# What happens to kinetic energy in annihilation?

**URL:** <https://boards.straightdope.com/t/what-happens-to-kinetic-energy-in-annihilation/769833>\
**Category:** Factual Questions\
**Created:** [October 27, 2016, 9:51am UTC](https://boards.straightdope.com/t/what-happens-to-kinetic-energy-in-annihilation/769833 "2016-10-27T09:51:54Z")\
**Posts on this page:** 2\
**Page:** 2

<div class="post-metadata">

**Author:** ![Chronos](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/chronos/32/134_2.png) [@Chronos](https://boards.straightdope.com/u/Chronos)\
**Post date:** [October 28, 2016, 12:09am UTC](https://boards.straightdope.com/t/what-happens-to-kinetic-energy-in-annihilation/769833/21 "2016-10-28T00:09:23Z")

</div>

Well, you’d have a very hard time producing neutral hadrons, and nearly as tough a time producing neutrinos, unless your energies were up near the mass of the Z. But yeah, it’s possible.

---

<div class="post-metadata">

**Author:** ![Pasta](https://avatars.discourse-cdn.com/v4/letter/p/ecccb3/32.png) [@Pasta](https://boards.straightdope.com/u/Pasta)\
**Post date:** [October 28, 2016, 1:49am UTC](https://boards.straightdope.com/t/what-happens-to-kinetic-energy-in-annihilation/769833/22 "2016-10-28T01:49:34Z")

</div>

> [@Chronos](#):
>
> Well, you’d have a very hard time producing neutral hadrons, and nearly as tough a time producing neutrinos, unless your energies were up near the mass of the Z. But yeah, it’s possible.

I wouldn’t say “it’s possible” but rather “it’s exactly the thing that happens under OP’s conditions”. Neutrinos require higher energies than you’d find around your house, but so does everything else outside of photons, so as long as you allow accelerating the particles (per the OP), neutrinos are in the game as much as the rest. And as long as you’re producing hadrons, neutral hadrons are in the game as much as charged hadrons.

[Previous page](https://boards.straightdope.com/t/what-happens-to-kinetic-energy-in-annihilation/769833.md?page=1)