= release note : version 0.7.2-b =

== bhabhas with associated photons == 


The possibility of reading a file '''bhabha_photon.ini''' of photons associated with bhabha has been added. The used photons (from used bhabhas) are saved in a fle '''bhphoton_prod.dat''', the boosted photons are saved in : '''bhphotons.dat'''

The (ASCII) format of ''bhabha_photon.ini''' is : 
{{{
px  py  pz  energy
}}}
The (ASCII) format of both '''bhphoton_prod.dat''' and ''bhphotons.dat''' is : 

{{{
 index of photon  index_of_bhabha_to_which_the_photon_is_associated energy px py pz 
}}}

== modifications of files for bhabhas == 

from now on, the format of '''bhabha.ini''' is :

{{{
 px1  py1  pz1 e1  px2  py2  pz2  e2  number_of_associated_photons
}}}

for '''bhabha_prod.dat'''
rank1_index mother1_en e1 vx1 vy1 vz1 rank2_index mother2_en e2 vx2 vy2 vz2 umber_of_associated_photons
}}}

== modifications of files for secondaries == 

the positions x,y,z have been suppressed