Dr Warren Perkins

Darllenydd, Physics

+44 (0) 1792 295011

w.perkins@abertawe.ac.uk

502
Pumed Llawr
Adeilad Vivian
Campws Singleton

Ar gael ar gyfer Goruchwyliaeth Ôl-raddedig

Dolenni Ymchwil

https://orcid.org/0000-0002-4434-8178

Trosolwg

Ar ôl mynychu'r ysgol uwchradd ger Manceinion, astudiodd ffiseg yng Ngholeg y Drindod Caergrawnt, lle datblygodd ddiddordeb brwd mewn rhwyfo. Arhosodd yng Nghaergrawnt i gwblhau ei Ph.D. ym 1991, ac ar ôl gwaith ymchwil ym Mhrifysgol Sussex, symudodd i Abertawe ym 1993. Mae ei ddiddordebau ymchwil yn canolbwyntio ar dechnegau modern o gyfrifo osgledau gwasgariad aflonyddol mewn damcaniaethau medrydd ffiseg gronynnau. Y tu allan i’w waith, mae’n mwynhau crwydro’r bryniau a chefnogi Notts County.

Meysydd Arbenigedd

Osgledau gwasgariad aflonyddol mewn damcaniaethau medrydd

Cyhoeddiadau

Uchafbwyntiau Ymchwil

Dunbar, D., Godwin, J., Jehu, G., & Perkins, W. (2017). Diagrammar in an extended theory of gravity. Physics Letters B, 771, 230-234.
https://doi.org/10.1016/j.physletb.2017.05.052, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa32149
Bjerrum-Bohr, N., Dunbar, D., & Perkins, W. (2008). Analytic structure of three-mass triangle coefficients. Journal of High Energy Physics, 2008(04), 038-038.
https://doi.org/10.1088/1126-6708/2008/04/038, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa1150
Dunbar, D., Ettle, J., & Perkins, W. (2010). Augmented recursion for one-loop gravity amplitudes. Journal of High Energy Physics, 2010(6), 27
https://doi.org/10.1007/JHEP06(2010)027, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa1152
Bidder, S., Bjerrum-Bohr, N., Dunbar, D., & Perkins, W. (2005). One-loop gluon scattering amplitudes in theories with supersymmetries. Physics Letters B, 612(1-2), 75-88.
https://doi.org/10.1016/j.physletb.2005.02.045, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa1541
Bidder, S., Perkins, W., & Risager, K. (2005). One-loop NMHV amplitudes involving gluinos and scalars in Script N = 4 gauge theory. Journal of High Energy Physics, 2005(10), 17 pages-003.
https://doi.org/10.1088/1126-6708/2005/10/003, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa1542
Bjerrum-Bohr, N., Dunbar, D., Ita, H., Perkins, W., & Risager, K. (2006). MHV-vertices for gravity amplitudes. Journal of High Energy Physics, 2006(01), 20 pages-009.
https://doi.org/10.1088/1126-6708/2006/01/009, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa1543
Bjerrum-Bohr, N., Dunbar, D., Ita, H., Perkins, W., & Risager, K. (2006). The no-triangle hypothesis for Script N = 8 supergravity. Journal of High Energy Physics, 2006(12), 43 pages-072.
https://doi.org/10.1088/1126-6708/2006/12/072, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa1544
Dunbar, D., Ettle, J., & Perkins, W. (2011). Perturbative expansion of N<8 Supergravity. Physical Review D, 83(6)
https://doi.org/10.1103/PhysRevD.83.065015, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa7264
Dunbar, D., Ettle, J., & Perkins, W. (2010). Augmented Recursion For One-loop Amplitudes. Nuclear Physics B - Proceedings Supplements, 205-206-79.
https://doi.org/10.1016/j.nuclphysbps.2010.08.022, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa7265
Perkins, W. & Warrick, E. (2009). Unitarity Methods For One-Loop QCD Amplitudes. Nuclear Physics B - Proceedings Supplements, 186-85.
https://doi.org/10.1016/j.nuclphysbps.2008.12.018, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa7267

Holl Ymchwil

Erthyglau Cylchgronau

Dalgleish, A., Dunbar, D., Perkins, W., & Strong, J. (2020). Full color two-loop six-gluon all-plus helicity amplitude. Physical Review D, 101(7)
https://doi.org/10.1103/physrevd.101.076024, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa53935
Dunbar, D., Perkins, W., & Strong, J. (2020). n -point QCD two-loop amplitude. Physical Review D, 101(7), 076001-1-076001-10.
https://doi.org/10.1103/physrevd.101.076001, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa53395
Dunbar, D., Godwin, J., Perkins, W., & Strong, J. (2020). Color dressed unitarity and recursion for Yang-Mills two-loop all-plus amplitudes. Physical Review D, 101(1)
https://doi.org/10.1103/physrevd.101.016009, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa53063
Dunbar, D., Godwin, J., Jehu, G., & Perkins, W. (2018). Loop amplitudes in an extended gravity theory. Physics Letters B, 780, 41-47.
https://doi.org/10.1016/j.physletb.2018.02.046, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa36776
Dunbar, D., Godwin, J., Jehu, G., & Perkins, W. (2017). Diagrammar in an extended theory of gravity. Physics Letters B, 771, 230-234.
https://doi.org/10.1016/j.physletb.2017.05.052, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa32149
Dunbar, D., Godwin, J., Jehu, G., & Perkins, W. (2017). Analytic all-plus-helicity gluon amplitudes in QCD. Physical Review D, 96(11)
https://doi.org/10.1103/PhysRevD.96.116013, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa36320
Dunbar, D., Jehu, G., & Perkins, W. (2017). Two-loop gravity amplitudes from four dimensional unitarity. Physical Review D, 95(4)
https://doi.org/10.1103/PhysRevD.95.046012, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa31619
Dunbar, D. & Perkins, W. (2016). N=4 supergravity next-to-maximally-helicity-violating six-point one-loop amplitude. Physical Review D, 94(12)
https://doi.org/10.1103/PhysRevD.94.125027, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa25889
Dunbar, D. & Perkins, W. (2016). Two-Loop Six Gluon All-Plus Helicity Amplitude. Physical Review Letters, 117(6)
https://doi.org/10.1103/physrevlett.117.061602, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa28112
Dunbar, D., Jehu, G., & Perkins, W. (2016). Two-loop n-point all-plus helicity amplitude. Physical Review D, 93(12)
https://doi.org/10.1103/PhysRevD.93.125006, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa27356
Dunbar, D. & Perkins, W. (2016). Two-loop five-point all-plus helicity Yang-Mills amplitude. Physical Review D, 93(8)
https://doi.org/10.1103/physrevd.93.085029, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa27047
Alston, S., Dunbar, D., & Perkins, W. (2015). n-point amplitudes with a single negative-helicity graviton. Physical Review D, 92(6)
https://doi.org/10.1103/PhysRevD.92.065024, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa22986
Dunbar, D., Ettle, J., & Perkins, W. (2012). Constructing gravity amplitudes from real soft and collinear factorization. Physical Review D, 86(2), 026009
https://doi.org/10.1103/PhysRevD.86.026009, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa8451
Dunbar, D., Ettle, J., & Perkins, W. (2012). Maximal-Helicity-Violating n-Point One-Loop Amplitude in N=4 Supergravity. Physical Review Letters, 108(6), 061603
https://doi.org/10.1103/PhysRevLett.108.061603, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa7257
Alston, S., Dunbar, D., & Perkins, W. (2012). Complex factorization and recursion for one-loop amplitudes. Physical Review D, 86(8), 085022
https://doi.org/10.1103/PhysRevD.86.085022, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa13423
Dunbar, D., Ettle, J., & Perkins, W. (2011). Perturbative expansion of N<8 Supergravity. Physical Review D, 83(6)
https://doi.org/10.1103/PhysRevD.83.065015, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa7264
Dunbar, D., Ettle, J., & Perkins, W. (2011). Obtaining one-loop gravity amplitudes using spurious singularities. Physical Review D, 84(12)
https://doi.org/10.1103/PhysRevD.84.125029, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa7259
Dunbar, D., Ettle, J., & Perkins, W. (2010). Augmented recursion for one-loop gravity amplitudes. Journal of High Energy Physics, 2010(6), 27
https://doi.org/10.1007/JHEP06(2010)027, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa1152
Dunbar, D., Ettle, J., & Perkins, W. (2010). Augmented Recursion For One-loop Amplitudes. Nuclear Physics B - Proceedings Supplements, 205-206-79.
https://doi.org/10.1016/j.nuclphysbps.2010.08.022, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa7265
Perkins, W. & Warrick, E. (2009). Unitarity Methods For One-Loop QCD Amplitudes. Nuclear Physics B - Proceedings Supplements, 186-85.
https://doi.org/10.1016/j.nuclphysbps.2008.12.018, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa7267
Perkins, W., J.H., E., & D.C., D. (2009). ``Approximate Universality of N=4 Super-Yang-Mills One-Loop Amplitudes.
SU Repository: https://cronfa.swan.ac.uk/Record/cronfa7984
Dunbar, D., Perkins, W., & Warrick, E. (2009). The unitarity method using a canonical basis approach. Journal of High Energy Physics, 2009(06), 056-056.
https://doi.org/10.1088/1126-6708/2009/06/056, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa1115
Bjerrum-Bohr, N., Dunbar, D., & Perkins, W. (2008). Analytic structure of three-mass triangle coefficients. Journal of High Energy Physics, 2008(04), 038-038.
https://doi.org/10.1088/1126-6708/2008/04/038, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa1150
Bjerrum-Bohr, N., Dunbar, D., Ita, H., Perkins, W., & Risager, K. (2006). MHV-vertices for gravity amplitudes. Journal of High Energy Physics, 2006(01), 20 pages-009.
https://doi.org/10.1088/1126-6708/2006/01/009, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa1543
Bjerrum-Bohr, N., Dunbar, D., Ita, H., Perkins, W., & Risager, K. (2006). The no-triangle hypothesis for Script N = 8 supergravity. Journal of High Energy Physics, 2006(12), 43 pages-072.
https://doi.org/10.1088/1126-6708/2006/12/072, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa1544
Bidder, S., Bjerrum-Bohr, N., Dunbar, D., & Perkins, W. (2005). One-loop gluon scattering amplitudes in theories with supersymmetries. Physics Letters B, 612(1-2), 75-88.
https://doi.org/10.1016/j.physletb.2005.02.045, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa1541
Bidder, S., Perkins, W., & Risager, K. (2005). One-loop NMHV amplitudes involving gluinos and scalars in Script N = 4 gauge theory. Journal of High Energy Physics, 2005(10), 17 pages-003.
https://doi.org/10.1088/1126-6708/2005/10/003, SU Repository: https://cronfa.swan.ac.uk/Record/cronfa1542

Cyfraniadau Cynadleddau

Dunbar, D., Godwin, J., Jehu, G., & Perkins, W. (2017). Analytic results for two-loop Yang-Mills. In Proceedings of Science13th International Symposium on Radiative Corrections.
SU Repository: https://cronfa.swan.ac.uk/Record/cronfa37597
https://pos.sissa.it/290/026/pdf
Perkins, W. & Bartalini, P. (2008). ``Round Table Discussion. Event generation: Are we ready for LHC?,"". In PoS ACAT08
SU Repository: https://cronfa.swan.ac.uk/Record/cronfa7983
Perkins, W. (2008). ``Unitarity methods for massless one-loop amplitudes. In PoS ACAT08
SU Repository: https://cronfa.swan.ac.uk/Record/cronfa7985

Goruchwyliaeth

Unitarity and Recursion for Multi-loop Yang-Mills Amplitudes (cyfredol)

PhD

Goruchwyliwr arall: Prof Adi Armoni
Analytic Techniques for Calculating Two-Loop Yang-Mills Amplitudes (dyfarnwyd 2023)

PhD

Goruchwyliwr arall: Prof David Dunbar
New techniques for high orders in scattering amplitudes (dyfarnwyd 2022)

PhD

Goruchwyliwr arall: Prof David Dunbar

Rolau Eraill

Cyfarwyddwr Uniondeb Academaidd, Prifysgol Abertawe

2019 - 2022

Dr Warren Perkins

Rhif ffôn

Cyfeiriad ebost