Top quark induced backgrounds to higgs production in the W W (*) → l l ν ν decay channel at next-to-leading-order in QCD
(2014) In Physical Review Letters 112(8).- Abstract
We present the complete next-to-leading-order (NLO) contributions to the pp→e+νeμ-ν̄μbb̄+X process in the four-flavor scheme, i.e., with massive b quarks, and its contribution to the H→WW(*) →llνν measurement in the 1-jet bin at the LHC. This background process includes top pair, single top, and non-top-quark resonant contributions. The uncertainty at NLO from the renormalization and factorization scale dependence is about +30%-20%. We show that the NLO corrections are relatively small, and that separating this background in top pair, Wt- and b-quark-associated llνν production is a fair approximation.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/9631a243-c28f-4519-85c2-38b4d68ae7bb
- author
- Frederix, R. LU
- publishing date
- 2014-02-25
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review Letters
- volume
- 112
- issue
- 8
- article number
- 082002
- publisher
- American Physical Society
- external identifiers
-
- scopus:84894711213
- ISSN
- 0031-9007
- DOI
- 10.1103/PhysRevLett.112.082002
- language
- English
- LU publication?
- no
- id
- 9631a243-c28f-4519-85c2-38b4d68ae7bb
- date added to LUP
- 2019-05-28 15:33:05
- date last changed
- 2022-04-26 00:52:55
@article{9631a243-c28f-4519-85c2-38b4d68ae7bb, abstract = {{<p>We present the complete next-to-leading-order (NLO) contributions to the pp→e+νeμ-ν̄μbb̄+X process in the four-flavor scheme, i.e., with massive b quarks, and its contribution to the H→WW(*) →llνν measurement in the 1-jet bin at the LHC. This background process includes top pair, single top, and non-top-quark resonant contributions. The uncertainty at NLO from the renormalization and factorization scale dependence is about +30%-20%. We show that the NLO corrections are relatively small, and that separating this background in top pair, Wt- and b-quark-associated llνν production is a fair approximation.</p>}}, author = {{Frederix, R.}}, issn = {{0031-9007}}, language = {{eng}}, month = {{02}}, number = {{8}}, publisher = {{American Physical Society}}, series = {{Physical Review Letters}}, title = {{Top quark induced backgrounds to higgs production in the W W (*) → l l ν ν decay channel at next-to-leading-order in QCD}}, url = {{http://dx.doi.org/10.1103/PhysRevLett.112.082002}}, doi = {{10.1103/PhysRevLett.112.082002}}, volume = {{112}}, year = {{2014}}, }