" 
 ::Thanks for the quick answer. I find the  structure quite elegant (I said and co because I went through the complete structure of templates behind), but {{SubatomicParticle|Strange AntiB0}} shows  and gives html code  
 
     B 
      
        0 
        s 
      
 
 ::that is read B0s by a text browser like lynx (the anti information disappears), but I don't know exactly how browsers for blind people work 
 ::Actually I think no automatic acessibility software would detect that, but the French accessibility project sounded sensitive to the use of  and