# Higgs production via gluon fusion in k{sub T} factorisation

## Abstract

Theoretical studies of Higgs production via gluon fusion are frequently carried out in the limit where the top quark mass is much larger than the Higgs mass, an approximation which reduces the top quark loop to an effective vertex. We present a numerical analysis of the error thus introduced by performing a Monte Carlo calculation for gg{yields}h in k{sub T}-factorisation, using the parton shower generator CASCADE. By examining both inclusive and exclusive quantities, we find that retaining the top-mass dependence results in only a small enhancement of the cross-section. We then proceed to compare CASCADE to the collinear Monte Carlos PYTHIA, MC-NLO and POWHEG.

- Authors:

- Theoretical Physics Department, University of Oxford, Oxford OX1 3NP (United Kingdom)
- Deutsches Elektronen Synchrotron, Hamburg 22603 (Germany)
- Department of Applied Mathematics and Theoretical Physics, Cambridge, CB3 OWA (United Kingdom)

- Publication Date:

- OSTI Identifier:
- 21608233

- Resource Type:
- Journal Article

- Journal Name:
- AIP Conference Proceedings

- Additional Journal Information:
- Journal Volume: 1350; Journal Issue: 1; Conference: DIFFRACTION 2010: International workshop on diffraction in high energy physics, Otranto (Italy), 10-15 Sep 2010; Other Information: DOI: 10.1063/1.3601419; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X

- Country of Publication:
- United States

- Language:
- English

- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; APPROXIMATIONS; C CODES; COMPARATIVE EVALUATIONS; COMPUTERIZED SIMULATION; CROSS SECTIONS; EXCLUSIVE INTERACTIONS; FACTORIZATION; FEYNMAN DIAGRAM; GLUON-GLUON INTERACTIONS; GLUONS; HIGGS BOSONS; HIGGS MODEL; INCLUSIVE INTERACTIONS; MONTE CARLO METHOD; NUMERICAL ANALYSIS; PARTICLE PRODUCTION; T QUARKS; BOSONS; CALCULATION METHODS; COMPUTER CODES; DIAGRAMS; ELEMENTARY PARTICLES; EVALUATION; FERMIONS; INFORMATION; INTERACTIONS; MATHEMATICAL MODELS; MATHEMATICS; PARTICLE INTERACTIONS; PARTICLE MODELS; POSTULATED PARTICLES; QUARKS; SIMULATION; TOP PARTICLES

### Citation Formats

```
Hautmann, F., Jung, H., and Pandis, V..
```*Higgs production via gluon fusion in k{sub T} factorisation*. United States: N. p., 2011.
Web. doi:10.1063/1.3601419.

```
Hautmann, F., Jung, H., & Pandis, V..
```*Higgs production via gluon fusion in k{sub T} factorisation*. United States. doi:10.1063/1.3601419.

```
Hautmann, F., Jung, H., and Pandis, V.. Fri .
"Higgs production via gluon fusion in k{sub T} factorisation". United States. doi:10.1063/1.3601419.
```

```
@article{osti_21608233,
```

title = {Higgs production via gluon fusion in k{sub T} factorisation},

author = {Hautmann, F. and Jung, H. and Pandis, V.},

abstractNote = {Theoretical studies of Higgs production via gluon fusion are frequently carried out in the limit where the top quark mass is much larger than the Higgs mass, an approximation which reduces the top quark loop to an effective vertex. We present a numerical analysis of the error thus introduced by performing a Monte Carlo calculation for gg{yields}h in k{sub T}-factorisation, using the parton shower generator CASCADE. By examining both inclusive and exclusive quantities, we find that retaining the top-mass dependence results in only a small enhancement of the cross-section. We then proceed to compare CASCADE to the collinear Monte Carlos PYTHIA, MC-NLO and POWHEG.},

doi = {10.1063/1.3601419},

journal = {AIP Conference Proceedings},

issn = {0094-243X},

number = 1,

volume = 1350,

place = {United States},

year = {2011},

month = {7}

}

DOI: 10.1063/1.3601419

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