions possible beyond ultralow temperatures, study shows
At ultracold temperatures, interatomic collisions are relatively simple, and their outcome can be controlled using a magnetic field. However, research by scientists led by Prof. Michal Tomza from the Faculty of Physics of ...
General Physics
Mar 10, 2025
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69
Asteroid deflection strategies: Researchers unveil new scenarios
How prepared are we to deflect an asteroid heading towards Earth? This question is answered by two studies just published in Nature Communications, the result of a collaboration between Politecnico di Milano, Georgia Institute ...
Planetary Sciences
Feb 20, 2025
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79
Quantum computers successfully model particle scattering
Scattering takes place across the universe at large and miniscule scales. Billiard balls clank off each other in bars, the nuclei of atoms collide to power the stars and create heavy elements, and even sound waves deviate ...
Quantum Physics
Feb 11, 2025
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104
Quantum simulators: When nature reveals its natural laws
Quantum physics is a very diverse field: it describes particle collisions shortly after the Big Bang as well as electrons in solid materials or atoms far out in space. But not all quantum objects are equally easy to study. ...
Quantum Physics
Jan 7, 2025
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