Jul 12 – 23, 2021
Online
Europe/Berlin timezone

When heavy ions meet cosmic rays: potential impact of QGP formation on the muon puzzle

Jul 14, 2021, 6:00 PM
1h 30m
03

03

Talk CRI | Cosmic Ray Indirect Discussion

Speaker

Tanguy Pierog (KIT, Karlsruhe)

Description

The deficit of muons in the simulation of extensive air showers is a long-standing problem and the origin of large uncertainties in the reconstruction of the mass of the high energy primary cosmic rays. Hadronic interaction models, re-tuned after early LHC data, have a more consistent description of the muon content among them but still disagree with data. Collective hadronization due to the formation of a quark gluon plasma (QGP) has already been studied as a possible cause for a larger production of muons under extreme conditions (rare, very central nuclear interactions), but without real success. However, in the view of the most recent LHC data, a collective hadronization phase might not only be limited to such extreme conditions. And because of its different ratio of electromagnetic to hadronic energy, a QGP may have the properties to solve the muon puzzle. This hypothesis is demonstrated using a theoretical approach and tested in a realistic way by the modification of hadronic model spectra in CONEX to mimic the production of a QGP also in less extreme conditions with a possible large impact on air shower physics.

Keywords

air shower; LHC; muon puzzle ; simulation;CONEX

Subcategory Theoretical Results

Primary author

Tanguy Pierog (KIT, Karlsruhe)

Co-authors

Sebastian Baur Hans Dembinski (MPIK Heidelberg) Dr Matias Perlin (ITEDA, Buenos Aires, Argentina) Ralf Ulrich (Karlsruhe Institute of Technology) Prof. Klaus Werner (SUBATECH, Nantes, France)

Presentation materials