Leading-color fully differential two-loop soft corrections to QCD dipole showers
(2018) In Physical Review D 98(7).- Abstract
We compute the next-to-leading-order corrections to soft-gluon radiation differentially in the one-emission phase space. We show that their contribution to the evolution of color dipoles can be obtained in a modified subtraction scheme, such that both one- and two-emission terms are amenable to Monte Carlo integration. The two-loop cusp anomalous dimension is recovered naturally upon integration over the full phase space. We present two independent implementations of the new algorithm in the two event generators Pythia and Sherpa, and we compare the resulting fully differential simulation to the Catani-Marchesini-Webber (CMW) scheme.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1f614359-b534-4e82-addf-9ec3b13f30b5
- author
- Dulat, Falko ; Höche, Stefan and Prestel, Stefan LU
- publishing date
- 2018-10-01
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review D
- volume
- 98
- issue
- 7
- article number
- 074013
- publisher
- American Physical Society
- external identifiers
-
- scopus:85056167312
- ISSN
- 2470-0010
- DOI
- 10.1103/PhysRevD.98.074013
- language
- English
- LU publication?
- no
- id
- 1f614359-b534-4e82-addf-9ec3b13f30b5
- date added to LUP
- 2019-05-16 13:31:41
- date last changed
- 2022-04-18 05:04:45
@article{1f614359-b534-4e82-addf-9ec3b13f30b5, abstract = {{<p>We compute the next-to-leading-order corrections to soft-gluon radiation differentially in the one-emission phase space. We show that their contribution to the evolution of color dipoles can be obtained in a modified subtraction scheme, such that both one- and two-emission terms are amenable to Monte Carlo integration. The two-loop cusp anomalous dimension is recovered naturally upon integration over the full phase space. We present two independent implementations of the new algorithm in the two event generators Pythia and Sherpa, and we compare the resulting fully differential simulation to the Catani-Marchesini-Webber (CMW) scheme.</p>}}, author = {{Dulat, Falko and Höche, Stefan and Prestel, Stefan}}, issn = {{2470-0010}}, language = {{eng}}, month = {{10}}, number = {{7}}, publisher = {{American Physical Society}}, series = {{Physical Review D}}, title = {{Leading-color fully differential two-loop soft corrections to QCD dipole showers}}, url = {{http://dx.doi.org/10.1103/PhysRevD.98.074013}}, doi = {{10.1103/PhysRevD.98.074013}}, volume = {{98}}, year = {{2018}}, }