First minimum bias physics results at LHCb

TL;DR

This paper presents the initial measurements from the LHCb experiment, including particle production cross sections and ratios at different collision energies, providing foundational data for understanding proton-proton interactions.

Contribution

It reports the first minimum bias physics results from LHCb, measuring key particle production cross sections and ratios at 0.9 TeV and 7 TeV collision energies.

Findings

Measured $K^0_S$ production cross section at 0.9 TeV

Determined $ar{ ext{Lambda}}/ ext{Lambda}$ ratio at 0.9 TeV and 7 TeV

Provided preliminary results for proton-proton collision data

Abstract

We report on the first measurements of the LHCb experiment, as obtained from $pp$ collisions at $\sqrt{s} = 0.9$ TeV and 7 TeV recorded using a minimum bias trigger. In particular measurements of the absolute $K^0_S$ production cross section at $\sqrt{s} = 0.9$ TeV and of the $\bar{\Lambda}/\Lambda$ ratio both at $\sqrt{s} = 0.9$ TeV and 7 TeV are discussed and preliminary results are presented.