000425672 001__ 425672 000425672 005__ 20240918104042.0 000425672 037__ $$aPUBDB-2019-03349 000425672 041__ $$aEnglish 000425672 0881_ $$aDESY-18-171 000425672 088__ $$2DESY$$aDESY-18-171 000425672 1001_ $$0P:(DE-H253)PIP1004537$$aGharibyan, Vahagn$$b0$$eCorresponding author 000425672 245__ $$aEvidence for Parity Violation in Gravitational Fields 000425672 260__ $$c2018 000425672 3367_ $$0PUB:(DE-HGF)25$$2PUB:(DE-HGF)$$aPreprint$$bpreprint$$mpreprint$$s1574256534_7685 000425672 3367_ $$2ORCID$$aWORKING_PAPER 000425672 3367_ $$028$$2EndNote$$aElectronic Article 000425672 3367_ $$2DRIVER$$apreprint 000425672 3367_ $$0PUB:(DE-HGF)29$$2PUB:(DE-HGF)$$aReport$$mreport 000425672 3367_ $$2BibTeX$$aARTICLE 000425672 3367_ $$2DataCite$$aOutput Types/Working Paper 000425672 520__ $$aDiscrete symmetries in gravity have only been tested for low energy, non-relativistic matter, confirm-ing the perfectly symmetric general relativity. A hint for high energy CP violation in gravitational fields has recently been found in the HERA Compton polarimeter’s two spectra, measured with electron and positron beams. Here we report results of the analysis of the same polarimeter’s spectra, acquired during 2004–2007 and tagged by laser polarization states allowing the separation of charge (C) and space (P) parity contributions. The measured Compton edge energy asymmetry, induced by the laser helicity flips, is as high as (4.9±0.5)·10$^{−5}$ which corresponds to a helicity-dependent difference in the gravitational potentials of (1.7±0.2)·10$^{−14}$. In the case of the observed anomalous coupling’s energy independence, the spin asymmetric gravity will con-tribute to the galactic rotational curves and the cosmic microwave background. Further analysis and calculations can determine whether the observed magnitude of the gravitational parity violation is sufficient for detaching these famous phenomena from the dark matter and the Big Bang theory. 000425672 536__ $$0G:(DE-HGF)POF3-631$$a631 - Accelerator R & D (POF3-631)$$cPOF3-631$$fPOF III$$x0 000425672 693__ $$0EXP:(DE-588)4443767-5$$1EXP:(DE-588)4159571-3$$5EXP:(DE-588)4443767-5$$aHERA$$eHERA: H1$$x0 000425672 7001_ $$0P:(DE-HGF)0$$aAdler, V.$$b1 000425672 7001_ $$0P:(DE-HGF)0$$aAllfrey, P. D.$$b2 000425672 7001_ $$0P:(DE-HGF)0$$aBell, M. A.$$b3 000425672 7001_ $$0P:(DE-H253)PIP1033168$$aBelusic, Bastian Daniel$$b4$$udesy 000425672 7001_ $$0P:(DE-H253)PIP1003014$$aBlock, Andreas$$b5$$udesy 000425672 7001_ $$0P:(DE-H253)PIP1000493$$aBozhko, Yury$$b6$$udesy 000425672 7001_ $$0P:(DE-HGF)0$$aCoughlan, J. A.$$b7 000425672 7001_ $$0P:(DE-HGF)0$$aDementiev, R. 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