LISTSERV mailing list manager LISTSERV 16.5

Help for VUB-RECOIL Archives


VUB-RECOIL Archives

VUB-RECOIL Archives


VUB-RECOIL@LISTSERV.SLAC.STANFORD.EDU


View:

Message:

[

First

|

Previous

|

Next

|

Last

]

By Topic:

[

First

|

Previous

|

Next

|

Last

]

By Author:

[

First

|

Previous

|

Next

|

Last

]

Font:

Monospaced Font

LISTSERV Archives

LISTSERV Archives

VUB-RECOIL Home

VUB-RECOIL Home

VUB-RECOIL  January 2008

VUB-RECOIL January 2008

Subject:

My list of suggestions for a new production...

From:

Kerstin Tackmann <[log in to unmask]>

Date:

22 Jan 2008 10:58:30 -0800 (PST)Tue, 22 Jan 2008 10:58:30 -0800 (PST)

Content-Type:

TEXT/PLAIN

Parts/Attachments:

Parts/Attachments

TEXT/PLAIN (41 lines)


Hey all,

as promised in the meeting today, here is a list of suggestions for the
new production. All of these are issues that came up during the review of
my analysis (although I phrased some of them in the context of moving to
r22), and I think they equally apply to our Vub analysis.
Some of these are phrased as questions, so we should think about these.

* switch to NN based mu selector (already happened as I understand)

* store the energy/momentum for each charged track on the signal side in
our ntuple (as I said in the meeting, something like this exists for the
neutrals, so this is a matter of expanding this a bit, should be really
easy)

* exclusively reconstruct and tag B->Dlnu events with D->Kpi (the idea
of this was to test for efficiency biases in the soft neutral filter that
we have been building, this is probably a bit more work?)

* investigate whether the cut on neutral energy should be raised (this is
50MeV in r18, I don't know what it is in r22, but this is something we
should look at I think, 50 MeV is quite low)

* store information of vertex probability for the signal side (is this
easy to do, i.e. try to vertex the signal side and store the probability?
the idea was that this could help for bkgd rejection)

* Do we need to look at PID corrections again (when moving to r22)?

* Should we lower the momentum cut for the second lepton? This cut is
there to reject leptons from cascade decays, which have a soft momentum
spectrum, so cutting at 1GeV for these leptons might not be optimal in
terms of rejecting those backgrounds (rather have a lower cut to reject
them more efficiently).

Cheers,
Kerstin


Top of Message | Previous Page | Permalink

Advanced Options


Options

Log In

Log In

Get Password

Get Password


Search Archives

Search Archives


Subscribe or Unsubscribe

Subscribe or Unsubscribe


Archives

March 2010
December 2009
August 2009
January 2009
November 2008
October 2008
September 2008
August 2008
July 2008
June 2008
May 2008
April 2008
March 2008
February 2008
January 2008
November 2007
October 2007
September 2007
August 2007
July 2007
June 2007
May 2007
April 2007
March 2007
February 2007
January 2007
December 2006
November 2006
October 2006
September 2006
August 2006
July 2006
June 2006
May 2006
April 2006
March 2006
February 2006
January 2006
December 2005
November 2005
October 2005
September 2005
August 2005
July 2005
June 2005
May 2005
April 2005
March 2005
February 2005
January 2005
December 2004
November 2004
October 2004
September 2004
August 2004
July 2004
June 2004
May 2004
April 2004
March 2004
February 2004
January 2004
December 2003
November 2003
October 2003
September 2003
August 2003
July 2003
June 2003
May 2003
April 2003
March 2003
February 2003
January 2003
December 2002
November 2002
October 2002
September 2002
August 2002
July 2002
June 2002
May 2002
April 2002
March 2002
February 2002
January 2002
December 2001
November 2001
October 2001

ATOM RSS1 RSS2



LISTSERV.SLAC.STANFORD.EDU

Secured by F-Secure Anti-Virus CataList Email List Search Powered by the LISTSERV Email List Manager

Privacy Notice, Security Notice and Terms of Use