\beamer@slide {eq:pdfpwave}{8} \beamer@slide {LargeRecoilAs}{9} \beamer@slide {Js}{36} \beamer@slide {LargeRecoilAs}{37} \beamer@slide {LargeRecoilAs}{41} \beamer@slide {symmassless}{43} \beamer@slide {eq:pdfpwave}{43}