Direct observations of the decay of beauty particles into charm particles

Albanèse, J.P.; Alpe, V.; Aoki, S.; Arnold, R.; Baroni, G.; Barth, M.; Bartley, J. H.; Bertrand, Daniel; Bertrand-Coremans, G.; Bisi, V.; Breslin, A. C.; Carboni, G.; Chesi, E.; Chiba, Kazuyoshi; Cook, Geoffrey; Coupland, M.; Crosetti, G.; Davis, D.H.; Dell'Uomo, S.; Liberto, S. Di; Bonnelly, W.; Duff, B.G.; Esten, M.J.; Gamba, D.; Gerke, Ch.; Hazama, M.; Heymann, F.F.; Hoshino, K.; Imrie, D. C.; Isokane, Y.; Kazuno, M.; Kodama, Yasunobu; Lush, G.J.; Maeda, Y.; Marzari‐Chiesa, A.; Mazzoni, M. A.; Meddi, F.; Miyanishi, M.; Montwill, A.; Muciaccia, M. T.; Musset, P.; Nakamura, Mitsuhiro; Nakazawa, Kimitaka; Natali, S.; Niu, K.; Niwa, K.; Nuzzo, S.; Ohashi, M.; Piuz, F.; Poulard, G.; Ramello, L.; Riccati, L.; Romano, G.; Roosen, R.; Rosa, G.; Ruggieri, F.; Sato, Y.; Sasaki, Hirokazu; Sgarbi, C.; Shibuya, H.; Simone, S.; Sletten, H.; Tasaka, S.; Tesuka, I.; Tomita, Yasuhiro; Tovee, D.N.; Trent, P. T.; Tsuneoka, Y.; Ushida, N.; Yamakawa, Osamu; Yanagisawa, Y.

doi:10.1016/0370-2693(85)91389-9

Cited by 57 publications

(9 citation statements)

References 15 publications

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“…Emulsion detectors have been successfully employed by several neutrino experiments such as CHORUS [83], DONuT [40], and OPERA [45,[84][85][86]. The same technique has also been used in hadron experiments, e.g., WA75 [87] and E653 [88] for beauty particle studies, and recently DsTau [89,90] for charmed particle measurements.…”

Section: Detector Designmentioning

confidence: 99%

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Detecting and studying high-energy collider neutrinos with FASER at the LHC

et al. 2020

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Neutrinos are copiously produced at particle colliders, but no collider neutrino has ever been detected. Colliders produce both neutrinos and anti-neutrinos of all flavors at very high energies, and they are therefore highly complementary to those from other sources. FASER, the Forward Search Experiment at the LHC, is ideally located to provide the first detection and study of collider neutrinos. We investigate the prospects for neutrino studies with FASERν, a proposed component of FASER, consisting of emulsion films B. Denton and Callum Wilkinson: FASER Associate.

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Section: Detector Designmentioning

confidence: 99%

“…12. Such a hybrid emulsion/counter detector was successfully used in detecting neutrino interactions in a series of experiments [40,83,84,87,88]. The FASER spectrometer can provide charge information and is also useful to improve the energy resolution.…”

Section: Global Reconstruction With the Faser Detectormentioning

confidence: 99%

Detecting and studying high-energy collider neutrinos with FASER at the LHC

et al. 2020

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“…In 1985, the fixed-target WA75 hybrid experiment at the CERN SPS [10] observed in emulsions the first partially reconstructed bb pair produced by an extracted pion beam of 350 GeV/c, confirming that the production cross section at such low energies was very small. To circumvent this problem, simple experiments were proposed [11] for the CERN SPS and for the planned UNK machine [12] at Serpukhov, with a brute-force approach based on a high-intensity extracted beam and a minimalist detector designed to reconstruct the B 0 → J/ψK 0 S decay and to provide flavour tagging ( Fig.…”

Section: B Physics At the End Of The Xxth Centurymentioning

confidence: 86%

The history of LHCb

Belyaev

Carboni

Harnew

et al. 2021

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In this paper, we describe the history of the LHCb experiment over the last three decades, and its remarkable successes and achievements. LHCb was conceived primarily as a $${b} $$ b -physics experiment, dedicated to $$CP$$ CP violation studies and measurements of very rare $${{b}} $$ b decays; however, the tremendous potential for $${c} $$ c -physics was also clear. At first data taking, the versatility of the experiment as a general-purpose detector in the forward region also became evident, with measurements achievable such as electroweak physics, jets and new particle searches in open states. These were facilitated by the excellent capability of the detector to identify muons and to reconstruct decay vertices close to the primary $${{p}} {{p}} $$ pp interaction region. By the end of the LHC Run 2 in 2018, before the accelerator paused for its second long shut down, LHCb had measured the CKM quark mixing matrix elements and $$CP$$ CP violation parameters to world-leading precision in the heavy-quark systems. The experiment had also measured many rare decays of $${b} $$ b and $${c} $$ c quark mesons and baryons to below their Standard Model expectations, some down to branching ratios of order 10$$^{-9}$$ - 9 . In addition, world knowledge of $${{b}} $$ b and $${{c}} $$ c spectroscopy had improved significantly through discoveries of many new resonances already anticipated in the quark model, and also adding new exotic four and five quark states. The paper describes the evolution of the LHCb detector, from conception to its operation at the present time. The authors’ subjective summary of the experiment’s important contributions is then presented, demonstrating the wide domain of successful physics measurements that have been achieved over the years.

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“…Emulsion technology, pure nuclear emulsion and Emulsion Cloud Chamber (ECC) targets, has already demonstrated that it is a superb technique for the study of decay topologies [425][426][427][428][429][430][431]. A discussion of the performance that has been achieved in previous emulsion-based experiments is beyond the scope of this section.…”

Section: Emulsion Detectormentioning

confidence: 99%