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1.
New particle formation from isoprene under upper-tropospheric conditions / Shen, Jiali (Helsinki U.) ; Russell, Douglas M (Frankfurt U., FIAS) ; DeVivo, Jenna (Carnegie Mellon U.) ; Kunkler, Felix (Mainz, Max Planck Inst.) ; Baalbaki, Rima (Helsinki U.) ; Mentler, Bernhard (Innsbruck U.) ; Scholz, Wiebke (Innsbruck U.) ; Yu, Wenjuan (Helsinki U.) ; Caudillo-Plath, Lucía (Frankfurt U., FIAS) ; Sommer, Eva (CERN ; Vienna U.) et al.
Abstract Aircraft observations have revealed ubiquitous new particle formation in the tropical upper troposphere over the Amazon1,2 and the Atlantic and Pacific oceans3,4. Although the vapours involved remain unknown, recent satellite observations have revealed surprisingly high night-time isoprene mixing ratios of up to 1 part per billion by volume (ppbv) in the tropical upper troposphere5. [...]
2024 - 9 p. - Published in : Nature 636 (2024) 115-123 Fulltext: PDF; External link: Interactions.org
2.
Rapid growth of new atmospheric particles by nitric acid and ammonia condensation / Wang, Mingyi (Carnegie Mellon U.) ; Kong, Weimeng (Caltech) ; Marten, Ruby (PSI, Villigen) ; He, Xu-Cheng (Helsinki U.) ; Chen, Dexian (Carnegie Mellon U.) ; Pfeifer, Joschka (CERN) ; Heitto, Arto (Kuopio U.) ; Kontkanen, Jenni (Helsinki U.) ; Dada, Lubna (Helsinki U.) ; Kürten, Andreas (Goethe U., Frankfurt (main)) et al.
Measurements in the CLOUD chamber at CERN show that the rapid condensation of ammonia and nitric acid vapours could be important for the formation and survival of new particles in wintertime urban conditions, contributing to urban smog..
2020 - 20 p. - Published in : Nature 581 (2020) 184-189 Fulltext from Publisher: PDF;
3.
Synergistic HNO$_{3}$–H$_{2}$SO$_{4}$–NH$_{3}$ upper tropospheric particle formation / Wang, Mingyi ; Xiao, Mao ; Bertozzi, Barbara ; Marie, Guillaume ; Rörup, Birte ; Schulze, Benjamin ; Bardakov, Roman ; He, Xu-Cheng ; Shen, Jiali ; Scholz, Wiebke et al.
New particle formation in the upper free troposphere is a major global source of cloud condensation nuclei (CCN). However, the precursor vapours that drive the process are not well understood. [...]
2022 - 7 p. - Published in : Nature 605 (2022) 483-489 Fulltext: PDF;
4.
Production of pions, kaons, and protons as a function of the relative transverse activity classifier in pp collisions at $ \sqrt{s} $ = 13 TeV / ALICE Collaboration
The production of $\pi^\pm$, K$^\pm$, and ($\overline{\mathrm{p}}$)p is measured in pp collisions at $\sqrt{s}$ = 13 TeV in different topological regions of the events. Particle transverse momentum ($p_{\rm T}$) spectra are measured in the ``toward'', ``transverse'', and ``away'' angular regions defined with respect to the direction of the leading particle in the event. [...]
arXiv:2301.10120; CERN-EP-2022-286.- Geneva : CERN, 2023-06-06 - 32 p. - Published in : JHEP 2306 (2023) 027 Draft (restricted): PDF; Fulltext: 2301.10120 - PDF; document - PDF;
5.
Measurement of inclusive and leading subjet fragmentation in pp and Pb–Pb collisions at $ \sqrt{s_{\textrm{NN}}} $ = 5.02 TeV / ALICE Collaboration
This article presents new measurements of the fragmentation properties of jets in both proton--proton (pp) and heavy-ion collisions with the ALICE experiment at the Large Hadron Collider (LHC). We report distributions of the fraction $z_r$ of transverse momentum carried by subjets of radius $r$ within jets of radius $R$. [...]
arXiv:2204.10270; CERN-EP-2022-060.- 2023-05-31 - 27 p. - Published in : JHEP 2305 (2023) 245 Draft (restricted): PDF; Fulltext: document - PDF; 2204.10270 - PDF;
6.
The ALICE experiment: a journey through QCD / ALICE Collaboration
The ALICE experiment was proposed in 1993, to study strongly interacting matter at extreme energy densities via a comprehensive investigation of nuclear collisions at the LHC. Its physics programme initially focused on the determination of the properties of the Quark-Gluon Plasma (QGP), a deconfined state of quarks and gluons and was extended along the years, covering a diverse ensemble of observables related to Quantum Chromodynamics (QCD), the theory of strong interactions. [...]
arXiv:2211.04384; CERN-EP-2022-227.- Geneva : CERN, 2024-08-14 - 221 p. - Published in : Eur. Phys. J. C 84 (2024) 813 Draft (restricted): PDF; Fulltext: document - PDF; 2211.04384 - PDF;
7.
Symmetry plane correlations in Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 2.76$TeV / ALICE Collaboration
A newly developed observable for correlations between symmetry planes, which characterize the direction of the anisotropic emission of produced particles, is measured in Pb--Pb collisions at $\sqrt{s_\text{NN}}$~=~2.76~TeV with ALICE. This so-called Gaussian Estimator allows for the first time the study of these quantities without the influence of correlations between different flow amplitudes. [...]
arXiv:2302.01234; CERN-EP-2023-012.- Geneva : CERN, 2023-07-07 - 28 p. - Published in : Eur. Phys. J. C 83 (2023) 576 Draft (restricted): PDF; Fulltext: 2302.01234 - PDF; document - PDF;
8.
Inclusive photon production at forward rapidities in pp and p-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV / ALICE Collaboration
A study of multiplicity and pseudorapidity distributions of inclusive photons measured in pp and p-Pb collisions at a center-of-mass energy per nucleon-nucleon collision of $\sqrt{s_{\rm NN}}$ = 5.02 TeV using the ALICE detector in the forward pseudorapidity region $2.3 < \eta_{\rm lab} < 3.9$ is presented. Measurements in p-Pb collisions are reported for two beam configurations in which the directions of the proton and lead ion beam were reversed. [...]
arXiv:2303.00590; CERN-EP-2023-026.- Geneva : CERN, 2023-07-25 - 35 p. - Published in : Eur. Phys. J. C 83 (2023) 661 Draft (restricted): PDF; Fulltext: document - PDF; 2303.00590 - PDF;
9.
Azimuthal correlations of heavy-flavor hadron decay electrons with charged particles in pp and p–Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV / ALICE Collaboration
The azimuthal ($\Delta\varphi$) correlation distributions between heavy-flavor decay electrons and associated charged particles are measured in pp and p–Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV. Results are reported for electrons with transverse momentum $4<p_{\rm T}<16$ GeV/$c$ and pseudorapidity $|\eta|<0.6$. [...]
arXiv:2303.00591; CERN-EP-2023-024.- Geneva : CERN, 2023-08-22 - 38 p. - Published in : Eur. Phys. J. C 83 (2023) 741 Draft (restricted): PDF; Fulltext: document - PDF; 2303.00591 - PDF;
10.
Jet-like correlations with respect to K$^{0}_{\rm S}$ and $\Lambda$ ($\bar{\Lambda}$) in pp and Pb-Pb collisions at $\mathbf{\it\sqrt{s_\mathrm{NN}}}$ = 5.02 TeV / ALICE Collaboration
Two-particle correlations with ${\rm K}^{0}_{\rm{S}}$, $\Lambda$/$\overline{\Lambda}$, and charged hadrons as trigger particles in the transverse momentum range $8 < p_\mathrm{T,trig}<16$ GeV/$c$, and associated charged particles within $1 < p_\mathrm{T,assoc}<8$ GeV/$c$, are studied at mid-rapidity in pp and central Pb-Pb collisions at a centre-of-mass energy per nucleon-nucleon collision $\sqrt{s_{\mathrm{NN}}} = 5.02$ TeV with the ALICE detector at the LHC. After subtracting the contributions of the flow background, the per-trigger yields are extracted on both the near and away sides, and the ratio in Pb-Pb collisions with respect to pp collisions ($I_{\mathrm {AA}}$) is computed. [...]
arXiv:2211.01197; CERN-EP-2022-225.- Geneva : CERN, 2023-06-12 - 27 p. - Published in : Eur. Phys. J. C 83 (2023) 497 Draft (restricted): PDF; Fulltext: document - PDF; 2211.01197 - PDF;

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