# PH-EP Articles

Ostatnio dodane:
2016-11-10
07:44
 Measurement of the CKM angle $\gamma$ from a combination of LHCb results / LHCb collaboration A combination of measurements sensitive to the CKM angle $\gamma$ from LHCb is performed. The inputs are from analyses of time-integrated $B^{+}\rightarrow DK^+$, $B_{d}^{0} \rightarrow D K^{*0}$, $B_{d} \rightarrow D K^+ \pi^-$ and $B^{+} \rightarrow D K^+\pi^+\pi^-$ tree-level decays. [...] arXiv:1611.03076; LHCB-PAPER-2016-032; CERN-EP-2016-270.- Geneva : CERN, 2016 - 58 p. - Published in : J. High Energy Phys. 12 (2016) 087 Fulltext: PDF; Related data file(s): ZIP;

2016-10-18
08:01
 Observation of the decay $B^0_s \to \phi\pi^+\pi^-$ and evidence for $B^0 \to \phi\pi^+\pi^-$ / LHCb collaboration The first observation of the rare decay Bs0→ϕπ+π- and evidence for B0→ϕπ+π- are reported, using pp collision data recorded by the LHCb detector at center-of-mass energies s=7 and 8 TeV, corresponding to an integrated luminosity of 3  fb-1. The branching fractions in the π+π- invariant mass range 400

2016-10-13
08:14
 Search for the $C\!P$-violating strong decays $\eta \to \pi^+\pi^-$ and $\eta^\prime(958) \to \pi^+\pi^-$ / LHCb collaboration A search for the $C\!P$-violating strong decays $\eta \to \pi^+\pi^-$ and $\eta^\prime(958) \to \pi^+\pi^-$ has been performed using approximately $2.5 \times 10^{7}$ events of each of the decays $D^+ \to \pi^+\pi^+\pi^-$ and $D_s^+ \to \pi^+\pi^+\pi^-$, recorded by the LHCb experiment. The data set corresponds to an integrated luminosity of 3.0 fb$^{-1}$ of $pp$ collision data recorded during LHC Run 1 and 0.3 fb$^{-1}$ recorded in Run 2. [...] arXiv:1610.03666; LHCB-PAPER-2016-046; CERN-EP-2016-257.- Geneva : CERN, 2017 - 17 p. - Published in : Phys. Lett. B 764 (2017) 233-240 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP; External link: Preprint

2016-09-27
23:05
 Search for long-lived charged particles in proton-proton collisions at $\sqrt{s}=$ 13 TeV / CMS Collaboration Results are presented of a search for heavy stable charged particles produced in proton-proton collisions at $\sqrt{s} =$ 13 TeV using a data sample corresponding to an integrated luminosity of 2.5 fb$^{-1}$ collected in 2015 with the CMS detector at the CERN LHC. The search is conducted using signatures of anomalously high energy deposits in the silicon tracker and long time-of-flight measurements by the muon system. [...] arXiv:1609.08382; CMS-EXO-15-010; CERN-EP-2016-204.- Geneva : CERN, 2016 - 38 p. - Published in : Phys. Rev. D 94 (2016) 112004 APS Open Access article: PDF; Fulltext: 10.1103_PhysRevD.94.112004 - PDF; arXiv:1609.08382 - PDF; External link: Preprint

2016-09-24
21:37
 Inclusive search for supersymmetry using razor variables in pp collisions at $\sqrt{s} =$ 13 TeV / CMS Collaboration An inclusive search for supersymmetry using razor variables is performed in events with four or more jets and no more than one lepton. The results are based on a sample of proton-proton collisions corresponding to an integrated luminosity of 2.3 fb$^{-1}$ collected with the CMS experiment at a center-of-mass energy of $\sqrt{s} =$ 13 TeV. [...] CERN-EP-2016-214; CMS-SUS-15-004-003; arXiv:1609.07658.- Geneva : CERN, 2017 - 56. - Published in : Phys. Rev. D 95 (2017) 012003 Fulltext: 10.1103_PhysRevD.95.012003 - PDF; arXiv:1609.07658 - PDF; External link: Fulltext

2016-09-22
09:24
 Measurement of $W$ boson angular distributions in events with high transverse momentum jets at $\sqrt{s}=$ 8 TeV using the ATLAS detector / ATLAS Collaboration The $W$ boson angular distribution in events with high transverse momentum jets is measured using data collected by the ATLAS experiment from proton--proton collisions at a centre-of-mass energy $\sqrt{s}=$ 8 TeV at the Large Hadron Collider, corresponding to an integrated luminosity of 20.3 fb$^{-1}$. The focus is on the contributions to $W$ + jets processes from real $W$ emission, which is achieved by studying events where a muon is observed close to a high transverse momentum jet. [...] arXiv:1609.07045; CERN-EP-2016-182.- Geneva : CERN, 2016 - 38 p. - Published in : Phys. Lett. B xx (2016) xx Article from SCOAP3: PDF; Fulltext: PDF; External links: Previous draft version; Preprint

2016-09-16
07:42
 Differential branching fraction and angular moments analysis of the decay $B^0 \to K^+ \pi^- \mu^+ \mu^-$ in the $K^*_{0,2}(1430)^0$ region / LHCb collaboration Measurements of the differential branching fraction and angular moments of the decay $B^0 \to K^+ \pi^- \mu^+ \mu^-$ in the $K^*_{0,2}(1430)^0$ in the $K^+\pi^-$ invariant mass range $1330 < m (K^+ \pi^-) <1530~ \text{MeV}/c^2$ are presented. Proton-proton collision data are used, corresponding to an integrated luminosity of 3 fb$^{-1}$ collected by the LHCb experiment. [...] arXiv:1609.04736; CERN-EP-2016-215; LHCB-PAPER-2016-025.- Geneva : CERN, 2016 - 25 p. - Published in : J. High Energy Phys. 12 (2016) 065 Fulltext: PDF; Related data file(s): ZIP; Related supplementary data file(s): ZIP;

2016-09-15
13:20
 Search for dark matter in association with a Higgs boson decaying to $b$-quarks in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector / ATLAS Collaboration A search for dark matter pair production in association with a Higgs boson decaying to a pair of bottom quarks is presented, using 3.2 $fb^{-1}$ of $pp$ collisions at a centre-of-mass energy of 13 TeV collected by the ATLAS detector at the LHC. The decay of the Higgs boson is reconstructed as a high-momentum $b\bar{b}$ system with either a pair of small-radius jets, or a single large-radius jet with substructure. [...] arXiv:1609.04572; CERN-EP-2016-181.- Geneva : CERN, 2016 - 36 p. - Published in : Phys. Lett. B 765 (2016) 11 Article from SCOAP3: PDF; Fulltext: PDF; External links: Previous draft version; Preprint

2016-09-14
14:52
 A measurement of material in the ATLAS tracker using secondary hadronic interactions in 7 TeV pp collisions / ATLAS Collaboration Knowledge of the material in the ATLAS inner tracking detector is crucial in understanding the reconstruction of charged-particle tracks, the performance of algorithms that identify jets containing \emph{b}-hadrons and is also essential to reduce background in searches for exotic particles that can decay within the inner detector volume. Interactions of primary hadrons produced in \emph{pp} collisions with the material in the inner detector are used to map the location and amount of this material. [...] arXiv:1609.04305; CERN-EP-2016-137.- Geneva : CERN, 2016 - 45 p. - Published in : J. Instrum. 11 (2016) P11020 Fulltext: PDF; External links: Previous draft version; Preprint

2016-09-13
09:04
 Search for Higgs-like bosons decaying into long-lived exotic particles / LHCb collaboration A search is presented for massive long-lived particles, in the 20-60 GeV mass range with lifetimes between 5 and 100 ps. The dataset used corresponds to 0.62 1\fb of proton-proton collision data collected by the LHCb detector at sqrt(s)=7 TeV. [...] arXiv:1609.03124; LHCB-PAPER-2016-014; CERN-EP-2016-188.- Geneva : CERN, 2016 - 29 p. - Published in : Eur. Phys. J. C 76 (2016) 664 Article from SCOAP3: PDF; Fulltext: PDF; Related data file(s): ZIP;