Fluctuations and Selection Bias in 5 and 13 TeV p-p Collisions: Where are the jets?

Abstract

The ALICE collaboration recently reported high-statistics ${\mathbf{p}}_{\mathbf{t}}$ spectra from 5 TeV and 13 TeV p-p collisions with intent to determine the role of jets in high-multiplicity collisions. In the present study a two-component (soft + hard) model (TCM) of hadron production in p-p collisions is applied to ALICE ${\mathbf{p}}_{\mathbf{t}}$ spectra. As in previous TCM studies of A-B collision systems jet and nonjet contributions to ${\mathbf{p}}_{\mathbf{t}}$ spectra are accurately separated over the entire ${\mathbf{p}}_{\mathbf{t}}$ acceptance. The statistical significance of data-model differences is established leading to insights concerning selection bias and spectrum model validity.

Comments: 5 pages, 6 figures