Measurement of the single top quark t-channel cross section with a template fit analysis

5th International Workshop on Top Quark Physics

Merola, Mario^1

INFN Napoli, Italy^1

关键词: Centre-of-mass energies;    Channel cross section;    CKM matrix;    Control samples;    Integrated luminosity;    Production cross section;    Proton proton collisions;    Pseudorapidity distributions;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/452/1/012018/pdf
DOI  :  10.1088/1742-6596/452/1/012018

来源: IOP

【 摘 要 】

We present a measurement of the inclusive single top t-channel production cross section in proton-proton collisions at the LHC, using data collected with the CMS experiment during 2011 and 2012. The analyzed data correspond to an integrated luminosity of 1.17/1.56 fb-1for muon/electron channel respectively at the centre-of-mass energy of 7TeV, and to 5.0 fb-1at 8 TeV. The analysis exploits the pseudorapidity distribution of the recoil jet and reconstructed top-quark mass using background estimates determined from control samples in data. The measurement is used to determine the CKM matrix element |Vtb|.