Computing the hadronic vacuum polarization function by analytic continuation
Journal Article
·
· Physical Review. D, Particles, Fields, Gravitation and Cosmology
- High Energy Accelerator Research Organization (KEK), Tsukuba (Japan)
- High Energy Accelerator Research Organization (KEK), Tsukuba (Japan); The Graduate Univ. for Advanced Studies (Sokendai), Tsukuba (Japan)
- Humboldt Univ. zu Berlin, Berlin (Germany)
- Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany); Univ. of Cyprus, Nicosia (Cyprus)
- The Cyprus Institute, Nicosia (Cyprus)
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
We propose a method to compute the hadronic vacuum polarization function on the lattice at continuous values of photon momenta bridging between the spacelike and timelike regions. We provide two independent demonstrations to show that this method leads to the desired hadronic vacuum polarization function in Minkowski spacetime. We present with the example of the leading-order QCD correction to the muon anomalous magnetic moment that this approach can provide a valuable alternative method for calculations of physical quantities where the hadronic vacuum polarization function enters.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- AC05-06OR23177
- OSTI ID:
- 1091780
- Report Number(s):
- KEK-CP-286; DESY-13-085; JLAB-THY-13-1736; SFB/CPP-13-30; HU-EP-13/24; DOE/OR/23177-2562; arXiv:1305.5878; PRVDAQ; TRN: US1600823
- Journal Information:
- Physical Review. D, Particles, Fields, Gravitation and Cosmology, Vol. 88, Issue 3; ISSN 1550-7998
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 36 works
Citation information provided by
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Web of Science
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