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I de-Broglie Wavelength of a captured electron?

  1. Feb 9, 2018 #1
    For a proton to capture an electron to form a neutron and a neutrino (assumed massless), the
    electron must have some minimum energy. For such an electron,how can the de-Broglie wavelength be found out?
     
  2. jcsd
  3. Feb 9, 2018 #2

    mfb

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    Calculate the electron energy, calculate its momentum, calculate its de Broglie wavelength.

    Is this a homework question?
     
  4. Feb 9, 2018 #3
    Nope.I just came across this question.It kind of intrigued me.With such a minimal information,how can you find out the wavelength?
     
  5. Feb 9, 2018 #4

    mfb

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    With the steps I described.
    Conservation of energy and a few basic kinematic equations.
     
  6. Feb 11, 2018 #5

    jtbell

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    Hint: under what circumstances does a neutron + neutrino have the smallest possible energy?

    (to a very good approximation, at least)
     
  7. Feb 13, 2018 at 2:32 AM #6
    Please the answer?
     
  8. Feb 13, 2018 at 1:20 PM #7

    ChrisVer

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    When is this [itex]e p \rightarrow n \nu_e[/itex] possible?
     
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