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2018-07-23
11:17
Elliptic and higher-order azimuthal anisotropies via multiparticle correlations in pPb and PbPb collisions with the CMS experiment / Wang, Quan (Kansas U.) /CMS Collaboration
The elliptic and higher-order azimuthal anisotropy Fourier harmonics ($v_n$) are obtained for pPb collisions at $\sqrt{s_{NN}} = 8.16$ TeV over a wide range of event multiplicities based on multiparticle correlations. The data were collected by the CMS experiment during the 2016 LHC run. [...]
CMS-CR-2018-127.- Geneva : CERN, 2018 - 5 p. Fulltext: PDF;
In : The 27th International Conference on Ultrarelativistic Nucleus-Nucleus Collisions, Venice, Italy, 13 - 19 May 2018

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2018-07-23
11:16
(YSF) Search for SUSY with a Highly Compressed Mass Spectrum in the Soft Single Lepton Channel with the CMS Experiment / Zarucki, Mateusz (Vienna, OAW) /CMS Collaboration
SUSY models with compressed mass spectra are highly motivated by theoretical considerations, such as dark matter constraints and naturalness. The search targets simplified models in which the signal consists of top squark (stop) pair-production, followed by 4-body decays or decays via an intermediate chargino. [...]
CMS-CR-2018-128.- Geneva : CERN, 2018 - 8 p. Fulltext: PDF;
In : an Alpine LHC Physics Summit, Obergurgl, Austria, 15 - 20 Apr 2018

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2018-07-23
11:16
(YSF) Search for top squarks and dark matter particles in opposite-charge dilepton final states at CMS / Spitzbart, Daniel (Vienna, OAW) /CMS Collaboration
A search for new physics is presented in final states with two oppositely charged leptons, jets identified as originating from b quarks, and missing transverse momentum using 35.9/fb of CMS data recorded in 2016. Hypothetical signal events are efficiently separated from the dominant top quark pair background with requirements on missing transverse momentum and transverse mass variables, the latter reducing the background by four orders of magnitude. [...]
CMS-CR-2018-134.- Geneva : CERN, 2018 - 8 p. Fulltext: PDF;
In : an Alpine LHC Physics Summit, Obergurgl, Austria, 15 - 20 Apr 2018

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2018-07-23
11:15
The economic impact of technological procurement for large-scale research infrastructures: Evidence from the Large Hadron Collider at CERN / Florio, Massimo (Università degli Studi e INFN Milano (IT)) ; Castelnovo, Paolo (Università degli Studi e INFN Milano (IT)) ; Forte, Stefano (Università degli Studi e INFN Milano (IT)) ; Rossi, Lucio (CERN) ; Sirtori, Emanuela (CSIL Centre for Industrial Studies)
The Large Hadron Collider at CERN, the European Organisation for Nuclear Research, is the world’s highest-energy particle accelerator. [...]
CERN-ACC-2018-0022.
- 2018. - 42 p.
Full text

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2018-07-23
00:49
Searches for pair production of charginos and top squarks in final states with two oppositely charged leptons in proton-proton collisions at $\sqrt{s} = $ 13 TeV
A search for pair production of supersymmetric particles in events with two oppositely charged leptons (electrons or muons) and missing transverse momentum is reported. [...]
CERN-EP-2018-186 ; CMS-SUS-17-010-003.
- 2018.
Additional information for the analysis - CMS AuthorList - Fulltext

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2018-07-21
11:09
Multiplicity dependence of strangeness and hadronic resonance production in pp and p-Pb collisions with ALICE at the LHC / Dash, Ajay Kumar
One of the key results of the LHC Run 1 was the observation of an enhanced production of strange particles in high multiplicity pp and p--Pb collisions at $\sqrt{s_\mathrm{NN}}$ = 7 and 5.02 TeV, respectively. [...]
arXiv:1807.07469.
- 5 p.
Full text - Fulltext

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2018-07-21
11:09
Non-strange and strange D-meson and charm-baryon production in heavy-ion collisions measured with ALICE at the LHC / Peng, Xinye
We present recent result on strange and non-strange D-meson production measured with ALICE in Pb--Pb collisions at the LHC. [...]
arXiv:1807.07286.
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00009 The $\Lambda_{{\rm c}}^+/{\rm D^0}$ ratio in Pb--Pb collisions at $\sqrt{s_{\scriptscriptstyle \rm NN}}$ = 5.02 TeV, compared with that in pp and p--Pb collisions (left), and $\Lambda_{{\rm c}}^+$-baryon $R_{\rm AA}$ in 0-80\% Pb--Pb collisions at 5.02 TeV compared to average non-strange D-meson, ${\rm D}_{\rm s}^+$-meson, $\pi ^\pm$ and charged particle $R_{\rm AA}$ in 0-10\% centrality class - 00007 The $\Lambda_{{\rm c}}/{\rm D^0}$ raito in pp collisions at $\sqrt{s}$ = 7 TeV and in p--Pb collisions at $\sqrt{s_{\scriptscriptstyle \rm NN}}$ = 5.02 TeV, compared with model predictions (left) and $\Lambda/{\rm K}^0_{\rm s}$, ${\rm p}/{\pi}$ ratios in pp (middle) and p--Pb (right) collisions. - 00006 Non-strange D-meson $R_{\rm AA}$ in the 0-10\% centrality class (left) and elliptic flow $v_{2}$ in the 30-50\% centrality class~\cite{v2} (right), compared with models predictions~\cite{LBT,MCsHQ,PHSD,POWLANG,Uphoff:2014hza,He:2014cla}. - 00011 Non-strange D-meson $R_{\rm AA}$ in the 0-10\% centrality class (left) and elliptic flow $v_{2}$ in the 30-50\% centrality class~\cite{v2} (right), compared with models predictions~\cite{LBT,MCsHQ,PHSD,POWLANG,Uphoff:2014hza,He:2014cla}. - 00008 The $\Lambda_{{\rm c}}^+/{\rm D^0}$ ratio in Pb--Pb collisions at $\sqrt{s_{\scriptscriptstyle \rm NN}}$ = 5.02 TeV, compared with that in pp and p--Pb collisions (left), and $\Lambda_{{\rm c}}^+$-baryon $R_{\rm AA}$ in 0-80\% Pb--Pb collisions at 5.02 TeV compared to average non-strange D-meson, ${\rm D}_{\rm s}^+$-meson, $\pi ^\pm$ and charged particle $R_{\rm AA}$ in 0-10\% centrality class - Fulltext - 00010 The $\Lambda_{{\rm c}}/{\rm D^0}$ raito in pp collisions at $\sqrt{s}$ = 7 TeV and in p--Pb collisions at $\sqrt{s_{\scriptscriptstyle \rm NN}}$ = 5.02 TeV, compared with model predictions (left) and $\Lambda/{\rm K}^0_{\rm s}$, ${\rm p}/{\pi}$ ratios in pp (middle) and p--Pb (right) collisions. - Fulltext

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2018-07-21
11:09
A uniqueness theorem for warped $N>16$ Minkowski backgrounds with fluxes / Lautz, Sebastian (King's Coll. London, Dept. Math) ; Papadopoulos, George (King's Coll. London, Dept. Math ; CERN)
We demonstrate that warped Minkowski space backgrounds, $\mathbb{R}^{n-1,1}\times_w M^{d-n}$, $n\geq3$, that preserve strictly more than 16 supersymmetries in $d=11$ and type II $d=10$ supergravities and with fields which may not be smooth everywhere are locally isometric to the $\mathbb{R}^{d-1,1}$ Minkowski vacuum. [...]
arXiv:1807.01783.
- 7 p.
Preprint

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2018-07-20
18:21
Search for charged Higgs bosons decaying via $H^{\pm} \to \tau^{\pm}\nu_{\tau}$ in the $\tau$+jets and $\tau$+lepton final states with 36 fb$^{-1}$ of $pp$ collision data recorded at $\sqrt{s} = 13$ TeV with the ATLAS experiment
Charged Higgs bosons produced either in top-quark decays or in association with a top-quark, subsequently decaying via $H^{\pm} \to \tau^{\pm}\nu_{\tau}$, are searched for in 36.1 fb$^{-1}$ of proton-proton collision data at $\sqrt{s}=13$ TeV recorded with the ATLAS detector. [...]
CERN-EP-2018-148.
- 2018.
Fulltext - Previous draft version

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2018-07-20
04:10
Higher moment fluctuations of identified particle distributions from ALICE / Behera, Nirbhay Kumar
Cumulants of conserved charges fluctuations are regarded as a potential tool to study the criticality in the QCD phase diagram and to determine the freeze-out parameters in a model-independent way. [...]
arXiv:1807.06780.
- 4 p.
Full text - 00011 Energy dependence of $\mathrm{C}_{3}/\mathrm{C}_{2}$ and $\mathrm{C}_{4}/\mathrm {C}_{2}$ of net-proton distributions for the most central collisions. - 00007 Energy dependence of $\mathrm{C}_{3}/\mathrm{C}_{2}$ and $\mathrm{C}_{4}/\mathrm {C}_{2}$ of net-proton distributions for the most central collisions. - 00013 (From left to right) Centrality dependence of $\mathrm{C}_{2}$, $\mathrm{C}_{3}$ and $\mathrm{C}_{4}$ of net-proton distributions in Pb--Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 and 5.02 TeV. The the vertical lines and boxes represents the statistical and systematic uncertainties, respectively. - 00009 (From left to right) Centrality dependence of $\mathrm{C}_{2}$, $\mathrm{C}_{3}$ and $\mathrm{C}_{4}$ of net-proton distributions in Pb--Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 and 5.02 TeV. The the vertical lines and boxes represents the statistical and systematic uncertainties, respectively. - 00008 (From left to right) Centrality dependence of $\mathrm{C}_{2}$, $\mathrm{C}_{3}$ and $\mathrm{C}_{4}$ of net-proton distributions in Pb--Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 and 5.02 TeV. The the vertical lines and boxes represents the statistical and systematic uncertainties, respectively. - 00010 Centrality dependence of $\mathrm{C}_{3}/\mathrm{C}_{2}$ and $\mathrm{C}_{4}/\mathrm {C}_{2}$ of net-proton distributions in Pb--Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 and 5.02 TeV. The the vertical lines and boxes represents the statistical and systematic uncertainties, respectively. - 00012 Centrality dependence of $\mathrm{C}_{3}/\mathrm{C}_{2}$ and $\mathrm{C}_{4}/\mathrm {C}_{2}$ of net-proton distributions in Pb--Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 and 5.02 TeV. The the vertical lines and boxes represents the statistical and systematic uncertainties, respectively. - Fulltext

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