FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3143861333> ?p ?o ?g. }

• W3143861333 endingPage "E02" @default.
• W3143861333 startingPage "E02" @default.
• W3143861333 abstract "A search for ultra-high energy photons with energies above 1 EeV is performed using nine years of data collected by the Pierre Auger Observatory in hybrid operation mode. An unprecedented separation power between photon and hadron primaries is achieved by combining measurements of the longitudinal air-shower development with the particle content at ground measured by the fluorescence and surface detectors, respectively. Only three photon candidates at energies 1 - 2 EeV are found, which is compatible with the expected hadron-induced background. Upper limits on the integral flux of ultra-high energy photons of 0.038, 0.010, 0.009, 0.008 and 0.007 km$^{-2}$ sr$^{-1}$ yr$^{-1}$ are derived at 95% C.L. for energy thresholds of 1, 2, 3, 5 and 10 EeV. These limits bound the fractions of photons in the all-particle integral flux below 0.14%, 0.17%, 0.42%, 0.86% and 2.9%. For the first time the photon fraction at EeV energies is constrained at the sub-percent level. The improved limits are below the flux of diffuse photons predicted by some astrophysical scenarios for cosmogenic photon production. The new results rule-out the early top-down models $-$ in which ultra-high energy cosmic rays are produced by, e.g., the decay of super-massive particles $-$ and challenge the most recent super-heavy dark matter models." @default.
• W3143861333 created "2021-04-13" @default.
• W3143861333 creator A5000080128 @default.
• W3143861333 creator A5000203598 @default.
• W3143861333 creator A5000371010 @default.
• W3143861333 creator A5000426164 @default.
• W3143861333 creator A5000487327 @default.
• W3143861333 creator A5000736625 @default.
• W3143861333 creator A5000854101 @default.
• W3143861333 creator A5001093071 @default.
• W3143861333 creator A5001476689 @default.
• W3143861333 creator A5002619300 @default.
• W3143861333 creator A5002670653 @default.
• W3143861333 creator A5002953964 @default.
• W3143861333 creator A5003108742 @default.
• W3143861333 creator A5003134810 @default.
• W3143861333 creator A5003518191 @default.
• W3143861333 creator A5003917342 @default.
• W3143861333 creator A5004396415 @default.
• W3143861333 creator A5004430760 @default.
• W3143861333 creator A5004707457 @default.
• W3143861333 creator A5005047733 @default.
• W3143861333 creator A5005674492 @default.
• W3143861333 creator A5005679818 @default.
• W3143861333 creator A5006691848 @default.
• W3143861333 creator A5006788316 @default.
• W3143861333 creator A5006801295 @default.
• W3143861333 creator A5006918127 @default.
• W3143861333 creator A5006972246 @default.
• W3143861333 creator A5007019798 @default.
• W3143861333 creator A5007108795 @default.
• W3143861333 creator A5007191682 @default.
• W3143861333 creator A5007250246 @default.
• W3143861333 creator A5007679014 @default.
• W3143861333 creator A5007883489 @default.
• W3143861333 creator A5007956073 @default.
• W3143861333 creator A5008328669 @default.
• W3143861333 creator A5008746806 @default.
• W3143861333 creator A5009041224 @default.
• W3143861333 creator A5009687195 @default.
• W3143861333 creator A5009780023 @default.
• W3143861333 creator A5009950983 @default.
• W3143861333 creator A5010037649 @default.
• W3143861333 creator A5010192111 @default.
• W3143861333 creator A5010539701 @default.
• W3143861333 creator A5010632581 @default.
• W3143861333 creator A5010686458 @default.
• W3143861333 creator A5010735259 @default.
• W3143861333 creator A5011908933 @default.
• W3143861333 creator A5012505816 @default.
• W3143861333 creator A5012611077 @default.
• W3143861333 creator A5012778202 @default.
• W3143861333 creator A5013320839 @default.
• W3143861333 creator A5013559758 @default.
• W3143861333 creator A5013768801 @default.
• W3143861333 creator A5013922621 @default.
• W3143861333 creator A5014118097 @default.
• W3143861333 creator A5014193619 @default.
• W3143861333 creator A5014304966 @default.
• W3143861333 creator A5014547733 @default.
• W3143861333 creator A5014913522 @default.
• W3143861333 creator A5015261103 @default.
• W3143861333 creator A5015755346 @default.
• W3143861333 creator A5015857333 @default.
• W3143861333 creator A5015984141 @default.
• W3143861333 creator A5016151254 @default.
• W3143861333 creator A5016251105 @default.
• W3143861333 creator A5016361642 @default.
• W3143861333 creator A5017067621 @default.
• W3143861333 creator A5017265179 @default.
• W3143861333 creator A5017830753 @default.
• W3143861333 creator A5017989793 @default.
• W3143861333 creator A5018473125 @default.
• W3143861333 creator A5018586814 @default.
• W3143861333 creator A5018797520 @default.
• W3143861333 creator A5019106560 @default.
• W3143861333 creator A5019296229 @default.
• W3143861333 creator A5019387588 @default.
• W3143861333 creator A5019446015 @default.
• W3143861333 creator A5019478154 @default.
• W3143861333 creator A5019534535 @default.
• W3143861333 creator A5019540014 @default.
• W3143861333 creator A5019648658 @default.
• W3143861333 creator A5020160942 @default.
• W3143861333 creator A5021433876 @default.
• W3143861333 creator A5021805592 @default.
• W3143861333 creator A5021824433 @default.
• W3143861333 creator A5021964438 @default.
• W3143861333 creator A5022149125 @default.
• W3143861333 creator A5022436032 @default.
• W3143861333 creator A5022643791 @default.
• W3143861333 creator A5022790446 @default.
• W3143861333 creator A5022889040 @default.
• W3143861333 creator A5022929126 @default.
• W3143861333 creator A5023018172 @default.
• W3143861333 creator A5023197965 @default.
• W3143861333 creator A5023342298 @default.
• W3143861333 creator A5023472300 @default.

• next