Baryon spectrum of SU(4) composite Higgs theory with two distinct fermion representations

doi:10.1103/PhysRevD.97.114505

Title: Baryon spectrum of SU(4) composite Higgs theory with two distinct fermion representations

Abstract

We use lattice simulations to compute the baryon spectrum of SU(4) lattice gauge theory coupled to dynamical fermions in the fundamental and two-index antisymmetric (sextet) representations simultaneously. This model is closely related to a composite Higgs model in which the chimera baryon made up of fermions from both representations plays the role of a composite top-quark partner. The dependence of the baryon masses on each underlying fermion mass is found to be generally consistent with a quark-model description and large- N_c scaling. We combine our numerical results with experimental bounds on the scale of the new strong sector to estimate a lower bound on the mass of the top-quark partner. We discuss some theoretical uncertainties associated with this estimate.

Authors:: Ayyar, Venkitesh; DeGrand, Thomas; Hackett, Daniel C.; Jay, William I.; Neil, Ethan T.; Shamir, Yigal; Svetitsky, Benjamin

Publication Date:: 2018-06-01

Research Org.:: Univ. of Colorado, Boulder, CO (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)

Sponsoring Org.:: USDOE Office of Science (SC), High Energy Physics (HEP)

OSTI Identifier:: 1441073

Alternate Identifier(s):: OSTI ID: 1498851

Report Number(s):: arXiv:1801.05809
Journal ID: ISSN 2470-0010; PRVDAQ; 114505

Grant/Contract Number:: SC0010005; SC0012704

Resource Type:: Published Article

Journal Name:: Physical Review D

Additional Journal Information:: Journal Name: Physical Review D Journal Volume: 97 Journal Issue: 11; Journal ID: ISSN 2470-0010

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats


                    Ayyar, Venkitesh, DeGrand, Thomas, Hackett, Daniel C., Jay, William I., Neil, Ethan T., Shamir, Yigal, and Svetitsky, Benjamin. Baryon spectrum of SU(4) composite Higgs theory with two distinct fermion representations.  United States: N. p., 2018. 
        Web.  doi:10.1103/PhysRevD.97.114505.

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                    Ayyar, Venkitesh, DeGrand, Thomas, Hackett, Daniel C., Jay, William I., Neil, Ethan T., Shamir, Yigal, & Svetitsky, Benjamin. Baryon spectrum of SU(4) composite Higgs theory with two distinct fermion representations.  United States.  doi:10.1103/PhysRevD.97.114505.

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                    Ayyar, Venkitesh, DeGrand, Thomas, Hackett, Daniel C., Jay, William I., Neil, Ethan T., Shamir, Yigal, and Svetitsky, Benjamin. Fri .  
        "Baryon spectrum of SU(4) composite Higgs theory with two distinct fermion representations".  United States.  doi:10.1103/PhysRevD.97.114505.

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@article{osti_1441073,

  title        = {Baryon spectrum of SU(4) composite Higgs theory with two distinct fermion representations},

  author       = {Ayyar, Venkitesh and DeGrand, Thomas and Hackett, Daniel C. and Jay, William I. and Neil, Ethan T. and Shamir, Yigal and Svetitsky, Benjamin},

  abstractNote = {We use lattice simulations to compute the baryon spectrum of SU(4) lattice gauge theory coupled to dynamical fermions in the fundamental and two-index antisymmetric (sextet) representations simultaneously. This model is closely related to a composite Higgs model in which the chimera baryon made up of fermions from both representations plays the role of a composite top-quark partner. The dependence of the baryon masses on each underlying fermion mass is found to be generally consistent with a quark-model description and large- Nc scaling. We combine our numerical results with experimental bounds on the scale of the new strong sector to estimate a lower bound on the mass of the top-quark partner. We discuss some theoretical uncertainties associated with this estimate.},

  doi          = {10.1103/PhysRevD.97.114505},

  journal      = {Physical Review D},

  number       = 11,

  volume       = 97,

  place        = {United States},

  year         = {2018},

  month        = {6}

}

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DOI: 10.1103/PhysRevD.97.114505

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Radiative contribution to the composite-Higgs potential in a two-representation lattice model
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Ayyar, Venkitesh; Golterman, Maarten; Hackett, Daniel C.
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Strong dynamics with matter in multiple representations: $$\mathrm {SU}(4)$$ gauge theory with fundamental and sextet fermions
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Title: Baryon spectrum of SU(4) composite Higgs theory with two distinct fermion representations

Abstract

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Spin-flavor structure of large $N_{c}$ baryons
journal, April 1995

Erratum: $\frac{1}{N_{c}}$ expansion for baryons
journal, March 1995

Spin contribution to light baryons in different large- $N$ limits
journal, February 2012

Composite Higgses
journal, May 2014

Baryons and Skyrmions in QCD with quarks in higher representations
journal, March 2007

Large- $N$ QCD Baryon Dynamics—Exact Results from Its Relation to the Static Strong-Coupling Theory
journal, January 1984

Suppressing dislocations in normalized hypercubic smearing
journal, September 2014

Baryon chiral perturbation theory using a heavy fermion lagrangian
journal, February 1991

Flavor symmetry and the static potential with hypercubic blocking
journal, July 2001

Composite bosonic baryon dark matter on the lattice: $S U (4)$ baryon spectrum and the effective Higgs interaction
journal, May 2014

Fundamental composite (Goldstone) Higgs dynamics
journal, April 2014

Large- $N$ baryonic soliton and quarks
journal, October 1984

Static properties of nucleons in the Skyrme model
journal, December 1983

Baryon-pion couplings from large-Nc QCD
journal, October 1993

Lattice calculations of the spectroscopy of baryons with broken flavor $S U (3)$ symmetry and 3, 5, or 7 colors
journal, January 2014

Fundamental composite 2HDM: SU(N) with 4 flavours
journal, March 2016

Hypercubic smeared links for dynamical fermions
journal, May 2007

Towards Partial Compositeness on the Lattice: Baryons with Fermions in Multiple Representations
conference, March 2017

Di-boson signatures as standard candles for partial compositeness
journal, January 2017

Flavor symmetry breaking in the 1/ $N_{c}$ expansion
journal, January 1996

Sp(4) gauge theory on the lattice: towards SU(4)/Sp(4) composite Higgs (and beyond)
journal, March 2018

SU(2) gauge theory with two fundamental flavors: A minimal template for model building
journal, November 2016

UV completions of partial compositeness: the case for a SU(4) gauge group
journal, June 2014

Valence QCD: Connecting QCD to the quark model
journal, April 1999

Effective potential in ultraviolet completions for composite Higgs models
journal, May 2018

Baryon mass splittings in the 1/ $N_{c}$ expansion
journal, July 1995

Hadron masses in a gauge theory
journal, July 1975

One-loop anomalous dimension of top-partner hyperbaryons in a family of composite Higgs models
journal, October 2015

Baryons in the expansion
journal, November 1979

Review of strongly-coupled composite dark matter models and lattice simulations
journal, August 2016

Lattice baryons in the $1 / N$ expansion
journal, August 2012

Chiral perturbation theory and baryon properties
journal, January 2008

A dangerous irrelevant UV-completion of the composite Higgs
journal, February 2017

Fermionic UV completions of composite Higgs models
journal, March 2014

Composite Higgs and custodial SU(2)
journal, September 1984

Classification of NLO operators for composite Higgs models
journal, April 2018

Stability analysis of the chiral transition in SU(4) gauge theory with fermions in multiple representations
journal, March 2018

Anatomy of a composite Higgs model
journal, January 1985

Anomalous dimensions of conformal baryons
journal, October 2016

Review of lattice results concerning low-energy particle physics: Flavour Lattice Averaging Group (FLAG)
journal, February 2017

$N_{c}$ dependencies of baryon masses: Analysis with lattice QCD and effective theory
journal, July 2014

Chiral Transition of SU(4) Gauge Theory with Fermions in Multiple Representations
journal, January 2018

$\frac{1}{N_{c}}$ expansion for baryons
journal, May 1994

Confinement study of an SU(4) gauge theory with fermions in multiple representations
journal, January 2018

Top quark induced effective potential in a composite Higgs model
journal, May 2015

Minimal conformal technicolor and precision electroweak tests
journal, October 2010

Spectroscopy of SU(4) gauge theory with two flavors of sextet fermions
journal, June 2015

Erratum: Properties and uses of the Wilson flow in lattice QCD
journal, March 2014

Spectroscopy of SU(4) composite Higgs theory with two distinct fermion representations
journal, April 2018

Properties and uses of the Wilson flow in lattice QCD
journal, August 2010

Flavor at ssc energies: A new mechanism for dynamically generated fermion masses
journal, November 1991

UV descriptions of composite Higgs models without elementary scalars
journal, February 2014

Lattice tests of beyond standard model dynamics
journal, January 2016

Baryon hyperfine mass splittings large N QCD
journal, October 1993

Gauge theories of partial compositeness: scenarios for Run-II of the LHC
journal, June 2016

Current algebra, baryons, and quark confinement
journal, August 1983

Into the conformal window: Multirepresentation gauge theories
journal, March 2020

Scheme-independent calculations of properties at a conformal infrared fixed point in gauge theories with multiple fermion representations
journal, November 2018

Partial compositeness and baryon matrix elements on the lattice
journal, May 2019

Radiative contribution to the composite-Higgs potential in a two-representation lattice model
journal, May 2019

Large- $N_{c}$ and large- $N_{F}$ limits of $SU (N_{c})$ gauge theories with fermions in different representations
journal, June 2019

Lattice gauge theory for physics beyond the Standard Model
journal, November 2019

Strong dynamics with matter in multiple representations: $$\mathrm {SU}(4)$$ gauge theory with fundamental and sextet fermions
journal, July 2019

Anomalous dimensions of potential top-partners
journal, January 2019