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CERN Document Server 2,051 εγγραφές βρέθηκαν  1 - 10επόμενοτέλος  μετάβαση στην εγγραφή: Η έρευνα πήρε 0.82 δευτερόλεπτα. 
1.
Performance of the Electromagnetic Pixel Calorimeter Prototype EPICAL-2 / Alme, J. (Bergen U.) ; Barthel, R. (Nikhef, Amsterdam) ; van Bochove, A. (Nikhef, Amsterdam) ; Borshchov, V. (Unlisted, RU ; BITP, Kiev) ; Bosley, R. (Birmingham U.) ; Brink, A. van den (Nikhef, Amsterdam) ; Broeils, E. (Nikhef, Amsterdam) ; Büsching, H. (Frankfurt U., Inst. Kernphys.) ; Eikeland, V.N. (Bergen U.) ; Groettvik, O.S. (Bergen U.) et al.
The first evaluation of an ultra-high granularity digital electromagnetic calorimeter prototype using 1.0-5.8 GeV/c electrons is presented. The $25\times10^6$ pixel detector consists of 24 layers of ALPIDE CMOS MAPS sensors, with a pitch of around 30~$\mu$m, and has a depth of almost 20 radiation lengths of tungsten absorber. [...]
arXiv:2209.02511.- 2023-01-31 - 30 p. - Published in : JINST 18 (2023) P01038 Fulltext: document - PDF; 2209.02511 - PDF;
2.
Results from the EPICAL-2 ultra-high granularity electromagnetic calorimeter prototype / Peitzmann, T. (Utrecht U. ; Nikhef, Amsterdam) ; Alme, J. (Bergen U.) ; Barthel, R. (Utrecht U. ; Nikhef, Amsterdam) ; van Bochove, A. (Utrecht U. ; Nikhef, Amsterdam) ; Borshchov, V. (Kharkov, KIPT ; BITP, Kiev) ; Bosley, R. (Birmingham U.) ; Brink, A. van den (Utrecht U. ; Nikhef, Amsterdam) ; Broeils, E. (Utrecht U. ; Nikhef, Amsterdam) ; Büsching, H. (Frankfurt U., Inst. Kernphys.) ; Eikeland, V.N. (Bergen U.) et al.
A prototype of a new type of calorimeter has been designed and constructed, based on a silicon-tungsten sampling design using pixel sensors with digital readout. It makes use of the Alpide MAPS sensor developed for the ALICE ITS upgrade. [...]
arXiv:2207.01815.- 2023-01-01 - 4 p.
Fulltext: 2207.01815 - PDF; Publication - PDF; 1-s2.0-S0168900222008312-main - PDF;
In : 15th Pisa Meeting on Advanced Detectors, La Biodola - Isola D'elba, Italy, 22 - 28 May 2022, pp.167539
3.
Production of K$^{*}(892)^{0}$ and $\phi(1020)$ in pp and Pb$-$Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV / ALICE Collaboration
The production of K$^{*}(892)^{0}$ and $\phi(1020)$ mesons in proton-proton (pp) and lead-lead (Pb$-$Pb) collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV has been measured using the ALICE detector at the Large Hadron Collider (LHC). The transverse momentum ($p_{\mathrm{T}}$) distributions of K$^{*}(892)^{0}$ and $\phi(1020)$ mesons have been measured at mid-rapidity $(|y|<0.5)$ up to $p_{\mathrm{T}}$ $=$ 20 GeV$/c$ in inelastic pp collisions and for several Pb$-$Pb collision centralities. [...]
arXiv:2106.13113; CERN-EP-2021-101.- Geneva : CERN, 2022-09-14 - 20 p. - Published in : Phys. Rev. C 106 (2022) 034907 Draft (restricted): PDF; Fulltext: 2106.13113 - PDF; PhysRevC.106.034907 - PDF;
4.
Direct observation of the dead-cone effect in quantum chromodynamics / ALICE Collaboration
At particle collider experiments, elementary particle interactions with large momentum transfer produce quarks and gluons (known as partons) whose evolution is governed by the strong force, as described by the theory of quantum chromodynamics (QCD) [1]. The vacuum is not transparent to the partons and induces gluon radiation and quark pair production in a process that can be described as a parton shower [2]. [...]
arXiv:2106.05713; CERN-EP-2021-107.- 2022-05-18 - 20 p.
- Published in : Nature Draft (restricted): PDF; Fulltext: 2106.05713 - PDF; document - PDF; Erratum - PDF; Publication - PDF; External link: Interactions.org article
5.
$\Lambda^+_e$ production in $pp$ and in $p$-Pb collisions at $\sqrt {s_{NN}}$=5.02 TeV / ALICE Collaboration
The production cross section of prompt $\Lambda^{+}_{\rm c}$ charmed baryons was measured with the ALICE detector at the LHC at midrapidity in proton-proton (pp) and proton-lead (p-Pb) collisions at a centre-of-mass energy per nucleon pair of $\sqrt{s_{\rm NN}} = 5.02$ TeV. The $\Lambda^{+}_{\rm c}$ and $\overline{\Lambda}^{-}_{\rm c}$ baryons were reconstructed in the hadronic decay channels $\Lambda^{+}_{\rm c} \rightarrow {\rm p}{\rm K}^{-}\pi{+}$ and $\Lambda^{+}_{\rm c} \rightarrow {\rm p}{\rm K}^{0}_{\rm S}$ and respective charge conjugates. [...]
arXiv:2011.06079; CERN-EP-2020-218.- Geneva : CERN, 2021-11-09 - 26 p. - Published in : Phys. Rev. C 104 (2021) 054905 Draft (restricted): PDF; Fulltext: PhysRevC.104.054905 - PDF; 2011.06079 - PDF;
6.
Measurement of Prompt D$^{0}$, $\Lambda_{c}^{+}$, and $\Sigma_{c}^{0,++}$(2455) Production in Proton–Proton Collisions at $\sqrt s$ = 13  TeV / ALICE Collaboration
The $p_{\rm T}$-differential production cross sections of prompt D$^{0}$, $\Lambda_{\rm c}^{+}$, and $\Sigma_{\rm c}^{0,++}(2455)$ charmed hadrons are measured at midrapidity ($|y| < 0.5$) in pp collisions at $\sqrt{s} = 13$ TeV. This is the first measurement of $\Sigma_{\rm c}^{0,++}$ production in hadronic collisions. [...]
arXiv:2106.08278; CERN-EP-2021-103.- Geneva : CERN, 2022-01-05 - 13 p. - Published in : Phys. Rev. Lett. 128 (2022) 012001 Draft (restricted): PDF; Fulltext: 2106.08278 - PDF; PhysRevLett.128.012001 - PDF;
7.
Charm-quark fragmentation fractions and production cross section at midrapidity in pp collisions at the LHC / ALICE Collaboration
Recent $p_{\rm T}$-integrated cross section measurements of the ground-state charm mesons and baryons, $\mathrm{D^0}$, $\mathrm{D^+}$, $\mathrm{D_s^+}$, $\Lambda_\mathrm{c}^+$, and $\Xi_\mathrm{c}^0$, are used to evaluate the charm fragmentation fractions and production cross section per unit of rapidity at midrapidity ($|y|<0.5$), in pp collisions at $\sqrt{s} = 5.02$ TeV at the LHC. The latter is $\mathrm{d}\sigma^{\mathrm{c\overline{c}}}/\mathrm{d} y|_{|y| < 0.5}=1165\pm 44(\mathrm{stat})^{+134}_{-101}(\mathrm{syst}) \ \mu\mathrm{b}$. [...]
arXiv:2105.06335; CERN-EP-2021-088.- Geneva : CERN, 2022-01-01 - 14 p. - Published in : Phys. Rev. D 105 (2022) L011103 Draft (restricted): PDF; Fulltext: 2105.06335 - PDF; PhysRevD.105.L011103 - PDF;
8.
Measurement of prompt $\rm{D_{s}^{+}}$-meson production and azimuthal anisotropy in Pb--Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV / ALICE Collaboration
The production yield and angular anisotropy of prompt ${D_s^+}$ mesons were measured as a function of transverse momentum ($p_{ T}$) in Pb-Pb collisions at a centre-of-mass energy per nucleon pair $\sqrt{s_{ NN}} = 5.02$ TeV collected with the ALICE detector at the LHC. ${D_s^+}$ mesons and their charge conjugates were reconstructed at midrapidity ($|y|<0.5$) from their hadronic decay channel ${D_s^+ \to \phi \pi^+}$, with ${\phi \to K^-K^+}$, in the $p_{ T}$ intervals $210$ GeV/$c$, the measured ${D_s^+}$-meson nuclear modification factor $R_{ AA}$ is consistent with the one of non-strange D mesons within uncertainties, while at lower $p_{ T}$ a hint for a ${D_s^+}$-meson $R_{ AA}$ larger than that of non-strange D mesons is seen. [...]
arXiv:2110.10006; CERN-EP-2021-187.- Geneva : CERN, 2022-04-10 - 29 p. - Published in : Phys. Lett. B 827 (2022) 136986 Draft (restricted): PDF; Fulltext: PDF; Fulltext from publisher: PDF;
9.
Measurement of the Cross Sections of $\Xi^0_{c}$ and $\Xi^+_{c}$ Baryons and of the Branching-Fraction Ratio BR($\Xi^0_{c} \rightarrow \Xi^-{e}^+\nu_{ e}$)/BR($\Xi^0_{c} \rightarrow \Xi^-\pi^+$) in pp collisions at 13 TeV / ALICE Collaboration
The $p_{\rm T}$-differential cross sections of prompt charm-strange baryons $\rm \Xi_{c}^{0}$ and $\rm \Xi_{c}^{+}$ were measured at midrapidity (|y| < 0.5) in proton–proton (pp) collisions at a centre-of-mass energy $\sqrt{s}$ = 13 TeV with the ALICE detector at the LHC. The $\rm \Xi_{c}^{0}$ baryon was reconstructed via both the semileptonic decay ($\rm \Xi_{c}^{0} \rightarrow \Xi^{-}e^+ \nu$) and the hadronic decay ($\rm \Xi_{c}^{0} \rightarrow \Xi^{-} \pi^{+}$) channels. [...]
arXiv:2105.05187; CERN-EP-2021-084.- Geneva : CERN, 2021-12-28 - 17 p. - Published in : Phys. Rev. Lett. 127 (2021) 272001 Draft (restricted): PDF; Fulltext: 2105.05187 - PDF; PhysRevLett.127.272001 - PDF; Supplemental Material - PDF;
10.
Measurement of the groomed jet radius and momentum splitting fraction in pp and Pb$-$Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV / ALICE Collaboration
This article presents groomed jet substructure measurements in pp and Pb$-$Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV with the ALICE detector. The Soft Drop grooming algorithm provides access to the hard parton splittings inside a jet by removing soft wide-angle radiation. [...]
arXiv:2107.12984; CERN-EP-2021-151.- Geneva : CERN, 2022-03-07 - 18 p. - Published in : Phys. Rev. Lett. 128 (2022) 102001 Draft (restricted): PDF; Fulltext: 2107.12984 - PDF; PhysRevLett.128.102001 - PDF;

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