One-loop QCD helicity amplitudes for pp -> tt(over)j to O(ε2)

Research output: Contribution to journal › Journal article › Research › peer-review

Standard

One-loop QCD helicity amplitudes for pp -> tt(over)j to O(ε2). / Badger, Simon; Becchetti, Matteo; Chaubey, Ekta; Marzucca, Robin; Sarandrea, Francesco.

In: Journal of High Energy Physics (Online), Vol. 2022, No. 6, 66, 13.06.2022.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Badger, S, Becchetti, M, Chaubey, E, Marzucca, R & Sarandrea, F 2022, 'One-loop QCD helicity amplitudes for pp -> tt(over)j to O(ε2)', Journal of High Energy Physics (Online), vol. 2022, no. 6, 66. https://doi.org/10.1007/JHEP06(2022)066

APA

Badger, S., Becchetti, M., Chaubey, E., Marzucca, R., & Sarandrea, F. (2022). One-loop QCD helicity amplitudes for pp -> tt(over)j to O(ε2). Journal of High Energy Physics (Online), 2022(6), [66]. https://doi.org/10.1007/JHEP06(2022)066

Vancouver

Badger S, Becchetti M, Chaubey E, Marzucca R, Sarandrea F. One-loop QCD helicity amplitudes for pp -> tt(over)j to O(ε2). Journal of High Energy Physics (Online). 2022 Jun 13;2022(6). 66. https://doi.org/10.1007/JHEP06(2022)066

Author

Badger, Simon ; Becchetti, Matteo ; Chaubey, Ekta ; Marzucca, Robin ; Sarandrea, Francesco. / One-loop QCD helicity amplitudes for pp -> tt(over)j to O(ε2). In: Journal of High Energy Physics (Online). 2022 ; Vol. 2022, No. 6.

Bibtex

@article{f3fa93d6073c4bcfb830b6dc5d9b3b73,
title = "One-loop QCD helicity amplitudes for pp -> tt(over)j to O(ε2)",
abstract = "We compute helicity amplitudes for the one-loop QCD corrections to top-quark pair production analytically in terms of a set of uniformly transcendental master integrals. We provide corrections up to O(epsilon(2)) in the dimensional regulator for the first time which are relevant at NNLO. Four independent pentagon integral topologies appear in the complete description of the colour structure for which we provide numerical solutions using canonical form differential equations and the method of generalised power series expansions. Analytic forms of the boundary values are obtained in all cases except one where we find a one-dimensional integral representation.",
keywords = "Higher-Order Perturbative Calculations, Top Quark, QUARK PAIR PRODUCTION, DIFFERENTIAL-EQUATIONS, INTEGRATION, ALGORITHM, JET",
author = "Simon Badger and Matteo Becchetti and Ekta Chaubey and Robin Marzucca and Francesco Sarandrea",
note = "37 pages. ancillary files containing analytic amplitudes and integral evaluation routines. v2 references added",
year = "2022",
month = jun,
day = "13",
doi = "10.1007/JHEP06(2022)066",
language = "English",
volume = "2022",
journal = "Journal of High Energy Physics (Online)",
issn = "1126-6708",
publisher = "Springer",
number = "6",

}

RIS

TY - JOUR

T1 - One-loop QCD helicity amplitudes for pp -> tt(over)j to O(ε2)

AU - Badger, Simon

AU - Becchetti, Matteo

AU - Chaubey, Ekta

AU - Marzucca, Robin

AU - Sarandrea, Francesco

N1 - 37 pages. ancillary files containing analytic amplitudes and integral evaluation routines. v2 references added

PY - 2022/6/13

Y1 - 2022/6/13

N2 - We compute helicity amplitudes for the one-loop QCD corrections to top-quark pair production analytically in terms of a set of uniformly transcendental master integrals. We provide corrections up to O(epsilon(2)) in the dimensional regulator for the first time which are relevant at NNLO. Four independent pentagon integral topologies appear in the complete description of the colour structure for which we provide numerical solutions using canonical form differential equations and the method of generalised power series expansions. Analytic forms of the boundary values are obtained in all cases except one where we find a one-dimensional integral representation.

AB - We compute helicity amplitudes for the one-loop QCD corrections to top-quark pair production analytically in terms of a set of uniformly transcendental master integrals. We provide corrections up to O(epsilon(2)) in the dimensional regulator for the first time which are relevant at NNLO. Four independent pentagon integral topologies appear in the complete description of the colour structure for which we provide numerical solutions using canonical form differential equations and the method of generalised power series expansions. Analytic forms of the boundary values are obtained in all cases except one where we find a one-dimensional integral representation.

KW - Higher-Order Perturbative Calculations

KW - Top Quark

KW - QUARK PAIR PRODUCTION

KW - DIFFERENTIAL-EQUATIONS

KW - INTEGRATION

KW - ALGORITHM

KW - JET

U2 - 10.1007/JHEP06(2022)066

DO - 10.1007/JHEP06(2022)066

M3 - Journal article

VL - 2022

JO - Journal of High Energy Physics (Online)

JF - Journal of High Energy Physics (Online)

SN - 1126-6708

IS - 6

M1 - 66

ER -

ID: 301443001