Test of lepton flavor universality in B$^{\pm}$$\to$ K$^{\pm}\mu^+\mu^-$ and B$^{\pm}$$\to$ K$^{\pm}$e$^+$e$^-$ decays in proton-proton collisions at $\sqrt{s}$ = 13 TeV - INSPIRE

DataBETA

Test of lepton flavor universality in B $^{\pm}$ $\to$ K $^{\pm}\mu^+\mu^-$ and B $^{\pm}$ $\to$ K $^{\pm}$ e $^+$ e $^-$ decays in proton-proton collisions at $\sqrt{s}$ = 13 TeV

CMS

Collaboration

Jan 13, 2024

37 pages

Published in:

Rept.Prog.Phys. 87 (2024) 7, 077802

Published: Jul 3, 2024

e-Print:

2401.07090 [hep-ex]

DOI:

10.1088/1361-6633/ad4e65 (publication)

Report number:

CMS-BPH-22-005,
CERN-EP-2023-297

Experiments:

CERN-LHC-CMS

View in:

reference search40 citations

Citations per year

Abstract: (IOP)

A test of lepton flavor universality in and decays, as well as a measurement of differential and integrated branching fractions of a nonresonant decay are presented. The analysis is made possible by a dedicated data set of proton-proton collisions at recorded in 2018, by the CMS experiment at the LHC, using a special high-rate data stream designed for collecting about 10 billion unbiased b hadron decays. The ratio of the branching fractions to is determined from the measured double ratio of these decays to the respective branching fractions of the with and decays, which allow for significant cancellation of systematic uncertainties. The ratio is measured in the range , where q is the invariant mass of the lepton pair, and is found to be , in agreement with the standard model expectation . This measurement is limited by the statistical precision of the electron channel. The integrated branching fraction in the same q

^{2}

range, , is consistent with the present world-average value and has a comparable precision.

Note:

All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/BPH-22-005 (CMS Public Pages)

CMS
B physics
lepton flavor universality
B meson
b to sll transitions
p p: colliding beams
lepton: flavor: universality
p p: scattering
B: semileptonic decay
muon: pair production

References(84)

Figures(34)

[1]

Partial Symmetries of Weak Interactions

S.L. Glashow
(
- Copenhagen U.
)

- Nucl.Phys. 22 (1961) 579-588,
- Also in *Lai, C. H. (Ed.): Gauge Theory Of Weak and Electromagnetic Interactions*, 171-180
•
DOI:
- 10.1016/0029-5582(61)90469-2

[2]

A Model of Leptons

Steven Weinberg
(
- MIT, LNS
)

- Phys.Rev.Lett. 19 (1967) 1264-1266,
- Also in *Lichtenberg, D. B. (ed.), Rosen, S. P. (ed.): Developments In The Quark Theory Of Hadrons, Vol. 1*, 157-159,
- In *Lai, C. H. (ed.): Gauge Theory Of Weak and Electromagnetic Interactions*, 185-187,
- In *Rosner, J. L. (ed.): New Particles*, 26-28
•
DOI:
- 10.1103/PhysRevLett.19.1264

[3]

Weak and electromagnetic interactions

N. Svartholm
,
A. Salam
,
N. Svartholm

[4]

Review of Particle Physics

R.L. Workman
(
- George Washington U.
)
,
V.D. Burkert
(
- Jefferson Lab
)
,
V. Crede
(
- Florida State U.
)
,
E. Klempt
(
- Bonn U., HISKP
)
,
U. Thoma
(
- Bonn U., HISKP
)

et al.

- PTEP 2022 (2022) 083C01
•
DOI:
- 10.1093/ptep/ptac097

[5]

Electroweak Measurements in Electron-Positron Collisions at W-Boson-Pair Energies at LEP

Collaborations

•

S. Schael
(
- Aachen, Tech. Hochsch.
)

et al.

- Phys.Rept. 532 (2013) 119-244
•
e-Print:
- 1302.3415
•
DOI:
- 10.1016/j.physrep.2013.07.004

[6]

Test of the universality of $\tau$ and $\mu$ lepton couplings in $W$ -boson decays with the ATLAS detector

ATLAS

Collaboration

•

Georges Aad
(
- Marseille, CPPM
)

et al.

- Nature Phys. 17 (2021) 7, 813-818
•
e-Print:
- 2007.14040
•
DOI:
- 10.1038/s41567-021-01236-w

[7]

Precision measurement of the W boson decay branching fractions in proton-proton collisions at $\sqrt{s}$ = 13 TeV

CMS

Collaboration

•

Armen Tumasyan
(
- Yerevan Phys. Inst.
)

et al.

- Phys.Rev.D 105 (2022) 7, 072008
•
e-Print:
- 2201.07861
•
DOI:
- 10.1103/PhysRevD.105.072008

[8]

$B$ Flavour Anomalies: 2021 Theoretical Status Report

David London
(
- U. Montreal (main)
)
,
Joaquim Matias
(
- Barcelona, Autonoma U. and
- BIST, Barcelona
)

- Ann.Rev.Nucl.Part.Sci. 72 (2022) 37-68
•
e-Print:
- 2110.13270
•
DOI:
- 10.1146/annurev-nucl-102020-090209

[9]

Test of lepton universality in beauty-quark decays

LHCb

Collaboration

•

Roel Aaij
(
- NIKHEF, Amsterdam
)

et al.

- Nature Phys. 18 (2022) 3, 277-282,
- Nature Phys. 19 (2023) 10, 1517 (addendum)
•
e-Print:
- 2103.11769
•
DOI:
- 10.1038/s41567-023-02095-3

[10]

First Observation of Upsilon(3S) ---> tau+ tau- and Tests of Lepton Universality in Upsilon Decays

CLEO

Collaboration

•

D. Besson
(
- Kansas U.
)

et al.

- Phys.Rev.Lett. 98 (2007) 052002
•
e-Print:
- hep-ex/0607019
•
DOI:
- 10.1103/PhysRevLett.98.052002

[11]

Test of lepton universality in Upsilon(1S) decays at BaBar

BaBar

Collaboration

•

P. del Amo Sanchez
(
- Annecy, LAPP
)

et al.

- Phys.Rev.Lett. 104 (2010) 191801
•
e-Print:
- 1002.4358
•
DOI:
- 10.1103/PhysRevLett.104.191801

[12]

Measurement of Branching Fractions and Rate Asymmetries in the Rare Decays $B \to K^{(*)} l^+ l^-$

BaBar

Collaboration

•

J.P. Lees
(
- Annecy, LAPP
)

et al.

- Phys.Rev.D 86 (2012) 032012
•
e-Print:
- 1204.3933
•
DOI:
- 10.1103/PhysRevD.86.032012

[13]

Study of the $D^0\to K^-\mu^+\nu_\mu$ dynamics and test of lepton flavor universality with $D^0\to K^-\ell^+\nu_\ell$ decays

BESIII

Collaboration

•

Medina Ablikim
(
- Beijing, Inst. High Energy Phys.
)

et al.

- Phys.Rev.Lett. 122 (2019) 1, 011804
•
e-Print:
- 1810.03127
•
DOI:
- 10.1103/PhysRevLett.122.011804

[14]

Test of Lepton-Flavor Universality in ${B\to K^\ast\ell^+\ell^-}$ Decays at Belle

Belle

Collaboration

•

A. Abdesselam
(
- Tabuk, Coll. Technol.
)

et al.

- Phys.Rev.Lett. 126 (2021) 16, 161801
•
e-Print:
- 1904.02440
•
DOI:
- 10.1103/PhysRevLett.126.161801

Test of lepton flavor universality and search for lepton flavor violation in $B \rightarrow K\ell \ell$ decays

BELLE

Collaboration

•

S. Choudhury
(
- Indian Inst. Tech., Hyderabad
)

et al.

- JHEP 03 (2021) 105
•
e-Print:
- 1908.01848
•
DOI:
- 10.1007/JHEP03(2021)105

[16]

First test of lepton flavor universality in the charmed baryon decays $Ω_{c}^{0} \to Ω^{-} ℓ^{+} ν_{ℓ}$ using data of the Belle experiment

Belle

Collaboration

•

Y.B. Li
(
- Fudan U.
)

et al.

- Phys.Rev.D 105 (2022) 9, L091101
•
e-Print:
- 2112.10367
•
DOI:
- 10.1103/PhysRevD.105.L091101

Study of $\Lambda_c^+ \rightarrow \Lambda \mu^+\nu_{\mu}$ and test of lepton flavor universality with $\Lambda_c^+ \rightarrow \Lambda \ell^+\nu_{\ell}$ decays

BESIII

Collaboration

•

M. Ablikim
(
- Beijing, Inst. High Energy Phys.
)

et al.

- Phys.Rev.D 108 (2023) 3, L031105
•
e-Print:
- 2306.02624
•
DOI:
- 10.1103/PhysRevD.108.L031105

Test of Lepton Universality and Measurement of the Form Factors of $D^{0} \to K^{*} (892)^{-} μ^{+} ν_{μ}$

BESIII

Collaboration

•

Medina Ablikim
(
- Beijing, Inst. High Energy Phys.
)

et al.

- Phys.Rev.Lett. 134 (2025) 1, 011803
•
e-Print:
- 2403.10877
•
DOI:
- 10.1103/PhysRevLett.134.011803

[19]

Test of lepton universality using $B^{+}\rightarrow K^{+}\ell^{+}\ell^{-}$ decays

LHCb

Collaboration

•

Roel Aaij
(
- NIKHEF, Amsterdam
)

et al.

- Phys.Rev.Lett. 113 (2014) 151601
•
e-Print:
- 1406.6482
•
DOI:
- 10.1103/PhysRevLett.113.151601

[20]

Search for lepton-universality violation in $B^+\to K^+\ell^+\ell^-$ decays

LHCb

Collaboration

•

Roel Aaij
(
- NIKHEF, Amsterdam
)

et al.

- Phys.Rev.Lett. 122 (2019) 19, 191801
•
e-Print:
- 1903.09252
•
DOI:
- 10.1103/PhysRevLett.122.191801

Test of lepton universality with $B^{0} \rightarrow K^{*0}\ell^{+}\ell^{-}$ decays

LHCb

Collaboration

•

R. Aaij
(
- CERN
)

et al.

- JHEP 08 (2017) 055
•
e-Print:
- 1705.05802
•
DOI:
- 10.1007/JHEP08(2017)055

[22]

Tests of lepton universality using $B^0\to K^0_S \ell^+ \ell^-$ and $B^+\to K^{*+} \ell^+ \ell^-$ decays

LHCb

Collaboration

•

Roel Aaij
(
- Nikhef, Amsterdam
)

et al.

- Phys.Rev.Lett. 128 (2022) 19, 191802
•
e-Print:
- 2110.09501
•
DOI:
- 10.1103/PhysRevLett.128.191802

Measurement of the isospin asymmetry in $B \to K^{(*)}\mu^+\mu^-$ decays

LHCb

Collaboration

•

R Aaij
(
- NIKHEF, Amsterdam
)

et al.

- JHEP 07 (2012) 133
•
e-Print:
- 1205.3422
•
DOI:
- 10.1007/JHEP07(2012)133

Differential branching fractions and isospin asymmetries of $B \to K^{(*)} \mu^+ \mu^-$ decays

LHCb

Collaboration

•

R. Aaij
(
- NIKHEF, Amsterdam
)

et al.

- JHEP 06 (2014) 133
•
e-Print:
- 1403.8044
•
DOI:
- 10.1007/JHEP06(2014)133

Measurements of the S-wave fraction in $B^{0}\rightarrow K^{+}\pi^{-}\mu^{+}\mu^{-}$ decays and the $B^{0}\rightarrow K^{\ast}(892)^{0}\mu^{+}\mu^{-}$ differential branching fraction

LHCb

Collaboration

•

Roel Aaij
(
- CERN
)

et al.

- JHEP 11 (2016) 047,
- JHEP 04 (2017) 142 (erratum)
•
e-Print:
- 1606.04731
•
DOI:
- 10.1007/JHEP11(2016)047

1-25 of 84
1
2
3
4
25 / page