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Author (up) Aiola, S.; Amhis, Y.; Billoir, P.; Jashal, B.K.; Henry, L.; Oyanguren, A.; Marin Benito, C.; Polci, F.; Quagliani, R.; Schiller, M.; Wang, M.
Title Hybrid seeding: A standalone track reconstruction algorithm for scintillating fibre tracker at LHCb Type Journal Article
Year 2021 Publication Computer Physics Communications Abbreviated Journal Comput. Phys. Commun.
Volume 260 Issue Pages 107713 - 5pp
Keywords Track reconstruction; Pattern Recognition; LHCb
Abstract We describe the Hybrid seeding, a stand-alone pattern recognition algorithm aiming at finding charged particle trajectories for the LHCb upgrade. A significant improvement to the charged particle reconstruction efficiency is accomplished by exploiting the knowledge of the LHCb magnetic field and the position of energy deposits in the scintillating fibre tracker detector. Moreover, we achieve a low fake rate and a small contribution to the overall timing budget of the LHCb real-time data processing.
Address [Billoir, P.; Polci, F.; Quagliani, R.] Sorbonne Univ, Paris Diderot Sorbonne Paris Cite, LPNHE, CNRS IN2P3, Paris, France, Email: louis.henry@cern.ch;
Corporate Author Thesis
Publisher Elsevier Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0010-4655 ISBN Medium
Area Expedition Conference
Notes WOS:000608243400007 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 4685
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Author (up) Aiola, S.; Bandiera, L.; Cavoto, G.; De Benedetti, F.; Fu, J.; Guidi, V.; Henry, L.; Marangotto, D.; Martinez-Vidal, F.; Mascagna, V.; Mazorra de Cos, J.; Mazzolari, A.; Merli, A.; Neri, N.; Prest, M.; Romagnoni, M.; Ruiz Vidal, J.; Soldani, M.; Sytov, A.; Tikhomirov, V.; Vallazza, E.
Title Progress towards the first measurement of charm baryon dipole moments Type Journal Article
Year 2021 Publication Physical Review D Abbreviated Journal Phys. Rev. D
Volume 103 Issue 7 Pages 072003 - 15pp
Keywords
Abstract Electromagnetic dipole moments of short-lived particles are sensitive to physics within and beyond the Standard Model of particle physics but have not been accessible experimentally to date. To perform such measurements it has been proposed to exploit the spin precession of channeled particles in bent crystals at the LHC. Progress that enables the first measurement of charm baryon dipole moments is reported. In particular, the design and characterization on beam of silicon and germanium bent crystal prototypes, the optimization of the experimental setup, and advanced analysis techniques are discussed. Sensitivity studies show that first measurements of Lambda(+)(c) and Xi(+)(c) baryon dipole moments can he performed in two years of data taking with an experimental setup positioned upstream of the LHCb detector.
Address [Aiola, S.; De Benedetti, F.; Fu, J.; Henry, L.; Marangotto, D.; Merli, A.; Neri, N.] Ist Nazl Fis Nucl, Sez Milano, Milan, Italy
Corporate Author Thesis
Publisher Amer Physical Soc Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2470-0010 ISBN Medium
Area Expedition Conference
Notes WOS:000648575400001 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 4835
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Author (up) Bagli, E.; Bandiera, L.; Cavoto, G.; Guidi, V.; Henry, L.; Marangotto, D.; Martinez-Vidal, F.; Mazzolari, A.; Merli, A.; Neri, N.; Vidal, J.R.
Title Electromagnetic dipole moments of charged baryons with bent crystals at the LHC Type Journal Article
Year 2017 Publication European Physical Journal C Abbreviated Journal Eur. Phys. J. C
Volume 77 Issue 12 Pages 828 - 19pp
Keywords
Abstract We propose a unique program of measurements of electric and magnetic dipole moments of charm, beauty and strange charged baryons at the LHC, based on the phenomenon of spin precession of channeled particles in bent crystals. Studies of crystal channeling and spin precession of positively- and negatively-charged particles are presented, along with feasibility studies and expected sensitivities for the proposed experiment using a layout based on the LHCb detector.
Address [Bagli, E.; Bandiera, L.; Guidi, V.; Mazzolari, A.] INFN Sez Ferrara, Ferrara, Italy, Email: nicola.neri@mi.infn.it
Corporate Author Thesis
Publisher Springer Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1434-6044 ISBN Medium
Area Expedition Conference
Notes WOS:000417103300002 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 3394
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Author (up) Borsato, M. et al; Zurita, J.; Henry, L.; Jashal, B.K.; Oyanguren, A.
Title Unleashing the full power of LHCb to probe stealth new physics Type Journal Article
Year 2022 Publication Reports on Progress in Physics Abbreviated Journal Rep. Prog. Phys.
Volume 85 Issue 2 Pages 024201 - 45pp
Keywords LHCb; stealth physics; BSM physics; hidden sectors; long-lived particles; dark matter
Abstract In this paper, we describe the potential of the LHCb experiment to detect stealth physics. This refers to dynamics beyond the standard model that would elude searches that focus on energetic objects or precision measurements of known processes. Stealth signatures include long-lived particles and light resonances that are produced very rarely or together with overwhelming backgrounds. We will discuss why LHCb is equipped to discover this kind of physics at the Large Hadron Collider and provide examples of well-motivated theoretical models that can be probed with great detail at the experiment.
Address [Borsato, M.] Heidelberg Univ, Phys Inst, Heidelberg, Germany, Email: xabier.cid.vidal@cern.ch
Corporate Author Thesis
Publisher IOP Publishing Ltd Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0034-4885 ISBN Medium
Area Expedition Conference
Notes WOS:000762056700001 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 5151
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Author (up) Calefice, L.; Hennequin, A.; Henry, L.; Jashal, B.K.; Mendoza, D.; Oyanguren, A.; Sanderswood, I.; Sierra, C.V.; Zhuo, J.H.
Title Effect of the high-level trigger for detecting long-lived particles at LHCb Type Journal Article
Year 2022 Publication Frontiers in Big Data Abbreviated Journal Front. Big Data
Volume 5 Issue Pages 1008737 - 13pp
Keywords LHCb; trigger; real time analysis; long-lived particles; GPU; SciFi; beyond standard physics
Abstract Long-lived particles (LLPs) show up in many extensions of the Standard Model, but they are challenging to search for with current detectors, due to their very displaced vertices. This study evaluated the ability of the trigger algorithms used in the Large Hadron Collider beauty (LHCb) experiment to detect long-lived particles and attempted to adapt them to enhance the sensitivity of this experiment to undiscovered long-lived particles. A model with a Higgs portal to a dark sector is tested, and the sensitivity reach is discussed. In the LHCb tracking system, the farthest tracking station from the collision point is the scintillating fiber tracker, the SciFi detector. One of the challenges in the track reconstruction is to deal with the large amount of and combinatorics of hits in the LHCb detector. A dedicated algorithm has been developed to cope with the large data output. When fully implemented, this algorithm would greatly increase the available statistics for any long-lived particle search in the forward region and would additionally improve the sensitivity of analyses dealing with Standard Model particles of large lifetime, such as KS0 or Lambda (0) hadrons.
Address [Calefice, Lukas] Sorbonne Univ, Lab Phys Nucl & Hautes Energies, CNRS, IN2P3, Paris, France, Email: arantza.oyanguren@ific.uv.es
Corporate Author Thesis
Publisher Frontiers Media Sa Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes WOS:000889005000001 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 5423
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