[G12] new secondary beam observation

[John Price]

True, but since our target is much smaller than that, that's not really
a factor for us.  :)

John

On Mon, 2018-03-05 at 19:09 +0000, Amaryan, Moskov wrote:
> Hi John, 
> 
> 
> The incoming particle could be also K_L, which will survive for much
> longer time, as c\tau ~ 15m.
> 
> 
> Best regards,
> Moskov.
> 
> Prof. Moskov Amaryan
> Department of Physics
> Old Dominion University
> Norfolk, Virginia
> 
> 
> phone:+1-757-683-4614
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> On Mar 5, 2018, at 1:16 PM, John Price <jprice at csudh.edu> wrote:
> 
> > Hi Moskov:
> > 
> > This plot (the one I sent out just now) has completely revamped my
> > research program here.  I'm now interested in looking into basically
> > anything I can do with a beam *other* than a photon or an electron.
> >  
> > 
> > So, yeah.  It's on the list.  A K_s will travel something like 2-3
> > cm
> > before decaying (c-tau=2.7cm), which is comparable to the mean path
> > it
> > will have through the target before leaving out of the cylindrical
> > wall.
> > This gives us a reasonable chance of seeing it do something
> > interesting
> > other than decay.
> > 
> > Now I just need to find 6-7 more students...  :)
> > 
> > John
> > 
> > On Mon, 2018-03-05 at 18:11 +0000, Amaryan, Moskov wrote:
> > > Hi John, 
> > > 
> > > 
> > > It is definitely very interesting result. Could you also look at
> > > final
> > > state K_s(\pi^+\pi^-) p and reconstruct the initial K^0?
> > > 
> > > 
> > > Best regards,
> > > Moskov.
> > > 
> > > Prof. Moskov Amaryan
> > > Department of Physics
> > > Old Dominion University
> > > Norfolk, Virginia
> > > 
> > > 
> > > phone:+1-757-683-4614
> > > 
> > > 
> > > 
> > > 
> > > 
> > > 
> > > 
> > > 
> > > 
> > > 
> > > On Mar 5, 2018, at 12:59 PM, John Price <jprice at csudh.edu> wrote:
> > > 
> > > > Hi all:
> > > > 
> > > > It occurs to me that, if we can observe Lambda-proton elastic
> > > > scattering
> > > > in g12, we should also be able to see something easier like
> > > > proton-proton scattering.  I looked over the data again,
> > > > requiring
> > > > only
> > > > two protons in the final state, and plotted the missing mass in
> > > > "X p
> > > > -->
> > > > p p".  The attached resulting plot has approximately 1.2 million
> > > > events
> > > > in the peak above background.
> > > > 
> > > > We don't have a g12 meeting this week, but I thought y'all might
> > > > like to
> > > > see this.  My life is getting interesting...
> > > > 
> > > > John
> > > > 
> > > 
> > > 
> 
> 
-- 
John W. Price
Professor and Chair, CSUDH Department of Physics
Coordinator, Science, Mathematics, and Technology Program
Director, Office of Undergraduate Research, Scholarship, and Creative
Activity
310-243-3403