Third-family quark-lepton unification with a fundamental composite Higgs

Fuentes-Martín, Javier; Stangl, Peter

doi:10.1016/j.physletb.2020.135953

Third-family quark-lepton unification with a fundamental composite Higgs

Javier Fuentes-Martín
(
- Zurich U.
)
,
Peter Stangl
(
- Annecy, LAPTH
)

Apr 23, 2020

14 pages

Published in:

Phys.Lett.B 811 (2020) 135953

Published: Dec 10, 2020

e-Print:

2004.11376 [hep-ph]

DOI:

10.1016/j.physletb.2020.135953 (publication)

Report number:

ZU-TH-08/20,
LAPTH-014/20

View in:

reference search88 citations

Citations per year

Abstract: (Elsevier)

We present a model for third-family quark-lepton unification at the TeV scale featuring a composite Higgs sector. The model is based on a variant of the Pati-Salam model, the so-called 4321 model, consisting of the gauge group SU(4)×SU(3)′×SU(2)L×U(1)X . The spontaneous symmetry breaking to the SM gauge group is triggered dynamically by a QCD-like confining sector. The same strong dynamics also produces the Higgs as a pseudo Nambu-Goldstone boson, connecting the energy scales of both sectors. The model predicts a massive U1 vector leptoquark coupled dominantly to the third generation, recently put forward as a possible solution to the B -meson anomalies.

Note:

14 pages, 2 figures. v2: matching the journal version

leptoquark: coupling
family: 3
Higgs model: composite
spontaneous symmetry breaking
Pati-Salam model
confinement
grand unified theory
SU(4) x SU(3) x SU(2) x U(1)

References(110)

Figures(2)

[1]

SU(2) x U(1) Breaking by Vacuum Misalignment

David B. Kaplan
(
- Harvard U.
)
,
Howard Georgi
(
- Harvard U.
)

- Phys.Lett.B 136 (1984) 183-186
•
DOI:
- 10.1016/0370-2693(84)91177-8

[2]

The Higgs as a Composite Nambu-Goldstone Boson

Roberto Contino
(
- Rome U. and
- INFN, Rome
)

[3]

Flavor at SSC energies: A New mechanism for dynamically generated fermion masses

David B. Kaplan
(
- UC, San Diego
)

- Nucl.Phys.B 365 (1991) 259-278
•
DOI:
- 10.1016/S0550-3213(05)80021-5

[4]

Flavor and CP Invariant Composite Higgs Models

Michele Redi
(
- CERN and
- INFN, Florence
)
,
Andreas Weiler
(
- CERN and
- DESY
)

- JHEP 11 (2011) 108
•
e-Print:
- 1106.6357
•
DOI:
- 10.1007/JHEP11(2011)108

[5]

Composite MFV and Beyond

Michele Redi
(
- CERN and
- INFN, Florence
)

- Eur.Phys.J.C 72 (2012) 2030
•
e-Print:
- 1203.4220
•
DOI:
- 10.1140/epjc/s10052-012-2030-1

[6]

Direct and indirect signals of natural composite Higgs models

- JHEP 01 (2016) 119
•
e-Print:
- 1508.00569
•
DOI:
- 10.1007/JHEP01(2016)119

[7]

Mass Without Scalars

Savas Dimopoulos
(
- Columbia U.
)
,
Leonard Susskind
(
- Stanford U., ITP
)

- Nucl.Phys.B 155 (1979) 237-252,
- Also in *Farhi, E. (ed.), Jackiw, R. (ed.): Dynamical Gauge Symmetry Breaking*, 161-176,
•
DOI:
- 10.1016/0550-3213(79)90364-X

[8]

Dynamical Breaking of Weak Interaction Symmetries

Estia Eichten
(
- Harvard U.
)
,
Kenneth D. Lane
(
- Harvard U.
)

- Phys.Lett.B 90 (1980) 125-130,
- Also in *Farhi, E. (ed.), Jackiw, R. (ed.): Dynamical Gauge Symmetry Breaking*, 177-182
•
DOI:
- 10.1016/0370-2693(80)90065-9

[9]

$U(2)$ and Minimal Flavour Violation in Supersymmetry

Riccardo Barbieri
(
- Pisa, Scuola Normale Superiore and
- INFN, Pisa
)
,
Gino Isidori
(
- Frascati
)
,
Joel Jones-Perez
(
- Frascati
)
,
Paolo Lodone
(
- Pisa, Scuola Normale Superiore and
- INFN, Pisa
)
,
David M. Straub
(
- Pisa, Scuola Normale Superiore and
- INFN, Pisa
)

- Eur.Phys.J.C 71 (2011) 1725
•
e-Print:
- 1105.2296
•
DOI:
- 10.1140/epjc/s10052-011-1725-z

[10]

Neutrino Masses and LFV from Minimal Breaking of $U(3)^5$ and $U(2)^5$ flavor Symmetries

Gianluca Blankenburg
(
- Rome III U. and
- CERN
)
,
Gino Isidori
(
- CERN and
- Frascati
)
,
Joel Jones-Perez
(
- Frascati and
- CERN
)

- Eur.Phys.J.C 72 (2012) 2126
•
e-Print:
- 1204.0688
•
DOI:
- 10.1140/epjc/s10052-012-2126-7

[11]

Flavour physics from an approximate $U(2)^3$ symmetry

Riccardo Barbieri
(
- Pisa, Scuola Normale Superiore and
- INFN, Pisa
)
,
Dario Buttazzo
(
- Pisa, Scuola Normale Superiore and
- INFN, Pisa
)
,
Filippo Sala
(
- Pisa, Scuola Normale Superiore and
- INFN, Pisa
)
,
David M. Straub
(
- Pisa, Scuola Normale Superiore and
- INFN, Pisa
)

- JHEP 07 (2012) 181
•
e-Print:
- 1203.4218
•
DOI:
- 10.1007/JHEP07(2012)181

[12]

Measurement of Form-Factor-Independent Observables in the Decay $B^{0} \to K^{*0} \mu^+ \mu^-$

LHCb

Collaboration

•

R Aaij
(
- NIKHEF, Amsterdam
)

et al.

- Phys.Rev.Lett. 111 (2013) 191801
•
e-Print:
- 1308.1707
•
DOI:
- 10.1103/PhysRevLett.111.191801

[13]

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

[14]

Angular analysis of the $B^{0} \to K^{*0} \mu^{+} \mu^{-}$ decay using 3 fb $^{-1}$ of integrated luminosity

LHCb

Collaboration

•

Roel Aaij
(
- CERN
)

et al.

- JHEP 02 (2016) 104
•
e-Print:
- 1512.04442
•
DOI:
- 10.1007/JHEP02(2016)104

[15]

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

[16]

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

[17]

Evidence for an excess of $\bar{B} \to D^{(*)} \tau^-\bar{\nu}_\tau$ decays

BaBar

Collaboration

•

J.P. Lees
(
- Annecy, LAPP
)

et al.

- Phys.Rev.Lett. 109 (2012) 101802
•
e-Print:
- 1205.5442
•
DOI:
- 10.1103/PhysRevLett.109.101802

[18]

Measurement of the branching ratio of $\bar{B} \to D^{(\ast)} \tau^- \bar{\nu}_\tau$ relative to $\bar{B} \to D^{(\ast)} \ell^- \bar{\nu}_\ell$ decays with hadronic tagging at Belle

Belle

Collaboration

•

M. Huschle
(
- Karlsruhe U., EKP
)

et al.

- Phys.Rev.D 92 (2015) 7, 072014
•
e-Print:
- 1507.03233
•
DOI:
- 10.1103/PhysRevD.92.072014

[19]

Measurement of the ratio of branching fractions $\mathcal{B}(\bar{B}^0 \to D^{+}\tau^{-}\bar{\nu}_{\tau})/\mathcal{B}(\bar{B}^0 \to D^{+}\mu^{-}\bar{\nu}_{\mu})$

LHCb

Collaboration

•

Roel Aaij
(
- CERN
)

et al.

- Phys.Rev.Lett. 115 (2015) 11, 111803,
- Phys.Rev.Lett. 115 (2015) 15, 159901 (erratum)
•
e-Print:
- 1506.08614
•
DOI:
- 10.1103/PhysRevLett.115.111803