Study of central exclusive [InlineEquation not available: see fulltext.] production in proton-proton collisions at √s=5.02 and 13TeV

The CMS Collaboration

Research output: Contribution to journalArticle

Abstract

Central exclusive and semiexclusive production of [InlineEquation not available: see fulltext.] pairs is measured with the CMS detector in proton-proton collisions at the LHC at center-of-mass energies of 5.02 and 13TeV. The theoretical description of these nonperturbative processes, which have not yet been measured in detail at the LHC, poses a significant challenge to models. The two pions are measured and identified in the CMS silicon tracker based on specific energy loss, whereas the absence of other particles is ensured by calorimeter information. The total and differential cross sections of exclusive and semiexclusive central [InlineEquation not available: see fulltext.] production are measured as functions of invariant mass, transverse momentum, and rapidity of the [InlineEquation not available: see fulltext.] system in the fiducial region defined as transverse momentum [InlineEquation not available: see fulltext.] and pseudorapidity [InlineEquation not available: see fulltext.]. The production cross sections for the four resonant channels [InlineMediaObject not available: see fulltext.], [InlineEquation not available: see fulltext.], [InlineMediaObject not available: see fulltext.], and [InlineMediaObject not available: see fulltext.]are extracted using a simple model. These results represent the first measurement of this process at the LHC collision energies of 5.02 and 13TeV.

Original languageEnglish
Article number718
JournalEuropean Physical Journal C
Volume80
Issue number8
DOIs
Publication statusPublished - 2020 Aug 1

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Physics and Astronomy (miscellaneous)

Fingerprint Dive into the research topics of 'Study of central exclusive [InlineEquation not available: see fulltext.] production in proton-proton collisions at √s=5.02 and 13TeV'. Together they form a unique fingerprint.

  • Cite this