QCD at moderately large distances

Dokshitzer, Yuri L.

doi:10.1016/s0375-9474(02)01185-5

Cited by 9 publications

(10 citation statements)

References 8 publications

(12 reference statements)

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“…If α s (Q 2 ) is larger than α max s = 1.0 it is set to α max s . This cutoff procedure is in line with a soft average of α s given by the universality hypothesis [37,43]. We checked that our results of the energy loss are not very sensitive on the exact value of Λ or α max s since the contribution from the soft part of the process is very small.…”

Section: Modification Of the Cross Sectionsupporting

confidence: 83%

Elliptic flow and energy loss of heavy quarks in ultrarelativistic heavy ion collisions

et al. 2011

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The space-time propagation of heavy quarks in ultra-relativistic heavy ion collisions is studied within the partonic transport model Boltzmann Approach of MultiParton Scatterings (BAMPS). In this model heavy quarks interact with the partonic medium via binary scatterings. The cross sections for these interactions are calculated with leading order perturbative QCD, but feature a more precise Debye screening derived within the hard thermal loop approximation and obey the running of the coupling. Within this framework the elliptic flow and the nuclear modification factor of heavy quarks are computed for RHIC and LHC energies and compared to available experimental data. It is found that binary scatterings alone cannot reproduce the data and, therefore, radiative corrections have to be taken into account.

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Section: Modification Of the Cross Sectionsupporting

confidence: 83%

Elliptic flow and energy loss of heavy quarks in ultrarelativistic heavy ion collisions

et al. 2011

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“…The same is valid for the analyticity which is relevant for the scattering amplitudes of the observable particles only. As it was noted in [1], it is not clear what these fundamental principles imply for the confined objects.…”

Section: Introductionmentioning

confidence: 98%

Reflective Scattering From Unitarity Saturation

Troshin

Tyurin

2007

Int. J. Mod. Phys. A

141

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Proceeding from optical analogy we propose a new physical interpretation of unitarity saturation leading to antishadowing as a reflective scattering. This interpretation of antishadowing is related to the non-perturbative aspects of strong interactions and follows from the specific property of the unitarity saturation when elastic S-matrix S(s, b)| b=0 → −1 at s → ∞. The analogy with Berry phase and experimental consequences of the proposed interpretation as reflective scattering at the LHC and in the cosmic rays studies are discussed.

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“…is running and constrained by the sum rule advanced by Dokshitzer [24]. Both these improvements increased the cross section especially for small momentum transfers and reduced therefore the necessary K (used in our previous work [5]) factor to 2.…”

Section: Introductionmentioning

confidence: 99%

Competition of heavy quark radiative and collisional energy loss in deconfined matter

Gossiaux

Aichelin

Gousset

et al. 2010

J. Phys. G: Nucl. Part. Phys.

158

168

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Abstract. We extend our recently advanced model on collisional energy loss of heavy quarks in a quark gluon plasma (QGP) by including radiative energy loss. We discuss the approach and present first preliminary results, including a comparison of the role of both types of energy loss for experimental data. We draw the conclusion that the present nuclear modification factor R AA data on non-photonic single electrons does not permit to "select" between this two types of energy-loss mechanisms.

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QCD at moderately large distances

Cited by 9 publications

References 8 publications

Elliptic flow and energy loss of heavy quarks in ultrarelativistic heavy ion collisions

Elliptic flow and energy loss of heavy quarks in ultrarelativistic heavy ion collisions

Reflective Scattering From Unitarity Saturation

Competition of heavy quark radiative and collisional energy loss in deconfined matter

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