<html><body><div><div>Fantastic news!</div><div>Great job, Pawel!</div><div><br></div><div><br></div> <div> <div> <div dir="ltr"> <font size="2" face="Arial"> <hr size="1"> <b>From:</b> Christian Weiss <weiss@jlab.org><br> <b>To:</b> ee@jlab.org <br> <b>Sent:</b> Friday, June 22, 2012 8:14 PM<br> <b>Subject:</b> [ee] TCS rating -- scientific explanation<br> </font> </div> <br>
<br>The minus sign appears because it is a timelike process:<br><br> DVCS A+<br> TCS A-<br><br>Just like the sign change in the Sivers function between<br>SIDIS and Drell-Yan.<br><br>Where is the gauge link? ;-)<br><br>_______________________________________________<br>ee mailing list<br><a href="mailto:ee@jlab.org">ee@jlab.org</a><br><a href="https://mailman.jlab.org/mailman/listinfo/ee">https://mailman.jlab.org/mailman/listinfo/ee</a><br><br><br> </div> </div> </div></body></html>