alejandro.rivero
Jun27-04, 05:57 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>The first intuitive answer is negative. For low momentum exchange,\naround some hundreds of KeV, the propagator of W can be approached\nsimply with a constant M_w and the only effect is that this mass\ndivides the electroweak constant to produce Fermi constant. Bun on the\nother hand low momentum implies that the virtual W has a big\nindeterminacy radius and it could react to nuclei as if it were a\nsingle particle (well, it could be. I have claimed the same for\nexternal nucleons in the Lamb\'s balance, and the audience has not\nbeen, er, enthusiatic)\n\nAnyway, now, lets check the experiments: look at the plot uploaded in\nphysicforums,\nhttp://www.physicsforums.com/attachment.php?attachmentid=1095\n\nIt is an histogram of NUDAT database showing all the beta- decays\nknown to experimentalists, ordered by bins of equal nuclear mass\nnumber A.\n\nAnd, surprise, the huge first peak happens for a nuclear mass of 81\nGeV.\n\nThis demands for an explanation, doesn\'t it?\n\nAlejandro Rivero\nPS: If the deep link does not work, it is attachment "above.jpg" at\nthe end of thread http://www.physicsforums.com/showthread.php?t=13679\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>The first intuitive answer is negative. For low momentum exchange,
around some hundreds of KeV, the propagator of W can be approached
simply with a constant M_w and the only effect is that this mass
divides the electroweak constant to produce Fermi constant. Bun on the
other hand low momentum implies that the virtual W has a big
indeterminacy radius and it could react to nuclei as if it were a
single particle (well, it could be. I have claimed the same for
external nucleons in the Lamb's balance, and the audience has not
been, er, enthusiatic)
Anyway, now, lets check the experiments: look at the plot uploaded in
physicforums,
http://www.physicsforums.com/attachment.php?attachmentid=1095
It is an histogram of NUDAT database showing all the \beta- decays
known to experimentalists, ordered by bins of equal nuclear mass
number A.
And, surprise, the huge first peak happens for a nuclear mass of 81
GeV.
This demands for an explanation, doesn't it?
Alejandro Rivero
PS: If the deep link does not work, it is attachment "above.jpg" at
the end of thread http://www.physicsforums.com/showthread.php?t=13679
around some hundreds of KeV, the propagator of W can be approached
simply with a constant M_w and the only effect is that this mass
divides the electroweak constant to produce Fermi constant. Bun on the
other hand low momentum implies that the virtual W has a big
indeterminacy radius and it could react to nuclei as if it were a
single particle (well, it could be. I have claimed the same for
external nucleons in the Lamb's balance, and the audience has not
been, er, enthusiatic)
Anyway, now, lets check the experiments: look at the plot uploaded in
physicforums,
http://www.physicsforums.com/attachment.php?attachmentid=1095
It is an histogram of NUDAT database showing all the \beta- decays
known to experimentalists, ordered by bins of equal nuclear mass
number A.
And, surprise, the huge first peak happens for a nuclear mass of 81
GeV.
This demands for an explanation, doesn't it?
Alejandro Rivero
PS: If the deep link does not work, it is attachment "above.jpg" at
the end of thread http://www.physicsforums.com/showthread.php?t=13679