Hybrid emulsion spectrometer for the detection of hadronically produced heavy flavor states

Kodama, K.; Ushida, N.; Lander, R.; Mokhtarani, A.; Paolone, V.; Wilcox, J.; Yager, P. M.; Edelstein, R. M.; Freyberger, A.; Gibaut, D.; Lipton, R.; Nichols, W. R.; Potter, Douglas M.; Russ, James; Zhang, Y.; Jang, H. I.; Kim, J. Y.; Pac, M. Y.; Baller, B.; Stefanski, R. J.; Nakazawa, Kimitaka; Tasaka, S.; Choi, Yu-Seong; Chung, K.; Kim, D. C.; Park, I. G.; Song, J.; Yoon, C. S.; Chikawa, M.; Abe, T.; Fujii, T.; Fujioka, G.; Fujiwara, K.; Fukushima, Hiroshi; Hara, T.; Takahashi, Yoshiki; Taruma, K.; Tsuzuki, Y.; Yokoyama, Chiaki; Chang, S. D.; Cheon, B. G.; Cho, J. H.; Kang, J. S.; Kim, C. O.; Kim, K. Y.; Kim, T. Y.; Lee, J. C.; Lee, S. B.; Lim, G. Y.; Lim, I. T.; Nam, S.; Shin, T.; Sim, K. S.; Woo, Jong-Kwan; Isokane, Y.; Tsuneoka, Y.; Aoki, S.; Gauthier, A.; Hoshino, K.; Kitamura, Hirokazu; Kobayashi, Mie; Miyanishi, M.; Nakamura, K.; Nakamura, Mitsuhiro; Nakamura, Yuya; Nakanishi, S.; Niu, K.; Niwa, K.; Tajima, H.; Dunlea, J.; Frederiksen, S. G.; Kuramata, S.; Lundberg, B.; Oleynik, G.; Reay, N. W.; Reibel, K.; Rush, C.; Sidwell, R. A.; Stanton, N. R.; Moriyama, K.; Shibata, Hiroyuki; Jaffery, T.S.; Kalbfleisch, G.; Skubic, P.; Snow, J.; Willis, S.; Yuan, W. Y.; Kusumoto, O.; Okusawa, T.; Teranaka, M.; Tominaga, T.; Watanabe, Toru; Yamato, J.; Okabe, H.; Yokota, J.; Kazuno, M.; Minakawa, F.; Niu, E.; Ono, Shunsuke; Shibuya, H.; Watanabe, Shuji; Sato, Y.; Tezuka, I.; Bahk, S. Y.; Kim, S. K.

doi:10.1016/0168-9002(90)90255-5

Cited by 32 publications

(4 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The stepping motors drive the stage under the control of a computer with a program written in C# language. Stepping motors offer more precise control over stage position and speed compared to the DC motors that were used to control the TM in previous experiments [14,15]. We have implemented additional mechanical support to hold the emulsion modules.…”

Section: The Target Mover and The Real-time Speed Control Systemmentioning

confidence: 99%

“…As the proton beam spot is small, the target mover (TM) system (as shown in figure 1) is utilized to uniformly irradiate the whole surface of the emulsion detectors. The similar movable stages were used in the past experiments [14][15][16]. The small scale TM prototype was used during the test runs in 2016 and 2017 then in the pilot run of 2018 [11].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Development of proton beam irradiation system for the NA65/DsTau experiment

Aoki,

Ariga,

Ariga

et al. 2023

J. Inst.

View full text Add to dashboard Cite

Tau neutrino is the least studied lepton of the Standard Model (SM). The NA65/DsTau experiment targets to investigate Ds , the parent particle of the ντ , using the nuclear emulsion-based detector and to decrease the systematic uncertainty of ντ flux prediction from over 50 % to 10 % for future beam dump experiments. In the experiment, the emulsion detectors are exposed to the CERN SPS 400 GeV proton beam. To provide optimal conditions for the reconstruction of interactions, the protons are required to be uniformly distributed over the detector's surface with an average density of 105 cm-2 and the fluctuation of less than 10%. To address this issue, we developed a new proton irradiation system called the target mover. The new target mover provided irradiation with a proton density of 1.01 × 105 cm-2 and the density fluctuation of 1.9 ± 0.3% in the DsTau 2021 run.

show abstract

Section: The Target Mover and The Real-time Speed Control Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Development of proton beam irradiation system for the NA65/DsTau experiment

Aoki,

Ariga,

Ariga

et al. 2023

J. Inst.

View full text Add to dashboard Cite

show abstract

“…The excellent capability of hybrid emulsion experiments in the detection of short-lived particles was exploited in many projects that yielded outstanding science contributions. One can mention in particular the CERN WA75 experiment with the first direct observation of the production and decay of B mesons [25], and the Fermilab E653 experiment aimed at the measurement of B meson lifetime [26], in addition to other several studies conducted with proton and nucleus-nucleus interactions (see [3] for a review).…”

Section: A Brief Historymentioning

confidence: 99%

The Study of Neutrino Oscillations with Emulsion Detectors

Ereditato

2013

Advances in High Energy Physics

View full text Add to dashboard Cite

Particle detectors based on nuclear emulsions contributed to the history of physics with fundamental discoveries. The experiments benefited from the unsurpassed spatial and angular resolution of the devices in the measurement of ionizing particle tracks and in their identification. Despite the decline of the technique around the 1970’s caused by the development of the modern electronic particle detectors, emulsions are still alive today thanks to the vigorous rebirth of the technique that took place around the beginning of the 1990’s, in particular due to the needs of neutrino experiments. This progress involved both the emulsion detectors themselves and the automatic microscopes needed for their optical scanning. Nuclear emulsions have marked the study of neutrino physics, notably in relation to neutrino oscillation experiments and to the related first detection of tau-neutrinos. Relevant applications in this field are reviewed here with a focus on the main projects. An outlook is also given trying to address the main directions of the R&D effort currently in progress and the challenging applications to various fields.

show abstract

“…The concept of a completely automatic track recognition procedure, was proposed for the first time in the 1970s at Nagoya University [2] but the technology was not advanced enough to implement it. The efforts of the group became concrete during the 1980s when a first semi-automatic microscope with a dedicated hardware, named Track-Selector (TS) was used in the E653 experiment at Fermilab [3], and in the WA75 experiment at CERN [4]. In 1994 the evolution of the TS named NTS (New Track Selector) was the first fully automated system with a scanning speed of about 0.08 cm 2 /h.…”

Section: Introductionmentioning

confidence: 99%