Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Threshold, proton-proton-collision

  1. May 7, 2013 #1

    I regard a proton-proton collision. (Target at rest.)
    Here accrues a [itex]

    I want to callculate the threshold energy.

    But I think for callculating the threshold I have to know all participant of the product.
    Can i assume, that the protons will not be destroyed?


    (On the other hand I know, that for producing a [itex]K^{+}[/itex], which contains an [itex]\bar{s}[/itex]-quark, due to strangeness-conservation, a proton must be replaced by an [itex]\lambda(1116)[/itex]-hyperon, which contains an s-quark. )

  2. jcsd
  3. May 7, 2013 #2


    User Avatar
    2017 Award

    Staff: Mentor

    Baryon number is conserved, and the proton is the lightest baryon. With two protons in the final state (instead of hyperons), the process requires the weak interaction, it should be much more frequent with enough energy to do s sbar production.
  4. May 18, 2013 #3
    Sorry, but the Kaon reaction you write doesn't conserve electric charge
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Threads - Threshold proton proton Date
B Proton emission equation Jan 22, 2018
I Reaction Q value and threshold energy May 17, 2017
Help needed in Threshold Concepts Apr 5, 2011
Knowledge of threshold Feb 10, 2011
Threshold energy problem May 5, 2010