# CERN Preprints

2017-06-26
07:19
 Event activity-dependence of jet production in p-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV measured with semi-inclusive hadron+jet correlations by ALICE / Krizek, Filip /for the ALICE We report measurement of the semi-inclusive distribution of charged-particle jets recoiling from a high transverse momentum ($p_{\rm T}$) hadron trigger, for p-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV, in p-Pb events classified by event activity. This observable has been measured in pp and Pb-Pb collisions at the LHC, providing a new probe to measure quenching. [...] arXiv:1706.07612.- 2017-06-23 Fulltext: PDF;

2017-06-26
07:19
 The Single-Phase ProtoDUNE Technical Design Report / Abi, B. (Oxford U.) ; Acciarri, R. (Fermilab) ; Acero, M.A. (U. Atlantico, Barranquilla) ; Adamowski, M. (Fermilab) ; Adams, C. (Yale U.) ; Adamson, P. (Fermilab) ; Ahmad, Z. (Calcutta, VECC) ; Albright, C.H. (Fermilab) ; Alion, T. (South Carolina U.) ; Amador, E. (Texas U., Arlington) et al. /DUNE ProtoDUNE-SP is the single-phase DUNE Far Detector prototype that is under construction and will be operated at the CERN Neutrino Platform (NP) starting in 2018. ProtoDUNE-SP, a crucial part of the DUNE effort towards the construction of the first DUNE 10-kt fiducial mass far detector module (17 kt total LAr mass), is a significant experiment in its own right. [...] FERMILAB-DESIGN-2017-02; arXiv:1706.07081.- 2017-06-21 - 165 p. Fulltext: PDF; External link: FERMILABDESIGN

2017-06-25
23:07
 Measurement of the semileptonic $\mathrm{ t \bar{t} }$+$\gamma$ production cross section in pp collisions at $\sqrt{s}=$ 8 TeV A measurement of the cross section for top quark-antiquark ($\mathrm{ t \bar{t} }$) pairs produced in association with a photon in proton-proton collisions at $\sqrt{s}=$ 8 TeV is presented. [...] CERN-EP-2017-112 ; CMS-TOP-14-008-003. - 2017. Additional information for the analysis - CMS AuthorList - Fulltext

2017-06-24
09:59
 Status of the Charged Higgs Boson in Two Higgs Doublet Models / Arbey, A. ; Mahmoudi, F. ; Stal, O. ; Stefaniak, T. The existence of charged Higgs boson(s) is inevitable in models with two (or more) Higgs doublets. Hence, their discovery would constitute unambiguous evidence for new physics beyond the Standard Model (SM). [...] CERN-TH-2017-137; SCIPP-17-07; arXiv:1706.07414.- 2017-06-22 - 35 p. Fulltext: PDF;

2017-06-24
09:59
 Prompt and nonprompt J/$\psi$ production and nuclear modification in $p$Pb collisions at $\sqrt{s_{\text{NN}}}= 8.16$ TeV / LHCb Collaboration The production of J/$\psi$ mesons is studied in proton-lead collisions at the centre-of-mass energy per nucleon pair $\sqrt{s_{\text{NN}}}=8.16$ TeV with the LHCb detector at the LHC. [...] arXiv:1706.07122 ; CERN-EP-2017-122 ; LHCB-PAPER-2017-014. - 2017. Full text - Fulltext - Related data files

2017-06-24
09:59
 A determination of the fragmentation functions of pions, kaons, and protons with faithful uncertainties / Bertone, Valerio ; Carrazza, Stefano ; Hartland, Nathan P. ; Nocera, Emanuele R. ; Rojo, Juan We present NNFF1.0, a new determination of the fragmentation functions (FFs) of charged pions, charged kaons, and protons/antiprotons from an analysis of single-inclusive hadron production data in electron-positron annihilation. This determination, performed at leading, next-to-leading, and next-to-next-to-leading order in perturbative QCD, is based on the NNPDF methodology, a fitting framework designed to provide a statistically sound representation of FF uncertainties and to minimise any procedural bias. [...] CERN-TH-2017-122; OUTP-16-15P; NIKHEF-2016-047; arXiv:1706.07049.- 2017-06-21 - 50 p. Fulltext: PDF;

2017-06-24
09:59
 Study of charmonium production in $b$-hadron decays and first evidence for the decay $B_s \rightarrow \phi \phi \phi$ / LHCb Collaboration Using decays to $\phi$-meson pairs, the inclusive production of charmonium states in $b$-hadron decays is studied with $pp$ collision data corresponding to an integrated luminosity of $3.0fb^{-1}$, collected by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. Denoting by $B_C\equiv B(b\to CX)\times B(C\to\phi\phi)$ the inclusive branching fraction of a $b$ hadron to a charmonium state $C$ that decays into a pair of $\phi$ mesons, ratios $R^{C1}_{C2}\equiv B_{C1}/B_{C2}$ are determined as $R^{\chi_{c0}}_{\eta_c(1S)}=0.147\pm0.023\pm0.011$, $R^{\chi_{c1}}_{\eta_c (1S)}=0.073\pm0.016\pm0.006$, $R^{\chi_{c2}}_{\eta_c (1S)}=0.081\pm0.013\pm0.005$, $R^{\chi_{c1}}_{\chi_{c0}}=0.50\pm0.11\pm0.01$, $R^{\chi_{c2}}_{\chi_{c0}}=0.56\pm0.10\pm0.01$ and $R^{\eta_c (2S)}_{\eta_c(1S)}=0.040\pm0.011\pm0.004$. [...] LHCB-PAPER-2017-007; CERN-EP-2017-099; arXiv:1706.07013.- 2017-06-21 Fulltext: PDF;

2017-06-24
09:59
 High-Precision Calculations in Strongly Coupled Quantum Field Theory with Next-to-Leading-Order Renormalized Hamiltonian Truncation / Elias-Miro, Joan ; Rychkov, Slava ; Vitale, Lorenzo G. Hamiltonian Truncation (a.k.a. Truncated Spectrum Approach) is an efficient numerical technique to solve strongly coupled QFTs in d=2 spacetime dimensions. [...] CERN-TH-2017-132; arXiv:1706.06121.- 2017-06-19 - 7 p. Preprint: PDF;

2017-06-24
09:59
 Phase structure of complete asymptotically free SU($N_c$) theories with quarks and scalar quarks / Hansen, Frederik F. ; Janowski, Tadeusz ; Langaeble, Kasper ; Mann, Robert B. ; Sannino, Francesco ; Steele, Tom G. ; Wang, Zhi-Wei We determine the phase diagram of complete asymptotically free SU($N_c$) gauge theories featuring $N_s$ complex scalars and $N_f$ Dirac quarks transforming according to the fundamental representation of the gauge group. The analysis is performed at the maximum known order in perturbation theory. [...] CP3-ORIGINS-2017-022-DNRF90; CERN-TH-2017-133; arXiv:1706.06402.- 2017-06-20 - 37 p. Fulltext: PDF;

2017-06-24
09:59
 On the Catalysis of the Electroweak Vacuum Decay by Black Holes at High Temperature / Canko, D. (Athens Natl. Capodistrian U.) ; Gialamas, I. (Athens Natl. Capodistrian U.) ; Jelic-Cizmek, G. (Geneva U., Dept. Theor. Phys. ; Geneva U., CAP) ; Riotto, A. (Geneva U., Dept. Theor. Phys. ; Geneva U., CAP ; CERN ; CERN) ; Tetradis, N. (Athens Natl. Capodistrian U. ; Athens U. ; CERN ; Athens U. ; CERN ; Athens U. ; CERN) We study the effect of primordial black holes on the classical rate of nucleation of AdS regions within the standard electroweak vacuum at high temperature. We find that the energy barrier for transitions to the new vacuum, which determines the exponential suppression of the nucleation rate, can be reduced significantly, or even eliminated completely, in the black-hole background if the Standard Model Higgs is coupled to gravity through the renormalizable term $\xi {\cal R} h^2$.. arXiv:1706.01364.- 2017-06-05 - 15 p. Fulltext: PDF;