# Measurement of the relative branching fraction of and decays

Contents:

## Abstract

The decays and are observed in proton-proton collision data at corresponding to an integrated luminosity of collected with the LHCb detector. Their ratio of branching fractions with respect to is measured to be

where the first uncertainties are statistical, the second systematic and the third for decays are due to the uncertainty of the branching fractions of and .

## People involved

### Proponents

Adam Morris(2), Sebastian Neubert(1), Mindaugas Sarpis(1), Marian Stahl(2)

(1) Bonn, (2) CERN

### WG review

Liupan An

Lorenzo Capriotti

Zan Ren

* Commets and answers of the first round - WG_review_round1.pdf

* Commets and answers of the second round - WG_review_round2.pdf

* Commets and answers of the third round - WG_review_round3.pdf

## Draft versions of the Analysis Note

Topic attachments
I Attachment History Action Size Date Who Comment
pdf WG_review_round1.pdf r1 manage 143.3 K 2023-01-16 - 16:43 MarianStahl
pdf WG_review_round2.pdf r1 manage 67.9 K 2023-02-17 - 17:43 MarianStahl
pdf WG_review_round3.pdf r1 manage 58.1 K 2023-02-18 - 23:13 MarianStahl
pdf lcd0k_v1r0.pdf r1 manage 7619.1 K 2021-11-23 - 17:41 MarianStahl
pdf lcd0k_v1r1.pdf r1 manage 6861.0 K 2023-01-16 - 16:43 MarianStahl
pdf lcd0k_v1r2.pdf r1 manage 8317.3 K 2023-02-17 - 17:43 MarianStahl
pdf lcd0k_v1r3.pdf r1 manage 8466.7 K 2023-02-18 - 23:13 MarianStahl
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Topic revision: r4 - 2023-02-18 - MarianStahl

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