The Unpolitical

Cacciari, Massimo; Carrera, Alessandro; Verdicchio, Massimo

doi:10.5422/fso/9780823230037.001.0001

Cited by 12 publications

(12 citation statements)

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“…In order to quantify the enhancement for heavy mesons expected from the blast-wave, we determine the R dAu . Here R dAu is the ratio of the blast-wave heavy meson spectra divided by the expected heavy meson spectra from the Fixed-Order-Next-to-Leading-Log (FONLL) calculation of the heavy meson spectra in p+p collisions [41][42][43]. FONLL calculations compare well with a wide variety of heavy flavor data in p+p collisions at √ s = 200 GeV [31,32,44,45].…”

Section: Methodsmentioning

confidence: 98%

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Possible evidence for radial flow of heavy mesons in d+Au collisions

Sickles

2014

Physics Letters B

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Recent measurements of particle correlations and the spectra of hadrons at both RHIC and the LHC are suggestive of hydrodynamic behavior in very small collision systems (p+Pb, d+Au and possibly high multiplicity p+p collisions at the LHC). The measurements in p+Pb and d+Au collisions are both qualitatively and quantitatively similar to what is seen in heavy ion collisions where low viscosity hot nuclear matter is formed. While light quarks and gluons are thought to make up the bulk matter, one of the most surprising results in heavy ion collisions is that charm quarks also have a large v2. Measurements of the transverse momentum spectra of electrons from the decay of D and B mesons in d+Au collisions show an enhancement in central collisions relative to p+p collisions. We employ the blast-wave model to determine if the flow of heavy quarks in d+Au and p+Pb collisions is able to explain the enhancement observed in the data. We find a reasonable description of the data with blast-wave parameters extracted from fits to the light hadron spectra, suggesting hydrodynamics as a possible explanation.

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Section: Methodsmentioning

confidence: 98%

“…We use the default values from Ref. [43] of m c = 1.5 GeV/c 2 , m b = 4.75 GeV/c 2 and µ R = µ F = m 2 + p 2 T where µ R and µ F are the renormalization and factorization scales, respectively. We normalize the blast-wave spectra to have the same number of D and B mesons as the FONLL calculation.…”

Section: Methodsmentioning

confidence: 99%

Possible evidence for radial flow of heavy mesons in d+Au collisions

Sickles

2014

Physics Letters B

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“…resolution Res( Obs 2 ) is calculated through the standard three subevents method [23,24], with the other two event planes being (i) the second order event plane determined from central-arm tracks, restricted to low p T (0.2 GeV/c < p T < 2.0 GeV/c) to minimize contribution from jet fragments; and (ii) the first order event plane measured with spectator neutrons in the shower-maximum detector on the Au-going side (⌘ < -6.5) [24,25]. The systematic uncertainties on the v 2 of charged hadrons are mainly from the tracking background and pile-up e↵ects, as described above, and also from the di↵erence in v 2 from di↵erent event plane determinations.…”

Section: Discussionmentioning

confidence: 99%

“…The blast-wave fit parameters from the light hadron spectra were used to determine a blast-wave prediction for the D and B meson spectra. These spectra were compared to theoretical calculations from Fixed-Order-Next-to-Leading-Log (FONLL) calculations [23,24,25] of D and B spectra. The resulting nuclear modification factors for D and B mesons are shown in Fig.…”

Section: Identified Particle Measurements In P+amentioning

confidence: 99%

Experimental results on p(d)+A collisions at RHIC and the LHC

Sickles

2014

Nuclear Physics A

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Recent experimental results at both the LHC and RHIC show evidence for hydrodynamic behavior in proton-nucleus and deuteronnucleus collisions (p+A). This unexpected finding has prompted new measurements in p+A collisions in order to understand whether matter with similar properties is created in A+A and p+A collisions or whether another explanation is needed. In this proceedings, we will discuss the new experimental data and its interpretation within the context of heavy-ion collisions.

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“…These are are qualitatively in the same range as the values obtained in more sophisticated extractions from comparisons to experimental data. Furthermore, we compute the collimator function R = 0.4 jets and the power of the steeply falling heavy-quark spectrum n = 5, that was extracted from a fit of the jet data [37]. With these choices m * 1.5 GeV, and therefore the charm quark (m = 1.3 GeV) can be considered light while the bottom quark (m = 5 GeV) is heavy.…”

Section: Numericsmentioning

confidence: 99%

Higher-order corrections to heavy-quark jet quenching

Blok¹,

Tywoniuk²

2019

Eur. Phys. J. C

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We calculate higher-order corrections to the quenching factor of heavy-quark jets due to hard, in-medium splittings in the framework of the BDMPS-Z formalism. These corrections turn out to be sensitive to a single mass-scale m * = (qL) 1 /2 , whereq is the medium transport coefficient and L the path length, and allow to draw a distinction between the way light, with m < m * (in contrast to massless m = 0), and genuinely heavy, with m > m * , quark jets are quenched in the medium. We show that the corrections to the quenching factor at high energies are double-logarithmic and qualitatively of the same order as for the massless quark jet.

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The Unpolitical

Cited by 12 publications

References 0 publications

Possible evidence for radial flow of heavy mesons in d+Au collisions

Possible evidence for radial flow of heavy mesons in d+Au collisions

Experimental results on p(d)+A collisions at RHIC and the LHC

Higher-order corrections to heavy-quark jet quenching

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