Production and polarization of prompt ϒ ( n S ) in the improved color evaporation model using the k T -factorization approach

Cheung, Vincent; Vogt, Ramona

doi:10.1103/PhysRevD.99.034007

Title: Production and polarization of prompt $ϒ (n S)$ in the improved color evaporation model using the $k_{T}$ -factorization approach

Abstract

We calculate the polarization of prompt $$\Upsilon$$($$nS$) production in the improved color evaporation model at leading order employing the $$k_T$$-factorization approach. Here, we present the polarization parameter λ$$_{\vartheta}$$ of prompt $$\Upsilon$$($$nS$) as a function of transverse momentum in $$p$$ + $$p$$ and $$p$$ + $$\bar{p}$$ collisions to compare with data in the helicity, Collins-Soper and Gottfried-Jackson frames. We also present calculations of the bottomonium production cross sections as a function of transverse momentum and rapidity. This is the first $$p_T$$ -dependent calculation of bottomonium production and polarization in the improved color evaporation model. We find agreement with both bottomonium cross sections and polarization measurements.

Authors:: Cheung, Vincent; Vogt, Ramona

Publication Date:: Fri Feb 15 00:00:00 EST 2019

Research Org.:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA)

OSTI Identifier:: 1494861

Alternate Identifier(s):: OSTI ID: 1512591

Report Number(s):: LLNL-JRNL-763159
Journal ID: ISSN 2470-0010; PRVDAQ; 034007

Grant/Contract Number:: AC52-07NA27344; SC0004014

Resource Type:: Published Article

Journal Name:: Physical Review. D.

Additional Journal Information:: Journal Name: Physical Review. D. Journal Volume: 99 Journal Issue: 3; 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


                    Cheung, Vincent, and Vogt, Ramona. Production and polarization of prompt ϒ ( n S ) in the improved color evaporation model using the k T -factorization approach.  United States: N. p., 2019. 
Web.  doi:10.1103/PhysRevD.99.034007.

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                    Cheung, Vincent, & Vogt, Ramona. Production and polarization of prompt ϒ ( n S ) in the improved color evaporation model using the k T -factorization approach.  United States.  https://doi.org/10.1103/PhysRevD.99.034007

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                    Cheung, Vincent, and Vogt, Ramona. Fri .  
"Production and polarization of prompt ϒ ( n S ) in the improved color evaporation model using the k T -factorization approach".  United States.  https://doi.org/10.1103/PhysRevD.99.034007.

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@article{osti_1494861,

  title        = {Production and polarization of prompt ϒ ( n S ) in the improved color evaporation model using the k T -factorization approach},

  author       = {Cheung, Vincent and Vogt, Ramona},

  abstractNote = {We calculate the polarization of prompt $\Upsilon$($nS$) production in the improved color evaporation model at leading order employing the $k_T$-factorization approach. Here, we present the polarization parameter λ$_{\vartheta}$ of prompt $\Upsilon$($nS$) as a function of transverse momentum in $p$ + $p$ and $p$ + $\bar{p}$ collisions to compare with data in the helicity, Collins-Soper and Gottfried-Jackson frames. We also present calculations of the bottomonium production cross sections as a function of transverse momentum and rapidity. This is the first $p_T$ -dependent calculation of bottomonium production and polarization in the improved color evaporation model. We find agreement with both bottomonium cross sections and polarization measurements.},

  doi          = {10.1103/PhysRevD.99.034007},

  journal      = {Physical Review. D.},

  number       = 3,

  volume       = 99,

  place        = {United States},

  year         = {Fri Feb 15 00:00:00 EST 2019},

  month        = {Fri Feb 15 00:00:00 EST 2019}

}

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Cited by: 13 works

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Figures / Tables:

TABLE I: The mass, $M_{Q}$, and the squared feed-down transition Clebsch-Gordan coefficients, $S^{J_{z}}_{Q}$ , for all bottomonium states contributing to prompt $Υ$ ($nS$) production.

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Title: Production and polarization of prompt ϒ ( n S ) in the improved color evaporation model using the k T -factorization approach

Abstract

Citation Formats

Figures / Tables:

Measurement of quarkonium production at forward rapidity in $$\mathbf {pp}$$ pp collisions at $$\mathbf {\sqrt{s}=7}~$$ s = 7 TeV journal, August 2014

Forward production of Υ mesons in pp collisions at s = 7 $$ \sqrt{s}=7 $$ and 8 TeV journal, November 2015

ϒ ( n S ) and χ b ( n P ) production at hadron colliders in nonrelativistic QCD journal, July 2016

Comparison of the color-evaporation model and the nonrelativistic QCD factorization approach in charmonium production journal, July 2005

Heavy-flavour and quarkonium production in the LHC era: from proton–proton to heavy-ion collisions journal, February 2016

Measurement of the fraction of Υ (1S) originating from χb(1P) decays in pp collisions at $ \sqrt{s}=7\,TeV $ journal, November 2012

Measurement of the χ b (3P) mass and of the relative rate of χ b1(1P) and χ b2(1P) production journal, October 2014

An updated study of ϒ production and polarization at the Tevatron and LHC journal, December 2015

Systematics of quarkonium production journal, October 1996

Measurement of upsilon production in 7 TeV p p collisions at ATLAS journal, March 2013

Charmonium production at high energy in the k T -factorization approach journal, April 2006

On the connection between production mechanism and decay of resonances at high energies journal, July 1964

Upsilon production cross section in p p collisions at s = 7 TeV journal, June 2011

Measurement of ϒ production in pp collisions at $\sqrt{\boldsymbol{s}}=\boldsymbol{7}~\mathrm{TeV}$ journal, June 2012

Quarkonium feed-down and sequential suppression journal, October 2001

ϒ Production and Polarization in p p ¯ Collisions at s = 1.8 TeV journal, April 2002

Polarization of prompt J / ψ and ϒ ( 1 S ) production in the color evaporation model journal, September 2017

Polarization for Prompt J / ψ and ψ ( 2 s ) Production at the Tevatron and LHC journal, January 2013

Measurement of the Y(nS) polarizations in pp collisions at s = 7 $$ \sqrt{s}=7 $$ and 8 TeV journal, December 2017

Production of J/ψ and $ \varUpsilon $ mesons in pp collisions at $ \sqrt{s}=8 $ TeV journal, June 2013

Quarkonium production in an improved color evaporation model journal, December 2016

On ψ and ϒ production via gluons journal, April 1980

Measurement of the Υ ( 1 S ) , Υ ( 2 S ) , and Υ ( 3 S ) Polarizations in p p Collisions at s = 7 TeV journal, February 2013

Transverse momentum dependent gluon density from DIS precision data journal, June 2014

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

Polarized heavy quarkonium production in the color evaporation model journal, April 2017

Production and polarization of prompt J / ψ in the improved color evaporation model using the k T -factorization approach journal, December 2018

Measurement of the production cross section ratio σ(χb2(1P))/σ(χb1(1P)) in pp collisions at s = 8 TeV journal, April 2015

Complete Next-to-Leading-Order Study on the Yield and Polarization of Υ ( 1 S , 2 S , 3 S ) at the Tevatron and LHC journal, January 2014

Angular distribution of dileptons in high-energy hadron collisions journal, October 1977

Heavy-quark production in very high energy hadron collisions journal, August 1991

Towards the experimental clarification of quarkonium polarization journal, September 2010

Title: Production and polarization of prompt $ϒ (n S)$ in the improved color evaporation model using the $k_{T}$ -factorization approach

Measurement of quarkonium production at forward rapidity in $$\mathbf {pp}$$ pp collisions at $$\mathbf {\sqrt{s}=7}~$$ s = 7 TeV
journal, August 2014

Forward production of Υ mesons in pp collisions at s = 7 $$ \sqrt{s}=7 $$ and 8 TeV
journal, November 2015

$ϒ (n S)$ and $χ_{b} (n P)$ production at hadron colliders in nonrelativistic QCD
journal, July 2016

Comparison of the color-evaporation model and the nonrelativistic QCD factorization approach in charmonium production
journal, July 2005

Heavy-flavour and quarkonium production in the LHC era: from proton–proton to heavy-ion collisions
journal, February 2016

Measurement of the fraction of Υ (1S) originating from χb(1P) decays in pp collisions at $ \sqrt{s}=7\,TeV $
journal, November 2012

Measurement of the χ b (3P) mass and of the relative rate of χ b1(1P) and χ b2(1P) production
journal, October 2014

An updated study of ϒ production and polarization at the Tevatron and LHC
journal, December 2015

Systematics of quarkonium production
journal, October 1996

Measurement of upsilon production in 7 TeV $p p$ collisions at ATLAS
journal, March 2013

Charmonium production at high energy in the $k_{T}$ -factorization approach
journal, April 2006

On the connection between production mechanism and decay of resonances at high energies
journal, July 1964

Upsilon production cross section in $p p$ collisions at $\sqrt{s} = 7 TeV$
journal, June 2011

Measurement of ϒ production in pp collisions at $\sqrt{\boldsymbol{s}}=\boldsymbol{7}~\mathrm{TeV}$
journal, June 2012

Quarkonium feed-down and sequential suppression
journal, October 2001

$ϒ$ Production and Polarization in $p \bar{p}$ Collisions at $\sqrt{s} = 1.8 TeV$
journal, April 2002

Polarization of prompt $J / ψ$ and $ϒ (1 S)$ production in the color evaporation model
journal, September 2017

Polarization for Prompt $J / ψ$ and $ψ (2 s)$ Production at the Tevatron and LHC
journal, January 2013

Measurement of the Y(nS) polarizations in pp collisions at s = 7 $$ \sqrt{s}=7 $$ and 8 TeV
journal, December 2017

Production of J/ψ and $ \varUpsilon $ mesons in pp collisions at $ \sqrt{s}=8 $ TeV
journal, June 2013

Quarkonium production in an improved color evaporation model
journal, December 2016

On ψ and ϒ production via gluons
journal, April 1980

Measurement of the $Υ (1 S)$ , $Υ (2 S)$ , and $Υ (3 S)$ Polarizations in $p p$ Collisions at $\sqrt{s} = 7 TeV$
journal, February 2013

Transverse momentum dependent gluon density from DIS precision data
journal, June 2014

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

Polarized heavy quarkonium production in the color evaporation model
journal, April 2017

Production and polarization of prompt $J / ψ$ in the improved color evaporation model using the $k_{T}$ -factorization approach
journal, December 2018

Measurement of the production cross section ratio σ(χb2(1P))/σ(χb1(1P)) in pp collisions at $\sqrt{s} = 8 TeV$
journal, April 2015

Complete Next-to-Leading-Order Study on the Yield and Polarization of $Υ (1 S, 2 S, 3 S)$ at the Tevatron and LHC
journal, January 2014

Angular distribution of dileptons in high-energy hadron collisions
journal, October 1977

Heavy-quark production in very high energy hadron collisions
journal, August 1991

Towards the experimental clarification of quarkonium polarization
journal, September 2010