Browsing Recerca by Title
Now showing items 1004-1023 of 2716
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First Observation of the Decay B+c→J/ψπ+π−π+
(Physical Review Letters, 2012, Vol. 108, No. 25 (Juny), 2012-06-19)The decay B+c→J/ψπ+π−π+ is observed for the first time, using 0.8 fb−1 of pp collisions at √s=7 TeV collected by the LHCb experiment. The ratio of branching fractions B(B+c→J/ψπ+π−π+)/B(B+c→J/ψπ+) is ... -
First observation of the decay B+→π+μ+μ−
(Journal of High Energy Physics, 2012, Vol. 2012, No.12 (Desembre), 2012-12-21)A discovery of the rare decay B + → π + μ + μ − is presented. This decay is observed for the first time, with 5.2 σ significance. The observation is made using pp collision data, corresponding to an ... -
First Observation of the Decay B0s→K−μ+νμ and a Measurement of |Vub|/|Vcb|
(Physical Review Letters, 2021, Vol. 126, 2021-02)The first observation of the suppressed semileptonic B0s→K−μ+νμ decay is reported. Using a data sample recorded in pp collisions in 2012 with the LHCb detector, corresponding to an integrated luminosity ... -
First observation of the decay B0s→K∗0K∗0
(Physics Letters B, 2012,Vol. 709, No. 1-2 (Març 2012), 2012-03-13)The first observation of the decay $\kstarkstar$ is reported using 35\invpb of data collected by LHCb in proton-proton collisions at a centre-of-mass energy of 7 TeV. A total of $49.8 \pm 7.5$ $B^0_s ... -
First observation of the decay B0s→ϕK¯¯¯¯¯∗0
(Journal of High Energy Physics, 2013, Vol. 2013, No.10 (Octubre), 2013-10-28)The first observation of the decay B0s→ϕK¯¯¯¯¯∗0 is reported. The analysis is based on a data sample corresponding to an integrated luminosity of 1.0 fb−1 of pp collisions at s√=7 TeV, collected with ... -
First observation of the decay Bbar0s->D0K*0 and a measurement of the ratio of branching fractions Br(Bbar0s->D0K*0) / Br(Bbar0s->D0 rho0)
(Physics Letters B , 2011, Vol. 706, No. 1 (Novembre), 2011-11-30)The first observation of the decay B0s →D0K∗0 using pp data collected by the LHCb detector at a centreof- mass energy of 7 TeV, corresponding to an integrated luminosity of 36 pb−1, is reported. A ... -
First observation of the decay B¯0s→D0K∗0 and a measurement of the ratio of branching fractions B(B¯0s→D0K∗0)/B(B¯0→D0ρ0)
(Physics Letters B, Vol. 706, No. 1 (Novembre 2011), 2011-11-30)The first observation of the decay B¯s0→D0K⁎0 using pp data collected by the LHCb detector at a centre-of-mass energy of 7 TeV, corresponding to an integrated luminosity of 36 pb−1 , is reported. A ... -
First Observation of the Decay B∗s2(5840)0→B*+K− and Studies of Excited B0s Mesons
(Physical Review Letters, 2013, Vol. 110, No. 15 (Abril), 2013-04-09)The properties of the orbitally excited (L=1) B0s states are studied by using 1.0 fb−1 of pp collisions at √s=7 TeV collected with the LHCb detector. The first observation of the B∗s2(5840)0 meson ... -
First observation of the decays ¯B0(s) → D+sK−π+π− and ¯B0s → Ds1(2536)+π−
(Physical Review D, 2012, Vol. 86 , No.11 (Desembre), 2012-12-20)The first observation of the decays ¯¯¯B0s→D+sK−π+π− and ¯¯¯B0→D+sK−π+π− are reported using an integrated luminosity of 1.0 fb−1 recorded by the LHCb experiment. The branching fractions, normalized ... -
First Observation of Top Quark Production in the Forward Region
(Physical Review Letters, 2015, Vol. 115, No. 11 (Setembre), 2015-09-08)Top quark production in the forward region in proton-proton collisions is observed for the first time. The W+b final state with W→μν is reconstructed using muons with a transverse momentum, pT, larger ... -
First observation of ¯¯¯B0→J/ψK+K− and search for ¯¯¯B0→J/ψϕ decays
(Physical Review D, 2013, Vol. 88 , No.7 (Octubre), 2013-10-14)The first observation of the ¯¯¯B0→J/ψK+K− decay is presented with a data sample corresponding to an integrated luminosity of 1.0 fb−1 of pp collisions at a center-of-mass energy of 7 TeV collected ... -
First observations of the rare decays B + → K + π + π − μ + μ − and B +→ ϕK + μ + μ −
(Journal of High Energy Physics, 2014, Vol. 2014, No.10 (Octubre), 2014-10-09)First observations of the rare decays B + → K + π + π − μ + μ − and B +→ ϕK +μ+μ− are presented using data corresponding to an integrated luminosity of 3.0 fb−1, collected by the LHCb experiment at ... -
Fisioterapia respiratoria post-COVID-19: algoritmo de decisión terapéutica
(Open Respiratory Archives, 2022, vol. 4, núm. 1, 100139, 2021-10-12)La pandemia causada por la enfermedad de la COVID-19 ha supuesto un gran reto para los profesionales del sistema sociosanitario, intensificándose con el manejo y atención de las manifestaciones clínicas ... -
Five ways of being a schoolteacher
(2020)This exploratory study consists of a description of the five schoolteachers’ identities that showed five different configurations of teacher’s I-positions. Thirty-one participants were interviewed via ... -
Flavour Tagging at LHCb
(2012-06)The identification of the flavour of reconstructed Bd and Bs mesons at production is necessary for the measurements of oscillations and time-dependent CP asymmetries. The calibration and performance of ... -
Fluència verbal i funcions neuropsicològiques en la malaltia del Parkinson
(Aloma, 2005, Núm. 17, 2005)S'han estudiant les funcions neuropsicològiques en una mostra de 96 pacients amb malaltia de Parkinson (MP) i 42 controls aparellats per gènere, edat, escolaritat i intel.ligència verbal. Els ... -
Fluid-structure interaction simulations outperform computational fluid dynamics in the description of thoracic aorta haemodynamics and in the differentiation of progressive dilation in Marfan syndrome patients
(Royal Society Open Science. Vol.7, n.2 (2020), 191752, 2020-02)Abnormal fluid dynamics at the ascending aorta may be at the origin of aortic aneurysms. This study was aimed at comparing the performance of computational fluid dynamics (CFD) and fluid–structure ... -
Follow-up on the U.S. Central Intelligence Agency’s (CIA) remote viewing experiments
(Brain and behavior, vol. 13, núm. 6, 2023, 2023-05-03)Objectives: Since 1972, the U.S. Central Intelligence Agency (CIA) commissioned several research programs on remote viewing (RV) that were progressively declassified from 1995 to 2003. The main objectives ... -
Fons Monturiol a la Biblioteca de l'Observatori de l'Ebre: anàlisi grafològica de les anotacions i estudi de l'estat de conservació
(2016-10-28)L’any 2009, aprofitant els actes de la celebració del 150è aniversari de l’avarament de l’Ictíneu, es va donar a conèixer la troballa dels llibres propietat de Narcís Monturiol amb una exposició. El ... -
Food aid in Europe in times of the COVID-19 crisis An international survey project
(2022-09)Food aid has become an integral part of welfare states across Europe, which was particularly striking during the socio-economic COVID-19 crisis. So far, however, there has been little cross-national ...