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UrduThe trace anomaly is one of the quantities that encodes the energy and momentum of particles built from quarks. Scientists believe the trace anomaly is crucial for keeping quarks bonded in subatomic particles. In this study, scientists calculated the trace anomaly for nucleons and pions. The calculations show that in the pion, the mass distribution is similar to the charge distribution of the neutron and in the nucleon, the mass distribution is similar to the charge distribution of the proton.
Tag: Momentum
New discoveries about the nature of light could improve methods for heating fusion plasma
Scientists have made discoveries about light particles known as photons that could aid the quest for fusion energy.
Experiment unveils Berry curvature mechanism for linear positive magnetoresistance
A research group lead by Prof. LIU Enke from the Institute of Physics of the Chinese Academy of Sciences (CAS) has established a physical model of Berry-curvature-dominated linear positive magnetoresistance (LPMR), providing experimental evidence for this mechanism.