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Assessing the performance under ionising radiation of lead tungstate scintillators for EM calorimetry in the CLAS12 Forward Tagger / Fegan, S (Genoa U. ; INFN, Genoa) ; Auffray, E (CERN) ; Battaglieri, M (Genoa U. ; INFN, Genoa) ; Buchanan, E (Glasgow U.) ; Caiffi, B (Genoa U. ; INFN, Genoa) ; Celentano, A (Genoa U. ; INFN, Genoa) ; Colaneri, L (INFN, Rome2 ; Rome U., Tor Vergata) ; D׳Angelo, A (INFN, Rome2 ; Rome U., Tor Vergata) ; De Vita, R (Genoa U. ; INFN, Genoa) ; Dormenev, V (U. Giessen, II. Phys. Inst.) et al.
The well-established technology of electromagnetic calorimetry using Lead Tungstate crystals has recently seen an upheaval, with the closure of one of the most experienced large-scale suppliers of such crystals, the Bogoroditsk Technical Chemical Plant (BTCP), which was instrumental in the development of mass production procedures for PWO-II, the current benchmark for this scintillator. Obtaining alternative supplies of Lead Tungstate crystals matching the demanding specifications of contemporary calorimeter devices now presents a significant challenge to detector research and development programmes..
2015 - 8 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 789 (2015) 101-108 Elsevier Open Access article: PDF;

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Performance of the LHCb RICH detector at the LHC / Adinolfi, M. (Bristol U.) ; Aglieri Rinella, G. (CERN) ; Albrecht, E. (CERN) ; Bellunato, T. (INFN, Milan Bicocca) ; Benson, S. (Edinburgh U.) ; Blake, T. (CERN ; Imperial Coll., London) ; Blanks, C. (Imperial Coll., London) ; Brisbane, S. (Oxford U.) ; Brook, N.H. (Bristol U.) ; Calvi, M. (INFN, Milan Bicocca ; Milan U.) et al. /LHCb RICH group
The LHCb experiment has been taking data at the Large Hadron Collider (LHC) at CERN since the end of 2009. One of its key detector components is the Ring-Imaging Cherenkov (RICH) system. [...]
arXiv:1211.6759; LHCB-DP-2012-003.- Geneva : CERN, 2013 - 25 p. - Published in : Eur. Phys. J. C 73 (2013) 2431 Fulltext: PDF; Springer Open Access article: PDF; External link: Preprint

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Measurement of $\Upsilon$ production in $pp$ collisions at $\sqrt{s} = 7$ TeV / LHCb Collaboration
The production of Upsilon(1S), Upsilon(2S) and Upsilon(3S) mesons in proton-proton collisions at the centre-of-mass energy of sqrt(s)=7 TeV is studied with the LHCb detector. The analysis is based on a data sample of 25 pb-1 collected at the Large Hadron Collider. [...]
arXiv:1202.6579; CERN-PH-EP-2012-051; LHCB-PAPER-2011-036; CERN-PH-EP-2012-051; LHCB-PAPER-2011-036.- Geneva : CERN, 2012-06-07 - 22 p. - Published in : Eur. Phys. J. C 72 (2012) 2025 Fulltext: PDF; Related data file(s): ZIP; Springer Open Access article: PDF; External link: DURHAM

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Measurement of the ratio of branching fractions ${\cal B}(B^0 \to K^{\ast 0} \gamma)/{\cal B}(B^0_s \to \phi \gamma)$ / LHCb Collaboration
The ratio of branching fractions of the radiative

$B$ decays

$B^0\to K^{*0}\gamma$ and

$B^0_s\to \phi\gamma$ has been measured using

$0.37\,$ fb

$^{-1}$ of

$pp$ collisions at a centre of mass energy of

$\sqrt{s}=7\,$ TeV, collected by the LHCb experiment. The value obtained is

$\begin{equation} \frac{{\cal B}(B^0\to K^{*0}\gamma)}{{\cal B}(B^0_s\to \phi\gamma)} = 1.12 \pm 0.08^{+0.06}_{-0.04}\phantom{.}^{+0.09}_{-0.08},\nonumber \end{equation}$ where the first uncertainty is statistical, the second systematic and the third is associated to the ratio of fragmentation fractions

$f_s/f_d$ . [...]
arXiv:1202.6267; LHCB-PAPER-2011-042; CERN-PH-EP-2012-041; CERN-PH-EP-2012-041; LHCB-PAPER-2011-042.- Geneva : CERN, 2012 - 15 p. - Published in : Phys. Rev. D 85 (2012) 112013 APS Open Access article: PDF; Fulltext: PDF; Related data file(s): ZIP; External link: Preprint

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Opposite-side flavour tagging of $B$ mesons at the LHCb experiment / LHCb Collaboration
The calibration and performance of the opposite-side flavour tagging algorithms used for the measurements of time-dependent asymmetries at the LHCb experiment are described. The algorithms have been developed using simulated events and optimized and calibrated with B+ -> J/psi K+, B0 -> J/psi K*0 and B0 -> D*- mu+ nu_mu decay modes with 0.37 fb^-1 of data collected in pp collisions at sqrt(s) = 7 TeV during the 2011 physics run. [...]
arXiv:1202.4979; CERN-PH-EP-2012-039; LHCB-PAPER-2011-027; CERN-PH-EP-2012-039; LHCB-PAPER-2011-027.- Geneva : CERN, 2012-06-07 - 22 p. - Published in : Eur. Phys. J. C 72 (2012) 2022 Fulltext: PDF; Related data file(s): ZIP; Springer Open Access article: PDF; External link: Preprint

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Measurement of the $B^\pm$ production cross-section in $pp$ collisions at $\sqrt{s}=7$ TeV / LHCb Collaboration
The production of B+- mesons in proton-proton collisions at sqrt(s)=7 TeV is studied using 35 pb-1 of data collected by the LHCb detector. The B+- mesons are reconstructed exclusively in the B+- -> J/psi K+- mode, with J/psi -> mu+ mu-. [...]
arXiv:1202.4812; CERN-PH-EP-2012-047; LHCB-PAPER-2011-043; CERN-PH-EP-2012-047; LHCB-PAPER-2011-043.- Geneva : CERN, 2012 - 7 p. - Published in : JHEP 04 (2012) 093 Fulltext: PDF; Related data file(s): ZIP; Springer Open Access article: PDF; External link: DURHAM

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Search for the $X(4140)$ state in $B^+\to J/\psi\phi K^+$ decays / LHCb Collaboration
A search for the X(4140) state in B+ to J/psi phi K+ decays is performed with 0.37 fb-1 of pp collisions at sqrt(s)=7 TeV collected by the LHCb experiment. No evidence for this state is found, in 2.4 sigma disagreement with a measurement by CDF. [...]
arXiv:1202.5087; CERN-PH-EP-2012-004; LHCB-PAPER-2011-033; CERN-PH-EP-2012-004; LHCB-PAPER-2011-033.- Geneva : CERN, 2012 - 15 p. - Published in : Phys. Rev. D 85 (2012) 091103 APS Open Access article: PDF; Fulltext: PDF; Related data file(s): ZIP; External link: Preprint

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Determination of the sign of the decay width difference in the $B^0_s$ system / LHCb Collaboration
The interference between the

$K^+K^-$ S-wave and P-wave amplitudes in

$B_s \rightarrow J/\psi K^+K^-$ decays with the

$K^+K^-$ pairs in the region around the

$\phi(1020)$ resonance is used to determine the variation of the difference of the strong phase between these amplitudes as a function of

$K^+K^-$ invariant mass. Combined with the results from our

$CP$ asymmetry measurements in the

$B_s \rightarrow J/\psi \phi$ decays, we conclude that the

$B_s$ mass eigenstate that is almost

$CP =+1$ is lighter and decays faster than the mass eigenstate that is almost

$CP =-1$ . [...]
arXiv:1202.4717; CERN-PH-EP-2012-050; LHCB-PAPER-2011-028; CERN-PH-EP-2012-050; LHCB-PAPER-2011-028.- Geneva : CERN, 2012 - 7 p. - Published in : Phys. Rev. Lett. 108 (2012) 241801 APS Open Access article: PDF; Fulltext: PDF; Related data file(s): ZIP; External link: Preprint

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Measurement of the cross-section ratio $\sigma(\chi_{c2})/\sigma(\chi_{c1})$ for prompt $\chi_c$ production at $\sqrt{s}=7$ TeV / LHCb Collaboration
The prompt production of the charmonium

$\chi_{c1}$ and

$\chi_{c2}$ mesons has been studied in proton-proton collisions at the Large Hadron Collider at a centre-of-mass energy of

$\sqrt{s}=7$ TeV. The

$\chi_c$ mesons are identified through their decays

$\chi_c\to J/\psi\,\gamma$ with

$J/\psi \to \mu^+ \mu^-$ using 36

$\mathrm{pb^{-1}}$ of data collected by the LHCb detector in 2010. [...]
arXiv:1202.1080; LHCB-PAPER-2011-019; CERN-PH-EP-2011-227; LHCB-PAPER-2011-019; CERN-PH-EP-2011-227.- Geneva : CERN, 2013-07-16 - 9 p. - Published in : Phys. Lett. B 714 (2012) 215-223 Elsevier Open Access article: PDF; Fulltext: PDF; Related data file(s): ZIP; External link: DURHAM

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10.

Searches for Majorana neutrinos in $B^-$ decays / LHCb Collaboration
Searches for heavy Majorana neutrinos in B- decays in final states containing hadrons plus a \mu- \mu- pair have been performed using 0.41/fb of data collected with the LHCb detector in proton-proton collisions at a center-of-mass energy of 7 TeV. The D+ \mu- \mu- and D*+ \mu- \mu- final states can arise from the presence of virtual Majorana neutrinos of any mass. [...]
arXiv:1201.5600; CERN-PH-EP-2012-006; LHCB-PAPER-2011-038; CERN-PH-EP-2012-006; LHCB-PAPER-2011-038.- 2012 - 18 p. - Published in : Phys. Rev. D 85 (2012) 112004 APS Open Access article: PDF; Fulltext: PDF; Related data file(s): ZIP; External link: Preprint

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See also: similar author names
34	Fanchini, E.
1	Fanchini, Erica

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