Abstract
A simultaneous fit of parton distribution functions (PDFs) and electroweak parameters to HERA data on deep inelastic scattering is presented. The input data are the neutral current and charged current inclusive cross sections which were previously used in the QCD analysis leading to the HERAPDF2.0 PDFs. In addition, the polarization of the electron beam was taken into account for the ZEUS data recorded between 2004 and 2007. Results on the vector and axial-vector couplings of the Z boson to u- and d-type quarks, on the value of the electroweak mixing angle and the mass of the W boson are presented. The values obtained for the electroweak parameters are in agreement with Standard Model predictions.
| Original language | English |
|---|---|
| Article number | 092002 |
| Journal | Physical review D |
| Volume | 93 |
| Issue number | 9 |
| Early online date | 1 May 2016 |
| DOIs | |
| Publication status | Published - 3 May 2016 |
Funding
We appreciate the contributions to the construction, maintenance and operation of the ZEUS detector of many people who are not listed as authors. The HERA machine group and the DESY computing staff are especially acknowledged for their success in providing excellent operation of the collider and the data-analysis environment. We thank the DESY directorate for their strong support and encouragement. This work has been supported in part by: the Italian National Institute for Nuclear Physics (INFN); the German Federal Ministry for Education and Research (BMBF), under Contract No. 05 H09PDF; HIR Grant No. UM.C/625/1/HIR/149 and UMRG Grants No. RU006-2013, RP012A-13AFR and RP012B-13AFR from Universiti Malaya, and ERGS Grant No. ER004-2012A from the Ministry of Education, Malaysia; the National Science Centre, Poland, under Contract No. DEC-2012/06/M/ST2/00428; the Science and Technology Facilities Council, UK; the German Federal Ministry for Education and Research (BMBF), under Contract No. 05h09GUF, and the SFB 676 of the Deutsche Forschungsgemeinschaft (DFG); the Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT) and its grants for Scientific Research; RF Presidential Grant No. 3042.2014.2 for the Leading Scientific Schools, Russia; the Israel Science Foundation; the Natural Sciences and Engineering Research Council of Canada (NSERC); the Polish National Science Centre Projects No. DEC 2011/01/B/ST2/03643 and DEC-2011/03/B/ST2/00220; and the Alexander von Humboldt Foundation. Publisher Copyright: © 2016 American Physical Society.
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics