Skip to main content
Log in

Z 0 / γ +Jet via electron decay mode at \(\boldsymbol {\sqrt {s}=}\) 7 TeVin CMS@LHC

  • Published:
Pramana Aims and scope Submit manuscript

Abstract

The area-normalized angular distributions in events containing a Z 0 boson and a jet, using the electron decay mode, are presented. The data samples correspond to 5 fb −1 of proton–proton collisions at \(\sqrt {s}=7\) TeV, collected by the CMS detector. Events in which there is a Z boson and at least one jet, with a jet transverse momentum threshold of 30 GeV /c and absolute jet rapidity less than 2.4, are selected for this analysis. We compare our measurements with a next-to-leading order perturbative QCD calculation and two generators that combine tree-level matrix element calculations with parton showers.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Figure 1
Figure 2

Similar content being viewed by others

References

  1. H Ita et al, Phys.Rev. D 85, 031501(R) (2012), DOI: 10.1103/PhysRevD.85.031501

  2. J Owens, Rev. Mod. Phys. 59, 465 (1987), DOI: 10.1103/RevModPhys.59.465

  3. Z Belghobsi et al, Phys. Rev. D 79, 114024 (2009), DOI: 10.1103/PhysRevD.79.114024

  4. CMS Collaboration: The CMS experiment at the CERN LHC, J. Instrum. 3, S08004 (2008), DOI: 10.1088/1748-0221/3/08/S08004

  5. CMS Collaboration: Particle-flow event reconstruction in CMS and performance for jets, taus, and MET, CMS Physics Analysis Summary, CMS-PAS-PFT-09-001 (2009)

  6. M Cacciari, G P Salam and G Soyez, J. High Energy Phys. 04, 063 (2008), DOI: 10.1088/1126-6708/2008/04/063

  7. S L Linn, Y J Lu, V Gaultney-Werner and S S Yu, Angular distribution of photon + jet events in the center-of-mass frame for \(\sqrt {s} =\) 7 TeV, CMS Analysis Note, AN-11-497 (2012)

  8. CMS Collaboration: Electron reconstruction and identification at \(\sqrt {s} =\) 7 TeV, CMS Physics Analysis Summary, CMS-PAS-EGM-10-004 (2010)

  9. J Alwall, M Herquet, F Maltoni et al, J. High Energy Phys. 1106, 128 (2011), DOI: 10.1007/JHEP06(2011)128, arXiv:1106.0522

  10. T Sjostrand, S Mrenna and P Skands, J. High Energy Phys. 05, 026 (2006), DOI: 10.1088/1126-6708/2006/05/026

  11. Measurement of the Z 0/gamma+ Jet angular distributions in pp collisions at \(\sqrt (s) = 7\) TeV with the electron decay mode, Private communication (2012)

Download references

Acknowledgements

This work is done in collaboration with A P Singh, S S Yu, D Mekterovic, Y H Chang, W Lin and L K Saini from National Central University, Chung-Li, Taiwan. The authors thank CMS Collaboration for their help and support. The authors acknowledge UGC /DAE/DST (Govt. of India) for financial support.

Author information

Authors and Affiliations

Authors

Consortia

Corresponding author

Correspondence to U BHAWANDEEP.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

BHAWANDEEP, U., BERI, S.B. & for CMS Collaboration. Z 0 / γ +Jet via electron decay mode at \(\boldsymbol {\sqrt {s}=}\) 7 TeVin CMS@LHC. Pramana - J Phys 86, 487–491 (2016). https://doi.org/10.1007/s12043-015-1170-x

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12043-015-1170-x

Keywords

PACS Nos

Navigation