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001-es BibID:	BIBFORM113139
035-os BibID:	(cikkazonosító)168103 (WoS)001020805400001 (Scopus)85147540993
Első szerző:	Abbiendi, G.
Cím:	The Analytical Method algorithm for trigger primitives generation at the LHC Drift Tubes detector / G. Abbiendi, J. Alcaraz Maestre, A. Álvarez Fernández, B. Ujvari, G. Zilizi
Dátum:	2023
ISSN:	0168-9002
Megjegyzések:	The Compact Muon Solenoid (CMS) experiment prepares its Phase-2 upgrade for the high-luminosity era of the LHC operation (HL-LHC). Due to the increase of occupancy, trigger latency and rates, the full electronics of the CMS Drift Tube (DT) chambers will need to be replaced. In the new design, the time bin for the digitization of the chamber signals will be of around 1 ns, and the totality of the signals will be forwarded asynchronously to the service cavern at full resolution. The new backend system will be in charge of building the trigger primitives of each chamber. These trigger primitives contain the information at chamber level about the muon candidates position, direction, and collision time, and are used as input in the L1 CMS trigger. The added functionalities will improve the robustness of the system against ageing. An algorithm based on analytical solutions for reconstructing the DT trigger primitives, called Analytical Method, has been implemented both as a software C++ emulator and in firmware. Its performance has been estimated using the software emulator with simulated and real data samples, and through hardware implementation tests. Measured efficiencies are 96 to 98% for all qualities and time and spatial resolutions are close to the ultimate performance of the DT chambers. A prototype chain of the HL-LHC electronics using the Analytical Method for trigger primitive generation has been installed during Long Shutdown 2 of the LHC and operated in CMS cosmic data taking campaigns in 2020 and 2021. Results from this validation step, the so-called Slice Test, are presented.
Tárgyszavak:	Természettudományok Fizikai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	Nuclear Instruments & Methods In Physics Research Section A-Accelerators Spectrometers Detectors And Associated Equipment. - 1049 (2023), p. 1-8. -
További szerzők:	Alcaraz Maestre, J. Álvarez Fernández, A. Ujvári Balázs (1977-) (fizikus) Zilizi Gyula (1965-) (fizikus)
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM023354
035-os BibID:	(WoS)000272803600006 (Scopus)71249095579
Első szerző:	The OPAL Collaboration
Cím:	Sigma-antihyperon correlations in Z0 decay and investigation of the baryon production mechanism / The OPAL Collaboration, G. Abbiendi [et al.], [incl. Z. Trócsányi, J. Pálinkás, B. Ujvári, Gy. Zilizi, Zs. Szabó]
Dátum:	2009
ISSN:	1434-6044
Megjegyzések:	Data collected around sqrt{s}=91 GeV by the OPAL experiment at the LEP e+e- collider are used to study the mechanism of baryon formation. As the signature, the fraction of Sigma-hyperons whose baryon number is compensated by the production of a Sigma-, Lambda or Xi- antihyperon is determined. The method relies entirely on quantum number correlations of the baryons, and not rapidity correlations, making it more model independent than previous studies. The diquark fragmentation model without the popcorn mechanism is strongly disfavored with a significance of 3.8 standard deviations including systematic uncertainties. It is shown that previous studies of the popcorn mechanism are not conclusive if parameter uncertainties are considered.
Tárgyszavak:	Természettudományok Fizikai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	European Physical Journal C. - 64 : 4 (2009), p. 609-625. -
További szerzők:	Abbiendi, G. Trócsányi Zoltán (1961-) (fizikus) Pálinkás József (1952-) (fizikus) Ujvári Balázs (1977-) (fizikus) Zilizi Gyula (1965-) (fizikus) Szabó Zsolt (1963-) (fizikus) Dienes Beatrix (1972-) (élettanász, molekuláris biológus) Horváth Dezső (1966-) (kémikus) Krasznahorkay Attila (Jr.) Vértesi Róbert
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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