La Salle: Recent submissions
Now showing items 341-360 of 737
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First evidence for the annihilation decay mode B+→D+sφ
(Journal of High Energy Physics, 2013, Vol. 2013, No.2 (Febrer), 2013-02-07)Evidence for the hadronic annihilation decay mode B+→D+sϕ is found with greater than 3σ significance. The branching fraction and CP asymmetry are measured to be $ B(B+→D+sϕ)=(1.87+1.25−0.73(stat)±0.1 ... -
Searches for B0(s) →J/ψpp¯¯¯ and B + → J/ψ p p¯¯¯ π + decays
(Journal of High Energy Physics, 2013, Vol. 2013, No. (Setembre), 2013-09-02)The results of searches for B0(s)→J/ψ pp¯¯¯ and B + → J/ψ p p¯¯¯π+ decays are reported. The analysis is based on a data sample, corresponding to an integrated luminosity of 1.0 fb−1 of pp collisions, ... -
First evidence of direct CP violation in charmless two-body decays of B0s mesons
(Physical Review Letters , 2012, Vol. 108, No.20 (Maig), 2012-05-16)Using a data sample corresponding to an integrated luminosity of 0.35 fb−1 collected by LHCb in 2011, we report the first evidence of CP violation in the decays of B0s mesons to K±π∓ pairs, ... -
Angular analysis of the B0 → K*0e+e− decay in the low-q2 region
(Journal of High Energy Physics, 2015, Vol. 2015, No.4 (Abril), 2015-04-14)An angular analysis of the B0 → K*0e+e− decay is performed using a data sample, corresponding to an integrated luminosity of 3.0 fb−1, collected by the LHCb experiment in pp collisions at centre-of-mass ... -
Angular analysis and differential branching fraction of the decay B 0 s → ϕμ + μ −
(Journal of High Energy Physics, 2015, Vol. 2015, No.9 (Setembre), 2015-09-25)An angular analysis and a measurement of the differential branching fraction of the decay B 0 s → ϕμ + μ − are presented, using data corresponding to an integrated luminosity of 3.0 fb−1 of pp collisions ... -
First measurement of time-dependent CP violation in B0s→K+K− decays
(Journal of High Energy Physics, 2013, Vol. 2013, No.10 (Octubre), 2013-10-25)Direct and mixing-induced CP-violating asymmetries in B0s→K+K− decays are measured for the first time using a data sample of pp collisions, corresponding to an integrated luminosity of 1.0 fb−1, collected ... -
Measurements of the branching fractions of the decays B0s→D∓sK± and B0s→D−sπ+
(Journal of High Energy Physics, 2012, Vol. 2012, No.6 (Juny), 2012-06-20)The decay mode B0s→D∓sK± allows for one of the theoretically cleanest measurements of the CKM angle γ through the study of time-dependent CP violation. This paper reports a measurement of its branching ... -
Measurement of CP asymmetries and polarisation fractions in B0s→K∗0K¯¯¯¯¯∗0 decays
(Journal of High Energy Physics, 2015, Vol. 2015, No.7 (Juliol), 2015-07-30)An angular analysis of the decay B0s→K∗0K¯¯¯¯¯∗0 is performed using pp collisions corresponding to an integrated luminosity of 1.0 fb−1 collected by the LHCb experiment at a centre-of-mass energy s√=7 ... -
A Three Methods Proactive Improvement Model for Buildings Construction Processes
(Sustainability, 2020, Vol. 12, No 10, 2020-05)This paper proposes a proactive model to improve the overall performance of constructionprocesses. The main advantage is that potential waste and associate impacts could be identified in theearly stages ... -
First observation of the decay B+c → J/ψ K+
(Journal of High Energy Physics, 2013, Vol. 2013, No.9 (Setembre), 2013-09-13)The decay B+c→J/ψK+ is observed for the first time using a data sample, corresponding to an integrated luminosity of 1.0 fb−1, collected by the LHCb experiment in pp collisions at a centre-of-mass energy ... -
Determination of the branching fractions of B 0S → D ∓S K ∓ and B 0 → D −S K +
(Journal of High Energy Physics, 2015, Vol. 2015, No.19 (Abril), 2015-04-07) -
Observation of the Decay B+c → B0s π+
(Physical Review Letters , 2013, Vol. 111, No.18 (Novembre), 2013-11-01)The result of a search for the decay B+c→B0sπ+ is presented, using the B0s→D−sπ+ and B0s→J/ψϕ channels. The analysis is based on a data sample of pp collisions collected with the LHCb detector, corresponding ... -
Measurement of polarization amplitudes and CP asymmetries in B 0 → ϕK *(892)0
(Journal of High Energy Physics, 2014, Vol. 2014, No.5 (Maig), 2014-05-16)An angular analysis of the decay B 0 → ϕK *(892)0 is reported based on a pp collision data sample, corresponding to an integrated luminosity of 1.0 fb−1, collected at a centre-of-mass energy of s√ = 7 ... -
Measurement of the CKM angle γ using B ± → DK ± with D → K 0 S π + π −, K 0 S K + K − decays
(Journal of High Energy Physics, 2014, Vol. 2014, No.10 (Octubre), 2014-10-16)A binned Dalitz plot analysis of B ± → DK ± decays, with D→K0Sπ+π− and D→K0SK+K−, is performed to measure the CP-violating observables x ± and y ±, which are sensitive to the Cabibbo-Kobayashi-Maskawa ... -
A model-independent Dalitz plot analysis of B±→DK± with D→K0Sh+h− (h=π,K) decays and constraints on the CKM angle γ
(Physics Letters B , 2015, Vol. 718, No. 1 (Novembre), 2012-11-15)A binned Dalitz plot analysis of B± → DK± decays, with D → K0 Sπ+π− and D → K0 S K+K−, is performed to measure the CP-violating observables x± and y± which are sensitive to the CKM angle γ . The analysis ... -
Study of the rare B0s and B0 decays into the π+ π− μ+ μ− final state
(Physics Letters B , 2015, Vol. 743 (Abril), 2015-04-09)A search for the rare decays B0s→π+π−μ+μ−and B0→π+π−μ+μ−is performed in a data set corresponding to an integrated luminosity of 3.0fb−1collected by the LHCb detector in proton–proton collisions at ... -
Observation of the decay B0s → ψ(2S) K+ π−
(Physics Letters B , 2015, Vol. 747, (Juliol), 2015-07-30)The decay B-0s → ψ(2S)K+π- is observed using a data set corresponding to an integrated luminosity of 3.0fb-1 collected by the LHCb experiment in pp collisions at centre-of-mass energies of 7 and 8 TeV. ... -
Determination of γ and −2βs from charmless two-body decays of beauty mesons
(Physics Letters B , 2015, Vol. 741 (Febrer), 2015-02-04)Using the latest LHCb measurements of time-dependent CP violation in the B-s(0) -> K+K- decay, a U-spin relation between the decay amplitudes of B-s(0) -> K+K- and B-0 -> p(+)p(-) decay processes allows ... -
Measurement of the B 0 s → ϕϕ branching fraction and search for the decay B 0 → ϕϕ
(Journal of High Energy Physics, 2015, Vol. 2015, No.8 (Octubre), 2015-10-08)Using a dataset corresponding to an integrated luminosity of 3.0 fb−1 collected in pp collisions at centre-of-mass energies of 7 and 8 TeV, the B 0 s → ϕϕ branching fraction is measured to be B(B0s→ϕ ... -
Measurement of the CP-violating phase β in B0 → J/ψ π+ π− decays and límits on penguin effects
(Physics Letters B , 2015, Vol. 742, (Març), 2015-03-06)Time-dependent CPviolation is measured in the (—)B0→J/ψπ+π−channel for each π+π−resonant final state using data collected with an integrated luminosity of 3.0fb−1in ppcollisions using the LHCb detector. ...