Higgs-stoponium mixing near the stop-antistop threshold

Bodwin, Geoffrey T.; Chung, Hee Sok; Wagner, Carlos E. M.

doi:10.1103/PhysRevD.95.015013

Title: Higgs-stoponium mixing near the stop-antistop threshold

Abstract

Supersymmetric extensions of the standard model contain additional heavy neutral Higgs bosons that are coupled to heavy scalar top quarks (stops). This system exhibits interesting field theoretic phenomena when the Higgs mass is close to the stop-antistop production threshold. Existing work in the literature has examined the digluon-to-diphoton cross section near threshold and has focused on enhancements in the cross section that might arise either from the perturbative contributions to the Higgs-to-digluon and Higgs-to-diphoton form factors or from mixing of the Higgs boson with stoponium states. Near threshold, enhancements in the relevant amplitudes that go as inverse powers of the stop-antistop relative velocity require resummations of perturbation theory and/or nonperturbative treatments. We present a complete formulation of threshold effects at leading order in the stop-antistop relative velocity in terms of nonrelativistic effective field theory. We give detailed numerical calculations for the case in which the stop-antistop Green’s function is modeled with a Coulomb-Schr¨odinger Green’s function. We find several general effects that do not appear in a purely perturbative treatment. Higgs-stop-antistop mixing effects displace physical masses from the threshold region, thereby rendering the perturbative threshold enhancements inoperative. In the case of large Higgs-stop-antistop couplings, the displacement of a physical state abovemore »« less

Authors:: Bodwin, Geoffrey T.; Chung, Hee Sok; Wagner, Carlos E. M.

Publication Date:: Fri Jan 20 00:00:00 EST 2017

Research Org.:: Univ. of Chicago, IL (United States)

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

OSTI Identifier:: 1341303

Alternate Identifier(s):: OSTI ID: 1595708

Grant/Contract Number:: AC02-06CH11357; SC0009924

Resource Type:: Published Article

Journal Name:: Physical Review. D.

Additional Journal Information:: Journal Name: Physical Review. D. Journal Volume: 95 Journal Issue: 1; 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; Bound states; Effective field theory; Extensions of Higgs sector; Supersymmetric models

Citation Formats


                    Bodwin, Geoffrey T., Chung, Hee Sok, and Wagner, Carlos E. M. Higgs-stoponium mixing near the stop-antistop threshold.  United States: N. p., 2017. 
Web.  doi:10.1103/PhysRevD.95.015013.

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                    Bodwin, Geoffrey T., Chung, Hee Sok, & Wagner, Carlos E. M. Higgs-stoponium mixing near the stop-antistop threshold.  United States.  https://doi.org/10.1103/PhysRevD.95.015013

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                    Bodwin, Geoffrey T., Chung, Hee Sok, and Wagner, Carlos E. M. Fri .  
"Higgs-stoponium mixing near the stop-antistop threshold".  United States.  https://doi.org/10.1103/PhysRevD.95.015013.

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@article{osti_1341303,

  title        = {Higgs-stoponium mixing near the stop-antistop threshold},

  author       = {Bodwin, Geoffrey T. and Chung, Hee Sok and Wagner, Carlos E. M.},

  abstractNote = {Supersymmetric extensions of the standard model contain additional heavy neutral Higgs bosons that are coupled to heavy scalar top quarks (stops). This system exhibits interesting field theoretic phenomena when the Higgs mass is close to the stop-antistop production threshold. Existing work in the literature has examined the digluon-to-diphoton cross section near threshold and has focused on enhancements in the cross section that might arise either from the perturbative contributions to the Higgs-to-digluon and Higgs-to-diphoton form factors or from mixing of the Higgs boson with stoponium states. Near threshold, enhancements in the relevant amplitudes that go as inverse powers of the stop-antistop relative velocity require resummations of perturbation theory and/or nonperturbative treatments. We present a complete formulation of threshold effects at leading order in the stop-antistop relative velocity in terms of nonrelativistic effective field theory. We give detailed numerical calculations for the case in which the stop-antistop Green’s function is modeled with a Coulomb-Schr¨odinger Green’s function. We find several general effects that do not appear in a purely perturbative treatment. Higgs-stop-antistop mixing effects displace physical masses from the threshold region, thereby rendering the perturbative threshold enhancements inoperative. In the case of large Higgs-stop-antistop couplings, the displacement of a physical state above threshold substantially increases its width, owing to its decay width to a stop-antistop pair, and greatly reduces its contribution to the cross section.},

  doi          = {10.1103/PhysRevD.95.015013},

  journal      = {Physical Review. D.},

  number       = 1,

  volume       = 95,

  place        = {United States},

  year         = {Fri Jan 20 00:00:00 EST 2017},

  month        = {Fri Jan 20 00:00:00 EST 2017}

}

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Title: Higgs-stoponium mixing near the stop-antistop threshold

Abstract

Citation Formats

Double peak searches for scalar and pseudoscalar resonances at the LHC journal, December 2016

Higgs-boson decay and the running mass journal, August 1980

A Supersymmetry Primer book, April 2010

Implications of a new light scalar near the bottomonium regime journal, August 2012

Theory and phenomenology of two-Higgs-doublet models journal, July 2012

New Generation of Parton Distributions with Uncertainties from Global QCD Analysis journal, July 2002

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Resonances from QCD bound states and the 750 GeV diphoton excess journal, May 2016

Spectrum of Charmed Quark-Antiquark Bound States. journal, May 1976

Validity of the CMSSM interpretation of the diphoton excess journal, September 2016

Radiative corrections to stoponium annihilation decays journal, August 2009

QCD corrections to stoponium production at hadron colliders journal, March 2010

Spectrum of Charmed Quark-Antiquark Bound States journal, February 1975

Erratum: Rigorous QCD analysis of inclusive annihilation and production of heavy quarkonium [Phys. Rev. D 51 , 1125 (1995)] journal, May 1997

Higgs boson production at the LHC journal, October 1995

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Decays of Heavy Vector Mesons into Higgs Particles journal, November 1977

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Improved nonrelativistic QCD for heavy-quark physics journal, November 1992

Is the mass of the Higgs boson about 10 GeV? journal, May 1979

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SusHi: A program for the calculation of Higgs production in gluon fusion and bottom-quark annihilation in the Standard Model and the MSSM journal, June 2013

Threshold effects in two-photon decays of Higgs particles journal, September 1994

Towards precise predictions for Higgs-boson production in the MSSM journal, June 2014

A phenomenological profile of the Higgs boson journal, January 1976

Nonrelativistic lattice study of stoponium journal, November 2015

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Vacuum stability and the MSSM Higgs mass journal, March 2014

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ATLAS diboson excess could be an R -parity violating dismuon excess journal, February 2016

Neutral MSSM Higgs-boson production with heavy quarks: NLO supersymmetric QCD corrections journal, August 2014

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New determination of inclusive electromagnetic decay ratios of heavy quarkonium from QCD journal, December 2010

Heavy-quark thresholds in Higgs-boson physics journal, March 1990

Diphoton decays of stoponium at the CERN Large Hadron Collider journal, April 2008

Top quark production at threshold with O(αs2) accuracy journal, September 1998

A Supersymmetry Primer book, July 1998

Enhanced rates for diphoton resonances in the MSSM journal, February 2017

Double peak searches for scalar and pseudoscalar resonances at the LHC
journal, December 2016

Higgs-boson decay and the running mass
journal, August 1980

A Supersymmetry Primer
book, April 2010

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journal, August 2012

Theory and phenomenology of two-Higgs-doublet models
journal, July 2012

New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
journal, July 2002

Properties of heavy quarkonia and related states
journal, November 1990

Resonances from QCD bound states and the 750 GeV diphoton excess
journal, May 2016

Spectrum of Charmed Quark-Antiquark Bound States.
journal, May 1976

Validity of the CMSSM interpretation of the diphoton excess
journal, September 2016

Radiative corrections to stoponium annihilation decays
journal, August 2009

QCD corrections to stoponium production at hadron colliders
journal, March 2010

Spectrum of Charmed Quark-Antiquark Bound States
journal, February 1975

Erratum: Rigorous QCD analysis of inclusive annihilation and production of heavy quarkonium [Phys. Rev. D 51 , 1125 (1995)]
journal, May 1997

Higgs boson production at the LHC
journal, October 1995

An effective field theory for collinear and soft gluons: Heavy to light decays
journal, May 2001

Decays of Heavy Vector Mesons into Higgs Particles
journal, November 1977

Note on QCD corrections to hadronic Higgs decay
journal, April 1990

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journal, May 1994

Improved nonrelativistic QCD for heavy-quark physics
journal, November 1992

Is the mass of the Higgs boson about 10 GeV?
journal, May 1979

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journal, July 1993

SusHi: A program for the calculation of Higgs production in gluon fusion and bottom-quark annihilation in the Standard Model and the MSSM
journal, June 2013

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journal, September 1994

Towards precise predictions for Higgs-boson production in the MSSM
journal, June 2014

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journal, January 1976

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journal, November 2015

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journal, January 1985

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journal, January 2000

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journal, February 2014

Production of stoponium at the LHC
journal, April 2014

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journal, July 2000

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journal, February 1995

Effective lagrangians for bound state problems in QED, QCD, and other field theories
journal, February 1986

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journal, February 2016

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book, January 2006

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journal, August 1984

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journal, July 1996

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journal, December 2010

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journal, March 1990

Diphoton decays of stoponium at the CERN Large Hadron Collider
journal, April 2008

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journal, September 1998

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book, July 1998

Enhanced rates for diphoton resonances in the MSSM
journal, February 2017