Search results for: H. Oeschler

Items from 1 to 20 out of 172 results

article

Relative particle yield fluctuations in $$\text{ Pb--Pb }$$ Pb--Pb collisions at $$\sqrt{s_\mathrm{{NN}}} =2.76\hbox { TeV}$$ sNN=2.76TeV

S. Acharya, D. Adamová, J. Adolfsson, M. M. Aggarwal, more

The European Physical Journal C > 2019 > 79 > 3 > 1-14

First results on $$\hbox {K}/\pi $$ K/π , $$\hbox {p}/\pi $$ p/π and K/p fluctuations are obtained with the ALICE detector at the CERN LHC as a function of centrality in $$\text{ Pb--Pb }$$ Pb--Pb collisions at $$\sqrt{s_\mathrm{{NN}}} =2.76\hbox { TeV}$$ sNN=2.76TeV . The observable $$\nu _{\mathrm{dyn}}$$ νdyn , which is defined in terms of the moments of particle multiplicity distributions, is...

article

Transverse momentum spectra and nuclear modification factors of charged particles in pp, p-Pb and Pb-Pb collisions at the LHC

The ALICE collaboration, S. Acharya, F. T.-. Acosta, D. Adamová, more

Journal of High Energy Physics > 2018 > 2018 > 11 > 1-33

Abstract We report the measured transverse momentum (p_T) spectra of primary charged particles from pp, p-Pb and Pb-Pb collisions at a center-of-mass energy s N N = 5.02 $$ \sqrt{s_{\mathrm{NN}}}=5.02 $$ TeV in the kinematic range of 0.15 < p_T< 50 GeV/c and |η| < 0.8. A significant improvement of systematic uncertainties motivated the reanalysis of data in pp and Pb-Pb collisions...

article

Constraints on jet quenching in p–Pb collisions at sNN=5.02 TeV measured by the event-activity dependence of semi-inclusive hadron-jet distributions

S. Acharya, D. Adamová, J. Adolfsson, M.M. Aggarwal, more

Physics Letters B > 2018 > 783 > C > 95-113

The ALICE Collaboration reports the measurement of semi-inclusive distributions of charged-particle jets recoiling from a high-transverse momentum trigger hadron in p–Pb collisions at sNN=5.02 TeV. Jets are reconstructed from charged-particle tracks using the anti-kT algorithm with resolution parameter R=0.2 and 0.4. A data-driven statistical approach is used to correct the uncorrelated background...

article

Neutral pion and $$\eta $$ η meson production in p–Pb collisions at $$\sqrt{s_{\mathrm{NN}}}$$ sNN = 5.02 TeV

S. Acharya, D. Adamová, J. Adolfsson, M. M. Aggarwal, more

The European Physical Journal C > 2018 > 78 > 8 > 1-25

Neutral pion and $$\eta $$ η meson invariant differential yields were measured in non-single diffractive p–Pb collisions at $$\sqrt{s_{\mathrm{NN}}}$$ sNN = 5.02 TeV with the ALICE experiment at the CERN LHC. The analysis combines results from three complementary photon measurements, utilizing the PHOS and EMCal calorimeters and the Photon Conversion Method. The invariant differential yields of...

article

$$\phi $$ ϕ meson production at forward rapidity in Pb–Pb collisions at $$\sqrt{s_\mathrm {NN}}=2.76$$ sNN=2.76 TeV

S. Acharya, F.-T. Acosta, D. Adamová, J. Adolfsson, more

The European Physical Journal C > 2018 > 78 > 7 > 1-18

$$\phi $$ ϕ meson measurements provide insight into strangeness production, which is one of the key observables for the hot medium formed in high-energy heavy-ion collisions. ALICE measured $$\phi $$ ϕ production through its decay in muon pairs in Pb–Pb collisions at $$\sqrt{s_\mathrm {NN}} = 2.76$$ sNN=2.76 TeV in the intermediate transverse momentum range $$2< p_\mathrm {T}< 5$$ 2<pT<5...

article

Prompt and non-prompt $$\hbox {J}/\psi $$ J/ψ production and nuclear modification at mid-rapidity in p–Pb collisions at $$\mathbf{\sqrt{{ s}_{\text {NN}}}= 5.02}$$ sNN=5.02 TeV

S. Acharya, F. T. Acosta, D. Adamová, J. Adolfsson, more

The European Physical Journal C > 2018 > 78 > 6 > 1-17

A measurement of beauty hadron production at mid-rapidity in proton-lead collisions at a nucleon–nucleon centre-of-mass energy $$\sqrt{s_\text {NN}}=5.02$$ sNN=5.02 TeV is presented. The semi-inclusive decay channel of beauty hadrons into $$\hbox {J}/\psi $$ J/ψ is considered, where the $$\hbox {J}/\psi $$ J/ψ mesons are reconstructed in the dielectron decay channel at mid-rapidity down to transverse...

article

Λ_c⁺ production in pp collisions at s=7 $$ \sqrt{s}=7 $$ TeV and in p-Pb collisions at sNN=5.02 $$ \sqrt{s_{\mathrm{NN}}}=5.02 $$ TeV

The ALICE collaboration, S. Acharya, F. T. Acosta, D. Adamová, more

Journal of High Energy Physics > 2018 > 2018 > 4 > 1-48

Abstract The p_T-differential production cross section of prompt Λ_c⁺ charmed baryons was measured with the ALICE detector at the Large Hadron Collider (LHC) in pp collisions at s=7 $$ \sqrt{s}=7 $$ TeV and in p-Pb collisions at sNN=5.02 $$ \sqrt{s_{\mathrm{NN}}}=5.02 $$ TeV at midrapidity. The Λ_c⁺ and Λ¯c¯ $$ {\overline{\varLambda}}_{\overline{\mathrm{c}}} $$ were reconstructed in the hadronic...

article

$$\pi ^{0}$$ π0 and $$\eta $$ η meson production in proton-proton collisions at $$\sqrt{s}=8$$ s=8 TeV

S. Acharya, J. Adam, D. Adamová, J. Adolfsson, more

The European Physical Journal C > 2018 > 78 > 3 > 1-26

An invariant differential cross section measurement of inclusive $$\pi ^{0}$$ π0 and $$\eta $$ η meson production at mid-rapidity in pp collisions at $$\sqrt{s}=8$$ s=8 TeV was carried out by the ALICE experiment at the LHC. The spectra of $$\pi ^{0}$$ π0 and $$\eta $$ η mesons were measured in transverse momentum ranges of $$0.3<p_{ \text{ T }} <35$$ 0.3<pT<35 $$\text{ GeV/c }$$...

article

Constraining the magnitude of the Chiral Magnetic Effect with Event Shape Engineering in Pb–Pb collisions at sNN=2.76 TeV

S. Acharya, J. Adam, D. Adamová, J. Adolfsson, more

Physics Letters B > 2018 > 777 > C > 151-162

In ultrarelativistic heavy-ion collisions, the event-by-event variation of the elliptic flow v2 reflects fluctuations in the shape of the initial state of the system. This allows to select events with the same centrality but different initial geometry. This selection technique, Event Shape Engineering, has been used in the analysis of charge-dependent two- and three-particle correlations in Pb–Pb...

article

J/ψ production as a function of charged-particle pseudorapidity density in p–Pb collisions at sNN=5.02TeV

D. Adamová, M.M. Aggarwal, G. Aglieri Rinella, M. Agnello, more

Physics Letters B > 2018 > 776 > C > 91-104

We report measurements of the inclusive J/ψ yield and average transverse momentum as a function of charged-particle pseudorapidity density dNch/dη in p–Pb collisions at sNN=5.02TeV with ALICE at the LHC. The observables are normalised to their corresponding averages in non-single diffractive events. An increase of the normalised J/ψ yield with normalised dNch/dη, measured at mid-rapidity, is observed...

article

First measurement of jet mass in Pb–Pb and p–Pb collisions at the LHC

S. Acharya, D. Adamová, M.M. Aggarwal, G. Aglieri Rinella, more

Physics Letters B > 2018 > 776 > C > 249-264

This letter presents the first measurement of jet mass in Pb–Pb and p–Pb collisions at sNN=2.76 TeV and sNN=5.02 TeV, respectively. Both the jet energy and the jet mass are expected to be sensitive to jet quenching in the hot Quantum Chromodynamics (QCD) matter created in nuclear collisions at collider energies. Jets are reconstructed from charged particles using the anti-kT jet algorithm and resolution...

article

Charged-particle multiplicity distributions over a wide pseudorapidity range in proton-proton collisions at $$\sqrt{s}=$$ s = 0.9, 7, and 8 TeV

S. Acharya, D. Adamová, J. Adolfsson, M. M. Aggarwal, more

The European Physical Journal C > 2017 > 77 > 12 > 1-23

We present the charged-particle multiplicity distributions over a wide pseudorapidity range ( $$-\,3.4<\eta <5.0$$ - 3.4 < η < 5.0 ) for pp collisions at $$\sqrt{s}= 0.9, 7$$ s = 0.9 , 7 , and 8 TeV at the LHC. Results are based on information from the Silicon Pixel Detector and the Forward Multiplicity Detector of ALICE, extending the pseudorapidity coverage of...

article

Measuring KS0K± interactions using Pb–Pb collisions at sNN=2.76 TeV

S. Acharya, D. Adamová, J. Adolfsson, M.M. Aggarwal, more

Physics Letters B > 2017 > 774 > C > 64-77

We present the first ever measurements of femtoscopic correlations between the KS0 and K^± particles. The analysis was performed on the data from Pb–Pb collisions at sNN=2.76 TeV measured by the ALICE experiment. The observed femtoscopic correlations are consistent with final-state interactions proceeding via the a0(980) resonance. The extracted kaon source radius and correlation strength parameters...

article

ALICE Collaboration

S. Acharya, J. Adam, D. Adamová, J. Adolfsson, more

Nuclear Physics A > 2017 > 967 > C > 932-941

article

Linear and non-linear flow mode in Pb–Pb collisions at sNN=2.76 TeV

S. Acharya, D. Adamová, J. Adolfsson, M.M. Aggarwal, more

Physics Letters B > 2017 > 773 > C > 68-80

The second and the third order anisotropic flow, V2 and V3, are mostly determined by the corresponding initial spatial anisotropy coefficients, ε2 and ε3, in the initial density distribution. In addition to their dependence on the same order initial anisotropy coefficient, higher order anisotropic flow, Vn (n>3), can also have a significant contribution from lower order initial anisotropy coefficients,...

article

Measurement of deuteron spectra and elliptic flow in Pb–Pb collisions at $$\sqrt{s_{\mathrm {NN}}}$$ sNN = 2.76 TeV at the LHC

S. Acharya, D. Adamová, J. Adolfsson, M. M. Aggarwal, more

The European Physical Journal C > 2017 > 77 > 10 > 1-20

The transverse momentum ($$p_\mathrm{T} $$ pT ) spectra and elliptic flow coefficient ($$v_{2}$$ v2 ) of deuterons and anti-deuterons at mid-rapidity ($$|y|<0.5$$ |y|<0.5 ) are measured with the ALICE detector at the LHC in Pb–Pb collisions at $$\sqrt{s_{\mathrm {NN}}}$$ sNN = 2.76 TeV. The measurement of the $$p_\mathrm{T} $$ pT spectra of (anti-)deuterons is done up to 8 GeV$$/c$$ /c in...

article

Centrality dependence of the pseudorapidity density distribution for charged particles in Pb–Pb collisions at sNN=5.02 TeV

J. Adam, D. Adamová, M.M. Aggarwal, G. Aglieri Rinella, more

Physics Letters B > 2017 > 772 > C > 567-577

We present the charged-particle pseudorapidity density in Pb–Pb collisions at sNN=5.02 TeV in centrality classes measured by ALICE. The measurement covers a wide pseudorapidity range from −3.5 to 5, which is sufficient for reliable estimates of the total number of charged particles produced in the collisions. For the most central (0–5%) collisions we find 21400±1300, while for the most peripheral...

article

Searches for transverse momentum dependent flow vector fluctuations in Pb-Pb and p-Pb collisions at the LHC

The ALICE collaboration, S. Acharya, D. Adamová, J. Adolfsson, more

Journal of High Energy Physics > 2017 > 2017 > 9 > 1-33

Abstract The measurement of azimuthal correlations of charged particles is presented for Pb-Pb collisions at s N N = 2.76 $$ \sqrt{s_{\mathrm{NN}}}=2.76 $$ TeV and p-Pb collisions at s N N = 5.02 $$ \sqrt{s_{\mathrm{NN}}}=5.02 $$ TeV with the ALICE detector at the CERN Large Hadron Collider. These correlations are measured for the second, third and fourth order flow...

article

Erratum to: Production of $${\pi ^0}$$ π 0 and $$\eta $$ η mesons up to high transverse momentum in pp collisions at 2.76 TeV

S. Acharya, D. Adamová, M. M. Aggarwal, G. Aglieri Rinella, more

The European Physical Journal C > 2017 > 77 > 9 > 1-7

The online version of the original article can be found under doi: 10.1140/epjc/s10052-017-4890-x .

article

Ratios of strange hadrons to pions in collisions of large and small nuclei

H. Oeschler, J. Cleymans, B. Hippolyte, K. Redlich, more

The European Physical Journal C > 2017 > 77 > 9 > 1-5

The dependence of particle production on the size of the colliding nuclei is analyzed in terms of the thermal model using the canonical ensemble. The concept of strangeness correlation in clusters of sub-volume $$V_c$$ V c is used to account for the suppression of strangeness. A systematic analysis is presented of the predictions of the thermal model for particle production in collisions...

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Search results for: H. Oeschler

Relative particle yield fluctuations in $$\text{ Pb--Pb }$$ Pb--Pb collisions at $$\sqrt{s_\mathrm{{NN}}} =2.76\hbox { TeV}$$ sNN=2.76TeV

Transverse momentum spectra and nuclear modification factors of charged particles in pp, p-Pb and Pb-Pb collisions at the LHC

Constraints on jet quenching in p–Pb collisions at sNN=5.02 TeV measured by the event-activity dependence of semi-inclusive hadron-jet distributions

Neutral pion and $$\eta $$ η meson production in p–Pb collisions at $$\sqrt{s_{\mathrm{NN}}}$$ sNN = 5.02 TeV

$$\phi $$ ϕ meson production at forward rapidity in Pb–Pb collisions at $$\sqrt{s_\mathrm {NN}}=2.76$$ sNN=2.76 TeV

Prompt and non-prompt $$\hbox {J}/\psi $$ J/ψ production and nuclear modification at mid-rapidity in p–Pb collisions at $$\mathbf{\sqrt{{ s}_{\text {NN}}}= 5.02}$$ sNN=5.02 TeV

Λ_c⁺ production in pp collisions at s=7 $$ \sqrt{s}=7 $$ TeV and in p-Pb collisions at sNN=5.02 $$ \sqrt{s_{\mathrm{NN}}}=5.02 $$ TeV

$$\pi ^{0}$$ π0 and $$\eta $$ η meson production in proton-proton collisions at $$\sqrt{s}=8$$ s=8 TeV

Constraining the magnitude of the Chiral Magnetic Effect with Event Shape Engineering in Pb–Pb collisions at sNN=2.76 TeV

J/ψ production as a function of charged-particle pseudorapidity density in p–Pb collisions at sNN=5.02TeV

First measurement of jet mass in Pb–Pb and p–Pb collisions at the LHC

Charged-particle multiplicity distributions over a wide pseudorapidity range in proton-proton collisions at $$\sqrt{s}=$$ s = 0.9, 7, and 8 TeV

Measuring KS0K± interactions using Pb–Pb collisions at sNN=2.76 TeV

ALICE Collaboration

Linear and non-linear flow mode in Pb–Pb collisions at sNN=2.76 TeV

Measurement of deuteron spectra and elliptic flow in Pb–Pb collisions at $$\sqrt{s_{\mathrm {NN}}}$$ sNN = 2.76 TeV at the LHC

Centrality dependence of the pseudorapidity density distribution for charged particles in Pb–Pb collisions at sNN=5.02 TeV

Searches for transverse momentum dependent flow vector fluctuations in Pb-Pb and p-Pb collisions at the LHC

Erratum to: Production of $${\pi ^0}$$ π 0 and $$\eta $$ η mesons up to high transverse momentum in pp collisions at 2.76 TeV

Ratios of strange hadrons to pions in collisions of large and small nuclei

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