Measurement of the Masses and the Isospin Splitting of Σc Baryons

Abstract

We present the measurement of the invariant masses of the Σc(2455)0/++ baryons, as well as their isospin splitting using the Run I dataset of the LHCb.

Analysis Proponents

Nis Meinert, Roland Waldi

Reviewers

Jolanta Brodzicka, Evelina Gersabeck

Presentations

See the WG database here for the full list.

Analysis note documenting

Draft Date
LHCb-ANA-2016-079_v0.pdf 19/12/2016
LHCb-ANA-2016-079_v1.pdf 20/01/2017
LHCb-ANA-2016-079_v2.pdf 21/02/2017

-- NisMeinert - 2016-12-19

  • LHCb-ANA-2016-079_v2.pdf: We describe the observation of a peaking structure in the lower m(pKpi) sideband for the Sigmac++, as well as its impact on our results (Chapter H.)
Topic attachments
I Attachment History Action Size Date Who Comment
PDFpdf LHCb-ANA-2016-079_v0.pdf r1 manage 4297.2 K 2016-12-19 - 13:39 NisMeinert First draft of the analysis note for the measurement of the masses and isospin splitting of $\Sigma_c$ baryons
PDFpdf LHCb-ANA-2016-079_v1.pdf r1 manage 4332.9 K 2017-01-22 - 15:02 NisMeinert We corrected our results for asym. BW contribution with L=1. We added a small discussion of the respective equations to the Chap. 'Theory - Resolution of Invariant Masses'. The correction is outlined in Chap. 'Systematic Uncertainties', which was rearranged completely. This chapter is now divided into several sections and contains a summary table of all systematic uncertainties. We also added a small discussion about the contribution of asymmetries coming from third order terms in the parabola fit. Furthermore, we fixed spelling issues (e.g. the scaling of the y-axis of Fig. 3.11).
PDFpdf LHCb-ANA-2016-079_v2.pdf r1 manage 4374.7 K 2017-02-21 - 18:29 NisMeinert We added a description of the impact of a peaking structure in the lower m(pKpi) sideband for the Sigmac++ on our results (Chapter H.)
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Topic revision: r3 - 2017-02-21 - NisMeinert
 
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