Good question George, You said " particles of light " so you are talking about Photons. I always thought that Photons are exceptions to the rule ( more Velocity = more Mass ) meaning as you know, the faster something goes the more mass it gains.
The photon is the gauge boson or electromagnetism (1.) and therefore all other quantum numbers of the photon (such as lepton number: baryon number, and flavour quantum numbers) are zero. (2.)
(1.) Role as gauge boson and polarization section 5.1 inAitchison, I.J.R.; Hey, A.J.G. (1993). Gauge Theories in Particle Physics. IOP Publishin: ISBN 0-85274-328-9
(2.) See p.31 inAmsler, C.; et al. (2008). "Review of Particle Physics". Physics Letters B 667: 11340. Bibcode: 2008PhLB..667....1P doi:10.1016/j.physletb.2008.07.018
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The energy and momentum of a photon depend only on its frequency (ν) or inversely, its wavelength (λ):
where k is the wave vector (where the wave number k = |k| = 2π/λ), ω = 2πν is the angular frequency, and ħ = h/2π is the reduced Planck constant. (3.)
(3.) Davison E. Soper, Electromagnetic radiation is made of photons, Institute of Theoretical Science, University of Oregon
Since p points in the direction of the photon's propagation, the magnitude of the momentum is
Also as a gauge field, i.e., as a field that results from requiring that a gauge symmetry holds independently at every position in space time. (4.)
( 4.) Ryder, L.H. (1996). Quantum field theory (2nd ed.). Cambridge University Press. ISBN 0-521-47814-6.
For the electromagnetic field, this gauge symmetry is the Abelian U (1) symmetry of a complex number, which reflects the ability to vary the phase of a complex number without affecting observable or real valued functions made from it, such as the energy or the Lagrangian.
The quanta of an Abelian gauge field must be massless, uncharged bosons, as long as the symmetry is not broken; hence, the photon is predicted to be mass less, and to have zero electric charge.
I guess this is my round a bout way of saying, I am not sure but my guess would be no, I think the there would be no change in energy, but their would be a change in Velocity. So that means I have no idea, LOL. I would like to know one way or another, again good question.