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Event shape observables

From Wikipedia, the free encyclopedia

In high energy physics, event shapes observables are quantities used to characterize the geometry of the outcome of a collision between high energy particles in a collider. Specifically, event shapes observables quantify the general pattern traced by the trajectories of the particles resulting from the collision.[1][2]

The most common event shape observables include:

  • The sphericity;
  • The aplanarity;
  • The C-parameter;
  • The jet broadening.

References

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  1. ^ V. D. Barger, R. J. N. Phillips (1997) “Collider Physics” Frontier in Physics, Addison-Wesley Publishing Company, Inc.
  2. ^ M. Dasgupta and G. P. Salam (2004), Event shapes in e+ e- annihilation and deep inelastic scattering, J. Phys. G 30, R143, preprint