Mass and Motion

Particle physics and the Standard Model

Everything filed under fields in our physics coverage, the 37 reports filed on it so far.

A 13-ion trapped-ion quantum simulator modeled string breaking, a process analogous to quark dynamics and particle...

Quantum simulator replicates string-breaking

A 13-ion trapped-ion quantum simulator modeled string breaking, a process analogous to quark dynamics and particle formation in the early universe.

2026-09-26
The ATLAS and CMS experiments are preparing new tracking algorithms to handle the high particle density of the HL-LHC...

ATLAS and CMS Develop New Tracking for HL-LHC Challenges

The ATLAS and CMS experiments are preparing new tracking algorithms to handle the high particle density of the HL-LHC, achieving over 85% efficiency...

2026-09-24
A Duke University-led team has used a trapped-ion quantum simulator to observe string-breaking dynamics, a phenomenon...

Trapped-ion quantum simulator observes

A Duke University-led team has used a trapped-ion quantum simulator to observe string-breaking dynamics, a phenomenon analogous to...

2026-09-23
The LHCb experiment at CERN has discovered a new particle in the beauty-strange sector, with a mass significantly lower...

LHCb Discovers Unexpectedly Light Beauty-Strange Particle

The LHCb experiment at CERN has discovered a new particle in the beauty-strange sector, with a mass significantly lower than quark model predictions...

2026-09-23
The CMS collaboration reports a search for new particles decaying into pairs of jets containing bottom quarks, using 13...

CMS Search for New Physics in Four-Jet Events with Bottom

The CMS collaboration reports a search for new particles decaying into pairs of jets containing bottom quarks, using 13 TeV proton-proton collision...

2026-09-21
A single high-energy event at the LUX-ZEPLIN dark matter detector has physicists exploring non-standard particle models...

LUX-ZEPLIN detector records potential dark

A single high-energy event at the LUX-ZEPLIN dark matter detector has physicists exploring non-standard particle models, including higgsinos and

2026-09-19
A compact, $100 detector called CosmicWatch, developed at the University of Delaware, allows students and researchers to...

CosmicWatch: A $100 Muon Detector Opens Particle Physics

A compact, $100 detector called CosmicWatch, developed at the University of Delaware, allows students and researchers to detect invisible cosmic...

2026-09-18
A new self-supervised learning method improves the reconstruction of heavy resonance masses in particle physics...

Self-Supervised Learning Sharpens Resonance Mass

A new self-supervised learning method improves the reconstruction of heavy resonance masses in particle physics experiments, showing sharper peaks and

2026-09-17
Researchers have used a 104-qubit quantum processor to simulate the inelastic production of a heavier particle from a...

Quantum computer simulates particle creation in 1D Ising

Researchers have used a 104-qubit quantum processor to simulate the inelastic production of a heavier particle from a collision of two light...

2026-09-12
A 300 TeV photon from a distant gamma-ray burst survived a 2-billion-light-year journey that should have destroyed it...

Ultra-High-Energy Photon Defies Physics to Reach Earth

A 300 TeV photon from a distant gamma-ray burst survived a 2-billion-light-year journey that should have destroyed it, challenging Einstein's...

2026-09-10
A Nature Physics perspective argues that reproducibility challenges in moiré material experiments must be addressed from...

Building Reproducibility into Moiré Material Research

A Nature Physics perspective argues that reproducibility challenges in moiré material experiments must be addressed from the outset in material...

2026-09-10
A particle physicist is developing quantum algorithms to search for anomalies in data from the upgraded Large Hadron...

Quantum computers could hunt dark matter at LHC

A particle physicist is developing quantum algorithms to search for anomalies in data from the upgraded Large Hadron Collider, aiming to find signs...

2026-09-09
Researchers applied an unsupervised neural spline flow model to CMS Open Data, identifying dijet events with low...

CMS Uses Neural Flow to Spot Anomalous Dijet Events

Researchers applied an unsupervised neural spline flow model to CMS Open Data, identifying dijet events with low likelihood scores that deviate from

2026-09-09
A microscopic transport model study shows a significant fraction of protons stopped at mid-rapidity in low-energy...

UrQMD Model Reveals Neutron Origin of Stopped Protons

A microscopic transport model study shows a significant fraction of protons stopped at mid-rapidity in low-energy heavy-ion collisions originate from

2026-09-09
A physics experiment using solid-state nuclear magnetic resonance and a SQUID magnetometer has searched for ultralight...

New Experiment Sets Limits on Axion-like Dark Matter

A physics experiment using solid-state nuclear magnetic resonance and a SQUID magnetometer has searched for ultralight axion-like dark matter...

2026-09-09
A new study proposes using the Belle II experiment to search for long-lived heavy neutral leptons, predicted by...

Belle II could probe new physics via

A new study proposes using the Belle II experiment to search for long-lived heavy neutral leptons, predicted by extensions of the Standard Model, by

2026-09-07
The LUX-ZEPLIN experiment has detected a rare particle interaction that looks unusually difficult to explain as ordinary...

LUX-ZEPLIN dark matter detector reports

The LUX-ZEPLIN experiment has detected a rare particle interaction that looks unusually difficult to explain as ordinary background noise and appeared

2026-09-05
An international team shows artificial intelligence can design physics experiments using existing lab components that...

AI proposes physics experiments that beat

An international team shows artificial intelligence can design physics experiments using existing lab components that yield more precise results than

2026-09-04
Physicists report the first measurement of near-threshold J/ψ particle production from a neutron target, enabling a...

First Measurement of J/ψ Photoproduction on Neutron

Physicists report the first measurement of near-threshold J/ψ particle production from a neutron target, enabling a direct comparison with bound...

2026-09-04
Science: Yale physicist Sarah Demers discusses the U.S

Physicist Sarah Demers on AI's Role in Particle Physics

Yale physicist Sarah Demers discusses the U.S. Department of Energy's use of AI to optimize the Mu2e experiment, while cautioning about intellectual

2026-09-03
The GlueX Collaboration at Jefferson Lab has discovered evidence for two new structures, Y(2240) and X(1830), while...

GlueX Experiment Finds Two New XYZ Particle Candidates

The GlueX Collaboration at Jefferson Lab has discovered evidence for two new structures, Y(2240) and X(1830), while searching for the exotic particle

2026-09-03
A new analysis in Nature Physics identifies synthesis dependence as a major obstacle in quantum materials research, where...

Quantum Materials Stalled by Synthesis

A new analysis in Nature Physics identifies synthesis dependence as a major obstacle in quantum materials research, where uncontrolled sample...

2026-09-01
The LUX-ZEPLIN (LZ) dark matter experiment has identified a single anomalous particle interaction in its latest data analysis

LZ experiment hints at dark matter

The LUX-ZEPLIN (LZ) dark matter experiment has identified a single anomalous particle interaction in its latest data analysis.

2026-09-01
A review paper outlines the stringent requirements for next-generation particle tracking and vertexing detectors at...

Tracking detectors face future collider

A review paper outlines the stringent requirements for next-generation particle tracking and vertexing detectors at future electron, muon, and hadron

2026-08-31