Quenching factor measurements of neon nuclei in neon gas

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A90107%2F22%3A00386593" target="_blank" >RIV/68407700:90107/22:00386593 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1103/PhysRevD.105.052004" target="_blank" >https://doi.org/10.1103/PhysRevD.105.052004</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevD.105.052004" target="_blank" >10.1103/PhysRevD.105.052004</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Quenching factor measurements of neon nuclei in neon gas

Popis výsledku v původním jazyce

The NEWS-G collaboration uses spherical proportional counters (SPCs) to search for weakly interacting massive particles (WIMPs). In this paper, we report the first measurements of the nuclear quenching factor in neon gas at 2 bar using an SPC deployed in a neutron beam at the TUNL facility. The energy-dependence of the nuclear quenching factor is modeled using a simple power law: alpha E-nr(beta); we determine its parameters by simultaneously fitting the data collected with the detector over a range of energies. We measured the following parameters in Ne : CH4 at 2 bar: alpha = 0.2801 +/- 0.0050 (fit) +/- 0.0045 (sys) and beta = 0.0867 +/- 0.020 (fit) +/- 0.006 (sys). Our measurements do not agree with expected values from SLUM or Lindhard theory. We demonstrated the feasibility of performing quenching factor measurements at sub-keV energies in gases using SPCs and a neutron beam.

Název v anglickém jazyce

Quenching factor measurements of neon nuclei in neon gas

Popis výsledku anglicky

The NEWS-G collaboration uses spherical proportional counters (SPCs) to search for weakly interacting massive particles (WIMPs). In this paper, we report the first measurements of the nuclear quenching factor in neon gas at 2 bar using an SPC deployed in a neutron beam at the TUNL facility. The energy-dependence of the nuclear quenching factor is modeled using a simple power law: alpha E-nr(beta); we determine its parameters by simultaneously fitting the data collected with the detector over a range of energies. We measured the following parameters in Ne : CH4 at 2 bar: alpha = 0.2801 +/- 0.0050 (fit) +/- 0.0045 (sys) and beta = 0.0867 +/- 0.020 (fit) +/- 0.006 (sys). Our measurements do not agree with expected values from SLUM or Lindhard theory. We demonstrated the feasibility of performing quenching factor measurements at sub-keV energies in gases using SPCs and a neutron beam.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

10304 - Nuclear physics

Projekt

—

Návaznosti

—

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physical Review D

ISSN

2470-0010

e-ISSN

2470-0029

Svazek periodika

105

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

16

Strana od-do

"052004-1"-"052004-16"

Kód UT WoS článku

000787614500002

EID výsledku v databázi Scopus

2-s2.0-85126443732