TY  - EJOUR
AU  - Gharibyan, Vahagn
AU  - Balewski, Klaus
TI  - Planck-scale Gravity test at PETRA - Letter of Intent
IS  - arXiv:1602.06251
M1  - PUBDB-2016-03273
M1  - arXiv:1602.06251
M1  - DESY-16-029
PY  - 2016
AB  - Quantum or torsion gravity models predict unusual properties of space-time at very short distances. In particular, near the Planck length, around 10<sup>−35</sup>m, empty space may behave as a crystal, singly or doubly refractive. This hypothesis, however, remains uncheckable for any direct measurement since the smallest distance accessible in experiment is about 10<sup>−19</sup>m at the LHC. Here we propose a laboratory test to measure space birefringence or refractivity induced by gravity. A sensitivity 10<sup>−31</sup>m for doubly and 10<sup>−28</sup>m for singly refractive vacuum could be reached with PETRA 6 GeV beam exploring UV laser Compton scattering.
KW  - DESY PETRA Stor (autogen)
KW  - gravitation (autogen)
KW  - torsion (autogen)
LB  - PUB:(DE-HGF)25 ; PUB:(DE-HGF)29
UR  - https://bib-pubdb1.desy.de/record/307562
ER  -