Hi, Ian, The "presence" of global orbital angular momentum in non-central AuAu collisions at RHIC is based on an assumption that "a partonic _system_ is formed immediately after the initial collision, interactions among the produced partons will lead to the formation of QGP with both transverse and longitudinal collective motion". As Flemming pointed out, estimating a global angular momentum is not a trivial matter. See nucl-th/0705.2852 and references therein for some discussions on the issue. JH Ian Bearden wrote: > Hi Michael, > I don't understand why one would talk about angular momentum at all in > these collisions. > At the energies under consideration, aren't the collisions essentially > between partons with > zero impact parameter? That is to say, the spectators are just that. > Am I missing something? > cheers, > Ian > On Nov 7, 2007, at 1:38 AM, Flemming Videbaek wrote: > > >> Hi Michael, >> >> As we talked about I think this should be a brahms abstract as you >> have done now. It really relies on 'unpublished' brahms data. I >> do though think the last couple of sentences promises too much. I >> suggest you point out >> i) that additional data with different B is needed i.e. lower >> energies, included low-energy RHIC running >> and >> ii) The angular momentum content in non-central collisions is not >> really well determined (in contract to your last but 3 sentence). >> I just propose to be a bit careful with promises. >> >> regards >> Flemming >> >> -------------------------------------------- >> Flemming Videbaek >> Physics Department >> Bldg 510-D >> Brookhaven National Laboratory >> Upton, NY11973 >> >> phone: 631-344-4106 >> cell: 631-681-1596 >> fax: 631-344-1334 >> e-mail: videbaek @ bnl gov >> ----- Original Message ----- >> From: "Michael Murray" <mjmurray_at_ku.edu> >> To: "brahms-l" <brahms-l_at_lists.bnl.gov> >> Sent: Tuesday, November 06, 2007 2:54 PM >> Subject: [Brahms-l] qm08/Hawking abstract >> >> >> >>> Dear Friends, >>> after some useful feed-back here is a new abstract on >>> Hawking radiation. >>> >> -------------------------------------------------------------------------------- >> >> >> >>> Michael >>> >>> >>> >> -------------------------------------------------------------------------------- >> >> >> >>> _______________________________________________ >>> Brahms-l mailing list >>> Brahms-l_at_lists.bnl.gov >>> https://lists.bnl.gov/mailman/listinfo/brahms-l >>> >>> >> _______________________________________________ >> Brahms-l mailing list >> Brahms-l_at_lists.bnl.gov >> https://lists.bnl.gov/mailman/listinfo/brahms-l >> >> > > _______________________________________________ > Brahms-l mailing list > Brahms-l_at_lists.bnl.gov > https://lists.bnl.gov/mailman/listinfo/brahms-l > _______________________________________________ Brahms-l mailing list Brahms-l_at_lists.bnl.gov https://lists.bnl.gov/mailman/listinfo/brahms-lReceived on Wed Nov 07 2007 - 09:38:35 EST
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