Measurement of the pi K atom lifetime and the pi K scattering length

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F17%3A00480642" target="_blank" >RIV/61389005:_____/17:00480642 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/17:00480642
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevD.96.052002" target="_blank" >http://dx.doi.org/10.1103/PhysRevD.96.052002</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.96.052002" target="_blank" >10.1103/PhysRevD.96.052002</a>

Result language
angličtina
Original language name
Measurement of the pi K atom lifetime and the pi K scattering length
Original language description
After having announced the statistically significant observation (5.6s) of the new exotic pi K atom, the DIRAC experiment at the CERN proton synchrotron presents the measurement of the corresponding atom lifetime, based on the full pi K data sample: tau = (5.5(-2.8)(+5.0)) x 10(-15) s. By means of a precise relation (approximate to 1%) between atom lifetime and scattering length, the following value for the S-wave isospin-odd pi K scattering length a(0)(-) = 1/3 (a(1/2) - a(3/2)) has been derived: |a(0)(-)| = (0.072(-0.020)(+0.031)) M-pi(-1).
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10304 - Nuclear physics

Project
<a href="/en/project/LG13031" target="_blank" >LG13031: Collaboration of the Czech Republic with CERN</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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