From nwg-admin@nwg.phy.bnl.gov Sat Oct 11 15:09:42 2003 Status: RO X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["1487" "Saturday" "11" "October" "2003" "15:08:12" "-0400" "Milind Diwan" "diwan@bnlku1.phy.bnl.gov" nil "62" "[Nwg] plots" "^Subject:" nil nil "10" nil nil nil nil nil] nil) Return-path: Envelope-to: diwan@bnlku1.phy.bnl.gov Received: from smtpgw1.sec.bnl.local ([192.168.1.45] helo=smtpgw1.bnl.gov) by bnlku1 with esmtp (Exim 3.36 #1 (Debian)) id 1A8P7W-0002sr-00 for ; Sat, 11 Oct 2003 15:09:42 -0400 Received: from minos.phy.bnl.gov ([130.199.36.108]) by smtpgw1.bnl.gov with esmtp (Exim 3.36 #1 ) id 1A8P6t-0001iv-00; Sat, 11 Oct 2003 15:09:03 -0400 Received: from localhost ([127.0.0.1] helo=minos.phy.bnl.gov) by minos.phy.bnl.gov with esmtp (Exim 3.36 #1 (Debian)) id 1A8P6s-0003Py-00; Sat, 11 Oct 2003 15:09:02 -0400 Received: from smtpgw1.sec.bnl.local ([192.168.1.45] helo=smtpgw1.bnl.gov) by minos.phy.bnl.gov with esmtp (Exim 3.36 #1 (Debian)) id 1A8P68-0003Pm-00 for ; Sat, 11 Oct 2003 15:08:16 -0400 Received: from bnlku1.phy.bnl.gov ([130.199.36.3] helo=bnlku1) by smtpgw1.bnl.gov with esmtp (Exim 3.36 #1 ) id 1A8P66-0001gZ-00; Sat, 11 Oct 2003 15:08:14 -0400 Received: from diwan by bnlku1 with local (Exim 3.36 #1 (Debian)) id 1A8P64-0002sH-00; Sat, 11 Oct 2003 15:08:12 -0400 Message-ID: <16264.21788.759680.347736@bnlku1.phy.bnl.gov> Errors-To: nwg-admin@nwg.phy.bnl.gov Precedence: bulk List-Unsubscribe: , List-Id: BNL Neutrino Working Group mailing list. List-Post: List-Help: List-Subscribe: , List-Archive: Subject: [Nwg] plots From: Milind Diwan To: nwg@nwg.phy.bnl.gov, jsberg@bnl.gov Date: Sat, 11 Oct 2003 15:08:12 -0400 Sender: nwg-admin@nwg.phy.bnl.gov X-Mailer: VM 6.92 under 21.4 (patch 4) "Artificial Intelligence" XEmacs Lucid X-BNL-MailScanner: Found to be clean, Found to be clean X-BeenThere: nwg@nwg.phy.bnl.gov X-Mailman-Version: 2.0.8 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=us-ascii Dear Sirs: Here are some plots and comparisons talked about in last week's neutrino meeting. http://nwg.phy.bnl.gov/~diwan/nwg/nufact/nufact.pdf (I have enlarged the axis and label sizes so that they are more readable. ) New plots are on pages 7 and 8. Page 7: shows the number of events from a muon (left) or anti-electron (right) neutrino at 4 specific energies. The number of events is plotted against the energy of the mu- that produced the neutrino. the plot is for unpolarized mu- with 1.e20 decays and 1 kT detector located 2900 km away. the 4 specific energies are 9.4 GeV ( this is pi ) 4.7 GeV ( this is the first oscillation node pi/2) 1.6 GeV (second node 3pi/2) 0.94 GeV (third node at 5pi/2) as you can see there is a optimum at at muon energies of about twice the target neutrino energy. But the event rate for low energies is so miserable that I don't know if it is worth it. page 8: Has the comparison of nu_mu flux from a regular wide band beam from 28 GeV protons and the neutrino factory beam. For this plot I have assumed that 1 muon will be collected for 6 protons. This plot is in flux (not event counts) We need to chew on this plot for a while to draw conclusions. regards, Milind _______________________________________________ Nwg mailing list Nwg@nwg.phy.bnl.gov http://nwg.phy.bnl.gov/mailman/listinfo/nwg