G. Adkins, B. Akers, Faisal Alam, Lam M. Tran, Xuan Zhang
{"title":"Calculation of higher order corrections to positronium energy levels","authors":"G. Adkins, B. Akers, Faisal Alam, Lam M. Tran, Xuan Zhang","doi":"10.22323/1.353.0004","DOIUrl":null,"url":null,"abstract":"We report on progress in the calculation of corrections to positronium energy levels of order m α 7 . Corrections at this level will be needed for the interpretation of the results of upcoming measurements. A procedure for the calculation of high order corrections has been developed based on the Bethe-Salpeter equation of dimensionally regularized NRQED and the method of regions. We demonstrate the effectiveness of this approach by using it to obtain all pure recoil corrections to positronium energies at O ( m α 6 ) in a unified manner.","PeriodicalId":416768,"journal":{"name":"Proceedings of International Conference on Precision Physics and Fundamental Physical Constants — PoS(FFK2019)","volume":"45 4","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2019-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of International Conference on Precision Physics and Fundamental Physical Constants — PoS(FFK2019)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.22323/1.353.0004","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 4
Abstract
We report on progress in the calculation of corrections to positronium energy levels of order m α 7 . Corrections at this level will be needed for the interpretation of the results of upcoming measurements. A procedure for the calculation of high order corrections has been developed based on the Bethe-Salpeter equation of dimensionally regularized NRQED and the method of regions. We demonstrate the effectiveness of this approach by using it to obtain all pure recoil corrections to positronium energies at O ( m α 6 ) in a unified manner.