Performance of the LHCb RICH detector at the LHC

Adinolfi, M.; Rinella, G. Aglieri; Albrecht, E.; Bellunato, T.; Benson, S.; Blake, T.; Blanks, C.; Brisbane, S.; Brook, N. H.; Calvi, M.; Cameron, B.; Cardinale, R.; Carson, L.; Contu, A.; Coombes, M.; D’Ambrosio, C.; Easo, S.; Egede, U.; Eisenhardt, S.; Fanchini, E.; Fitzpatrick, C.; Fontanelli, F.; Forty, R.; Frei, C.; Gandini, P.; Gao, Rui; Ticó, J. Garra; Giachero, A.; Gibson, V.; Gotti, C.; Gregson, S.; Gys, T.; Haines, S. C.; Hampson, T.; Harnew, N.; Hill, D.; Hunt, P.; John, M.; Jones, C. R.; Johnson, D.; Kanaya, N.; Katvars, S.; Kerzel, U.; Kim, Y. M.; Koblitz, S.; Kucharczyk, M.; Lambert, D.; Main, A.; Maino, M.; Malde, S.; Mangiafave, N.; Matteuzzi, C.; Miní, G.; Mollén, A.; Morant, J.; Mountain, R.; Morris, J. V.; Muheim, F.; Mureşan, R.; Nardulli, J.; Owen, P.; Papanestis, A.; Patel, M.; Patrick, G. N.; Perego, D. L.; Pessina, G.; Petrolini, A.; Piedigrossi, D.; Plackett, R.; Playfer, S.; Powell, A.; Rademacker, J. H.; Ricciardi, S.; Rogers, G. J.; Sail, P.; Sannino, M.; Savidge, T.; Sepp, I.; Sigurdsson, Saevar; Soler, F. J. P.; Solomin, A.; Soomro, F.; Sparkes, A.; Spradlin, P.; Storaci, B.; Thomas, C.; Topp-Joergensen, S.; Torr, N.; Ullaland, O.; Vervink, K.; Voong, D.; Websdale, D.; Wilkinson, G.; Wotton, S. A.; Wyllie, K.; Xing, F.; Young, R.

doi:10.1140/epjc/s10052-013-2431-9

Cited by 451 publications

(330 citation statements)

References 22 publications

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“…The minimum distance of a track to a primary pp collision vertex, the impact parameter, is measured with a resolution of (15 + 29/p T ) µm, where p T is the component of p transverse to the beam, in GeV/c. Different types of charged hadrons are distinguished using information from two ring-imaging Cherenkov detectors [20]. The magnet polarity is reversed regularly to control systematic effects.…”

Section: Detector and Softwarementioning

confidence: 99%

Measurement of CP asymmetry in B s 0 → D s ∓ K ± decays

Aaij¹,

Adeva²,

Adinolfi³

et al. 2014

J. High Energ. Phys.

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Abstract:We report on measurements of the time-dependent CP violating observables in B 0 s → D ∓ s K ± decays using a dataset corresponding to 1.0 fb −1 of pp collisions recorded with the LHCb detector. We find the CP violating observables C f = 0.53±0.25±0.04, A ∆Γ f = 0.37±0.42±0.20, A ∆Γ f = 0.20±0.41±0.20, S f = −1.09±0.33±0.08, Sf = −0.36 ± 0.34 ± 0.08, where the uncertainties are statistical and systematic, respectively. Using these observables together with a recent measurement of the B 0 s mixing phase −2β s leads to the first extraction of the CKM angle γ from B 0 s → D ∓ s K ± decays, finding γ = (115 +28 −43 ) • modulo 180 • at 68% CL, where the error contains both statistical and systematic uncertainties.

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Section: Detector and Softwarementioning

confidence: 99%

Measurement of CP asymmetry in B s 0 → D s ∓ K ± decays

Aaij¹,

Adeva²,

Adinolfi³

et al. 2014

J. High Energ. Phys.

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“…The efficiency of the MLP selection is determined from simulation. Large data control samples of D 0 → K − π + , Λ → pπ − and Λ + c → pK − π + decays are employed [27] to determine the efficiency of the PID requirements. All other selection efficiencies, i.e.…”

Section: Jhep04(2017)162mentioning

confidence: 99%

Evidence for the two-body charmless baryonic decay B + → p Λ ¯ $$ {B}^{+}\to p\overline{\varLambda} $$

Aaij

Adeva

Adinolfi

et al. 2017

J. High Energ. Phys.

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A search for the rare two-body charmless baryonic decay B + → pΛ is performed with pp collision data, corresponding to an integrated luminosity of 3 fb −1 , collected by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. An excess of B + → pΛ candidates with respect to background expectations is seen with a statistical significance of 4.1 standard deviations, and constitutes the first evidence for this decay. The branching fraction, measured using the B + → K 0 S π + decay for normalisation, iswhere the first uncertainty is statistical and the second systematic.

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“…The efficiencies of offline selection requirements based on information from the RICH detectors are calculated using a data-driven method based on calibration samples [52] …”

Section: Efficiency Modelingmentioning

confidence: 99%

Studies of the resonance structure inD0→KS0K±π∓decays

Aaij¹,

Adeva²,

Adinolfi³

et al. 2016

Phys. Rev. D

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Amplitude models are applied to studies of resonance structure in D 0 → K 0 S K − π þ and D 0 → K 0 S K þ π − decays using pp collision data corresponding to an integrated luminosity of 3.0 fb −1 collected by the LHCb experiment. Relative magnitude and phase information is determined, and coherence factors and related observables are computed for both the whole phase space and a restricted region of 100 MeV=c 2 around the K Ã ð892Þ AE resonance. Two formulations for the Kπ S-wave are used, both of which give a good description of the data. The ratio of branching fractionsis measured to be 0.655 AE 0.004ðstatÞ AE 0.006ðsystÞ over the full phase space and 0.370 AE 0.003ðstatÞ AE 0.012ðsystÞ in the restricted region. A search for CP violation is performed using the amplitude models and no significant effect is found. Predictions from SU(3) flavor symmetry for K Ã ð892ÞK amplitudes of different charges are compared with the amplitude model results.

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Performance of the LHCb RICH detector at the LHC

Cited by 451 publications

References 22 publications

Measurement of CP asymmetry in B s 0 → D s ∓ K ± decays

Measurement of CP asymmetry in B s 0 → D s ∓ K ± decays

Evidence for the two-body charmless baryonic decay B + → p Λ ¯ $$ {B}^{+}\to p\overline{\varLambda} $$

Studies of the resonance structure inD0→KS0K±π∓decays

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