CERN Accelerating science

LHCb Conference Proceedings

Ostatnio dodane:
2020-06-25
16:16
Crystal Fibers for the LHCb Calorimeter Upgrade / Martinazzoli, Loris (Universita & INFN, Milano-Bicocca (IT))
The Large Hadron Collider beauty (LHCb) experiment is one of the four main particle detectors located at the Large Hadron Collider. After the high-luminosity upgrade of the accelerator, the expected radiation dose faced by the LHCb electromagnetic calorimeter will reach peak values of 1 MGy in the centermost part, an amount not tolerable by the currently employed Shashlik technology, which demands a novel radiation hard design. [...]
LHCb-PROC-2020-004; CERN-LHCb-PROC-2020-004.- Geneva : CERN, 2020 - 6. - Published in : IEEE Trans. Nucl. Sci. 67 (2020) 1003 Fulltext: PDF;
In : 15th International Conference on Inorganic Scintillators and Their Applications, Sendai, Japan, 29 Sep - 04 Oct 2019

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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
The Upgrade of LHCb VELO / Kopciewicz, Pawel (AGH University of Science and Technology (PL))
in preparation
LHCb-PROC-2020-001; CERN-LHCb-PROC-2020-001.- Geneva : CERN, 2020
In : 15th Topical Seminar on Innovative Particle and Radiation Detectors, Siena, Italy, 14 - 17 Oct 2019

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2019-12-19
17:12
Search for new decays of the $\Lambda_b^0$ baryon at the LHCb experiment. / Pereima, Dmitrii (NRC "Kurchatov Institute" (ITEP) (RU))
High statistics collected by the LHCb experiment between 2011 and 2018 in proton-proton (pp) collisions at the Large Hadron Colllider (LHC), jointly with the large cross-section of $b\bar{b}$ pairs production provides unique possibility for the search and study new decays of beauty hadrons. The results of search for new decays of the $\Lambda_b^0$ baryons are presented. [...]
LHCb-PROC-2019-013; CERN-LHCb-PROC-2019-013.- 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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2019-12-17
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
Gaussino - a Gaudi-Based Core Simulation Framework / Siddi, Benedetto Gianluca (Universita e INFN, Ferrara (IT)) ; Muller, Dominik (CERN)
The increase in luminosity foreseen in the future years of operation of the Large Hadron Collider (LHC) creates new challenges in computing efficiency for all participating experiment. To cope with these challenges and in preparation for the third running period of the LHC, the LHCb collab- oration currently overhauls its software framework to better utilise modern computing architectures. [...]
LHCb-PROC-2019-010; CERN-LHCb-PROC-2019-010.- Geneva : CERN, 2019 - 4. Fulltext: PDF;
In : 2019 IEEE Nuclear Science Symposium (NSS) and Medical Imaging Conference (MIC), Manchester, United Kingdom, 26 Oct - 2 Nov 2019

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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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