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Paper   IPM / Particles / 16220
School of Particles and Accelerator
  Title:   Explicit jet veto as a tool to purify the underlying event in the Drell-Yan process using CMS Open Data
1.  Saeid Paktinat Mehdiabadi
2.  Ali Fahim
  Status:   Published
  Journal: J. Phys. G: Nucl. Part. Phys
  No.:  9
  Vol.:  46
  Year:  2019
  Supported by:  IPM
The underlying event is an important part of high-energy collision events. In the event generators, the underlying event is tuned by fits to collision data. Usually, the underlying event observables are affected by the existence of extra jets and it is difficult to find a part of the phase space which is dominated by the underlying event. In this paper, we suggest to veto the jets in the considered region to disentangle these effects. The idea is verified to work on CMS Open Data. To our knowledge, it is the first time that such ideas are tested on real collision data.

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