Available energy (particle collision)

For the concept in classical thermodynamics, see Exergy.

In particle physics, the available energy is the energy in a particle collision available to produce new particles from the energy of the colliding particles.[1][2]

In early accelerators both colliding particles usually survived after the collision, so the available energy was the total kinetic energy of the colliding particles in the center-of-momentum frame before the collision. In modern accelerators particles collide with their anti-particles and can annihilate, so the available energy includes both the kinetic energy and the rest energy of the colliding particles in the center-of-momentum frame before the collision.[3]

  1. ^ Dao, F. T.; Whitmore, J. (1973-09-17). "Study of neutral-charged particle correlations in high energy collisions". Physics Letters B. 46 (2): 252–256. doi:10.1016/0370-2693(73)90697-7. ISSN 0370-2693.
  2. ^ Mishra, Aditya Nath; Sahoo, Raghunath; Sarkisyan, Edward K. G.; Sakharov, Alexander S. (2014-11-18). "Effective-energy budget in multiparticle production in nuclear collisions". The European Physical Journal C. 74 (11): 3147. arXiv:1405.2819. doi:10.1140/epjc/s10052-014-3147-1. ISSN 1434-6052.
  3. ^ University Physics with Modern Physics, 15th Edition, ISBN 978-0-135-15955-2 by Hugh D. Young and Roger A. Freedman, published by Pearson Education © 2020. P.1518