- #1

rwooduk

- 762

- 59

**The TOTAL energy of a pion is given, no other information is given so we don't know how fast it is moving, is it possible to calculate its mass? I'm assuming it's relativistic and we need GAMMA (the lorentz factor)**

Also if E is it's total energy what would it's kinetic energy be? wouldn't its kinetic energy be its total energy?

Also if E is it's total energy what would it's kinetic energy be? wouldn't its kinetic energy be its total energy?

Thanks in advance for any help on this, I've been going round and round in circles.