Weak equivalence principle violation for mixed scalar particles
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F23%3A00371919" target="_blank" >RIV/68407700:21340/23:00371919 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1140/epjc/s10052-023-12291-3" target="_blank" >https://doi.org/10.1140/epjc/s10052-023-12291-3</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epjc/s10052-023-12291-3" target="_blank" >10.1140/epjc/s10052-023-12291-3</a>
Alternative languages
Result language
angličtina
Original language name
Weak equivalence principle violation for mixed scalar particles
Original language description
We investigate the non-relativistic limit of the Klein-Gordon equation for mixed scalar particles and show that, in this regime, one unavoidably arrives at redefining the particle's inertial mass. This happens because, in contrast to the case when mixing is absent, the antiparticle sector contribution cannot be neglected for particles with definite flavor. To clearly demonstrate this feature, we adopt the Feshbach-Villars formalism for Klein-Gordon particles. Furthermore, within the same framework, we also demonstrate that, in the presence of a weak gravitational field, the mass parameter that couples to gravity (gravitational mass) does not match the effective inertial mass. This, in turn, implies a violation of the weak equivalence principle. Finally, we prove that the Bargmann's superselection rule, which prohibits oscillating particles on the basis of the Galilean transformation, is incompatible with the non-relativistic limit of the Lorentz transformation and hence does not collide with the results obtained.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10303 - Particles and field physics
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
European Physical Journal C
ISSN
1434-6044
e-ISSN
1434-6052
Volume of the periodical
83
Issue of the periodical within the volume
12
Country of publishing house
DE - GERMANY
Number of pages
10
Pages from-to
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UT code for WoS article
001126757800008
EID of the result in the Scopus database
2-s2.0-85179626422