# CERN Preprints

2021-09-21
16:43
 Measurement of the $c$-jet mistagging efficiency in $t\bar{t}$ events using $pp$ collision data at $\sqrt{s}=13$ TeV collected with the ATLAS detector A technique is presented to measure the efficiency with which $c$-jets are mistagged as b-jets (mistagging efficiency) using $t\bar{t}$ events, where one of the $W$ bosons decays into an electron or muon and a neutrino and the other decays into a quark-antiquark pair. [...] CERN-EP-2021-166. - 2021. Fulltext - Previous draft version

2021-09-21
04:02
 An Altarelli Cocktail for the MiniBooNE Anomaly? / Brdar, Vedran (Fermilab ; Northwestern U.) ; Kopp, Joachim (CERN ; Mainz U., Inst. Phys.) We critically examine a number of theoretical uncertainties affecting the MiniBooNE short-baseline neutrino oscillation experiment in an attempt to better understand the observed excess of electron-like events [...] arXiv:2109.08157 ; CERN-TH-2021-131 ; FERMILAB-PUB-21-450-T ; MITP-21-042 ; NUHEP-TH/21-14. - 25 p.

2021-09-19
15:48
 On the chiral anomaly and the Yang-Mills gradient flow / Lüscher, Martin (CERN ; Bern U. ; U. Bern, AEC) There are currently two singularity-free universal expressions for the topological susceptibility in QCD, one based on the Yang-Mills gradient flow and the other on density-chain correlation functions. [...] arXiv:2109.07965 ; CERN-TH-2021-132. - 9 p.

2021-09-19
15:48
 Measurement of $\mathrm{D}$-meson production as a function of charged-particle multiplicity in proton--proton collisions at $\sqrt{s} = 13$ TeV with ALICE at the LHC / Bailung, Yoshini (Indian Inst. Tech., Indore) Heavy quarks (charm and beauty) are produced in hard-scattering processes and the study of their production in proton--proton (pp) collisions is an important test for calculations based on perturbative Quantum Chromodynamics (pQCD). [...] arXiv:2109.07992. - 5 p.

2021-09-19
15:38
 Charmonium suppression in ultra-relativistic Proton-Proton collisions at LHC energies: A hint for QGP in small systems / Singh, Captain R. (Indian Inst. Tech., Indore) ; Deb, Suman (Indian Inst. Tech., Indore) ; Sahoo, Raghunath (Indian Inst. Tech., Indore ; CERN) ; Alam, Jan-e (Calcutta, VECC) Proton-proton ($pp$) collision has been considered as a baseline to study the system produced in relativistic heavy-ion (AA) collisions with the basic assumption that no thermal medium is formed in $pp$ collisions. [...] arXiv:2109.07967. - 14 p.

2021-09-17
13:44
 Observation of the suppressed $\Lambda^0_b\to D p K^-$ decay with $D\to K^+ \pi^-$ and measurement of its CP asymmetry / LHCb Collaboration A study of $\Lambda^0_b$ baryon decays to the $DpK^-$ final state is presented based on a proton-proton collision data sample corresponding to an integrated luminosity of 9fb$^{-1}$ collected with the LHCb detector. [...] arXiv:2109.02621 ; LHCb-PAPER-2021-027 ; CERN-EP-2021-179 ; LHCB-PAPER-2021-027. - 2021. - 21 p. Fulltext - Related data file(s)

2021-09-17
09:37
 Study of $Z$ bosons produced in association with charm in the forward region / LHCb Collaboration The fraction of $Z+$jet events that contain a charm jet is measured for the first time in the forward region of proton-proton collisions. [...] arXiv:2109.08084 ; LHCb-PAPER-2021-029 ; CERN-EP-2021-176 ; LHCB-PAPER-2021-029. - 2021. Fulltext - Related data file(s) - Supplementary information

2021-09-17
08:16
 Search for heavy resonances decaying to Z($\nu\bar{\nu}$)V($\mathrm{q}\mathrm{\bar{q}}'$) in proton-proton collisions at $\sqrt{s} =$ 13 TeV / CMS Collaboration A search is presented for heavy bosons decaying to Z($\nu\bar{\nu}$)V($\mathrm{q}\mathrm{\bar{q}}'$), where V can be a W or a Z boson. [...] arXiv:2109.08268 ; CMS-B2G-20-008 ; CERN-EP-2021-158 ; CMS-B2G-20-008-003. - 2021. Additional information for the analysis - CMS AuthorList - Fulltext

2021-09-17
04:42
 Theory Closing Talk / Giudice, Gian F. In this talk I make some remarks about the search for the origin of the electroweak scale.. arXiv:2109.07176 ; CERN-TH-2021-134. -

2021-09-16
11:03
 Search for the doubly charmed baryon $\it{\Xi}_{cc}^{+}$ in the $\it{\Xi}_{c}^{+} \pi^{-} \pi^{+}$ final state / LHCb Collaboration A search for the doubly charmed baryon $\it{\Xi}_{cc}^{+}$ is performed in the $\it{\Xi}_{cc}^{+} \rightarrow \it{\Xi}_{c}^{+} \pi^{-} \pi^{+}$ decay mode, where the $\it{\Xi}_{c}^{+}$ baryon is reconstructed in the $p K^{-} \pi^{+}$ final state. [...] arXiv:2109.07292 ; LHCb-PAPER-2021-019 ; CERN-EP-2021-155 ; LHCB-PAPER-2021-019. - 2021. Fulltext - Related data file(s) - Supplementary information