SCOAP3 Repository 4 records found  Search took 0.02 seconds. 
1. Ultraviolet properties of N=8 supergravity at five loops / Bern, Zvi ; Carrasco, John Joseph ; Chen, Wei-Ming ; Edison, Alex ; et al
We use the recently developed generalized double-copy construction to obtain an improved representation of the five-loop four-point integrand of N=8 supergravity whose leading ultraviolet behavior we analyze using state-of-the-art loop-integral expansion and reduction methods. [...]
Published in Physical Review D 98 (2018) 10.1103/PhysRevD.98.086021 arXiv:1804.09311
Fulltext: Download fulltextPDF Download fulltextXML;
2. Bootstrapping two-loop Feynman integrals for planar N = 4 $$ \mathcal{N}=4 $$ sYM / Henn, Johannes ; Herrmann, Enrico ; Parra-Martinez, Julio
We derive analytic results for the symbol of certain two-loop Feynman integrals relevant for seven- and eight-point two-loop scattering amplitudes in planar N = 4 $$ \mathcal{N}=4 $$ super-Yang-Mills theory. [...]
Published in JHEP 1810 (2018) 059 10.1007/JHEP10(2018)059 arXiv:1806.06072
Fulltext: Download fulltextXML Download fulltextPDF (PDFA);
3. Canceling the U(1) Anomaly in the S Matrix of N=4 Supergravity / Bern, Zvi ; Parra-Martinez, Julio ; Roiban, Radu
N=4 supergravity is understood to contain a U(1) anomaly which manifests itself via the nonvanishing of loop-level scattering amplitudes that violate a tree-level charge conservation rule. [...]
Published in Physical Review Letters 121 (2018) 10.1103/PhysRevLett.121.101604 arXiv:1712.03928
Fulltext: Download fulltextXML Download fulltextPDF;
4. Manifesting enhanced cancellations in supergravity: integrands versus integrals / Bern, Zvi ; Enciso, Michael ; Parra-Martinez, Julio ; Zeng, Mao
Examples of ‘enhanced ultraviolet cancellations’ with no known standard-symmetry explanation have been found in a variety of supergravity theories. [...]
Published in JHEP 1705 (2017) 137 10.1007/JHEP05(2017)137 arXiv:1703.08927
Fulltext: Download fulltextXML Download fulltextPDF (PDFA);

Interested in being notified about new results for this query?
Subscribe to the RSS feed.