Daniele Fargion. Uhecr by lightest nuclei in Nearby Universe and its parasite neutrino trace


Natural Sciences / Physics / Astrophysics

Submitted on: Apr 03, 2012, 04:21:57

Description: UHECR mystery survived first Auger claims of AGN connection within a GZK (100 Mpc size) Universe. Last 2010 UHECR maps and compositions do show a much lower correlation with AGN SuperGalactic maps and with protons (the two main ingredient of that claim). The three main AUGER results that survived are: an embarrassing absence of Virgo cluster UHECR, somehow an expected signal; a steady presence of Cen-A clustering and a remarkable signature of nuclei (not nucleon) composition. We claim that the He-like lightest nuclei may solve most of the puzzle: He UHECR cannot arrive from Virgo because light nuclei fragility and opacity; Cen-A UHECR are spread (if He-Li-Be) as much as the observed ones; the light nuclei may fit well Auger composition signature as well as Hires spectra. Future multiplet of half energy UHECR (Eth/Z around 15-30 EeV) must trace in tails overlapping around some of higher UHECR spread.

The Library of Congress (USA) reference page : http://lccn.loc.gov/cn2013300046.

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Daniele_Fargion_UHECR_by_lightest_nuclei.pdf



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