Volume 340 - The 39th International Conference on High Energy Physics (ICHEP2018) - Posters
Measurement of initial state radiation using Drell-Yan Events at CDF
H.S. Seo* on behalf of the CDF Collaboration
*corresponding author
Full text: pdf
Published on: August 02, 2019
Abstract
A study of the initial state gluon radiation (ISR) measurement in proton-antiproton collisions at $\sqrt{s}$ = 1.96 TeV is presented. This analysis uses Drell-Yan ($Z/\gamma^* \to ee,\mu\mu$) events in the CDF data sample, corresponding to an integrated luminosity of 9.4 $\mathrm{fb^{-1}}$. We find that the mean value of the transverse momentum distribution of the Drell-Yan system ($\langle p_T^{DY} \rangle$) is a good observable to measure the effect of the ISR. This observable has a logarithmic dependence on the mass square of $Z/\gamma^*$ boson ($m^2_{DY}$), which is parameterized as a linear function of $\langle p_T^{DY} \rangle = (-7.57 \pm 0.69) + (2.15 \mp 0.08)\log m^2_{DY}$. This measurement provides a way to estimate the effect of softly evolving ISR at very high mass region, and it can be used to control the ISR effect in other physics processes.
DOI: https://doi.org/10.22323/1.340.0799
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access