Composite Weak Bosons LHC

CERN LHC

ATLAS at Large Hadron Collider / CERN

CMS

quarks - leptons - weak bosons Standard Model: quarks - leptons - weak bosons ==> pointlike

present limit on the substructure of leptons and quarks

- mass Problem for Standard Model

Mass: - 1686

- mass 1916 geometry ( General Relativity )

- mass universal

Standard Model two different types of mass generation

mass by confinement QCD

electroweak theory spontaneous symmetry breaking

proton weak boson ? <=mass=> H H

- alternative: mass generation confinement

===> weak bosons composite

v = 246 GeV => 0.3 TeV !! new interaction !!

Fritzsch and Mandelbaum (1981) Abbott and Farhi (1981) - old references: Bjorken (1977) Fritzsch and Mandelbaum (1981) Abbott and Farhi (1981) Barbieri and Mohapatra (1981) Fritzsch, Kogerler and Schildknecht (1982) Uehara and Yanagida (1985)

- new: Fritzsch (2010) arXiv:1010.1428

- masses of composite weak bosons ? analogy

- QCD quark masses = 0 no electromagnetism

Dynamical mixing of rho meson and photon: - QCD + QED Dynamical mixing of rho meson and photon:

- mixing parameter m decay constant

-

- m: mixing parameter m = 0.09

- mixing mass shift: 3.1 MeV

- masses of composite weak bosons ?

W ====>>> constituents

- lefthanded fermions

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- electric charges

-

- haplons confined by gauge force QHD

- Gauge group of QHD: SU(n) ( e.g. SU(3) )

- mass scale of Q H D

-  QHD Dynamical mixing of W-boson and photon

- mixing of W with photon m: mixing parameter

- Standard Model

-

- Q C D

- Q H D

- QCD + QED QHD+ QED ~10.4 GeV ~3.1 MeV

- W decay constant

- experimental data:

- -

- uncertainty: which gauge group for QHD?

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of strong interactions - complexity at 1 T e V complexity of strong interactions at 1 G e V

- QCD 1 GeV

- QHD 1 TeV 0.8 TeV 0.081 TeV

-

-

- ? 1 TeV

-

-

- QCD QHD 63

- QHD 1 TeV

- unknown: coupling of W(2) etc. to fermions

- decay into weak bosons

- L H C p p

quarks <==> antiquarks - QHD interaction quarks <==> antiquarks p p

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muon Z W Z

-

Z production at LHC: ~ 21 nb - Z production at LHC: ~ 21 nb ==> estimate of cross section for W production ~ 0.3 nb

- hadrons

Z Z

- hadrons

- weak bosons composite weak interactions

d W u

d W u

leptons and quarks must be composite - weak interactions leptons and quarks must be composite

-

- What is ? ? : for leptons ==> lepton number ? : for quarks ==> color r - g - b

- simplest theory: leptons - quarks (fermion + scalar)

leptons - quarks

- 2 fermions 4 scalars

- 4 scalars inside leptons ks inside qu ar

- electric charges

- electric charges

s f interactions s f s s

- leptons

- red quarks

- + fermion scalar electron

- + scalar fermion red quark

- resonances: A: new boson ( e.g. the weak bosons )

- resonances: A: new boson new boson B: C: new fermion

- cross section for QHD interaction?

comparison with proton - proton inelastic scattering: size: 1000

- of all events QHD interaction

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-

- QHD - resonance ~ 1 TeV

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muon Z Z Z

-

muon W W neutrino

- quark – antiquark scattering:

- resonances:

- 1 TeV

-

-

- invariant mass: e.g. 1 TeV Z Z Z

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- resonance

"strongly interacting systems" - leptons become "strongly interacting systems" " Q H D "

- TeV 1 0.8 TeV

- 7 TeV 7 TeV ~0.8 TeV

muon

electron

neutrino

-

u - d - s - c - b - t

- Conclusions weak bosons, leptons and quarks are composite systems

weak boson => fermion + antifermion - weak boson => fermion + antifermion lepton, quark => fermion + scalar - masses of weak bosons, leptons and quarks ==>> confinement in QHD

-

- QHD - scattering of quarks, antiquarks and gluons at high energies:

formation of QHD resonances : - formation of QHD resonances : ~ 1 TeV

QHD resonances L H C