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Title: Precision measurement of the weak charge of the proton

Abstract

Large experimental programmes in the fields of nuclear and particle physics search for evidence of physics beyond that explained by current theories. The observation of the Higgs boson completed the set of particles predicted by the standard model, which currently provides the best description of fundamental particles and forces. However, this theory’s limitations include a failure to predict fundamental parameters, such as the mass of the Higgs boson, and the inability to account for dark matter and energy, gravity, and the matter–antimatter asymmetry in the Universe, among other phenomena. Furthermore, these limitations have inspired searches for physics beyond the standard model in the post-Higgs era through the direct production of additional particles at high-energy accelerators, which have so far been unsuccessful.

Authors:
 [1]
  1. Univ. of Zagreb, Zagreb (Croatia). et al.
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Contributing Org.:
[The Jefferson Lab Qweak Collaboration]
OSTI Identifier:
1438370
Report Number(s):
[JLAB-PHY-17-2571; DOE/OR/23177-4233]
[Journal ID: ISSN 0028-0836; PII: 96; TRN: US1900426]
Grant/Contract Number:  
[AC05-06OR23177]
Resource Type:
Accepted Manuscript
Journal Name:
Nature (London)
Additional Journal Information:
[Journal Name: Nature (London); Journal Volume: 557; Journal Issue: 7704]; Journal ID: ISSN 0028-0836
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Androic, D. Precision measurement of the weak charge of the proton. United States: N. p., 2018. Web. doi:10.1038/s41586-018-0096-0.
Androic, D. Precision measurement of the weak charge of the proton. United States. doi:10.1038/s41586-018-0096-0.
Androic, D. Wed . "Precision measurement of the weak charge of the proton". United States. doi:10.1038/s41586-018-0096-0. https://www.osti.gov/servlets/purl/1438370.
@article{osti_1438370,
title = {Precision measurement of the weak charge of the proton},
author = {Androic, D.},
abstractNote = {Large experimental programmes in the fields of nuclear and particle physics search for evidence of physics beyond that explained by current theories. The observation of the Higgs boson completed the set of particles predicted by the standard model, which currently provides the best description of fundamental particles and forces. However, this theory’s limitations include a failure to predict fundamental parameters, such as the mass of the Higgs boson, and the inability to account for dark matter and energy, gravity, and the matter–antimatter asymmetry in the Universe, among other phenomena. Furthermore, these limitations have inspired searches for physics beyond the standard model in the post-Higgs era through the direct production of additional particles at high-energy accelerators, which have so far been unsuccessful.},
doi = {10.1038/s41586-018-0096-0},
journal = {Nature (London)},
number = [7704],
volume = [557],
place = {United States},
year = {2018},
month = {5}
}

Journal Article:
Free Publicly Available Full Text
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Citation Metrics:
Cited by: 25 works
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Figures / Tables:

Figure 1 Figure 1: | Schematic showing the basic features of parity-violating electron scattering from the proton, with its three constituent quarks. The incoming electron with helicity +1 scatters away from the plane of the “PV mirror”. The image in the PV mirror shows the incoming electron with the opposite helicity −1,more » and instead of scattering into the plane of the PV mirror (as it would in a real mirror), it scatters out of the plane of the PV mirror. The dominant EM interaction, mediated by the photon (blue wave), conserves parity. The weak interaction, mediated by the neutral Z0 boson (dashed red line), violates parity. The weak interaction is studied experimentally by exploiting PV through reversals of the incident beam helicity, which mimic the PV mirror “reflection”.« less

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    Works referencing / citing this record:

    Nuclear-spin dependent parity violation in optically trapped polyatomic molecules
    journal, July 2019


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