CERN Accelerating science

CERN Document Server 19 εγγραφές βρέθηκαν  1 - 10επόμενο  μετάβαση στην εγγραφή: Η έρευνα πήρε 0.69 δευτερόλεπτα. 
1.
Search for weakly decaying $\overline{\Lambda\mathrm{n}}$ and $\Lambda\Lambda $ exotic bound states in central Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV / ALICE Collaboration
We present results of a search for two hypothetical strange dibaryon states, i.e. the H-dibaryon and the possible $\overline{\Lambda\mathrm{n}}$ bound state. [...]
arXiv:1506.07499; CERN-PH-EP-2015-069; CERN-PH-EP-2015-069.- Geneva : CERN, 2016-01-10 - 11 p. - Published in : Phys. Lett. B 752 (2016) 267-277 Article from SCOAP3: PDF; Elsevier Open Access article: PDF; Fulltext: PDF; External link: Preprint
2.
Production of light nuclei and anti-nuclei in $pp$ and Pb-Pb collisions at energies available at the CERN Large Hadron Collider / ALICE Collaboration
The production of (anti-)deuteron and (anti-)$^{3}$He nuclei in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV has been studied using the ALICE detector at the LHC. The spectra exhibit a significant hardening with increasing centrality. [...]
arXiv:1506.08951; CERN-PH-EP-2015-025; CERN-PH-EP-2015-025.- Geneva : CERN, 2016-02-29 - 20 p. - Published in : Phys. Rev. C 93 (2016) 024917 APS Open Access article: PDF; Fulltext: PDF; External link: Preprint
3.
$^{3}_{\Lambda}\mathrm H$ and $^{3}_{\bar{\Lambda}} \overline{\mathrm H}$ production in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV / ALICE Collaboration
The production of the hypertriton nuclei $^{3}_{\Lambda}\mathrm H$ and $^{3}_{\bar{\Lambda}} \overline{\mathrm H}$ has been measured for the first time in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV with the ALICE experiment at LHC energies. The total yield, d$N$/d$y$ $\times \mathrm{B.R.}_{\left( ^{3}_{\Lambda}\mathrm H \rightarrow ^{3}\mathrm{He},\pi^{-} \right)} = \left( 3.86 \pm 0.77 (\mathrm{stat.}) \pm 0.68 (\mathrm{syst.})\right) \times 10^{-5}$ in the 0-10% most central collisions, is consistent with the predictions from a statistical thermal model using the same temperature as for the light hadrons. [...]
arXiv:1506.08453; CERN-PH-EP-2015-105; CERN-PH-EP-2015-105.- Geneva : CERN, 2016-03-10 - 13 p. - Published in : Phys. Lett. B 754 (2016) 360-372 Article from SCOAP3: PDF; Elsevier Open Access article: PDF; Fulltext: PDF; External link: Preprint
4.
One-dimensional pion, kaon, and proton femtoscopy in Pb-Pb collisions at $\sqrt{s_{\rm {NN}}}$ =2.76 TeV / ALICE Collaboration
The size of the particle emission region in high-energy collisions can be deduced using the femtoscopic correlations of particle pairs at low relative momentum. Such correlations arise due to quantum statistics and Coulomb and strong final state interactions. [...]
arXiv:1506.07884; CERN-PH-EP-2015-106; CERN-PH-EP-2015-106.- 2015-11-19 - 15 p. - Published in : Phys. Rev. C 92 (2015) 054908 APS Open Access article: PDF; Fulltext: PDF; External link: Preprint
5.
Coherent $\psi(2S)$ photo-production in ultra-peripheral Pb-Pb collisions at $\sqrt{s_{\rm NN}}$= 2.76 TeV / ALICE Collaboration
The ALICE Collaboration has performed the first measurement of the coherent $\psi(2S)$ photo-production cross section in ultra-peripheral Pb-Pb collisions at the LHC. This charmonium excited state is reconstructed via the $\psi(2S)\rightarrow l^+l^-$ and $\psi(2S)\rightarrow{\rm J}/\psi \pi^+\pi^-$ decays, where the J/$\psi$ decays into two leptons. [...]
arXiv:1508.05076; CERN-PH-EP-2015-156; CERN-PH-EP-2015-156.- Geneva : CERN, 2015-12-17 - 13 p. - Published in : Phys. Lett. B 751 (2015) 358-370 Article from SCOAP3: PDF; Draft (restricted): PDF; Elsevier Open Access article: PDF; Fulltext: PDF; External link: Preprint
6.
Centrality dependence of high-$p_{\rm T}$ D meson suppression in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV / ALICE Collaboration
The nuclear modification factor, $R_{\rm AA}$, of the prompt charmed mesons ${\rm D^0}$, ${\rm D^+}$ and ${\rm D^{*+}}$, and their antiparticles, was measured with the ALICE detector in Pb-Pb collisions at a centre-of-mass energy $\sqrt{s_{\rm NN}} = 2.76$ TeV in two transverse momentum intervals, $5<p_{\rm T}<8$ GeV/$c$ and $8<p_{\rm T}<16$ GeV/$c$, and in six collision centrality classes. The $R_{\rm AA}$ shows a maximum suppression of a factor of 5-6 in the 10% most central collisions. [...]
arXiv:1506.06604; CERN-PH-EP-2015-151; ALICE-PUBLIC-2017-004; CERN-PH-EP-2015-151.- Geneva : CERN, 2015-11-30 - 4 p.
Article from SCOAP3: PDF; Draft (restricted): PDF; Fulltext: arXiv:1506.06604 - PDF; ALICE-PUBLIC-2017-004 Addendum - PDF; Publication - PDF;
7.
Measurement of jet quenching with semi-inclusive hadron-jet distributions in central Pb-Pb collisions at ${\sqrt{\bf{s}_{\mathrm {\bf{NN}}}}}$ = 2.76 TeV / ALICE Collaboration
We report the measurement of a new observable of jet quenching in central Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 2.76$ TeV, based on the semi-inclusive rate of charged jets recoiling from a high transverse momentum (high-$p_{\rm T}$) charged hadron trigger. Jets are measured using collinear-safe jet reconstruction with infrared cutoff for jet constituents of 0.15 GeV/$c$, for jet resolution parameters $R = 0.2$, 0.4 and 0.5. [...]
arXiv:1506.03984; CERN-PH-EP-2015-136; CERN-PH-EP-2015-136.- Geneva : CERN, 2015-09-24 - 37 p. - Published in : JHEP 09 (2015) 170 Article from SCOAP3: PDF; Fulltext: PDF; Springer Open Access article: PDF;
8.
Inclusive, prompt and non-prompt J/$\psi$ production at mid-rapidity in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV / ALICE Collaboration
The transverse momentum ($p_{\rm T}$) dependence of the nuclear modification factor $R_{\rm AA}$ and the centrality dependence of the average transverse momentum $\langle p_{\rm T}\rangle$ for inclusive J/$\psi$ have been measured with ALICE for Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV in the e$^+$e$^-$ decay channel at mid-rapidity ($|y|<0.8$). The $\langle p_{\rm T}\rangle$ is significantly smaller than the one observed for pp collisions at the same centre-of-mass energy. [...]
arXiv:1504.07151; CERN-PH-EP-2015-092; CERN-PH-EP-2015-092.- Geneva : CERN, 2015-07-10 - 28 p. - Published in : JHEP 07 (2015) 051 Article from SCOAP3: PDF; Fulltext: PDF; Springer Open Access article: PDF;
9.
Coherent $\rho^0$ photoproduction in ultra-peripheral Pb-Pb collisions at $\mathbf{\sqrt{\textit{s}_{\rm NN}}} = 2.76$ TeV / ALICE Collaboration
We report the first measurement at the LHC of coherent photoproduction of $\rho^0$ mesons in ultra-peripheral Pb-Pb collisions. The invariant mass and transverse momentum distributions for $\rho^0$ production are studied in the $\pi^+ \pi^-$ decay channel at mid-rapidity. [...]
arXiv:1503.09177; CERN-PH-EP-2015-082; CERN-PH-EP-2015-082.- Geneva : CERN, 2015-09-15 - 23 p. - Published in : JHEP 09 (2015) 095 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF; Springer Open Access article: PDF;
10.
Measurement of charm and beauty production at central rapidity versus charged-particle multiplicity in proton-proton collisions at $\sqrt{s}$ = 7 TeV / ALICE Collaboration
Prompt D meson and non-prompt J/$\psi$ yields are studied as a function of the multiplicity of charged particles produced in inelastic proton-proton collisions at a centre-of-mass energy of $\sqrt{s}=7$ TeV. The results are reported as a ratio between yields in a given multiplicity interval normalised to the multiplicity-integrated ones (relative yields). [...]
arXiv:1505.00664; CERN-PH-EP-2015-091; CERN-PH-EP-2015-091.- Geneva : CERN, 2015-09-22 - 39 p. - Published in : JHEP 09 (2015) 148 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Draft (restricted): PDF; Fulltext: PDF; Springer Open Access article: PDF;

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