Measurement of the Z boson differential cross section in transverse momentum and rapidity in proton–proton collisions at 8 TeV
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, cilt.749, ss.187-209, 2015 (SCI-Expanded)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 749
- Basım Tarihi: 2015
- Doi Numarası: 10.1016/j.physletb.2015.07.065
- Dergi Adı: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.187-209
- Anahtar Kelimeler: CMS, Physics, Z boson differential cross section
- Erzincan Binali Yıldırım Üniversitesi Adresli: Evet
Özet
© 2015 CERN for the benefit of the CMS CollaborationWe present a measurement of the Z boson differential cross section in rapidity and transverse momentum using a data sample of pp collision events at a centre-of-mass energy s=8 TeV, corresponding to an integrated luminosity of 19.7 fb−1. The Z boson is identified via its decay to a pair of muons. The measurement provides a precision test of quantum chromodynamics over a large region of phase space. In addition, due to the small experimental uncertainties in the measurement the data has the potential to constrain the gluon parton distribution function in the kinematic regime important for Higgs boson production via gluon fusion. The results agree with the next-to-next-to-leading-order predictions computed with the FEWZ program. The results are also compared to the commonly used leading-order MADGRAPH and next-to-leading-order POWHEG generators.