Prof. Lionel J Mason

BA, DPhil

Status

Academic Faculty

Professor of Mathematics Tutorial Fellow St Peter's College.

Contact form

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

+44 1865 615328

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)

New ambitwistor string theories

Casali, E Geyer, Y Mason, L Monteiro, R Roehrig, K JOURNAL OF HIGH ENERGY PHYSICS issue 11 (05 Nov 2015) http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000364567100002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=4fd6f7d59a501f9b8bac2be37914c43e

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 (05 Mar 2015) http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000350637200003&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 (11 Nov 2011) http://gateway.webofknowledge.com/gateway/Gateway.cgi?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

Massive ambitwistor-strings; twistorial models

Albonico, G Geyer, Y Mason, L (26 Jan 2023) http://arxiv.org/abs/2301.11227v1

Gravity from holomorphic discs and celestial $Lw_{1+\infty}$ symmetries

Mason, L (21 Dec 2022) http://arxiv.org/abs/2212.10895v1

The SAGEX review on scattering amplitudes*

Brandhuber, A Dorey, P McLoughlin, T Abreu, S Bern, Z Bjerrum-Bohr, N Blümlein, J Britto, R Carrasco, J Chicherin, D Chiodaroli, M Damgaard, P Del Duca, V Herrmann, E Heslop, P Johansson, H Korchemsky, G O’Connell, D Papathanasiou, G Planté, L Plefka, J Puhm, A Vanhove, P Wen, C White, C Journal of Physics A: Mathematical and Theoretical volume 55 issue 44 443001-443001 (30 Nov 2022)

Chapter 6: Ambitwistor Strings and Amplitudes from the Worldsheet

Geyer, Y Mason, L Journal of Physics A: Mathematical and Theoretical volume 55 issue 44 443007-443007 (30 Nov 2022)

From Twistor-Particle Models to Massive Amplitudes

Albonico, G Geyer, Y Mason, L SYMMETRY INTEGRABILITY AND GEOMETRY-METHODS AND APPLICATIONS volume 18 (19 Jun 2022)

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).