CERN Accelerating science

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1.
A Layer Correlation technique for pion energy calibration at the 2004 ATLAS Combined Beam Test / Abat, E. (Bogazici U.) ; Abdallah, J.M. (Barcelona, IFAE) ; Addy, T.N. (Hampton U.) ; Adragna, P. (Queen Mary, U. of London) ; Aharrouche, M. (Mainz U., Inst. Phys.) ; Ahmad, A. (Taiwan, Inst. Phys.) ; Akesson, T.P.A. (Lund U.) ; Aleksa, M. (CERN) ; Alexa, C. (Bucharest, IFIN-HH) ; Anderson, K. (Chicago U., EFI) et al.
A new method for calibrating the hadron response of a segmented calorimeter is developed and successfully applied to beam test data. It is based on a principal component analysis of the calorimeter layer energy deposits, exploiting longitudinal shower development information to improve the measured energy resolution. [...]
arXiv:1012.4305; ATL-COM-CAL-2010-006; ATL-COM-CAL-2010-006.- 2011 - 36 p. - Published in : JINST 6 (2011) P06001 Fulltext: PDF; IOP Open Access article: PDF; External link: Preprint
2.
Report from Working Group 2 : Higgs Physics at the HL-LHC and HE-LHC / Cepeda, M. (CERN ; Madrid, CIEMAT) ; Gori, S. (UC, Santa Cruz, Inst. Part. Phys.) ; Ilten, P. (Birmingham U.) ; Kado, M. (Orsay, LAL ; INFN, Rome ; Rome U.) ; Riva, F. (Geneva U., Dept. Theor. Phys.) ; Abdul Khalek, R. (Vrije U., Amsterdam ; Nikhef, Amsterdam) ; Aboubrahim, A. (Northeastern U. (main)) ; Alimena, J. (Ohio State U., Columbus (main)) ; Alioli, S. (Milan Bicocca U.) ; Alves, A. (U. Sao Paulo (main)) et al.
The discovery of the Higgs boson in 2012, by the ATLAS and CMS experiments, was a success achieved with only a percent of the entire dataset foreseen for the LHC. It opened a landscape of possibilities in the study of Higgs boson properties, Electroweak Symmetry breaking and the Standard Model in general, as well as new avenues in probing new physics beyond the Standard Model. [...]
arXiv:1902.00134; CERN-LPCC-2018-04.- Geneva : CERN, 2019-12-02 - 364 p. - Published in : CERN Yellow Rep. Monogr. 7 (2019) 221-584 Fulltext: PDF; Preprint: PDF; final document: PDF; External link: Published fulltext
In : HL/HE-LHC Workshop : Workshop on the Physics of HL-LHC, and Perspectives at HE-LHC, Geneva, Switzerland, 18 - 20 Jun 2018
Report on the Physics at the HL-LHC, and Perspectives for the HE-LHC, Geneva, Switzerland, 18 - 20 Jun 2018, pp.221-584
3.
Measurement of the CKM angle $\gamma$ in $B^\pm\to D K^\pm$ and $B^\pm \to D \pi^\pm$ decays with $D \to K_\mathrm S^0 h^+ h^-$ / LHCb Collaboration
A measurement of $CP$-violating observables is performed using the decays ${B^\pm\to D K^\pm}$ and ${B^\pm\to D \pi^\pm}$, where the $D$ meson is reconstructed in one of the self-conjugate three-body final states $K_{\mathrm S}^0\pi^+\pi^-$ and $K_{\mathrm S}^0K^+K^-$ (commonly denoted $K_{\mathrm S}^0 h^+h^-$). The decays are analysed in bins of the $D$-decay phase space, leading to a measurement that is independent of the modelling of the $D$-decay amplitude. [...]
arXiv:2010.08483; LHCb-PAPER-2020-019; CERN-EP-2020-175; LHCB-PAPER-2020-019.- Geneva : CERN, 2021-02-19 - 36 p. - Published in : JHEP 2102 (2021) 169 Article from SCOAP3: PDF; Fulltext: 2010.08483 - PDF; LHCb-PAPER-2020-019_arxiv_submission - PDF; Related data files: ZIP; Supplementary information: ZIP;
4.
Search for long-lived particles decaying to $e^{\pm} \mu^{\mp} \nu$ / LHCb Collaboration
Long-lived particles decaying to $e^\pm \mu^\mp \nu$, with masses between 7 and 50 GeV/c$^2$ and lifetimes between 2 and 50 ps, are searched for by looking at displaced vertices containing electrons and muons of opposite charges. The search is performed using 5.4 fb$^{-1}$ of $pp$ collisions collected with the LHCb detector at a centre-of-mass energy of $\sqrt{s} = 13$ TeV. [...]
arXiv:2012.02696; LHCb-PAPER-2020-027; CERN-EP-2020-212.- Geneva : CERN, 2021-03-26 - 16 p. - Published in : Eur. Phys. J. C 81 (2021) 261 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; Supplementary information: ZIP;
5.
First observation of the decay $B_s^0 \to K^-\mu^+\nu_\mu$ and measurement of $|V_{ub}|/|V_{cb}|$ / LHCb Collaboration
The first observation of the suppressed semileptonic $B_s^0 \to K^-\mu^+\nu_\mu$ decay is reported. Using a data sample recorded in $pp$ collisions in 2012 with the LHCb detector, corresponding to an integrated luminosity of 2 $\mathrm{fb}^{-1}$, the branching fraction $\mathcal{B}(B_s^0 \to K^-\mu^+\nu_\mu)$} is measured to be $(1.06\pm0.05~(\mathrm{stat})\pm0.08~(\mathrm{syst}))\times 10^{-4}$, where the first uncertainty is statistical and the second one represents the combined systematic uncertainties. [...]
arXiv:2012.05143; LHCb-PAPER-2020-038; CERN-EP-2020-224; CERN-EP-2020-224; LHCB-PAPER-2020-038.- Geneva : CERN, 2021-02-25 - 11 p. - Published in : Phys. Rev. Lett. 126 (2021) 081804 Article from SCOAP3: PDF; Fulltext: LHCb-PAPER-2020-038 - PDF; 2012.05143 - PDF; Related data file(s): ZIP; Supplementary information: ZIP;
6.
Measurement of the branching fraction of the $B^{0}\rightarrow D_{s}^{+}\pi^{-}$ decay / LHCb Collaboration
A branching fraction measurement of the $B^{0}\rightarrow D_{s}^{+}\pi^{-}$ decay is presented using proton-proton collision data collected with the LHCb experiment, corresponding to an integrated luminosity of $5.0\,$fb$^{-1}$. The branching fraction is found to be ${\mathcal{B}(B^{0}\rightarrow D_{s}^{+}\pi^{-}) = (19.4 \pm 1.8\pm 1.3 \pm 1.2)\times 10^{-6}}$, where the first uncertainty is statistical, the second systematic and the third is due to the uncertainty on the $B^0 \to D^{-}\pi^{+}$, $D_{s}^{+}\rightarrow K^{+}K^{-}\pi^{+}$ and $D^{-}\rightarrow K^{+}\pi^{-}\pi^{-}$ branching fractions. [...]
arXiv:2010.11986; LHCb-PAPER-2020-021; CERN-EP-2020-183; LHCB-PAPER-2020-021.- Geneva : CERN, 2021-04-12 - 15 p. - Published in : Eur. Phys. J. C 81 (2021) 314 Article from SCOAP3: PDF; Fulltext: 2010.11986 - PDF; Bd2DsPi_Paper_v4.0 - PDF; Related data file(s): ZIP; Supplementary information: ZIP;
7.
Measurement of prompt-production cross-section ratio $\sigma(\chi_{c2})/\sigma(\chi_{c1})$ in $p$Pb collisions at $\sqrt{s_{NN}}$ = 8.16 TeV / LHCb Collaboration
This Letter reports the first measurement of prompt $\chi_{c1}$ and $\chi_{c2}$ charmonium production in nuclear collisions at LHC energies. The cross-section ratio $\sigma(\chi_{c2}) / \sigma(\chi_{c1})$ is measured in $p$Pb collisions at $\sqrt{s_{NN}}$~=~8.16~TeV, collected with the LHCb experiment. [...]
arXiv:2103.07349; LHCb-PAPER-2020-048; CERN-EP-2021-024F; CERN-EP-2021-024; LHCB-PAPER-2020-048.- 2021-06-09 - 18 p. - Published in : Phys. Rev. C 103 (2021) 064905 Article from SCOAP3: PDF; Fulltext: 2103.07349 - PDF; LHCb-PAPER-2020-048 - PDF; Related data file(s): ZIP;
8.
Search for Quark Contact Interactions in Dijet Angular Distributions in $pp$ Collisions at $\sqrt{s}$ = 7 TeV Measured with the ATLAS Detector / ATLAS Collaboration
Dijet angular distributions from the first LHC pp collisions at center-of-mass energy sqrt(s) = 7 TeV have been measured with the ATLAS detector. The dataset used for this analysis represents an integrated luminosity of 3.1 pb-1. [...]
arXiv:1009.5069; CERN-PH-EP-2010-033; CERN-PH-EP-2010-033.- Geneva : CERN, 2013-07-16 - 19 p. - Published in : Phys. Lett. B 694 (2011) 327-345 Elsevier Open Access article: PDF; Fulltext: PDF; External link: all figures including auxiliary figures
9.
Measurement of the $W\to l\nu$ and $Z/\gamma* \to ll$ production cross sections in proton-proton collisions at $\sqrt{s}$ = 7 TeV with the ATLAS detector / ATLAS Collaboration
First measurements of the W -> lnu and Z/gamma* -> ll (l = e, mu) production cross sections in proton-proton collisions at sqrt(s) = 7 TeV are presented using data recorded by the ATLAS experiment at the LHC. The results are based on 2250 W -> lnu and 179 Z/gamma* -> ll candidate events selected from a data set corresponding to an integrated luminosity of approximately 320 nb-1. [...]
arXiv:1010.2130; CERN-PH-EP-2010-037; CERN-PH-EP-2010-037.- Geneva : CERN, 2010 - 55 p. - Published in : JHEP 12 (2010) 060 Fulltext: PDF; Springer Open Access article: PDF; External link: all figures including auxiliary figures
10.
Measurement of inclusive jet and dijet cross sections in proton-proton collisions at 7 TeV centre-of-mass energy with the ATLAS detector / ATLAS Collaboration
Jet cross sections have been measured for the first time in proton-proton collisions at a centre-of-mass energy of 7 TeV using the ATLAS detector. The measurement uses an integrated luminosity of 17 nb-1 recorded at the Large Hadron Collider. [...]
arXiv:1009.5908; CERN-PH-EP-2010-034; CERN-PH-EP-2010-034.- Geneva : CERN, 2011 - 67 p. - Published in : Eur. Phys. J. C 71 (2011) 1512 Fulltext: PDF; Springer Open Access article: PDF; External links: all figures including auxiliary figures; Rivet analyses reference

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