Does the W mass reconstruction survive QCD effects?
(1994) In Physical Review Letters 72(1). p.28-31- Abstract
In the hadronic decay mode of a pair of W bosons, e+e-→W+W-→q1q̄2q3qbar4, QCD interference effects can mix up the two color singlets q1q̄2 and q3q̄4, i.e., produce hadrons that cannot be uniquely assigned to either of W+ and W-. We show that interference is negligible for energetic perturbative gluon emission, and develop models to help us to estimate the nonperturbative effects. The total contribution to the systematic error on the W mass reconstruction may be as large as 40 MeV.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/88aaf889-79df-45c3-a472-68a6b9df29a3
- author
- Sjöstrand, Torbjörn LU and Khoze, Valery A.
- publishing date
- 1994-01-03
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review Letters
- volume
- 72
- issue
- 1
- pages
- 4 pages
- publisher
- American Physical Society
- external identifiers
-
- scopus:0001957365
- ISSN
- 0031-9007
- DOI
- 10.1103/PhysRevLett.72.28
- language
- English
- LU publication?
- no
- id
- 88aaf889-79df-45c3-a472-68a6b9df29a3
- date added to LUP
- 2019-05-02 21:57:21
- date last changed
- 2021-05-23 06:18:35
@article{88aaf889-79df-45c3-a472-68a6b9df29a3, abstract = {{<p>In the hadronic decay mode of a pair of W bosons, e+e-→W+W-→q1q̄2q3qbar4, QCD interference effects can mix up the two color singlets q1q̄2 and q3q̄4, i.e., produce hadrons that cannot be uniquely assigned to either of W+ and W-. We show that interference is negligible for energetic perturbative gluon emission, and develop models to help us to estimate the nonperturbative effects. The total contribution to the systematic error on the W mass reconstruction may be as large as 40 MeV.</p>}}, author = {{Sjöstrand, Torbjörn and Khoze, Valery A.}}, issn = {{0031-9007}}, language = {{eng}}, month = {{01}}, number = {{1}}, pages = {{28--31}}, publisher = {{American Physical Society}}, series = {{Physical Review Letters}}, title = {{Does the W mass reconstruction survive QCD effects?}}, url = {{http://dx.doi.org/10.1103/PhysRevLett.72.28}}, doi = {{10.1103/PhysRevLett.72.28}}, volume = {{72}}, year = {{1994}}, }