Muon Compton wavelength = 1.173 444 110 × 10⁻¹⁴ m

Name: Muon Compton wavelength — CODATA 2022 value
Creator: NIST

Value: 1.173 444 110 × 10⁻¹⁴
Unit: m
Uncertainty: 0.000 000 026 × 10⁻¹⁴
Copy-ready: 1.173444110e-14

Compton wavelength of the muon, λ = h/(mc): the wavelength of a photon whose energy equals the particle's rest energy.

Below this length the particle cannot be treated as a classical point; it also sets the wavelength shift in Compton scattering. The reduced form ƛ = λ/2π is listed beneath.

The same quantity, other ways NIST lists it

Quantity (NIST name)	Value	Unit	Uncertainty
Reduced muon Compton wavelength	1.867 594 306 × 10⁻¹⁵	m	0.000 000 042 × 10⁻¹⁵

NIST, Fundamental Physical Constants — Complete Listing (2022 CODATA adjustment), retrieved 2026-07-26.

Compton wavelengths, radii and cross sections

Alpha particle rms charge radius Deuteron rms charge radius Muon Compton wavelength Neutron Compton wavelength Proton Compton wavelength Proton rms charge radius Tau Compton wavelength Thomson cross section

Link to or cite this value

Link from a web page

Plain HTML for any page that accepts markup.

<a href="https://usephysics.com/reference/muon-compton-wavelength">Muon Compton wavelength — 1.173 444 110 × 10−14 m — UsePhysics</a>

Link from Markdown

For READMEs, wikis and notes.

[Muon Compton wavelength — 1.173 444 110 × 10−14 m — UsePhysics](https://usephysics.com/reference/muon-compton-wavelength)

Cite it in a document

Replace [date] with the day you consulted the page. The line credits NIST/CODATA for the values.

UsePhysics. "Muon Compton wavelength — 1.173 444 110 × 10−14 m." UsePhysics.com. https://usephysics.com/reference/muon-compton-wavelength. Value from the 2022 CODATA adjustment (NIST). Accessed [date].