BibTex format
@article{Watt:2025:10.1016/j.physletb.2025.139247,
author = {Watt, R and Kettle, B and Gerstmayr, E and King, B and Alejo, A and Astbury, S and Baird, C and Bohlen, S and Campbell, M and Colgan, C and Dannheim, D and Gregory, C and Harsh, H and Hatfield, P and Hinojosa, J and Hollatz, D and Katzir, Y and Morton, J and Murphy, CD and Nurnberg, A and Osterhoff, J and Pérez-Callejo, G and Põder, K and Rajeev, PP and Roedel, C and Roeder, F and Salgado, FC and Samarin, GM and Sarri, G and Seidel, A and Spindloe, C and Steinke, S and Streeter, MJV and Thomas, AGR and Underwood, C and Wu, W and Zepf, M and Rose, SJ and Mangles, SPD},
doi = {10.1016/j.physletb.2025.139247},
journal = {Physics Letters B: Nuclear Physics and Particle Physics},
title = {Bounding elastic photon-photon scattering at s≈1 MeV using a laser-plasma platform},
url = {http://dx.doi.org/10.1016/j.physletb.2025.139247},
volume = {861},
year = {2025}
}
RIS format (EndNote, RefMan)
TY - JOUR
AB - We report on a direct search for elastic photon-photon scattering using x-ray and photons from a laser-plasmabased experiment. A photon beam produced by a laser wakeeld accelerator provided a broadband spectrumextending to above = 200 MeV. These were collided with a dense x-ray eld produced by the emission froma laser heated germanium foil at ≈ 1.4 keV, corresponding to an invariant mass of √ = 1.22 ± 0.22 MeV. Inthese asymmetric collisions elastic scattering removes one x-ray and one high-energy photon and outputs twolower energy photons. No changes in the photon spectrum were observed as a result of the collisions allowingus to place a 95% upper bound on the cross section of 1.5 × 1015 μb. Although far from the QED prediction, thisrepresents the lowest upper limit obtained so far for √ 1 MeV.
AU - Watt,R
AU - Kettle,B
AU - Gerstmayr,E
AU - King,B
AU - Alejo,A
AU - Astbury,S
AU - Baird,C
AU - Bohlen,S
AU - Campbell,M
AU - Colgan,C
AU - Dannheim,D
AU - Gregory,C
AU - Harsh,H
AU - Hatfield,P
AU - Hinojosa,J
AU - Hollatz,D
AU - Katzir,Y
AU - Morton,J
AU - Murphy,CD
AU - Nurnberg,A
AU - Osterhoff,J
AU - Pérez-Callejo,G
AU - Põder,K
AU - Rajeev,PP
AU - Roedel,C
AU - Roeder,F
AU - Salgado,FC
AU - Samarin,GM
AU - Sarri,G
AU - Seidel,A
AU - Spindloe,C
AU - Steinke,S
AU - Streeter,MJV
AU - Thomas,AGR
AU - Underwood,C
AU - Wu,W
AU - Zepf,M
AU - Rose,SJ
AU - Mangles,SPD
DO - 10.1016/j.physletb.2025.139247
PY - 2025///
SN - 0370-2693
TI - Bounding elastic photon-photon scattering at s≈1 MeV using a laser-plasma platform
T2 - Physics Letters B: Nuclear Physics and Particle Physics
UR - http://dx.doi.org/10.1016/j.physletb.2025.139247
UR - https://doi.org/10.1016/j.physletb.2025.139247
VL - 861
ER -