Urs Schreiber
Jun9-04, 11:54 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>Some TWF\'s ago John Baez talked about the difficulties to deal with\nsuperstring amplitudes at higher loops and the open question whether the\nsuperstring is finite (order-by-order). In\nhttp://math.ucr.edu/home/baez/week195.html it says:\n\n> I hope the techniques they devised for the 2-loop case speed up progress\n> on higher-loop amplitudes! It would be nice to know if superstring theory\n> really lives up to its promise of finiteness.\n\nNathan Berkovits now claims to have a proof that superstring scattering\namplitudes are finite order-by-order in perturbation theory. See section 6.2\nof\n\nNathan Berkovits:\n\nMultiloop Amplitudes and Vanishing Theorems using the Pure Spinor Formalism\nfor the Superstring\n\nhep-th/0406055\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"> View this Usenet post in original ASCII form </a></div><P></jabberwocky>Some TWF's ago John Baez talked about the difficulties to deal with
superstring amplitudes at higher loops and the open question whether the
superstring is finite (order-by-order). In
http://math.ucr.edu/home/baez/week195.html it says:
> I hope the techniques they devised for the 2-loop case speed up progress
> on higher-loop amplitudes! It would be nice to know if superstring theory
> really lives up to its promise of finiteness.
Nathan Berkovits now claims to have a proof that superstring scattering
amplitudes are finite order-by-order in perturbation theory. See section 6.2
of
Nathan Berkovits:
Multiloop Amplitudes and Vanishing Theorems using the Pure Spinor Formalism
for the Superstring
http://www.arxiv.org/abs/hep-th/0406055
superstring amplitudes at higher loops and the open question whether the
superstring is finite (order-by-order). In
http://math.ucr.edu/home/baez/week195.html it says:
> I hope the techniques they devised for the 2-loop case speed up progress
> on higher-loop amplitudes! It would be nice to know if superstring theory
> really lives up to its promise of finiteness.
Nathan Berkovits now claims to have a proof that superstring scattering
amplitudes are finite order-by-order in perturbation theory. See section 6.2
of
Nathan Berkovits:
Multiloop Amplitudes and Vanishing Theorems using the Pure Spinor Formalism
for the Superstring
http://www.arxiv.org/abs/hep-th/0406055