|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'501'711
Articles rated: 2609
19 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Improved limits on Fierz Interference using asymmetry measurements from the UCNA experiment | | Xuan Sun
; E. Adamek
; B. Allgeier
; Y. Bagdasarova
; D. B. Berguno
; M. Blatnik
; T. J. Bowles
; L. J. Broussard
; M. A.-P. Brown
; R. Carr
; S. Clayton
; C. Cude-Woods
; S. Currie
; E. B. Dees
; X. Ding
; B. W. Filippone
; A. García
; P. Geltenbort
; S. Hasan
; K. P. Hickerson
; J. Hoagland
; R. Hong
; A. T. Holley
; T. M. Ito
; A. Knecht
; C.-Y. Liu
; J. Liu
; M. Makela
; R. Mammei
; J. W. Martin
; D. Melconian
; M. P. Mendenhall
; S. D. Moore
; C. L. Morris
; S. Nepal
; N. Nouri
; R. W. Pattie Jr.
; A. Pérez Galván
; D. G. Phillips II
; R. Picker
; M. L. Pitt
; B. Plaster
; D. J. Salvat
; A. Saunders
; E. I. Sharapov
; S. Sjue
; S. Slutsky
; W. Sondheim
; C. Swank
; E. Tatar
; R. B. Vogelaar
; B. VornDick
; Z. Wang
; W. Wei
; J. W. Wexler
; T. Womack
; C. Wrede
; A. R. Young
; B. A. Zeck
; | | Date: |
13 Nov 2019 | | Abstract: | The Ultracold Neutron Asymmetry (UCNA) experiment was designed to measure the
$eta$-decay asymmetry parameter, $A_0$, for free neutron decay. In the
experiment, polarized ultracold neutrons are transported into a decay trap, and
their $eta$-decay electrons are detected with $approx 4pi$ acceptance into
two detector packages which provide position and energy reconstruction. The
experiment also has sensitivity to $b_{n}$, the Fierz interference term in the
neutron $eta$-decay rate. In this work, we determine $b_{n}$ from the energy
dependence of $A_0$ using the data taken during the UCNA 2011-2013 run. In
addition, we present the same type of analysis using the earlier 2010 $A$
dataset. Motivated by improved statistics and comparable systematic errors
compared to the 2010 data-taking run, we present a new $b_{n}$ measurement
using the weighted average of our asymmetry dataset fits, to obtain $b_{n} =
0.066 pm 0.041_{ ext{stat}} pm 0.024_{ ext{syst}}$ which corresponds to a
limit of $-0.012 < b_{n} < 0.144$ at the 90% confidence level. | | Source: | arXiv, 1911.5829 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER