Assertion: photon | /r/HasProperty | massless
Facets:
value: strictly
type: DEGREE
Source sentences:
text: Current commonly accepted physical theories imply or assume the photon to be strictly massless.
text: bosons have mass while photons are massless was a major obstacle in developing electroweak theory.
text: The photon is massless, but the electron and positron are massive.
text: Therefore the photon should still be massless.
text: Basically, photons are neutral because if they were charged as well as being massless, the magnetic field generated by its motion would produce infinite self-inductance.
text: These properties contrast them with photons, which are massless and of infinite range.
text: It is massless, and interacts only with charged particles, though it carries no charge itself.
text: Two of the 16 others, the photon and the gluon, are massless.