Effect of Multipole Changes on Observables

Choose a Multipole Solution:

Choose a Reaction Type:

Choose Observable:

 (DSG ) (P   ) (S  ) (T  ) (G   ) (H  )
 (E   ) (F   ) (Ox ) (Oz ) (Cx  ) (Cz ) 
 (Tx )  (Tz  ) (Lx ) (Lz )  

Enter one of the above observable types:

Enter Energy Variable:

Value of Energy Variable:

Multipoles can be changed in magnitude by millifermis and the
effect shown on a plot of the observable. The phase is kept fixed
to avoid a violation of Watson's theorem, where valid. To select
a multipole and its change, use the following notation:

MJL: M = 1 for  E(I=3/2)  J = 1 for J=L-1/2  L = angular momentum
         2 for  M(I=3/2)      2 for J=L+1/2      of outgoing pi-N
         3 for pE(I=1/2)
         4 for pM(I=1/2)
         5 for nE(I=1/2)
         6 for nM(I=1/2)

Example: The dominant M1 multipole (I=3/2) is MJL = 221

  o  Results are colour coded for changes of a positive or negative sign
  o  Data references may be found using the "Observables" page
  o  The conversion between millifermis and 10**(-3)/m_pi is: 
     197.33 MeV fm / 139.57 MeV ( or approximately sqrt(2) )    

MJL value for Multipole:

Multipole Change (in millifermis):

....[Lower]........[Upper]...Range of Plotted Data