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Experimental status of LNU in B decays in LHCb

by Sean Benson

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Submission summary

Authors (as Contributors): Sean Benson
Submission information
Preprint link: scipost_201901_00044v1
Date submitted: 2019-01-16 01:00
Submitted by: Benson, Sean
Submitted to: SciPost Physics Proceedings
Proceedings issue: The 15th International Workshop on Tau Lepton Physics (Amsterdam, 2018-09)
Ontological classification
Academic field: Physics
  • Quantum Physics
Approach: Experimental


In the Standard Model, the three charged leptons are identical copies of each other, apart from mass differences. Experimental tests of this feature in semileptonic decays of b-hadrons are highly sensitive to New Physics particles which preferentially couple to the 2nd and 3rd generations of leptons. A review of the latest lepton universality tests in semileptonic $b\to c$ transitions at LHCb is reported.

Current status:
Has been resubmitted

Submission & Refereeing History

Resubmission scipost_201901_00044v2 on 18 January 2019

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Submission scipost_201901_00044v1 on 16 January 2019

Reports on this Submission

Anonymous Report 1 on 2019-1-17 (Invited Report)

  • Cite as: Anonymous, Report on arXiv:scipost_201901_00044v1, delivered 2019-01-17, doi: 10.21468/SciPost.Report.794


The provided proceedings give a very clear overview on measurements on lepton flavour non-universality at LHCb. The content is certainly worth to publish. A few minor comments of editorial nature have been provided to the author and are requested to be included.

Requested changes

2nd paragraph first sentence: tau leptons is a challenging at -> either is a challenge or is challenging
2nd paragraph towards the end: “selmileptonic" -> “semilleptonic"; "Run 1 data collected by LHC experiment" -> either "by the LHCb experiment” or “by LHCb”


Sentence after Eq (1): missing comma before respectively
End of next paragraph: missing comma after “(describing the separation of signal decay particles from other decays)”
End of this section: “smallest smallest” -> smallest

“at the time or writing” -> “at the time of writing"

  • validity: -
  • significance: -
  • originality: -
  • clarity: -
  • formatting: -
  • grammar: -

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