An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

# Erratum: Elastic Rate Coefficients of Li + H_2 collisions in the calibration of a Cold Atom Vacuum Standard

Published

### Author(s)

Constantinos Makrides, Daniel Barker, James A. Fedchak, Julia Scherschligt, Stephen Eckel, Eite Tiesinga

### Abstract

We found an error in our computation of the thermally averaged total rate coefficients for the collision of a room-temperature hydrogen dimer H$_2$ with an ultra-cold lithium sensor atom. We incorrectly accounted for the nuclear spin degeneracy and omitted the factor $1/\sqrt\pi}$ in the normalization over the Boltzmann distribution. Our corrected predictions for the thermally-averaged rate coefficient for a 300K H$_2$ gas and a 1$\mu$K Li gas are $3.13(6) \times 10^-9}$ cm$^3}$/s and $3.18(6) \times 10^-9}$ cm$^3}$/s for H$_2$+$^6$Li and H$_2$+$^7$Li, respectively, where the number in parenthesis is the one-standard-deviation uncertainty in the last significant digit. Moreover, the temperature dependence of the corrected rate coefficients near 300K is significantly smaller than in our original article.
Citation
Physical Review A
Volume
105

## Citation

Makrides, C. , Barker, D. , Fedchak, J. , Scherschligt, J. , Eckel, S. and Tiesinga, E. (2022), Erratum: Elastic Rate Coefficients of Li + H_2 collisions in the calibration of a Cold Atom Vacuum Standard, Physical Review A, [online], https://doi.org/10.1103/PhysRevA.105.039903, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=934440 (Accessed December 9, 2022)
Created March 24, 2022, Updated November 29, 2022