What can a heavy U(1)(B-L) Z ' boson do to the muon (g-2)(mu) anomaly and to a new Higgs boson mass?
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F21%3A00539474" target="_blank" >RIV/61389005:_____/21:00539474 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1088/1674-1137/abc16a" target="_blank" >https://doi.org/10.1088/1674-1137/abc16a</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1674-1137/abc16a" target="_blank" >10.1088/1674-1137/abc16a</a>
Alternative languages
Result language
angličtina
Original language name
What can a heavy U(1)(B-L) Z ' boson do to the muon (g-2)(mu) anomaly and to a new Higgs boson mass?
Original language description
The minimal U(1)(B-L) extension of the Standard Model (B-L-SM) offers an explanation for neutrino mass generation via a seesaw mechanism, it also offers two new physics states, namely an extra Higgs boson and a new Z' gauge boson. The emergence of a second Higgs particle as well as a new Z' gauge boson, both linked to the breaking of a local U(1)(B-L) symmetry, makes the B-L-SM rather constrained by direct searches in Large Hadron Collider (LHC) experiments. We investigate the phenomenological status of the B-L-SM by confronting the new physics predictions with the LHC and electroweak precision data. Taking into account the current bounds from direct LHC searches, we demonstrate that the prediction for the muon (g - 2)(mu) anomaly in the B-L-SM yields at most a contribution of approximately 8.9 x 10(-12), which represents a tension of 3.28 standard deviations, with the current uncertainty, by means of a Z' boson if its mass is in the range of 6.3 to 6.5 TeV, within the reach of future LHC runs. This means that the B-L-SM, with heavy yet allowed Z' boson mass range, in practice, does not resolve the tension between the observed anomaly in the muon (g - 2)(mu) and the theoretical prediction in the Standard Model. Such a heavy Z' boson also implies that the minimal value for the new Higgs mass is of the order of 400 GeV.
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
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Chinese Physics C
ISSN
1674-1137
e-ISSN
2058-6132
Volume of the periodical
45
Issue of the periodical within the volume
1
Country of publishing house
GB - UNITED KINGDOM
Number of pages
15
Pages from-to
013103
UT code for WoS article
000606026200001
EID of the result in the Scopus database
2-s2.0-85099143965