Two-pion femtoscopy in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>p</mml:mi></mml:math>-Pb collisions at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msqrt><mml:msub><mml:mi>s</mml:mi><mml:mrow><mml:mi>N</mml:mi><mml:mi>N</mml:mi></mml:mrow></mml:msub></mml:msqrt><mml:mo>=</mml:mo><mml:mn>5.02</mml:mn></mml:mrow></mml:math>TeV

Adam, J.; Adamová, D.; Aggarwal, M. M.; Rinella, G. Aglieri; Agnello, M.; Agrawal, N.; Ahammed, Z.; Ahmed, I.; Ahn, S. U.; Aimo, I.; Alme, J.; Helstrup, H.; Hetland, Kristin Fanebust; Kileng, B.; Altinpinar, S.; Djuvsland, Ø.; Haaland, Ø.; Huang, M.; Lønne, Per-Ivar; Nystrand, J.; Rehman, A.; Röhrich, D.; Skjerdal, K.; Ullaland, K.; Velure, A.; Wagner, B.; Zhou, Zhuo; Arsene, I. C.; Paul, B.; Dordic, O.; Lindal, S.; Mahmood, S. M.; Milošević, J.; Qvigstad, H.; Richter, Matthias; Røed, K.; Skaali, T. B.; Tveter, Trine Spedstad; Wikne, J.; Zhao, C.; Langoy, R.; Lien, J.; Aiola, S.; Ajaz, M.; Akindinov, A.; Alam, Sk Noor; Aleksandrov, D.; Alessandro, B.; Alexandre, D.; Molina, José Rubén Alfaro

doi:10.1103/physrevc.91.034906

Cited by 51 publications

(31 citation statements)

References 61 publications

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“…10, several solutions can be adopted. One possibility is to fix the coefficients by fitting the available HBT data from ALICE [1,49,51] with Eq. 10, as shown in Fig.…”

Section: Appendix A: Comparison Of Alternative Source Volume Parametementioning

confidence: 99%

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Testing production scenarios for (anti-)(hyper-)nuclei and exotica at energies available at the CERN Large Hadron Collider

Bellini

Kalweit

2019

Phys. Rev. C

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We present a detailed comparison of coalescence and thermal-statistical models for the production of (anti-)(hyper-)nuclei in high-energy collisions. For the first time, such a study is carried out as a function of the size of the object relative to the size of the particle emitting source. Our study reveals large differences between the two scenarios for the production of objects with extended wavefunctions. While both models give similar predictions and show similar agreement with experimental data for (anti-)deuterons and (anti-) 3 He nuclei, they largely differ in their description of (anti-)hypertriton production. We propose to address experimentally the comparison of the production models by measuring the coalescence parameter systematically for different (anti-)(hyper-)nuclei in different collision systems and differentially in multiplicity. Such measurements are feasible with the current and upgraded Large Hadron Collider experiments. Our findings highlight the unique potential of ultra-relativistic heavy-ion collisions as a laboratory to clarify the internal structure of exotic QCD objects and can serve as a basis for more refined calculations in the future. arXiv:1807.05894v3 [hep-ph]

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“…10, several solutions can be adopted. One possibility is to fix the coefficients by fitting the available HBT data from ALICE [1,49,51] with Eq. 10, as shown in Fig.…”

Section: Appendix A: Comparison Of Alternative Source Volume Parametementioning

confidence: 99%

“…Comparison of different source volume parameterisations. The dotted gray line is the result of a linear fit to the ALICE HBT data[1,49,51], according to Eq. 10 with a = 0.339 fm and b = 0.128 fm.…”

mentioning

confidence: 99%

Testing production scenarios for (anti-)(hyper-)nuclei and exotica at energies available at the CERN Large Hadron Collider

Bellini

Kalweit

2019

Phys. Rev. C

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“…Thus, attempting to account for it by studying the double-ratio C data (q)/C MC (q) leads to a depletion that is apparent in the region where the Bose-Einstein enhancement disappears [35]. Another commonly used method is to parameterize the mini-jet contribution using simulation and to allow one or more parameters of the description to vary in the fit [46,47].…”

Section: Hard-process Contributionmentioning

confidence: 99%

Femtoscopy with identified charged pions in proton-lead collisions at sNN=5.02 TeV with ATLAS

Aaboud¹,

Kupčo²,

Davison³

et al. 2017

Phys. Rev. C

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Femtoscopy with identified charged pions in proton-lead collisions at√ s NN = 5.02 TeV with ATLASThe ATLAS Collaboration Bose-Einstein correlations between identified charged pions are measured for p+Pb collisions at √ s NN = 5.02 TeV using data recorded by the ATLAS detector at the LHC corresponding to a total integrated luminosity of 28 nb −1 . Pions are identified using ionization energy loss measured in the pixel detector. Two-particle correlation functions and the extracted source radii are presented as a function of collision centrality as well as the average transverse momentum (k T ) and rapidity (y ππ ) of the pair. Pairs are selected with a rapidity −2 < y ππ < 1 and with an average transverse momentum 0.1 < k T < 0.8 GeV. The effect of jet fragmentation on the two-particle correlation function is studied, and a method using oppositecharge pair data to constrain its contributions to the measured correlations is described. The measured source sizes are substantially larger in more central collisions and are observed to decrease with increasing pair k T . A correlation of the radii with the local chargedparticle density is demonstrated. The scaling of the extracted radii with the mean number of participating nucleons is also used to compare a selection of initial-geometry models. The cross-term R ol is measured as a function of rapidity, and a nonzero value is observed with 5.1σ combined significance for −1 < y ππ < 1 in the most central events.1 ATLAS uses a right-handed coordinate system with its origin at the nominal interaction point (IP) in the center of the detector and the z-axis along the beam pipe. The x-axis points from the IP to the center of the LHC ring, and the y-axis points upward. Cylindrical coordinates (r, φ) are used in the transverse plane, φ being the azimuthal angle around the beam pipe. The pseudorapidity is defined in terms of the polar angle θ as η = − ln tan(θ/2). P 8) minimum-bias events are generated at a center-of-mass energy per nucleon-nucleon pair of √ s NN = 5.02 TeV. Hp+Pb The energy and boost settings are the same as in the nominal p+Pb reconstructed simulation, except that the minimum hard-scattering transverse momentum is adjusted as described in Section 4.2. This boost is applied only in the p+Pb sample. Hpp The generator is run with all settings the same as in the p+Pb sample, except that both incoming particles are protons. P8 pp [54] The set of generator parameters from ATLAS "UE AU2-CTEQ6L1" [55] is used with P 8.209, which utilizes the CTEQ 6L1 [56] parton distribution function (PDF) from LHAPDF6 [57]. Herwig ++ pp [58]The NNLO MRST PDF [59] is used with Herwig ++ 2.7.1.

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“…the MC-Glauber model [12]) initial size of the system is overcome by a more explosive expansion and the accompanying extended lifetime due to (4) in the case of resonance decays only (band with solid lines) and UrQMD with interactions (band with dashed lines). We compare to experimental data from the ALICE Collaboration [93]. See text for details.…”

mentioning

confidence: 99%

Imprints of fluctuating proton shapes on flow in proton-lead collisions at the LHC

et al. 2017

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Results for particle production in √ s = 5.02 TeV p+Pb collisions at the Large Hadron Collider within a combined classical Yang-Mills and relativistic viscous hydrodynamic calculation are presented. We emphasize the importance of sub-nucleon scale fluctuations in the proton projectile to describe the experimentally observed azimuthal harmonic coefficients vn, demonstrating their sensitivity to the proton shape. We stress that the proton shape and its fluctuations are not free parameters in our calculations. Instead, they have been constrained using experimental data from HERA on exclusive vector meson production. Including temperature dependent shear and bulk viscosities, as well as UrQMD for the low temperature regime, we present results for mean transverse momenta, harmonic flow coefficients for charged hadrons and identified particles, as well as Hanbury-Brown-Twiss radii.

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Two-pion femtoscopy inp-Pb collisions atsNN=5.02TeV

Cited by 51 publications

References 61 publications

Testing production scenarios for (anti-)(hyper-)nuclei and exotica at energies available at the CERN Large Hadron Collider

Testing production scenarios for (anti-)(hyper-)nuclei and exotica at energies available at the CERN Large Hadron Collider

Femtoscopy with identified charged pions in proton-lead collisions at sNN=5.02 TeV with ATLAS

Imprints of fluctuating proton shapes on flow in proton-lead collisions at the LHC

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