Measurement of the proton-air cross section with Telescope Array's Black Rock Mesa and Long Ridge fluorescence detectors, and surface array in hybrid mode
Povzetek
Ultra high energy cosmic rays provide the highest known energy source in the universe to measure proton cross sections. Though conditions for collecting such data are less controlled than an
accelerator environment, current generation cosmic ray observatories have large enough exposures to collect significant statistics for a reliable measurement for energies above what can be attained in the lab. Cosmic ray measurements of cross section use atmospheric calorimetry to measure depth of air shower maximum (Xmax), which is related to the primary particle’s energy and mass. The tail of the Xmax distribution is assumed to be dominated by showers generated by protons, allowing measurement of the inelastic proton-air cross section. In this work the proton-air inelastic
cross section measurement, σ_inel_p−air, using data observed by Telescope Array’s Black Rock Mesa and Long Ridge fluorescence detectors and surface detector array in hybrid mode is presented. σ_inel_p−air is observed to be 520.1 ± 35.8 [Stat.] +25.0 −40 [Sys.] mb at √s = 73 TeV. The total proton-proton cross section is subsequently inferred from Glauber formalism and is found to be σ_tot_pp = 139.4 +23.4−21.3[Stat.] +15.0−24.0[Sys.] mb.
Ključne besede
cosmic rays;astroparticles;proton-air cross section;
Podatki
| Jezik: | Angleški jezik |
|---|---|
| Leto izida: | 2020 |
| Tipologija: | 1.01 - Izvirni znanstveni članek |
| Organizacija: | UNG - Univerza v Novi Gorici |
| UDK: | 524 |
| COBISS: |
50289923
|
| ISSN: | 2470-0010 |
| Št. ogledov: | 1675 |
| Št. prenosov: | 0 |
| Ocena: | 0 (0 glasov) |
| Metapodatki: |
|
Ostali podatki
| URN: | URN:SI:UNG |
|---|---|
| Strani: | str. 1-13 |
| Zvezek: | ǂVol. ǂ102 |
| Čas izdaje: | Sep. 2020 |
| DOI: | 10.1103/PhysRevD.102.062004 |
| ID: | 12532889 |
Priporočena dela:
Measurement of the proton-air cross section with Telescope Array's Black Rock Mesa and Long Ridge fluorescence detectors, and surface array in hybrid mode
2020,
ni podatka o podnaslovu
Measurement of the proton-air cross section with Telescope Array's Middle Drum detector and surface array in hybrid mode
2015,
ni podatka o podnaslovu
Depth of ultra high energy cosmic ray induced air shower maxima measured by the telescope array black rock and long ridge FADC fluorescence detectors and surface array in hybrid mode
2018,
ni podatka o podnaslovu
Study of UHECR composition using Telescope Array's Middle Drum detector and surface array in hybrid mode
2015,
ni podatka o podnaslovu