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Lubos Motl
Sep5-04, 05:27 PM
<jabberwocky><div class="vbmenu_control"><a href="jabberwocky:;" onClick="newWindow=window.open('','usenetCode','toolbar=no, location=no,scrollbars=yes,resizable=yes,status=no ,width=650,height=400'); newWindow.document.write('<HTML><HEAD><TITLE>Usenet ASCII</TITLE></HEAD><BODY topmargin=0 leftmargin=0 BGCOLOR=#F1F1F1><table border=0 width=625><td bgcolor=midnightblue><font color=#F1F1F1>This Usenet message\'s original ASCII form: </font></td></tr><tr><td width=449><br><br><font face=courier><UL><PRE>After some time, I randomly opened the entry "Superstring" on Wikipedia\n\nhttp://en.wikipedia.org/wiki/Superstring\n\nand the first link under "See also" is "Centauro event". Whoever added it,\nit\'s interesting. So I learned that Centauro events represent a puzzle in\ncosmic ray physics and some Greek and Russian physicists claim that they\ncould be small black holes from large dimension scenarios, e.g.\n\nhttp://arxiv.org/abs/hep-ph/0311318\n\nHas anyone knowledge or an opinion about it? Best, Lubos\n___________________________________________ ___________________________________\nE-mail: lumo@matfyz.cz fax: +1-617/496-0110 Web: http://lumo.matfyz.cz/\neFax: +1-801/454-1858 work: +1-617/384-9488 home: +1-617/868-4487 (call)\n^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n\n\n</UL></PRE></font></td></tr></table></BODY><HTML>');"> <IMG SRC=/images/buttons/ip.gif BORDER=0 ALIGN=CENTER ALT="View this Usenet post in original ASCII form">&nbsp;&nbsp;View this Usenet post in original ASCII form </a></div><P></jabberwocky>After some time, I randomly opened the entry "Superstring" on Wikipedia

http://en.wikipedia.org/wiki/Superstring

and the first link under "See also" is "Centauro event". Whoever added it,
it's interesting. So I learned that Centauro events represent a puzzle in
cosmic ray physics and some Greek and Russian physicists claim that they
could be small black holes from large dimension scenarios, e.g.

http://arxiv.org/abs/http://www.arxiv.org/abs/hep-ph/0311318

Has anyone knowledge or an opinion about it? Best, Lubos
__{_______________________________________________ _____________________________}
E-mail: lumo@matfyz.cz fax: +1-617/496-0110 Web: http://lumo.matfyz.cz/
eFax: +1-801/454-1858 work: +1-617/384-9488 home: +1-617/868-4487 (call)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Thomas Dent
Sep7-04, 07:11 AM
<jabberwocky><div class="vbmenu_control"><a href="jabberwocky:;" onClick="newWindow=window.open('','usenetCode','toolbar=no, location=no,scrollbars=yes,resizable=yes,status=no ,width=650,height=400'); newWindow.document.write('<HTML><HEAD><TITLE>Usenet ASCII</TITLE></HEAD><BODY topmargin=0 leftmargin=0 BGCOLOR=#F1F1F1><table border=0 width=625><td bgcolor=midnightblue><font color=#F1F1F1>This Usenet message\'s original ASCII form: </font></td></tr><tr><td width=449><br><br><font face=courier><UL><PRE>Lubos Motl &lt;motl@feynman.harvard.edu&gt;\n\n&gt; (...) Centauro events represent a puzzle in\n&gt; cosmic ray physics and some Greek and Russian physicists claim that they\n&gt; could be small black holes from large dimension scenarios, e.g.\n&gt;\n&gt; http://arxiv.org/abs/hep-ph/0311318\n&gt;\n&gt; Has anyone knowledge or an opinion about it? Best, Lubos\n&gt;\n\nAs one can read in the paper, even the events themselves are debated,\nsince they are not seen consistently at all experiments.\n\nIt seems a quite eccentric topic, given the complexity of the physics\nunderlying any of the explanations and the doubtful nature of\nobservations. If (if!) I were looking to prove low scale string models\nI would not look at Centauros first, they would be at best a small\npiece of corroboration to what "should" be found at LHC.\n\nThomas\n\n</UL></PRE></font></td></tr></table></BODY><HTML>');"> <IMG SRC=/images/buttons/ip.gif BORDER=0 ALIGN=CENTER ALT="View this Usenet post in original ASCII form">&nbsp;&nbsp;View this Usenet post in original ASCII form </a></div><P></jabberwocky>Lubos Motl <motl@feynman.harvard.edu>

> (...) Centauro events represent a puzzle in
> cosmic ray physics and some Greek and Russian physicists claim that they
> could be small black holes from large dimension scenarios, e.g.
>
> http://arxiv.org/abs/http://www.arxiv.org/abs/hep-ph/0311318
>
> Has anyone knowledge or an opinion about it? Best, Lubos
>

As one can read in the paper, even the events themselves are debated,
since they are not seen consistently at all experiments.

It seems a quite eccentric topic, given the complexity of the physics
underlying any of the explanations and the doubtful nature of
observations. If (if!) I were looking to prove low scale string models
I would not look at Centauros first, they would be at best a small
piece of corroboration to what "should" be found at LHC.

Thomas