Production of high-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>p</mml:mi></mml:mrow><mml:mrow><mml:mi>t</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math>jets in hadron-nucleus collisions

Stewart, Charles J.; Ziemiński, A.; Blessing, S.; Crittenden, R.R.; Draper, P.; Dzierba, A.; Heinz, R.; Krider, J.; Marshall, T.; Martin, J. F.; Sambamurti, A.; Smith, Paul T.; Sulanke, T.; Gomez, R.; Dauwe, L. J.; Haggerty, H.; Malamud, E.; Nikolić, M.; Hagopian, S.; Abrams, R.; Ares, José Luis Andrés; Goldberg, Haim; Halliwell, C.; Margulies, S.; McLeod, D.; Salminen, Antti; Solomon, J.; Wu, G.; Ellsworth, R. W.; Goodman, J. A.; Gupta, S. Das; Yodh, G.; Watts, T.; Abramov, V.; Antipov, Yu.M.; Baldin, B.; Denisov, S. P.; Glebov, V. Yu.; Gorin, Yu.P.; Kryshkin, V.; Petrukhin, A.I.; Polovnikov, S.A.; Sulyaev, R.M.

doi:10.1103/physrevd.42.1385

Cited by 21 publications

(8 citation statements)

References 25 publications

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“…Fluctuations in the underlying event of heavy ion collisions are known to cause a false apparent jet production, if a jet reconstruction algorithm is applied without proper handling of the background [12]. At the collision energy of RHIC, the intrinsic jet production rate is far below the high-p T tail of the background fluctuation across a large p T range that is statistically accessible to RHIC.…”

Section: Introductionmentioning

confidence: 99%

Direct jet reconstruction in and Cu + Cu collisions at PHENIX

Lai

2011

Nuclear Physics A

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Section: Introductionmentioning

confidence: 99%

Direct jet reconstruction in and Cu + Cu collisions at PHENIX

Lai

2011

Nuclear Physics A

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“…A direct application of jet reconstruction algorithms to heavy ion collisions is known to give rise to false apparent jet production rates [7]. Unlike at LHC, the collision energy at RHIC Fig.…”

mentioning

confidence: 99%

Probing medium-induced energy loss with direct jet reconstruction in p+p and Cu+Cu collisions at PHENIX

Lai

2009

Nuclear Physics A

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We present the application of a new jet reconstruction algorithm that uses a Gaussian filter to locate and reconstruct the jet energy to p + p and heavy ion data from the PHENIX detector. This algorithm is combined with a fake jet rejection scheme that provides efficient jet reconstruction with an acceptable fake rate. We show our first results on the measured jet spectra, and on jet-jet angular correlation in p+p and Cu+Cu collisions.The study of jet physics at RHIC plays an important role in understanding the parton-medium interaction, in-medium fragmentation properties, and applied to the RHIC spin program, also the study of the proton structure. We therefore set out to systematically investigate the feasibility of, and the appropriate approach of performing jet reconstruction using a limited aperture detector like the PHENIX central arms [1] and including heavy ion collision systems. Neither is a wellstudied aspect of jet reconstruction, and both have been considered as challenging [2].We observed that the flat weighting in traditional jet reconstruction algorithms is particularly prone to fluctuations at large angle. A similiar effect also exists at the PHENIX central arm edges, here due to the lack of balancing fragments. Both issues can be effectively addressed by a nonflat weighting that smoothly dampens large angle fragments. Furthermore, the energy flow variable as proposed by Sterman et al. [3] suggests that angular convolution of the event p T

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“…1 the NLO QCD calculations with the CTEQ6M parton distribution functions at the factorization and renormalization scales equal to the transverse momentum (µ R = µ F = p T ) demonstrate a satisfactory agreement with the data. Figure 2(a) shows comparison of the inclusive cross sections measured by the STAR Collaboration with the FNAL [35] and ISR [36] data obtained at lower energies, √ s = 38.8, 45, 63 GeV. As seen from this Figure, the strong dependence of the cross sections on collision energy √ s increases with transverse momentum p T .…”

Section: Jets At Rhicmentioning

confidence: 95%

“…z-Scaling: Inclusive Jet Spectra... M. Tokarev [35], AFS [36], and STAR [20] Collaborations. The UA1 data [37] for pp collisions are shown for comparison.…”

Section: Pos(baldin Ishepp Xxi)065mentioning

confidence: 99%

Z-Scaling: inclusive jet spectra at RHIC, TEVATRON and LHC

Tokarev¹,

Dedovich²,

Zborovský³

2013

Proceedings of XXI International Baldin Seminar on High Energy Physics Problems — PoS(Baldin ISHEPP XXI)

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Self-similarity of jet production in pp and pp collisions is studied in the framework of z-scaling. Inclusive jet transverse momentum distributions measured by the STAR Collaboration at RHIC, the CDF and D∅ Collaborations at Tevatron and the CMS and ATLAS Collaborations at LHC are analyzed. The experimental spectra are compared with next-to-leading order QCD calculations in p T -and z-presentations. It is shown that self-similar features of jet cross sections manifested by z-scaling give strong restriction on scaling function ψ(z) at high z. New results on the energy and angular independence and the asymptotic behavior of ψ(z) are discussed. The obtained results are considered as confirmation of self-similarity of jet production, fractality of hadron structure and locality of constituent interactions at small scales.

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Production of high-ptjets in hadron-nucleus collisions

Cited by 21 publications

References 25 publications

Direct jet reconstruction in and Cu + Cu collisions at PHENIX

Direct jet reconstruction in and Cu + Cu collisions at PHENIX

Probing medium-induced energy loss with direct jet reconstruction in p+p and Cu+Cu collisions at PHENIX

Z-Scaling: inclusive jet spectra at RHIC, TEVATRON and LHC

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