Alexander Schmah

activity

20102025

most citedObservation of the antimatter helium-4 nucleus

195 citations · 784 across the 17 of their papers we have counts for

collaborators

17 papers

nucl-ex2025★ 3 cited

Femtoscopic study of the proton-proton and proton-deuteron systems in heavy-ion collisions at the LHC

ALICE Collaboration

This work reports femtoscopic correlations of p $-$ p ( $p ˉ - p ˉ$ ) and p $-$ d ( $p ˉ - d ˉ$ ) pairs measured in Pb $-$ Pb collisions at center-of-mass energy…

hep-ex2025★ 1 cited

D $^{0}$ -meson-tagged jet axes difference in proton-proton collisions at $s = 5.02$ TeV

ALICE Collaboration

Heavy-flavor quarks produced in proton--proton (pp) collisions provide a unique opportunity to investigate the evolution of quark-initiated parton showers from initial hard scatter…

nucl-ex2024★ 1 cited

First measurement of symmetric cumulants of hexagonal flow harmonics in Pb $-$ Pb collisions at $s_{NN}$ = 5.02 TeV

ALICE Collaboration

Correlations between event-by-event fluctuations of anisotropic flow harmonics are measured in Pb $-$ Pb collisions at a center-of-mass energy per nucleon pair of 5.02 TeV, as record…

nucl-ex2024★ 2 cited

Measurements of differential two-particle number and transverse momentum correlation functions in pp collisions at $s$ = 13 TeV

ALICE Collaboration

Differential two-particle normalized cumulants ( $R_{2}$ ) and transverse momentum correlations ( $P_{2}$ ) are measured as a function of the relative pseudorapidity and azimuthal angle di…

hep-ex2024

First measurement of $D_{s1} (1^{+}) (2536)^{+}$ and $D_{s2}^{*} (2^{+}) (2573)^{+}$ production in proton-proton collisions at $s = 13$ TeV at the LHC

ALICE Collaboration

The production yields of the orbitally excited charm-strange mesons $D_{s1} (1^{+}) (2536)^{+}$ and $D_{s2}^{*} (2^{+}) (2573)^{+}$ were measured for the first time in pro…

nucl-ex2023★ 35 cited

Accessing the strong interaction between $Λ$ baryons and charged kaons with the femtoscopy technique at the LHC

ALICE Collaboration

The interaction between $Λ$ baryons and kaons/antikaons is a crucial ingredient for the strangeness $S = 0$ and $S = - 2$ sector of the meson $-$ baryon interaction at low energies. In pa…

hep-ex2023★ 3 cited

Measurement of inclusive J/ $ψ$ pair production cross section in pp collisions at $s = 13$ TeV

ALICE Collaboration

The production cross section of inclusive J/ $ψ$ pairs in pp collisions at a centre-of-mass energy $s = 13$ TeV is measured with ALICE. The measurement is performed for J/ $ψ$ …

nucl-ex2023★ 7 cited

Higher-order correlations between different moments of two flow amplitudes in Pb $-$ Pb collisions at $s_{NN} = 5.02$ TeV

ALICE Collaboration

The correlations between different moments of two flow amplitudes, extracted with the recently developed asymmetric cumulants, are measured in Pb $-$ Pb collisions at $\sqrt{s_{\rm N…

nucl-ex2023★ 2 cited

Inclusive and multiplicity dependent production of electrons from heavy-flavour hadron decays in pp and p $-$ Pb collisions

ALICE Collaboration

Measurements of the production of electrons from heavy-flavour hadron decays in pp collisions at $s = 13$ TeV at midrapidity with the ALICE detector are presented down to a…

nucl-ex2022

Multiplicity dependence of charged-particle jet production in pp collisions at $s = 13$ TeV

ALICE Collaboration

The multiplicity dependence of jet production in pp collisions at the centre-of-mass energy of $s = 13 TeV$ is studied for the first time. Jets are reconstructed f…

nucl-ex2017★ 69 cited

Measurement of hyper triton lifetime in Au + Au collisions at the Relativistic Heavy-Ion Collider

The STAR Collaboration

A precise measurement of the hypertriton lifetime is presented. In this letter, the mesonic decay modes $_{Λ}^{3} H \to^{3} He + π^{-}$ and $\mathrm{{^3_Λ}H \rightarrow d…

nucl-ex2017★ 62 cited

Beam Energy Dependence of Jet-Quenching Effects in Au+Au Collisions at $s_{_{NN}}$ = 7.7, 11.5, 14.5, 19.6, 27, 39, and 62.4 GeV

STAR Collaboration, L. Adamczyk, J. R. Adams +338

We report measurements of the nuclear modification factor, $R_{CP}$ , for charged hadrons as well as identified $π^{+ (-)}$ , $K^{+ (-)}$ , and $p (p)$ for Au+Au col…

nucl-ex2017★ 102 cited

Measurements of jet quenching with semi-inclusive hadron+jet distributions in Au+Au collisions at $s_{N N}$ = 200 GeV

STAR Collaboration, L. Adamczyk, J. K. Adkins +341

The STAR Collaboration reports the measurement of semi-inclusive distributions of charged-particle jets recoiling from a high transverse momentum hadron trigger, in central and per…

nucl-ex2014★ 83 cited

Measurement of longitudinal spin asymmetries for weak boson production in polarized proton-proton collisions at RHIC

STAR Collaboration, L. Adamczyk, J. K. Adkins +355

We report measurements of single- and double- spin asymmetries for $W^{\pm}$ and $Z / γ^{*}$ boson production in longitudinally polarized $p + p$ collisions at $s = 510$ GeV by th…

nucl-ex2012★ 103 cited

J/ $ψ$ production at high transverse momenta in p+p and Au+Au collisions at sqrt(s_{NN}) = 200 GeV

STAR Collaboration

We report $J / ψ$ spectra for transverse momenta $p_{T}$ > 5 GeV/ $c$ at mid-rapidity in p+p and Au+Au collisions at sqrt(s_{NN}) = 200 GeV.The inclusive $J / ψ$ spectrum and the extracted…

nucl-ex2011★ 195 cited

Observation of the antimatter helium-4 nucleus

STAR Collaboration

High-energy nuclear collisions create an energy density similar to that of the universe microseconds after the Big Bang, and in both cases, matter and antimatter are formed with co…

nucl-ex2010★ 116 cited

Strange and Multi-strange Particle Production in Au+Au Collisions at $s_{N N}$ = 62.4 GeV

The STAR Collaboration, M. M. Aggarwal

We present results on strange and multi-strange particle production in Au+Au collisions at $s_{N N} = 62.4$ GeV as measured with the STAR detector at RHIC. Mid-rapidity transve…

Femtoscopic study of the proton-proton and proton-deuteron systems in heavy-ion collisions at the LHC

D0-meson-tagged jet axes difference in proton-proton collisions at s​=5.02 TeV

First measurement of symmetric cumulants of hexagonal flow harmonics in Pb−Pb collisions at sNN​​ = 5.02 TeV

Measurements of differential two-particle number and transverse momentum correlation functions in pp collisions at s​ = 13 TeV

First measurement of Ds1​(1+)(2536)+ and Ds2∗​(2+)(2573)+ production in proton-proton collisions at s​=13 TeV at the LHC

Accessing the strong interaction between Λ baryons and charged kaons with the femtoscopy technique at the LHC

Measurement of inclusive J/ψ pair production cross section in pp collisions at s​=13 TeV

Higher-order correlations between different moments of two flow amplitudes in Pb−Pb collisions at sNN​​=5.02 TeV

Inclusive and multiplicity dependent production of electrons from heavy-flavour hadron decays in pp and p−Pb collisions

Multiplicity dependence of charged-particle jet production in pp collisions at s​=13 TeV

Measurement of hyper triton lifetime in Au + Au collisions at the Relativistic Heavy-Ion Collider

Beam Energy Dependence of Jet-Quenching Effects in Au+Au Collisions at sNN​​​ = 7.7, 11.5, 14.5, 19.6, 27, 39, and 62.4 GeV

Measurements of jet quenching with semi-inclusive hadron+jet distributions in Au+Au collisions at sNN​​ = 200 GeV

Measurement of longitudinal spin asymmetries for weak boson production in polarized proton-proton collisions at RHIC

J/ψ production at high transverse momenta in p+p and Au+Au collisions at sqrt(s_{NN}) = 200 GeV

Observation of the antimatter helium-4 nucleus

Strange and Multi-strange Particle Production in Au+Au Collisions at sNN​​ = 62.4 GeV

D $^{0}$ -meson-tagged jet axes difference in proton-proton collisions at $s = 5.02$ TeV

First measurement of symmetric cumulants of hexagonal flow harmonics in Pb $-$ Pb collisions at $s_{NN}$ = 5.02 TeV

Measurements of differential two-particle number and transverse momentum correlation functions in pp collisions at $s$ = 13 TeV

First measurement of $D_{s1} (1^{+}) (2536)^{+}$ and $D_{s2}^{*} (2^{+}) (2573)^{+}$ production in proton-proton collisions at $s = 13$ TeV at the LHC

Accessing the strong interaction between $Λ$ baryons and charged kaons with the femtoscopy technique at the LHC

Measurement of inclusive J/ $ψ$ pair production cross section in pp collisions at $s = 13$ TeV

Higher-order correlations between different moments of two flow amplitudes in Pb $-$ Pb collisions at $s_{NN} = 5.02$ TeV

Inclusive and multiplicity dependent production of electrons from heavy-flavour hadron decays in pp and p $-$ Pb collisions

Multiplicity dependence of charged-particle jet production in pp collisions at $s = 13$ TeV

Beam Energy Dependence of Jet-Quenching Effects in Au+Au Collisions at $s_{_{NN}}$ = 7.7, 11.5, 14.5, 19.6, 27, 39, and 62.4 GeV

Measurements of jet quenching with semi-inclusive hadron+jet distributions in Au+Au collisions at $s_{N N}$ = 200 GeV

J/ $ψ$ production at high transverse momenta in p+p and Au+Au collisions at sqrt(s_{NN}) = 200 GeV

Strange and Multi-strange Particle Production in Au+Au Collisions at $s_{N N}$ = 62.4 GeV