Prof. Lionel J Mason

BA, DPhil

Status

Academic Faculty

Professor of Mathematics Tutorial Fellow St Peter's College.

+44 1865 615328

Contact form

http://people.maths.ox.ac.uk/lmason/

ORCID iD

https://orcid.org/0000-0003-2464-6730

Research groups

Address

Mathematical Institute
University of Oxford
Andrew Wiles Building
Radcliffe Observatory Quarter
Woodstock Road
Oxford
OX2 6GG

Highlighted publications

Scattering on plane waves and the double copy

Adamo, T Casali, E Mason, L Nekovar, S Classical and Quantum Gravity volume 35 issue 1 (05 Dec 2017)

One-loop amplitudes on the Riemann sphere

Geyer, Y Mason, L Monteiro, R Tourkine, P JOURNAL OF HIGH ENERGY PHYSICS issue 3 (16 Mar 2016) http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000375313500006&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=4fd6f7d59a501f9b8bac2be37914c43e

Two-loop scattering amplitudes from the Riemann sphere

Geyer, Y Mason, L Monteiro, R Tourkine, P Physical Review D volume 94 issue 12 (01 Jan 2016)

Loop Integrands for Scattering Amplitudes from the Riemann Sphere.

Geyer, Y Mason, L Monteiro, R Tourkine, P Physical review letters volume 115 issue 12 121603- (16 Sep 2015)

Ambitwistor strings at null infinity and (subleading) soft limits

Geyer, Y Lipstein, A Mason, L CLASSICAL AND QUANTUM GRAVITY volume 32 issue 5 (2015) https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000350637200003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=4fd6f7d59a501f9b8bac2be37914c43e

New ambitwistor string theories

Casali, E Geyer, Y Mason, L Monteiro, R Roehrig, K JOURNAL OF HIGH ENERGY PHYSICS issue 11 (2015) https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000364567100002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=4fd6f7d59a501f9b8bac2be37914c43e

Ambitwistor strings in four dimensions.

Geyer, Y Lipstein, A Mason, L Physical review letters volume 113 issue 8 081602- (19 Aug 2014)

Ambitwistor strings and the scattering equations

Mason, L Skinner, D (11 Nov 2013) http://arxiv.org/abs/1311.2564v1

Scattering amplitudes and Wilson loops in twistor space

Adamo, T Bullimore, M Mason, L Skinner, D JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL volume 44 issue 45 (2011) https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000296773300009&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=4fd6f7d59a501f9b8bac2be37914c43e

The Complete Planar S-matrix of N=4 SYM as a Wilson Loop in Twistor
Space

Mason, L Skinner, D JHEP volume 1012 018- (12 Sep 2010) http://arxiv.org/abs/1009.2225v3

Prizes, awards, and scholarships

Leverhulme Senior Research Fellow 2005-6, Leverhulme Research Fellow 2011-13

Recent publications

Scattering on self-dual Taub-NUT

Adamo, T Bogna, G Mason, L Sharma, A (07 Sep 2023) http://arxiv.org/abs/2309.03834v1

Yang-Mills form factors on self-dual backgrounds

Bogna, G Mason, L Journal of High Energy Physics volume 2023 issue 8 (01 Aug 2023)

Amplitudes at strong coupling as hyperkähler scalars

Frost, H Gürdogan, Ö Mason, L (29 Jun 2023) http://arxiv.org/abs/2306.17044v1

Yang-Mills form factors on self-dual backgrounds

Bogna, G Mason, L (12 May 2023)

Graviton scattering in self-dual radiative space-times

Adamo, T Mason, L Sharma, A CLASSICAL AND QUANTUM GRAVITY volume 40 issue 9 095002-095002 (30 Mar 2023)

Research interests

My research interests lies in mathematical physics, focussing mostly on general relativity and quantum theory.

Much of my research is centred around twistor theory, a programme originally introduced by Roger Penrose as an approach to the unification of quantum theory and general relativity. Twistor theory now has strong links to string theory and finds wide application to problems in mathematical physics, geometry, nonlinear differential equations, particularly integrable systems. Much of my current work is on ideas arising from Witten's twistor-string theory and applications of twistor theory to scattering amplitudes. Further details of my research interests can be obtained from my publication list (see below for recent articles).