Prediction for 4.4 ATeV pPb Collisions at the LHC (PR C85, 024903, - - PowerPoint PPT Presentation

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Prediction for 4.4 ATeV pPb Collisions at the LHC (PR C85, 024903, - - PowerPoint PPT Presentation

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Prediction for 4.4 ATeV pPb Collisions at the LHC (PR C85, 024903, 2012) Gergely Gbor Barnafldi Wigner RCP RMI of the HAS in collaboration J. Barrette, M. Gyulassy, P. Lvai, G. Papp, V. Topor Pop High-p T Physics for the LHC 2012, Hanau

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Prediction for 4.4 ATeV pPb Collisions at the LHC

(PR C85, 024903, 2012)

Gergely Gábor Barnaföldi

Wigner RCP RMI of the HAS in collaboration

  • J. Barrette, M. Gyulassy, P. Lévai, G. Papp, V. Topor Pop

High-pT Physics for the LHC 2012, Hanau am Main 4-8 April 2012

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SLIDE 2

G.G. Barnaföldi: Prediction for 4.4 ATeV pPb Collisions at the LHC

O U T L I N E

  • Motivation for pA collisions
  • Will have pA in 2012 (in 2011 it was cancelled)
  • High & low-pT hadron spectra incl. nuclear effect
  • Separation of initial/final state effects
  • Nuclear Modification, RpA(pT )
  • High-pT nuclear effects @ midrapidity & large y
  • Low-x and high-x tests?
  • From SPS, RHIC, to LHC: finding proper scaling
  • Rapidity dependence, asymmetry, Y(η )
  • Puzzle: interpaly of nuclear effects
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SLIDE 3

G.G. Barnaföldi: Prediction for 4.4 ATeV pPb Collisions at the LHC

M O T I V A T I O N

  • Cronin effect at SPS energies

Brown et al: PRD11 (1975) 3105, Ric.Sci.Edu.Perm Suppl. 122 (2003) 541

  • RHIC analysis on dAu and AuAu

40% 10% ????

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G.G. Barnaföldi: Prediction for 4.4 ATeV pPb Collisions at the LHC

Models & Parameters

HIJING B/B2.0

PRC83 024902, PRC84 022002 (2010)

Modified version of HIJING 2.0 Minijet cutoff: p0=3.1 GeV/c String tension: κ0=2.9 GeV/fm PDF: GRV+ HIJING shadowing FF: PYTHIA + minijet

kTpQCD

PRC65 (2002)034903

NLO pQCD based parton model with intrinsic-kT, kT- broadening, and various shadowing parametrization. PDF:GRV/MRST+Shad, FF:KKP

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G.G. Barnaföldi: Prediction for 4.4 ATeV pPb Collisions at the LHC

The Spectra and RpPb(pT ) for |η|<0.8

Charged hadron production with HIJING 2.0 @ 4.4 ATeV

GGB, J. Barrette, M. Gyulassy, P. Lévai, V. Topor Pop PRC85 024903 (2012)

RpA~ 0.7

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SLIDE 6

G.G. Barnaföldi: Prediction for 4.4 ATeV pPb Collisions at the LHC

Hadron production with HIJING2.0 @ 0.2 AGeV & 4.4 AteV Shadowing: b-dependent part with

GGB, J. Barrette, M. Gyulassy, P. Lévai, V. Topor Pop PRC85 024903 (2012)

The Spectra and RpPb(pT ) for |η|<0.35 & 0.8

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SLIDE 7

G.G. Barnaföldi: Prediction for 4.4 ATeV pPb Collisions at the LHC

Shadowing effects on RdAu(pT ) for |η|< 0.35

Extreme high-pT Pion production with kTpQCD @ 200 AGeV

BA Cole, GGB, G. Fai, P. Lévai, G. Papp, arXiv:08073384 (2007)

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SLIDE 8

G.G. Barnaföldi: Prediction for 4.4 ATeV pPb Collisions at the LHC

Midrapidity RdA(xT ) for |η|< 0.35

Pion production with HIJING shadowing kTpQCD @ 0.2 & 8.8 ATeV HIJING Shadowing x-scaling DGLAP evolution Need for additional multiple scattering

GGB, G. Fai, P. Lévai, BA Cole, G. Papp, Indian J.Phys. 84 (2010) 1721-1725

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SLIDE 9

G.G. Barnaföldi: Prediction for 4.4 ATeV pPb Collisions at the LHC

GGB, G. Fai, P. Lévai, BA Cole, G. Papp, Indian J.Phys. 84 (2010) 1721-1725

Midrapidity RdA(xT ) for |η|< 0.35

Pion production with EKS shadowing kTpQCD @ 0.2 & 8.8 ATeV EKS Shadowing x-scaling DGLAP evolution

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SLIDE 10

G.G. Barnaföldi: Prediction for 4.4 ATeV pPb Collisions at the LHC

GGB, G. Fai, P. Lévai, BA Cole, G. Papp, Indian J.Phys. 84 (2010) 1721-1725

Midrapidity RdA(xT ) for |η|< 0.35

Pion production with EKS shadowing kTpQCD @ 0.2 & 8.8 ATeV EKS Shadowing x-scaling DGLAP evolution

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SLIDE 11

G.G. Barnaföldi: Prediction for 4.4 ATeV pPb Collisions at the LHC

BA Cole, GGB, G. Fai, P. Lévai, G. Papp, arXiv:08073384 (2007)

Midrapidity RdA(xT ) for |η|< 0.35

Pion production with EKS shadowing kTpQCD @ 0.2 & 8.8 ATeV EKS Shadowing x-scaling DGLAP evolution

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SLIDE 12

G.G. Barnaföldi: Prediction for 4.4 ATeV pPb Collisions at the LHC

Midrapidity RdA(pT ) fot LHC – Summary

Extreme high-pT Pion production kTpQCD @ 0.2, 0.9, & 8.8 ATeV kT-broadening:

BA Cole, GGB, G. Fai, P. Lévai, G. Papp, arXiv:08073384 (2007)

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SLIDE 13

G.G. Barnaföldi: Prediction for 4.4 ATeV pPb Collisions at the LHC

Midrapidity RdA(pT ) fot LHC – Summary

BA Cole, GGB, G. Fai, P. Lévai, G. Papp, arXiv:08073384 (2007)

Extreme high-pT Pion production kTpQCD @ 0.2, 0.9, & 8.8 ATeV kT-broadening:

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SLIDE 14

G.G. Barnaföldi: Prediction for 4.4 ATeV pPb Collisions at the LHC

Midrapidity RdA(pT ) fot LHC – Summary

BA Cole, GGB, G. Fai, P. Lévai, G. Papp, arXiv:08073384 (2007)

Extreme high-pT Pion production kTpQCD @ 0.2, 0.9, & 8.8 ATeV

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SLIDE 15

G.G. Barnaföldi: Prediction for 4.4 ATeV pPb Collisions at the LHC

Forward RpPb(pT) at |η|< 0.8 & η=6.0

Charged hadron production with HIJING 2.0 @ 4.4 ATeV

GGB, J. Barrette, M. Gyulassy, P. Lévai, V. Topor Pop PRC85 024903 (2012)

RpA~ 0.35 0-20%

  • Min. Bias
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G.G. Barnaföldi: Prediction for 4.4 ATeV pPb Collisions at the LHC

Rapidity asymmetry for dAu at RHIC

  • A. Adeluy, GGB, G. Fai, P. Lévai, PRC80 (2009) 014903

Pion production with kTpQCD @ 200 AGeV Rapidity asymmatry Relation to NMF X-scaling is OK, Multiscattering changes Y(η)

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G.G. Barnaföldi: Prediction for 4.4 ATeV pPb Collisions at the LHC

  • A. Adeluy, GGB, G. Fai, P. Lévai, PRC80 (2009) 014903

Rapidity asymmetry for pBe at FNAL

Pion production with kTpQCD @ 30.7 GeV

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SLIDE 18

G.G. Barnaföldi: Prediction for 4.4 ATeV pPb Collisions at the LHC

  • A. Adeluy, GGB, G. Fai, P. Lévai, PRC80 (2009) 014903

Pion production with kTpQCD @ 8.8 ATeV

Rapidity asymmetry for dPb at LHC

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SLIDE 19

G.G. Barnaföldi: Prediction for 4.4 ATeV pPb Collisions at the LHC

HIJINGB/B 2.0: Rapidity distribution for pp & pPb

GGB, J. Barret, M. Gyulassy, P. Lévai, V. Topor Pop PRC85 024903 (2012)

Charged hadron production with HIJING 2.0 @ 4.4 ATeV

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G.G. Barnaföldi: Prediction for 4.4 ATeV pPb Collisions at the LHC

S U M M A R Y

Our choice from the menu...

...to make consistent picture from 10 AGeV to 10 ATeV

  • Test of the Cronin Effect in pA
  • How strong is the effect at LHC
  • Scaling xT, pT, etc?
  • Test of shadowing parameterizations
  • Test of existing parameterizations at low-x
  • Test of the rapidity asymmetry
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Deadline: 31st May 2012 Web: http://www.epj.org/special_issues_2.html

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SLIDE 22

B A C K U P

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G.G. Barnaföldi: Prediction for 4.4 ATeV pPb Collisions at the LHC

The Spectra and RpPb(pT) for |eta|<0.8

Charged hadron production with HIJING 2.0 @ 4.4 ATeV

GGB, J. Barrette, M. Gyulassy, P. Lévai, V. Topor Pop PRC85 024903 (2012)

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SLIDE 24

G.G. Barnaföldi: Prediction for 4.4 ATeV pPb Collisions at the LHC

Charged hadron production with HIJING 2.0 @ 4.4 ATeV

GGB, J. Barrette, M. Gyulassy, P. Lévai, V. Topor Pop PRC85 024903 (2012)

Forward Spectra & RpPb(pT) at η=6.0