# EP Preprints

Ostatnio dodane:
2020-07-28
23:43
 Cross-section measurements of top-quark pair production in association with a hard photon at 13 TeV with the ATLAS detector / Zoch, Knut 25 years after the top quark's discovery, the Large Hadron Collider at CERN produces proton-proton collision data on unprecedented scales at unprecedented energies – and has heralded an era of top-quark precision measurements [...] arXiv:2007.14701 ; CERN-THESIS-2020-081 ; II.Physik-UniG\"o-Diss-2020/01 II.Physik-UniGö-Diss-2020/01. - 171 p.

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2020-07-24
16:17
 First branching fraction measurement of the suppressed decay $\Xi_c^0\to \pi^-\Lambda_c^+$ / LHCb Collaboration The $\Xi_c^0$ baryon is unstable and usually decays into charmless final states by the $c \to s u\overline{d}$ transition. [...] arXiv:2007.12096 ; CERN-EP-2020-129 ; LHCb-PAPER-2020-016 ; LHCB-PAPER-2020-016. - 2020. Fulltext - Related data file(s) - Fulltext

2020-07-23
11:27
 First observation of the decay $\Lambda_b^0 \to \eta_c(1S) p K^-$ / LHCb Collaboration The decay $\Lambda_b^0 \to \eta_c(1S) p K^-$ is observed for the first time using a data sample of proton-proton collisions, corresponding to an integrated luminosity of 5.5 $fb^{-1}$, collected with the LHCb experiment at a centre-of-mass energy of 13 TeV. [...] arXiv:2007.11292 ; LHCb-PAPER-2020-012 ; CERN-EP-2020-124 ; LHCB-PAPER-2020-012. - 2020. Fulltext - Related data file(s) - Supplementary information - Fulltext

2020-07-14
12:16
 Observation of enhanced double parton scattering in proton-lead collisions at $\sqrt{s_\mathrm{NN}}=8.16$ TeV / LHCb Collaboration A study of prompt charm-hadron pair production in proton-lead collisions at $\sqrt{s_\mathrm{NN}}= 8.16$ TeV is performed using data corresponding to an integrated luminosity of about 30 nb${}^{-1}$, collected with the LHCb experiment. [...] arXiv:2007.06945 ; LHCb-PAPER-2020-010 ; CERN-EP-2020-119 ; LHCB-PAPER-2020-010. - 2020. - 26 p. Fulltext - Related data file(s) - Supplementary information - Fulltext

2020-07-14
12:00
 Technical Note N°92 : Calculation of Eddy curent effects in the vacuum chambers of the BOOSTER Synchrotron quadrupole and bending magnets / Asner, A MPS-INT-MA-67-11 ; CERN-MPS-INT-MA-67-11. - 1967. - 17 p. Full text

2020-07-09
14:01
 First observation of the decay $B^0 \rightarrow D^0 \overline{D}{}^0 K^+ \pi^-$ / LHCb Collaboration The first observation of the decay $B^0 \rightarrow D^0 \overline{D}{}^0 K^+ \pi^-$ is reported using proton-proton collision data corresponding to an integrated luminosity of 4.7 $\mathrm{fb}^{-1}$ collected by the LHCb experiment in 2011, 2012 and 2016. [...] arXiv:2007.04280 ; LHCb-PAPER-2020-015 ; CERN-EP-2020-112 ; LHCB-PAPER-2020-015. - 2020. - 23 p, 23 p. Fulltext - Related data file(s) - Fulltext

2020-07-06
14:43
 Searches for low-mass dimuon resonances / LHCb Collaboration Searches are performed for low-mass dimuon resonances, $X$, produced in proton-proton collisions at a center-of-mass energy of 13 TeV, using a data sample corresponding to an integrated luminosity of 5.1 fb$^{-1}$ and collected with the LHCb detector. [...] arXiv:2007.03923 ; LHCb-PAPER-2020-013 ; CERN-EP-2020-114 ; LHCB-PAPER-2020-013. - 2020. - 27 p, 27 p. Fulltext - Related data file(s) - Supplementary information - Fulltext

2020-07-01
16:57
 Observation of structure in the $J/\psi$-pair mass spectrum / LHCb Collaboration Using proton-proton collision data at centre-of-mass energies of $\sqrt{s} = 7$, $8$ and $13\mathrm{\,TeV}$ recorded by the LHCb experiment at the Large Hadron Collider, corresponding to an integrated luminosity of $9\mathrm{\,fb}^{-1}$, the invariant mass spectrum of $J/\psi$ pairs is studied. [...] arXiv:2006.16957 ; CERN-EP-2020-115 ; LHCb-PAPER-2020-011 ; LHCB-PAPER-2020-011. - 2020. - 29 p. PRESSRELEASE - Related data file(s) - Fulltext - Fulltext

2020-06-09
16:19
 Search for $CP$ violation in $\Xi_c^+\rightarrow pK^-\pi^+$ decays using model-independent techniques / LHCb Collaboration A first search for $CP$ violation in the Cabibbo-suppressed $\Xi_c^+\rightarrow pK^-\pi^+$ decay is performed using both a binned and an unbinned model-independent technique in the Dalitz plot. [...] arXiv:2006.03145 ; CERN-EP-2020-069 ; LHCb-PAPER-2019-026 ; LHCB-PAPER-2019-026. - 2020. - 26 p. Related data file(s) - Fulltext

2020-06-04
11:31
 Longitudinal space-charge forces at transition / Sørenssen, A MPS-INT-MU-EP-66-1 ; CERN-MPS-INT-MU-EP-66-1. - 1966. - 48 p. Full text