2020-02-28
10:43 |
A new scheduling algorithm for the LHCb upgrade trigger application
/ Govorkova, Katya (Nikhef National institute for subatomic physics (NL)) ; Hasse, Christoph (Technische Universitaet Dortmund (DE)) ; Matev, Rosen (CERN) ; Nolte, Niklas Stefan (Technische Universitaet Dortmund (DE)) ; Ponce, Sebastien (CERN) ; Raven, Gerhard (Nikhef National institute for subatomic physics (NL)) ; Stahl, Sascha (CERN)
During Run 3 of the LHC the LHCb detector will process a 30 MHz event rate with a full detector readout followed by a software trigger. To deal with the increased computational requirements, the software framework is reviewed and optimized on a large scale. [...]
LHCb-PROC-2020-003; CERN-LHCb-PROC-2020-003.-
Geneva : CERN, 2020 - 5.
Fulltext: PDF;
In : 19th International Workshop on Advanced Computing and Analysis Techniques in Physics Research, Saas Fee, Switzerland, 11 - 15 Mar 2019
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2020-01-31
11:35 |
$\phi_s$ status and prospects at LHCb
/ Govorkova, Katya (Nikhef National institute for subatomic physics (NL))
Recent measurements of the time-dependent CP violation by the LHCb experiment are presented. The decays of $B_s$ mesons to $J/\psi K^+ K^-$ and $J/\psi \pi^+ \pi^-$ final states are used to measure the CP-violating phase $\phi_{s}$ in tree-dominated transitions, while $B_s^0\to(K^+ \pi^-) (K^- \pi^+)$ and $B_s^0\to \phi \phi$ decay modes are used to measure the CP violating phases $\phi_{s}^{sd\overline{d}}$ and $\phi_{s}^{ss\overline{s}}$, which arise in penguin-dominated decays. [...]
LHCb-PROC-2020-002; CERN-LHCb-PROC-2020-002; LHCb-TALK-2019-349.-
Geneva : CERN, 2020 - mult.p.
Fulltext: PDF;
In : 18th International Conference on B-Physics at Frontier Machines, Ljubljana, Slovenia, 30 Sep - 4 Oct 2019
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2020-01-28
10:07 |
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2019-12-19
17:12 |
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2019-12-17
17:23 |
B baryon decays at LHCb
/ Matiunin, Slava (NRC "Kurchatov Institute" (ITEP) (RU))
Large statistics collected by the LHCb experiment allows to study heavy baryons produced in proton-proton collisions at the Large Hadron Collider (LHC). Charmed and beauty hadrons produced in $pp$ collisions are studied to identify new states, confirming or disproving those recently claimed, and establishing their quantum numbers [...]
LHCb-PROC-2019-012; CERN-LHCb-PROC-2019-012.-
Geneva : CERN, 2019 - 6.
Fulltext: PDF;
In : HSQCD 2018, Gatchina, Russia, 6 - 10 Aug 2018
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2019-12-17
15:52 |
Recent LHCb results on charm and charmonium spectroscopy
/ Matiunin, Slava (NRC "Kurchatov Institute" (ITEP) (RU))
The recent results on charm and charmonium spectroscopy obtained by the LHCb collaboration are reviewed. In particular, observation of new charmonium state in the decay modes $X(3842) \to D^0 \overline D{^{0}}$ and $\mathrm{X(3842)\rightarrow D^+ D^-}$ evidence for $\mathrm {\eta_c(1S)\pi^-}$ resonance in $\mathrm {B^0\rightarrow\eta_c(1S)K^+\pi^-}$ decay and observation of three narrow $\mathrm{P_c^+}$ pentaquark candidates decaying to $\mathrm{J/\psi p}$ are obtained [...]
LHCb-PROC-2019-011; CERN-LHCb-PROC-2019-011.-
Geneva : CERN, 2019 - 8.
Fulltext: PDF;
In : The XXIV International Workshop : High Energy Physics and Quantum Field Theory , Sochi, Russia, 22 - 29 Sep 2019
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2019-12-16
16:27 |
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2019-10-29
16:25 |
TWO-PARTICLE CORRELATIONS AT THE LHCb∗
/ Kucharczyk, Marcin (Polish Academy of Sciences (PL))
Due to its unique pseudorapidity coverage (2 < η < 5) and excellent performance, the LHCb detector allows the study of various aspects of par- ticle correlations at large rapidities and low transverse momenta. Selected results are summarized, such as the first measurement of the Bose–Einstein correlations of the same-sign pions and kinematic correlations for pairs of beauty hadrons performed using large samples of proton–proton collision data accumulated with the LHCb detector at $\sqrt{s}$ = 7 and 8 TeV, together with the long-range correlations on the near side measured in proton–lead and lead–proton collisions at a nucleon–nucleon centre-of-mass energy of $\sqrt{s}$ = 5 TeV. [...]
LHCb-PROC-2019-009; CERN-LHCb-PROC-2019-009.-
Geneva : CERN, 2019 - 6.
Fulltext: PDF;
In : Diffraction and Low-x 2018, Reggio Calabria, Italy, 26 Aug - 1 Sep 2018
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2019-09-04
12:06 |
Soft QCD and Central Exclusive Production at LHCb
/ Kucharczyk, Marcin (Cracow, INP)
/LHCb Collaboration
The LHCb detector, owing to its unique acceptance coverage $(2 < \eta < 5)$ and a precise track and vertex reconstruction, is a universal tool allowing the study of various aspects of electroweak and QCD processes, such as particle correlations or Central Exclusive Production. The recent results on the measurement of the inelastic cross section at $ \sqrt s = 13 \ \rm{TeV}$ as well as the Bose-Einstein correlations of same-sign pions and kinematic correlations for pairs of beauty hadrons performed using large samples of proton-proton collision data accumulated with the LHCb detector at $\sqrt s = 7\ \rm{and} \ 8 \ \rm{TeV}$, are summarized in the present proceedings, together with the studies of Central Exclusive Production at $ \sqrt s = 13 \ \rm{TeV}$ exploiting new forward shower counters installed upstream and downstream of the LHCb detector. [...]
LHCb-PROC-2019-008; CERN-LHCb-PROC-2019-008.-
Geneva : CERN, 2019 - 6.
- Published in : PoS DIS2019 (2019) 057
Fulltext: PDF;
In : The XXVII International Workshop on Deep Inelastic Scattering and Related Subjects, Turin, Italy, 8 - 12 Apr 2019, pp.57
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2019-08-15
17:36 |
Tests of Lepton Flavour Universality at LHCb
/ Mueller, Katharina (Universitaet Zuerich (CH))
In the Standard Model of particle physics the three charged leptons are identical copies of each other, apart from mass differences, and the electroweak coupling of the gauge bosons to leptons is independent of the lepton flavour. This prediction is called lepton flavour universality (LFU) and is well tested. [...]
LHCb-PROC-2019-006; CERN-LHCb-PROC-2019-006.-
Geneva : CERN, 2019 - mult.p.
In : Kruger2018, Hazyview, South Africa, 3 - 7 Dec 2018
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