hw8 - Physics 226 Assignment#8 Wednesday 1 To keep you...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Physics 226 Assignment #8 May 11, 2016 Wednesday, May 25, 2016 1. To keep you practiced with relativistic kinematics. Nucleon resonances with spin 3/2 include the Δ(1232) (with charge states ++, +, 0, and - ), plus similar higher energy resonances, Δ(1600), Δ(1700) and Δ(1920). In each case, the number in parentheses indicates the (approximate) resonance mass (or rest energy) in MeV. When pions of energy E scatter from nucleons (protons and neutrons) in a target at rest in the lab frame, these resonacnes can be produced, e.g., π + N Δ(1232). Each resonance appears as a peak in the total scattering cross-section plotted as a function of the (lab frame) pion energy E . At what energies E do these resonances appear? (We are interested here in approximate results, ignoring isospin breaking. So you can take the nucleon mass to be 940 MeV and the pion mass to be 140 MeV. Your final answers should be given only with two significant figures.) 2. This problem acquaints you with some of the standard terminology used in particle physics. We have used much of this in class. You will need to know that
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern