b quark; B mesons; heavy flavour; CP violation; CKM matrix; New Physics; LHCb; LHC; B physics; Standard Model
Aaij R. et al., LHCb collaboration (2017), Measurement of the B+- production cross-section in pp collisions at sqrt(s)=7 TeV, in
JHEP, 1204, 093--.
Aaij R. et al., LHCb collaboration (2012), Absolute luminosity measurements with the LHCb detector at the LHC, in
JINST, 7, P01010--.
Aaij R. et al., LHCb collaboration (2012), Evidence for CP violation in time-integrated D0 → h−h+ decay rates, in
Phys.Lett., 108, 111602--.
Aaij R. et al., LHCb collaboration (2012), First observation of the decay Bs0 → K∗0K∗0, in
Phys.Lett., B709, 50--.
Aaij R. et al., LHCb collaboration (2012), First observation of the decays B0 → D+K−π+π− and B− → D0K−π+π−, in
Phys.Rev.Lett. , 108, 161801--.
Aaij R. et al., LHCb collaboration (2012), Measurement of b hadron production fractions in 7 TeV pp collisions, in
Phys.Rev., D85, 032008--.
Aaij R. et al., LHCb collaboration (2012), Measurement of b-hadron masses, in
Phys.Lett., B708, 241--.
Aaij R. et al., LHCb collaboration (2012), Measurement of the B^0_s - \bar{B}^0_s oscillation frequency Delta m_s in B^0_s -> D_s^-(3) pi decays, in
Phys.Lett., B709, 177-184.
Aaij R. et al., LHCb collaboration (2012), Measurement of the CP violating phase φs in B0s → J/ψf0(980), in
Phys.Lett., B707, 497-505.
Aaij R. et al., LHCb collaboration (2012), Measurement of the CP-violating phase φs in the decay Bs0 → J/ψ φ, in
Phys.Rev.Lett., 108, 101803--.
Aaij R. et al., LHCb collaboration (2012), Measurement of the effective Bs0 → K+K− lifetime, in
Phys.Lett., B707, 349-356.
Aaij R. et al., LHCb collaboration (2012), Observation of $J/ψ$ pair production in pp collisions at $\sqrt{s}=7 TeV$, in
Phys.Lett., B707, 52-59.
Aaij R. et al., LHCb collaboration (2012), Observation of B0s → J/ψf2′(1525) in J/ψK+K− final states, in
Phys.Rev.Lett., 108, 151801--.
Aaij R. et al., LHCb collaboration (2012), Search for the lepton number violating decays B+ → π−μ+μ+ and B+ → K−μ+μ+, in
Phys.Rev.Lett., 108, 101601--.
Aaij R. et al., LHCb collaboration (2012), Search for the rare decays Bs0 → μ+μ− and B0 → μ+μ−, in
Phys.Lett., B708, 55--.
Aaij R. et al., LHCb collaboration (2011), Determination of fs/fd for 7 TeV pp collisions and a measurement of the branching fraction of the decay B0 → D−K+, in
Phys.Rev.Lett., 107, 211801--.
Aaij R. et al., LHCb collaboration (2011), First observation of B0 → D∗+Xμ−ν decays, in
Phys.Lett., B698, 14-20.
Aaij R. et al., LHCb collaboration (2011), First observation of Bs0 → J/ψf0(980) decays, in
Phys.Lett. , B698, 115-122.
Aaij R. et al., LHCb collaboration (2011), First observation of the decay B0s → D0K∗0 and a measurement of the ratio of branching fractions 0 0 ∗0 B(Bs→D K ) B(B0→D0ρ0), in
Phys.Lett., B706, 32-39.
Aaij R. et al., LHCb collaboration (2011), Measurement of J/ψ√production in ppcollisionsat s=7TeV, in
Eur.Phys.J , C71, 1645--.
Aaij R. et al., LHCb collaboration (2011), Measurement of sigma(pp -> b anti-b X) at \sqrt(s)=7 TeV in the forward region, in
Phys.Lett. , B694, 209-216.
Aaij R. et al., LHCb collaboration (2011), Measurement of the inclusive φ cross-section in pp collisions at √s = 7 TeV, in
Phys.Lett., B703, 267-273.
Aaij R. et al., LHCb collaboration (2011), Measurement of V 0 production ratios in pp collisions at √s = 0.9 and 7 TeV, in
JHEP , 08, 34--.
Aaij R. et al., LHCb collaboration (2011), Measurements of the Branching fractions for B(s) → D(s)πππ and Λ 0b → Λ +c π π π, in
Phys.Rev., D84, 092001--.
Aaij R. et al., LHCb collaboration (2011), Search for the rare decays Bs0 → μ+μ− and B0 → μ+μ−, in
Phys.Lett., B699, 330-340.
Aaij R. et al., LHCb collaboration (2010), Prompt KS0 production in pp collisions at √s = 0.9 TeV, in
Phys.Lett.B693, B693, 69-80.
Aaij R. et al., LHCb collaboration, Determination of the sign of the decay width difference in the Bs0 system, in
To appear in Phys.Rev.Lett..
Aaij R. et al., LHCb collaboration, Differential branching fraction and angular analysis of the decay B0 → K∗0μ+μ−, in
To appear in Phys.Rev.Lett..
Aaij R. et al., LHCb collaboration, First evidence of direct CP violation in charmless two-body decays of Bs0 mesons, in
To appear in Phys.Rev.Lett..
Aaij R. et al., LHCb collaboration, First observation of the decay Bc+ → J/ψπ+π−π+, in
Submitted to Phys.Rev.Lett..
Aaij R. et al., LHCb collaboration, Measurement of charged particle multiplicities in pp collisions at √s = 7 TeV in the forward region, in
To appear in Eur.Phys.J. C.
Aaij R. et al., LHCb collaboration, Measurement of mixing and CP violation parameters in two-body charm decays, in
Submitted to JHEP.
Aaij R. et al., LHCb collaboration, Measurement of the cross-section ratio $σ(χ_{c2})/σ(χ_{c1})$ for prompt $χ_c$ production at $\sqrt{s}=7$ TeV, in
Submitted to Phys.Lett. B.
Aaij R. et al., LHCb collaboration, Measurement of the ratio of branching fractions B(B0 → K∗0γ)/B(Bs0 → φγ), in
Submitted to Phys.Rev. D.
Aaij R. et al., LHCb collaboration, Measurement of Υ production in pp collisions at √s = 7 TeV, in
Submitted to Eur.Phys.J. C.
Aaji R. et al., LHCb collaboration, Measurements of the branching fractions and CP asymmetries of B+ to J/psi pi+ and B+ to psi(2S) pi+ decays, in
To appear in Phys.Rev. D.
Aaij R. et al., LHCb collaboration, Observation of CP violation in B± → DK± decays, in
Submitted to Phys.Lett. B.
Aaij R. et al., LHCb collaboration, Observation of X(3872) production in pp collisions at sqrt(s)= 7 TeV, in
To appear in Eur.Phys.J. C.
Aaij R. et al., LHCb collaboration, Opposite-side flavour tagging of B mesons at the LHCb experiment, in
Submitted to Eur.Phys.J. C.
Aaij R. et al., LHCb collaboration, Search for CP violation in D+ → K−K+π+ decays, in
Phys.Rev., D84, 092001--.
Aaij R. et al., LHCb collaboration, Search for the X(4140) state in B+ → J/ψφK+ decays, in
To appear in Phys.Rev. D.
Aaij R. et al., LHCb collaboration, Searches for Majorana neutrinos in B− decays, in
To appear in Phys.Rev. D.
Aaij R. et al., LHCb collaboration, Strong constraints on the rare decays Bs0 → μ+μ− and B0 → μ+μ−, in
To appear in Phys.Rev.Lett. .
LHCb is an experiment designed for precise measurements of CP violation and rare B decays, exploiting the very large large bbbar production cross section at the LHC collider at CERN. LHCb's main physics aims are to elucidate the flavour structure in the quark sector, and hopefully observe signals from New Physics.The LHCb detector is ready to record LHC's first collisions expected by the end of 2009, and deploy its full physics program as soon as the LHC reaches a luminosity of 2 x 10^32 cm-2 s-1. The LHCb collaboration is studying the possibility to upgrade the detector after an integrated luminosity of about 10 fb-1 in view of running at ~ 10 times higher instantaneous luminosities. Our particle physics group in Lausanne has worked on LHCb since the beginning of the project in 1995 and plays important roles in the leadership of the experiment. We have fulfilled our detector construction responsibilities, which included the development, construction and installation of the so-called TELL1 common readout boards, of the transmission electronics for the silicon vertex detector VELO, and of the silicon Inner Tracker stations, in collaboration with other institutes (in particular the University of Zurich). Since spring 2008 we have commissioned all this equipment without and with real particles going through the detector (produced by cosmic rays or beam injected in the LHC). By the end of March 2010 we anticipate that the commissioning phase with beam-gas and beam-beam collisions will be completed. In addition, we have contributed for several years to the development of trigger algorithms and general software, to the optimization of the physics performance, and to the preparation for physics analysis. In view of a possible future involvement in the LHCb upgrade, we also recently undertook new R&D activities for an upgraded TELL1 board and in the area of fibre tracking.Our objectives for the forthcoming 2-year funding period 2010-2012 are the following:- Operate, monitor, maintain and (when needed) improve the hardware devices under our responsibility to keep them fully operational for physics data-taking.- Contribute in a significant way to the first data analysis and physics measurements with the data taken during the 2010 and 2011 runs.- Design a replacement for the Inner Tracker detector boxes based on the fibre-tracking technology, and start the corresponding construction. - In view of a possible upgrade of LHCb, coordinate the development of subsequent versions of the TELL1 board, in particular the TELL10 board based on 10-Gigabit link technology.