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5. Recent progress of JT-60SA project toward plasma operation

Author

H. Shirai, K. Takahashi, E. Di Pietro, D. Abate, W. Abdel Maksoud, H. Abe, N. Aiba, T. Abe, M. Akimitsu, J. Ayllon-Guerola, T. Arai, J.-F. Artaud, N. Asakura, N. Ashikawa, L. Balbinot, P. Barabaschi, O. Baulaigue, E. Belonohy, A. Belpane, W. Bin, F. Bombarda, T. Bolzonella, F. Bonne, M. Bonotto, J. Botija, J. Buermans, S. Cabrera-Pérez, A. Cardella, D. Carralero, L. Carraro, J. Cavalier, M. Cavinato, M. Chernyshova, S. Chiba, S. Clement-Lorenzo, V. Cocilovo, S. Coda, R. Coelho, I. Coffey, B. Collin, V. Corato, A. Cucchiaro, T. Czarski, M. Dairaku, S. Davis, C. Day, E. Dela Luna, G. De Tommasi, P. Decool, L. Di Pace, M. Dibon, G. Disset, F. D’Lsa, A. Ejiri, Y. Endo, N. Ezumi, G. Falchetto, A. Fassina, P. Fejoz, A. Ferro, W. Fietz, L. Figini, T. Fornal, G. Frello, T. Fujita, T. Fukuda, K. Fukui, M. Fukumoto, H. Funaba, M. Furukawa, S. Futatani, L. Gabellieri, E. Gaio, K. Galazka, J. Garcia, J. Garcia-Dominguez, J. Garcia-Lopez, M. Garcia-Munoz, L. Garzotti, F. Gasparini, S. Gharafi, L. Giacomelli, G. Ginoulhiac, G. Giruzzi, L. Giudicotti, J. Gonzalez-Martin, R. Guillén-González, N. Hajnal, S. Hall, K. Hamada, K. Hanada, M. Hanada, K. Hasegawa, S. Hatakeyama, V. Hauer, N. Hayashi, T. Hayashi, R. Heller, J. Hidalgo-Salaverri, S. Higashijima, J. Hinata, S. Hiranai, J. Hiratsuka, R. Hiwatari, C. Hoa, H. Homma, A. Honda, M. Honda, K. Hoshino, H. Hurzlmeier, M. Iafrati, K. Ibano, H. Ichige, M. Ichikawa, M. Ichimura, K. Ida, S. Ide, H. Idei, M. Iguchi, T. Iijima, S. Iio, R. Ikeda, Y. Ikeda, T. Imai, R. Imazawa, S. Inagaki, M. Inomoto, S. Inoue, A. Isayama, S. Ishida, Y. Ishii, M. Isobe, F. Janky, E. Joffrin, A. Jokinen, S. Kado, S. Kajita, K. Kajiwara, Y. Kamada, I. Kamata, A. Kaminaga, K. Kamiya, D. Kanapienyte, Y. Kashiwa, M. Kashiwagi, K. Katayama, Y. Kawamata, G. Kawamura, K. Kawano, Y. Kazakov, K. Kimura, F. Kin, M. Kisaki, S. Kitajima, K. Kiyono, K. Kizu, Y. Ko, K. Kobayashi, M. Kobayashi, S. Kobayashi, Ta. Kobayashi, To. Kobayashi, G. Kocsis, A. Kojima, S. Kokusen, M. Komata, K. Komuro, S. Konishi, A. Kovacsik, I. Ksiazek, M. Kubkowska, G. Kühner, M. Kuramochi, K. Kurihara, T. Kurki-Suonio, A.B. Kurniawan, T. Kuwata, B. Lacroix, V. Lamaison, A. Lampasi, P. Lang, P. Lauber, K. Lawson, Q. LeCoz, A. Louzguiti, R. Maekawa, T. Maekawa, S. Maeyama, G. Maffia, P. Maget, J. Mailloux, I. Maione, A. Maistrello, K. Malinowski, A. Mancini, G. Marchiori, J.-L. Marechal, V. Massaut, S. Masuzaki, R. Matoike, G. Matsunaga, S. Matsunaga, A. Matsuyama, Ch Mayri, M. Mattei, M. Medrano, A. Mele, I. Meyer, F. Michel, T. Minami, Y. Miyata, J. Miyazawa, Y. Miyo, T. Mizuuchi, K. Mogaki, J. Morales, P. Moreau, T. Morisaki, S. Morishima, S. Moriyama, A. Moro, H. Murakami, M. Murayama, S. Murakami, K. Nagasaki, O. Naito, N. Nakamura, S. Nakamura, T. Nakano, Y. Nakashima, V. Nardino, E. Narita, Y. Narushima, K. Natsume, S. Nemoto, R. Neu, S. Nicollet, M. Nishikawa, S. Nishimura, T. Nishitani, M. Nishiura, T. Nishiyama, M. Nocente, Y. Nobuta, L. Novello, F. Nunio, S. Ochoa, K. Ogawa, T. Ogawa, Y. Ogawa, S. Ohdachi, Y. Ohmori, N. Ohno, Y. Ohtani, K. Ohtsu, M. Ohzeki, T. Oishi, J. Okano, K. Okano, Y. Onishi, M. Osakabe, T. Oshima, V. Ostuni, A. Owada, M. Oya, Y. Oya, T. Ozeki, M.M. Parody Guzmán, R. Pasqualotto, S. Pelli, E. Perelli, E. Peretti, G. Phillips, C. Piccinni, L. Pigatto, A. Pironti, A. Pizzuto, B. Plöckl, G. Polli, J.-M. Poncet, P. Ponsot, G. Pucella, M. Puiatti, D. Radloff, V. Raimondi, F. Ramos, P. Rancsik, D. Ricci, S. Ricciarini, N. Richermoz, E. Rincon, A. Romano, P. Rossi, P. Roussel, G. Rubino, H. Saeki, A. Sagara, S. Sakakibara, H. Sakamoto, Miki Sakamoto, Mizu Sakamoto, Y. Sakamoto, A. Sakasai, S. Sakata, R. Sakurai, B. Salanon, A. Salmi, G. Sannazzaro, R. Sano, A. Sanpei, T. Sasajima, S. Sasaki, H. Sasao, F. Sato, M. Sato, T. Sato, M. Sawahata, A. Scherber, S. Scully, J. Segado-Fernandez, M. Seki, N. Seki, S. Seki, Y. Shibama, Y. Shibata, T. Shikama, K. Shimada, M. Shimono, J. Shinde, T. Shinya, K. Shinohara, J. Shiraishi, S. Soare, A. Soleto, Y. Someya, S. Sonoda, C. Sozzi, E. Streciwilk-Kowalska, H. Strobel, M. Sueoka, A. Sukegawa, S. Sumida, H. Suzuki, Ma Suzuki, Mi Suzuki, S. Suzuki, T. Suzuki, Y. Suzuki, J. Svoboda, T. Szabolics, T. Szepesi, Y. Takase, M. Takechi, K. Takeda, Y. Takeiri, H. Takenaga, C. Taliercio, N. Tamura, Hiro Tanaka, Hito Tanaka, K. Tanaka, Y. Tanaka, K. Tani, H. Tanigawa, M. Tardocchi, A. Terakado, M. Terakado, T. Terakado, B. Teuchner, B. Tilia, H. Tobari, H. Tobita, K. Tobita, K. Toi, N. Toida, H. Tojo, M. Tokitani, T. Tokuzawa, V. Tormarchio, M. Tomine, A. Torre, T. Totsuka, K. Tsuchiya, N. Tsujii, D. Tsuru, H. Tsutsui, M. Uchida, Y. Ueda, J. Uno, H. Urano, K. Usui, H. Utoh, M. Valisa, M. Vallar, R. Vallcorba-Carbonel, J.-C. Vallet, J. Varela, J. Vega, M. Verrecchia, L. Vieillard, F. Villone, P. Vincenzi, K. Wada, R. Wada, T. Wakatsuki, M. Wanner, F. Watanabe, K. Watanabe, S. Watanabe, T. Wauters, S. Wiesen, M. Wischmeier, M. Yagi, J. Yagyu, M. Yajima, S. Yamamoto, H. Yamanaka, K. Yamauchi, Y. Yamauchi, H. Yamazaki, K. Yamazaki, R. Yamazaki, S. Yamoto, S. Yanagi, K. Yanagihara, S. Yokooka, M. Yokoyama, T. Yokoyama, M. Yoshida, M. Yoshimura, N. Yoshizawa, K. Yuinawa, L. Zani, and P. Zito

Subjects
JT-60SA, superconducting tokamak, risk mitigation measures, integrated commissioning, maintenance and enhancement, international collaboration, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract

Superconducting (SC) tokamak JT-60SA plays an essential role in fusion research and development by supporting and complementing the ITER project, providing directions to the DEMO design activity and fostering next generation scientists and engineers. Since the short circuit incident at the terminal joints of equilibrium field coil #1 during the integrated commissioning (IC) in March 2021, both EU and JA implementing agencies (IAs) have examined how to ensure safe operation of JT-60SA by mitigating the risk of possible discharge occurrence inside the cryostat. Based on the experience of the global Paschen tests, the IAs have established a strategy of risk mitigation measures, which is a combination of (i) reinforcement of insulation, (ii) avoiding unnecessary voltage application to the coil systems and (iii) immediate de-energization of the coils when deteriorated vacuum conditions are detected. Thanks to the considerable efforts of the Integrated Project Team members, the IC restarted in May 2023. After confirmation of the SC state of the coil systems (TF, EF and CS), the coil energization test and the plasma operation phase 1 (OP-1) started. The first plasma was successfully achieved on 23 October 2023 with a limited value of voltage and current applied to the coils. The plasma configuration control was also confirmed with low plasma current and low auxiliary heating power conditions. Based on the IO–F4E–QST collaboration, activities of JT-60SA have been shared with the IO and provided an important lesson for ITER assembly and commissioning, and will provide an outstanding contribution to fusion research at large. After OP-1, maintenance & enhancement phase 1 (M/E-1) starts from January 2024, in which in-vessel components are installed, and heating and diagnostic systems are extensively upgraded to allow a high power heating experiment planned in OP-2. In order to make the best use of JT-60SA, a newly organized JT-60SA experiment team will refine the research plan for the future high heating power operation phase.

Published
2024
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11. Early stages of liquid-metal embrittlement in an advanced high-strength steel

Author

Y. Ikeda, R. Yuan, A. Chakraborty, H. Ghassemi-Armaki, J.M. Zuo, and R. Maaß

Subjects
Advanced high strength steels, Liquid metal embrittlement, Transmission electron microscopy, 4-Dimensional scanning transmission electron microscopy, Materials of engineering and construction. Mechanics of materials, TA401-492
Abstract

Grain-boundary degradation via liquid-metal embrittlement (LME) is a prominent and long-standing failure process in next generation advanced high-strength steels. Here we reveal, well ahead of the crack tip, the presences of nano-scale grains of intermetallic phases in Zn-infiltrated but uncracked grain boundaries with scanning- and 4D transmission electron microscopy. Instead of the often-reported Zn-rich Fe-Zn intermetallics, the nano-scale phase in the uncracked infiltrated grain boundaries is identified as the Γ-phase, and its presence reveals the local enhancement of strain heterogeneities in the grain boundary network. Based on these observations, we argue that intermetallic phase formation is not occurring after cracking and subsequent liquid Zn infiltration but is instead one of the primary nanoscopic drivers for grain-boundary weakening and crack initiation. These findings shift the focus of LME from micro- and meso-scale crack investigations to the very early stages immediately following Zn diffusion, after which secondary phase nucleation and growth emerge as the root-cause for failure.

Published
2022
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12. Association between forest and greenspace walking and stress-coping skills among workers of Tsukuba Science City, Japan: A cross-sectional study

Author

T. Ikeda, D. Hori, Y. Arai, K. Muroi, Y. Ikeda, T. Takahashi, N. Shiraki, S. Doki, Y. Oi, S. Sasahara, E. Morita, and I. Matsuzaki

Subjects
Sense of coherence, Stress-coping, Workers, Forest walking, Greenspace walking, Public aspects of medicine, RA1-1270
Abstract

Objectives: Recently, “sense of coherence” (SOC) as a concept of stress-coping, has been gaining considerable attention. Although many studies have investigated the factors related to strong SOC, we found little evidence about the associations between SOC and habits that are easy to perform in everyday life. The aim our study was to examine the prevalence of workers who engage in forest walking and greenspace walking and examine their association with SOC score. Study design: A cross-sectional study. Methods: An anonymous, self-report web questionnaire was conducted in November 2017. The study population included 19481 workers belonging to the Tsukuba Science City Network and data of 6466 participants (3965 men and 2501 women) were analyzed. Results: The percentage of participants who engage in forest and greenspace walking at least once a year were 55.9% and 75.9%, respectively. Associations between forest/greenspace walking and SOC score were calculated using Chi-squared tests. Multinomial logistic regression analyses with SOC score group (strong/middle/weak) as a dependent variable and forest/greenspace walking as explanatory variables were performed. Statistically significant positive associations were observed between strong SOC and those who engaged in forest/greenspace walking after adjusting for socioeconomic factors. The odds ratios for strong SOC were 3.65 (95% CI ​= ​1.70–7.85) for forest walking at least once a week and 2.12 for greenspace walking (95% CI ​= ​1.54–2.92) at least once a week. Conclusions: Our findings suggested that forest/greenspace walking may enhance workers’ stress-coping skills.

Published
2021
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14. Implementation of a low-activation Au-In-Cd decoupler into the J-PARC 1 MW short pulsed spallation neutron source

Author

M. Teshigawara, Y. Ikeda, M. Ooi, M. Harada, H. Takada, M. Kakishiro, G. Noguchi, T. Shimada, K. Seita, D. Murashima, K. Fukatani, K. Kanomata, and T. Teraoku

Subjects
1 MW short pulsed spallation neutron source, Decoupler, Neutron absorber, Gold-indium-cadmium (Au-In-Cd) alloy, Silver-indium-cadmium (Ag-In-Cd) alloy, Hot isostatic pressing (HIP), Moderator-reflector assembly, Ultrasonic transmission, Aluminum alloy (A5083), ANSYS code, Nuclear engineering. Atomic power, TK9001-9401
Abstract

A silver-indium-cadmium (Ag-In-Cd, or AIC) alloy with a 1 eV high neutron cut-off energy was originaly developed as a decoupler to provide a narrow neutron pulse width with a short tail for the J-PARC 1-MW short-pulsed spallation neutron source. As a result of later studies, gold (Au) was chosen as a substitute for Ag for the production of spare decoupled moderators and reflector in order to reduce residual radioactivity thus easing handling and disposal of the spent moderator and reflector. The decoupler material Au-In-Cd (AuIC) was therefore investigated and developed. To implement it into an actual moderator-reflector assembly many critical engineering issues needed to be resolved with regard to large-sized bonding between AuIC and aluminum alloy A5083 by the hot isostatic pressing process (HIP). The HIP process for AuIC and aluminum was investigated in terms of surface condition, size, and heat capacity. Implementation of an AuIC decoupler into a spare reflector assembly was successfuly achieved and will result in a remarkable reduction of radioactivity compared to AIC without sacrificing neutronic performance.

Published
2018
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15. Essential Oils Extracted from Organic Propolis Residues: An Exploratory Analysis of Their Antibacterial and Antioxidant Properties and Volatile Profile

Author

Natália Y. Ikeda, Carmen M. S. Ambrosio, Alberto Claudio Miano, Pedro L. Rosalen, Eduardo M. Gloria, and Severino M. Alencar

Subjects
Escherichia coli, HS-GC/MS, Lactobacillus, pig production, feedstuff, bee product, Organic chemistry, QD241-441
Abstract

The industrial processing of crude propolis generates residues. Essential oils (EOs) from propolis residues could be a potential source of natural bioactive compounds to replace antibiotics and synthetic antioxidants in pig production. In this study, we determined the antibacterial/antioxidant activity of EOs from crude organic propolis (EOP) and from propolis residues, moist residue (EOMR), and dried residue (EODR), and further elucidated their chemical composition. The EOs were extracted by hydrodistillation, and their volatile profile was tentatively identified by GC-MS. All EOs had an antibacterial effect on Escherichia coli and Lactobacillus plantarum as they caused disturbances on the growth kinetics of both bacteria. However, EODR had more selective antibacterial activity, as it caused a higher reduction in the maximal culture density (D) of E. coli (86.7%) than L. plantarum (46.9%). EODR exhibited mild antioxidant activity, whereas EOMR showed the highest antioxidant activity (ABTS = 0.90 μmol TE/mg, FRAP = 463.97 μmol Fe2+/mg) and phenolic content (58.41 mg GAE/g). Each EO had a different chemical composition, but α-pinene and β-pinene were the major compounds detected in the samples. Interestingly, specific minor compounds were detected in a higher relative amount in EOMR and EODR as compared to EOP. Therefore, these minor compounds are most likely responsible for the biological properties of EODR and EOMR. Collectively, our findings suggest that the EOs from propolis residues could be resourcefully used as natural antibacterial/antioxidant additives in pig production.

Published
2021
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16. Magnetic structure of a non-centrosymmetric CePtSi3

Author

D. Ueta, M. Yoshida, Y. Ikeda, Y. Liu, T. Hong, T. Masuda, and H. Yoshizawa

Subjects
Physics, QC1-999
Abstract

Neutron diffraction experiments have been performed on single crystalline samples of CePtSi3. We found that the incommensurate magnetic propagation vector τ1 = (±0.283, 0, 0) in the phase I (2.2 ∼ 4.8 K) switches to the commensurate vectors τ2 = (±0.25, 0, 0) and τ3 = (±0.25, 0, ±1) in the phase III (∼ 2.8 K) at zero field. Although the magnetic structure of CePtSi3 in the phase I is a spin density wave similar to those in CeRhSi3, CeIrSi3, and CePdSi3, the magnetic structure in the phase III is commensurate unlike other CeTSi3 (T = Rh, Ir, Pd) compounds.

Published
2018
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17. Detection of Diatomic Molecules in the Dust Forming Nova V2676 Oph

Author

M. Nagashima, A. Arai, T. Kajikawa, H. Kawakita, E. Kitao, T. Arasaki, G. Taguchi, and Y. Ikeda

Subjects
Engineering (General). Civil engineering (General), TA1-2040
Abstract

Novae are generally considered to be hot astronomical objects and show effective temperatures up to 10,000 K or higher at their visual maximum. But, it is theoretically predicted that the outer envelope of the nova outflow can become cool enough to form molecules that would be dissociated at high temperatures. We detected strong absorption bands of C2 and CN radicals in the optical spectrum of Nova V2676 Oph, a very slow nova with dust formation. This is the first report of the detection of C2 and the second one of CN in novae during outburst. Although such simple molecules are predicted to form in the envelope of the outflow based on previous studies, there are few reports of their detection. In the case of V2676 Oph, the presence of the molecular envelope is considered to be very transient, lasting several days only.

Published
2015
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18. Spectroscopic Monitoring Observations of Nova V1724 Aql in 2012

Author

T. Kajikawa, M. Nagashima, H. Kawakita, A. Arai, Y. Ikeda, M. Isogai, M. Fujii, and K. Ayani

Subjects
Engineering (General). Civil engineering (General), TA1-2040
Abstract

Spectroscopic and photometric monitoring observations of nova Apl 2012 (V1724 Apl) were conducted at Koyama Astronomical Observatory, Fujii-Kurosaki Observatory and Bisei Astronomical Observatory. The nova was initially considered as an outbursting pre-main-sequence young stellar object. Our monitoring observations have revealed the nova to be a Fe II type classical nova. The temporal evolution of spectra and light curves of the nova were similar to those of a slow nova (e.g., V1280 Sco and V5558 Sgr). We observed no evidence of molecule formation in V1724 Aql in contrast with V2676 Oph in which dust formation occurred after the molecular formation in the nova outflow.

Published
2015
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19. Oxidative stress was significantly associated with peak oxygen uptake in patients with dilated cardiomyopathy

Author

S Ojima, T Kubozono, S Kawasoe, T Kawabata, A A Salim, Y Ikeda, and M Ohishi

Subjects
Cardiology and Cardiovascular Medicine
Abstract

Background Systemic oxidative stress is known to be associated with the severity and prognosis in patients with cardiovascular diseases (CVD), including chronic heart failure. On the other hand, exercise tolerance is closely related to the prognosis in heart failure patients. However, no report has examined how oxidative stress is involved in each parameter evaluated by cardiopulmonary exercise testing (CPET) in patients with dilated cardiomyopathy (DCM). Purpose To examine the relationship between oxidative stress and CPET parameters such as peak VO2 and VE/VCO2 slope in patients with DCM Methods We recruited 214 patients with CVD who were performed CPET and measured brain natriuretic peptide (BNP) and haemoglobin (Hb). Finally, we enrolled 96 patients with DCM who have dilated dimensions of the left ventricular lumen by echocardiography and are diagnosed by endomyocardial biopsy. All patients underwent CPET using 0W warm-up and 10W ramp protocol on an upright electrical bicycle ergometer. We defined low peak VO2 as peak VO234. The oxidative stress level was evaluated by a d-ROMs test, in which the amount of organic hydroperoxide converted into radicals oxidizing N, N-diethyl-p-phenylenediamine hydroperoxide is measured. The high level of d-ROMs was defined as d-ROMs≥401 U.CARR. Results Mean age was 56±15 years old. Mean ejection fraction, peak VO2 and VE/VCO2 slope were 37±15%, 16.3±5.0 ml/min/kg, and 31.0±11.8, respectively. The percentage of the high level of d-ROMs was 25%. In univariable logistic regression analysis, Hb, log BNP, and the high level of oxidative stress were significantly associated with low peak VO2, whereas, in multivariable logistic regression analysis, age, Hb, and log BNP were significant factors for high VE/VCO2 slope. In multivariable logistic regression analysis, only the high level of d-ROMs was independently associated with low peak VO2 (OR 3.18, CI 1.12–9.04, p=0.030). While, in multivariable logistic regression analysis, Hb (OR 0.51, CI 0.32–0.81, p=0.004) and log BNP (OR 2.77, CI 1.33–5.76, p=0.006) were significantly related to high VE/VCO2 slope. Conclusions In patients with DCM, low peak VO2 was associated with the high level of d-ROMs, and high VE/VCO2 slope was associated with BNP. These results suggested that oxidative stress was only related to peak VO2. Funding Acknowledgement Type of funding sources: None.

Published
2022
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20. Association of cardiac prognosis in chronic limb-threatening ischemia patients after endovascular intervention and wound, ischemia, and foot infection clinical stage

Author

D Kanda, K Anzaki, T Sonoda, K Ohmure, Y Ikeda, and M Ohishi

Subjects
Cardiology and Cardiovascular Medicine
Abstract

Background Chronic limb-threatening ischemia (CLTI) represents the end-stage manifestation of peripheral artery disease. Recently, the Society for Vascular Surgery established the Wound, Ischemia, and foot Infection (WIfI) classification system, focusing on disease severity rather than arterial lesion characteristics. While the WIfI clinical stage has been thought to have a prognostic value in CLTI patients, the hemodialysis and left ventricular ejection fraction (LVEF) also appear to represent pivotal factor affecting prognosis among CLTI patients. However, few reports have addressed associations between WIfI clinical stage and cardiac death. Purpose The purpose of this study was to investigate the patient's clinical factors including WIfI clinical stage and mortality of CLTI patients undergoing endovascular intervention based on WIfI clinical stage. Methods This retrospective study investigated 200 consecutive CLTI patients and we individually assessed WIfI clinical stage. We then compared mortality after endovascular intervention between a WIfI stage 1, 2 group and a stage 3, 4 group, and investigated associations between baseline characteristics and WIfI clinical stage 1, 2 group and a stage 3, 4 group. Results Among 200 patients, 123 patients (62%) showed WIfI stage 1 or 2, and the remaining 77 patients (38%) had WIfI stage 3 or 4. Age was significantly higher in the WIfI stage 3, 4 group [median 75, interquartile range (IQR) 68–82] compared with the WIfI stage 1, 2 group (median 70, IQR 63–79, p=0.004). The rate of diabetes mellitus patients was significantly higher in the WIfI stage 3, 4 group (62% vs. 82%, p=0.003), but no differences in the rate of hemodialysis between WIfI stage 3, 4 group and WIfI stage 1, 2 group (53% vs. 37%, p=0.056). Median duration of follow-up was 966 days (IQR, 540–1268 days). Forty patients (20%) died after endovascular intervention. Incidences of all-cause and cardiac deaths were higher in the WIfI stage 3, 4 group than in theWIfI stage 1, 2 group (27% vs. 15%, p=0.047 and 12% vs. 3%, p=0.040, respectively). Kaplan–Meier analysis showed a significantly lower survival rate in the WIfI stage 3, 4 group than in theWIfI stage 1, 2 group (p=0.002 by log-rank test). Cox proportional hazard univariate analysis revealed that WIfI stage 3 or 4 [odds ratio (OR) 4.22, 95% confidence interval (CI) 1.29–13.72, p=0.012), hemodialysis (OR 4.67, 95% CI 1.28–16.96, p=0.010), LVEF (OR 0.96, 95% CI 0.92–0.99, p=0.045) were correlated to cardiac death. Multivariate analysis models using relevant factors from univariate analysis showed only WIfI stage 3 or 4 [odds ratio (OR) 3.74, 95% confidence interval (CI) 1.08–12.87, p=0.028) was significantly associated with cardiac death. Conclusion These results indicate that CLTI patients with high WIfI clinical stage may be associated with poor cardiac prognosis after endovascular intervention. Funding Acknowledgement Type of funding sources: None.

Published
2022
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21. Secondary rotational atherectomy strategy may reduce the occurrence of prolonged ST-segment elevation following ablation

Author

D Kanda, T Takumi, K Anzaki, T Sonoda, K Ohmure, Y Ikeda, and M Ohishi

Subjects
Cardiology and Cardiovascular Medicine
Abstract

Background Rotational atherectomy (RA) has been widely used for severely calcified lesions in performing percutaneous coronary intervention (PCI). The slow flow phenomenon is the most frequently observed complication of RA and leads to prolonged ST-segment elevation. The incidence of the slow flow phenomenon was reported as approximately 5–20%. Several methods have been recommended to treat the slow flow phenomenon; however, the elevation of ST-segment may often persist after disappearance of slow flow phenomenon on angiography. Purpose The aim of the present study was to investigate the clinical factors on the incidence of prolonged ST-segment elevation following ablation of RA. Methods The subject comprised 140 consecutive stable angina patients with severe calcified lesions. All patients had undergone successfully elective PCI using RA and intravascular ultrasound, and had been prescribed strong statins more than 2 week before PCI regardless dyslipidemia. We investigated the occurrence of prolonged ST-segment elevation following ablation of RA with resistance to use of nitroprusside as intra-coronary vasodilators, and the clinical factors including of primary or secondary RA strategy for calcification lesions. Secondary RA strategy was defined as RA performed after pre-dilatation with small balloon (balloon/artery ratio = 0.6). Results Median of age was 71 years (66–80) and 98 cases (70%) were male. Of 140 target lesions, 82 (59%) were LAD (RCA; 24%, LCX; 16%, and LMT; 1%, respectively). The rates of hemodialysis and diabetes mellitus were 31% and 61%. The incidence of prolonged ST-segment elevation with resistance to use of nitroprusside as intra-coronary vasodilators was 8 cases (6%). Major complications of RA including coronary perforation, coronary rupture, burr entrapment and cardiogenic shock requiring the mechanical support were none. Univariate logistic regression analysis showed that age [Odds ratio (OR); 1.07, 95% confidence interval (CI) 0.99–1.17, p=0.103], hemodialysis (OR; 0.71, 95% CI: 0.10–3.25, p=0.688), diabetes mellitus (OR; 1.08, 95% CI: 0.25–5.46, p=0.915), use of β-blocker (OR; 0.70, 95% CI: 0.14–2.96, p=0.633), left ventricular ejection fraction (OR; 0.99, 95% CI: 0.94–1.05, p=0.781), lesion length ≥20mm (OR; 1.04, 95% CI: 0.23–7.33, p=0.962), and burr size (OR; 2.42, 95% CI: 0.53–16.95, p=0.289) were not associated with the incidence of prolonged ST-segment elevation. Multivariate logistic regression analysis for the incidence of prolonged ST-segment elevation revealed that secondary RA strategy and levels of low-density lipoprotein cholesterol (LDL-C) were independent factors of the incidence of prolonged ST-segment elevation following ablation of RA (OR; 0.05, 95% CI: 0.01–0.39, p=0.017 and LDL-C: OR 0.91, 95% CI 0.83–0.96, p=0.010, respectively). Conclusion Secondary RA strategy may be useful to reduce the occurrence of prolonged ST-segment elevation following ablation of RA. Funding Acknowledgement Type of funding sources: None.

Published
2022
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22. Early vascular responses to abluminal biodegradable polymer-coated versus circumferential durable polymer-coated newer-generation drug-eluting stents in humans: a pathologic study

Author

Y Kawagoe, F Otuka, D Onozuka, H Ueda, Y Ikeda, K Ogo, M Matsumoto, K Amemiya, Y Asaumim, Y Kataoka, K Nishimura, Y Miyamoto, T Noguchi, K Hatakeyama, and S Yasuda

Subjects
Cardiology and Cardiovascular Medicine
Abstract

Background Recent clinical trials are testing strategies for short (1–3 months) dual antiplatelet therapy (DAPT) following newer-generation drug-eluting stent (DES) placement. However, the safety of short DAPT regimens is not supported by biological evidence in humans. Purpose We sought to evaluate early pathologic responses to newer-generation DES by comparing abluminal biodegradable polymer-coated DES (BP-DES) with circumferential durable polymer-coated DES (DP-DES) in human autopsy cases. Methods The study included a total of 37 coronary lesions with thin strut newer-generation DES (DP-DES=23 [XIENCE=18, Resolute Integrity=5] and BP-DES=14 [SYNERGY=9, Ultimaster=5]) with duration of implantation Results Duration of implantation was similar in lesions with DP-DES and those with BP-DES (median=20 vs. 17 days). A total of 1986 struts (DP-DES=1261, BP-DES=725) were pathologically analyzed. Focal grade 2 coverage was observed as early as 5 days after the implantation in both stents. Multilevel mixed-effects ordered logistic regression model demonstrated that BP-DES exhibited greater strut coverage compared with DP-DES (odds ratio; 3.50, 95% CI; 1.31–9.41, P=0.013), which remained significant after adjustment for duration of implantation and underlying tissue characteristics (odds ratio; 2.64, 95% CI; 1.04–6.68, P=0.040). The time course of vessel healing assessed as predictive probability of strut coverage (grade 0–3) stratified by duration of implantation is shown in Figure 2. Predictive probability of grade 2 and 3 coverage was comparably limited at 30 days (DP-DES=17.7% vs. BP-DES=29.0%) and increased at 90 days (DP-DES=76.1% vs. BP-DES=85.9%). Both stents showed few inflammation and similar degree of fibrin deposition. Conclusions The current first pathologic study on early biological responses to newer-generation DES in humans demonstrated that single-layered endothelial coverage begins in days following the stent placement, and abluminal BP-DES potentially exhibit faster strut coverage with smooth muscle cell infiltration than circumferential DP-DES. Nevertheless, vessel healing remains suboptimal at 30 days in both DP- and BP-DES, which progresses with time to become substantial at 90 days. Our results suggest that very short duration of DAPT for 1 month should be applied with caution, taking into account the trade-off between bleeding and thrombotic risks. Funding Acknowledgement Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Grant-in-Aid for Scientific Research (C) from the Japan Society for the Promotion of Science

Published
2022
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23. Peak oxygen uptake in cardiopulmonary exercise testing was associated with left ventricular diastolic dysfunction in patients with preserved ejection fraction

Author

S Ojima, T Kubozono, S Kawasoe, T Kawabata, A A Salim, Y Ikeda, and M Ohishi

Subjects
Cardiology and Cardiovascular Medicine
Abstract

Background Heart failure with preserved ejection fraction (EF) remains a poor prognosis as same as heart failure with reduced EF. Peak oxygen uptake (VO2) by cardiopulmonary exercise testing (CPET) is a useful parameter for predicting cardiovascular diseases prognosis. Furthermore, though there are some reports that CPET parameters are associated with indicators of diastolic dysfunction, each of these indicators has some limitations. Recently, recommendations for the evaluation of left ventricular diastolic function by echocardiography were reported from the ASE/EACVI. However, no reports have examined the association between exercise tolerance indices and diastolic dysfunction based on these recommended variables. Purpose To examine the relationship between peak VO2 and diastolic dysfunction using the recommendation from ASE/EACVI in cardiovascular diseases patients with preserved EF Methods We recruited 214 patients who were performed both CPX and echocardiography. EF ≥50% was 99 patients. All patients underwent 0W warm-up and 10W ramp on an upright electrical bicycle ergometer. Diastolic dysfunction was assessed using the recommendations for the evaluation of diastolic function by ASE/EACVI. We used abnormal cutoff values are annular e' velocity: septal e' 14, left atrial volume index >34 ml/m2, and peak tricuspid regurgitation (TR) velocity >2.8 m/s. Diastolic dysfunction is present if more than half of the available parameters meet these cutoff values. Results Mean age was 57±14 years old, the portion of women was 69%. The portion of diastolic dysfunction was 16%. In univariable logistic regression analysis, age, log BNP, septal e' 2.8 m/s, and the presence of diastolic dysfunction were significantly associated with peakVO2 Conclusions In preserved EF, low peak VO2 was significantly associated with diastolic dysfunction assessed by the recommendations from the ASE/EACVI. Funding Acknowledgement Type of funding sources: None.

Published
2022
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24. Cell culture and genetic transfection methods for the Japanese scallop, Patinopecten yessoensis

Author

Koki Uchida, Minako Suzuki, Tadaaki Nakajima, Yasuhiro Tomooka, Tomomi Okumura, and Y. Ikeda

Subjects
primary culture, Cell type, animal structures, biology, QH301-705.5, Patinopecten yessoensis, Marine invertebrates, biology.organism_classification, Embryonic stem cell, General Biochemistry, Genetics and Molecular Biology, Cell biology, scallop, stomatognathic system, Cell culture, Scallop, Hepatopancreas, genetic transfection, Biology (General), Adductor muscles, gonadal cells, Research Articles, Research Article
Abstract

Cell cultures can simplify assays of biological phenomena; therefore, cell culture systems have been established for many species, even invertebrates. However, there are few primary culture systems from marine invertebrates that can be maintained long term. The Japanese scallop, Patinopecten yessoensis, is a marine bivalve. Cell culture systems for the scallop have only been established for a few organ‐derived cell types and for embryonic cells. We developed a primary culture system for cells from male and female scallop gonads, hepatopancreas, and adductor muscle by utilizing culture conditions closer to those in nature, with regard to temperature, osmolarity, and nutrition. Primary cultured female gonadal cells were maintained for more than 1 month and had potential for proliferation. Furthermore, a genetic transfection system was attempted using a scallop‐derived promoter and a lipofection reagent. GFP‐positive cells were detected in the attempt. These technical developments would promote our understanding of biochemical mechanisms in scallops as well as providing clues for establishment of immortalized molluscan cell lines., We developed a primary culture system for female and male gonad‐, hepatopancreas‐, and adductor muscle‐derived cells from Japanese scallop, Patinopecten yessoensis. In the female gonadal cell culture, we succeeded in maintaining the cultured cells for at least one month and the culture had potential for cell proliferation. We attempted transfection of female gonadal cells with scallop‐derived promoters and lipofection reagent.

Published
2021
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28. Distribution of glutamic acid decarboxylase immunoreactivity within the brain of oval squid Sepioteuthis lessoniana

Author

S Kobayashi, C Takayama, and Y Ikeda

Subjects
Biology (General), QH301-705.5, Microbiology, QR1-502
Abstract

Coleoid cephalopods (squid, cuttlefish, and octopus) have the largest and most complex brains of all invertebrates and show behavioral abilities similar to those of vertebrates. Among the coleoids, the oval squid Sepioteuthis lessoniana forms well-structured schools that are indicative of sociality. These behaviors are reflected in aspects of the well-developed brain. In this study, we focused on the role of the cephalopod brain in complex behavior. In order to reveal the network of γ-aminobutyric acid (GABA) in coleoids, we examined thmmunohistochemical localization of glutamic acid decarboxylase (GAD), which is the synthetic enzyme of GABA, in the brain of young S. lessoniana. We found that GABAergic neurons and their axons were distributed throughout the brain. GABA neurons were abundantly localized in the inferior frontal lobe, which is involved in controlling arm motions, and in the subesophageal masses, which are lower and intermediate centers of action. GABAergic fibers were abundantly localized in the tract that runs from the superior frontal lobe to the vertical lobe. These results suggested the involvement of GABA in both cognitive behaviors (such as learning and memory) and in movement.

Published
2013
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29. Vortex-induced Vibration of a Flexible Free-hanging Circular Cantilever

Author

R. W. Prastianto, K. Otsuka, and Y. Ikeda

Subjects
vortex-induced vibration, free-hanging cantilever, bidirectional motion, free-end condition, vortex wake mode, Engineering (General). Civil engineering (General), TA1-2040
Abstract

An experimental investigation on time-dependent motion of a flexible free-hanging circular cantilever subjected to uniform cross-flows has been carried out. The free-end condition cantilever has a 34.4 aspect ratio and a low mass ratio of about 1.24. The cylinder freely oscillates in both inline and transverse to the flow. Reynolds number varied from 10,800 to 37,800. The “jump phenomenon” was also found in the inline motion of the cylinder that agrees well with an existing comparable work, even occurred at lower flow velocity, Ur, due to distinct conditions of the test. At high flow velocities, the 3rd higher harmonic frequencies of the cylinder transverse response became predominant that produce quite different motion characteristics compared to the other existing comparable works with 2-dimensional bottom-end condition, even same in bidirectional motion aspect. Generally, the results suggested that the flexible free-hanging cantilever generate different vortex wake mode than either, a uniform (a short-rigid flexibly-mounted cylinder) or a linear amplitude variation along the span case (a pivoted cylinder).

Published
2009

31. Priority of non-HDL-C assessment to predict occurrence of new lesions after percutaneous coronary intervention in stable angina patients with diabetes mellitus prescribed strong statins

Author

D Kanda, M Miyata, K Anzaki, R Arikawa, T Sonoda, K Ohmure, A Tokushige, Y Ikeda, and M Ohishi

Subjects
Cardiology and Cardiovascular Medicine
Abstract

Background Diabetes mellitus (DM) patients are known to suffer from a higher risk of adverse outcomes following percutaneous coronary intervention (PCI) despite of low-density lipoprotein cholesterol (LDL-C)-lowering therapy with statins. Thus, identification of factors that may occurrence of new lesions following PCI in DM patients treated with strong statin is clinically important. Although LDL-C is generally calculated using the Friedewald equation method [LDL-C (F)], the effects of LDL-C measured by the Martin method [LDL-C (M)] or non-high-density lipoprotein cholesterol (non-HDL-C) on the occurrence of new lesions on coronary angiography after PCI among stable angina patients with DM receiving treatment with strong statins are unknown. Purpose The aim of the present study was to investigate the clinical factor on the occurrence of new lesions in stable angina patients with DM at 9-month follow-up coronary angiography and within 2 years after PCI. Methods The subject was 313 consecutive stable angina patients with DM who were admitted to undergo PCI. All patients had undergone successfully elective PCI using second-generation drug-eluting stents and intravascular ultrasound, and had been prescribed strong statins regardless dyslipidemia more than 2 week before PCI. We investigated the clinical factor on the occurrence of new lesions with myocardial ischemia. We estimated LDL-C (F), LDL-C (M), and non-HDL-C in this study. Acute coronary syndrome and hemodialysis patients were excluded from this study. Results Median of age and level of glycosylated hemoglobin (HbA1c) were 69 years (62–76) and 6.8% (6.3–7.3). New lesions appeared 9-month follow-up coronary angiography [New lesion(+) 9-month] and within 2 years [New lesion(+) 2-year] after PCI in 19 (6%) and 62 (20%) patients, respectively. The rate of history of smoking, using of β-blocker, and non-HDL-C ≥100 mg/dL and level of HbA1c were significantly higher in the New lesion(+) 9-month group than those in the New lesion(−) 9-month group after PCI. Age, level of high-sensitivity C-reactive protein and triglyceride, frequencies of LDL-C (F) ≥70 mg/dL, LDL-C (M) ≥70 mg/dL and non-HDL-C ≥100 mg/dL were significantly higher in the New lesion(+) 2-year group than those in the New lesion(−) 2-year group after PCI. Multivariate logistic regression analysis demonstrated only non-HDL-C ≥100 mg/dL was associated with the occurrence of new lesions both 9-month and within 2 years [9-month: hazard ratio (HR) 4.25, 95% confidence interval (CI) 1.30–19.23, p=0.014 and 2-year: HR 2.30, 95% CI 1.24–4.45, p=0.010]. Conclusion Only non-HDL-C ≥100 mg/dL was an independently associated with the occurrence of new lesions both 9-month and within 2 years after PCI in stable angina patients with DM treated with strong statins. Residual risk after PCI in DM patients should be considered by assessing non-HDL-C beyond the scope of LDL-C-lowering therapy with strong statins. Funding Acknowledgement Type of funding sources: None.

Published
2021
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32. The impact of malnutrition-inflammation-atherosclerosis (MIA) syndrome on the prognosis of elderly patients with chronic limb-threatening ischemia after endovascular therapy

Author

T Sonoda, D Kanda, Y Ikeda, K Anzaki, R Arikawa, K Ohmure, A Tokushige, and M Ohishi

Subjects
Cardiology and Cardiovascular Medicine
Abstract

Background Chronic limb-threatening ischemia (CLTI) is known to the most advanced form of severe arteriosclerosis in peripheral artery disease and cause poor prognosis. Whereas malnutrition (M), inflammation (I) and atherosclerosis (A) are reported to be involved in the pathophysiology of end-stage renal disease with close relevancy and affect its clinical outcomes, the effect of such MIA syndrome on the mortality in elderly patients with CLTI has not been well evaluated. Purpose The aim of the present study was to investigate the influence of patient characteristics including MIA syndrome on the mortality in elderly CLTI patients Methods The subject was 222 consecutive elderly (≥65 year) CLTI patients who were admitted to undergo endovascular therapy (EVT). We assessed nutritional status using Geriatric Nutritional Risk Index (GNRI) in this study, and defined patients with GNRI 92+hs-CRP ≥1 mg/dL, Group D; GNRI >92+hs-CRP Results All-cause death after EVT were 37 cases (17%). In this study, all patients underwent successful EVT for target lesions. As a result of cox proportional hazards analysis, all-cause death was associated with MIA syndrome [hazard ratio (HR): 2.41, 95% confidence interval (CI): 1.13–5.17, p Conclusions MIA syndrome was a strong predictor for incidence of all-cause death in elderly CLTI patients after EVT. Funding Acknowledgement Type of funding sources: None.

Published
2021
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33. Association between lowering heart rate during IMPELLA support and favorable short-term outcome in patients with cardiogenic shock

Author

K Maemura, Y Ikeda, Y Eda, T Oki, M Yazaki, T Fujita, Y Iida, T Nabeta, S Ishii, K Koriyama, E Maekawa, T Koitabashi, and J Ako

Subjects
Cardiology and Cardiovascular Medicine
Abstract

Background Impella has been increasingly used in patients with cardiogenic shock (CGS). Target values for clinical indices for appropriate management of Impella have not yet been established. Purpose We aimed to elucidate the association between heat rate (HR) during Impella treatment in patients with CGS and clinical outcomes. Methods and results We retrospectively evaluated 62 patients (68±14 years; male 77%) with CGS receiving temporary circulatory support with the Impella between February 1, 2019, and February 31, 2021. The primary end point was 30-day mortality. Clinical characteristics, laboratory and hemodynamic markers at implantation of Impella (baseline), 12, 24 hr after implantation, and removal of Impella were assessed. There were 28 patients with concomitant use of extracorporeal membrane oxygenation (ECMO). Treatment periods using Impella were 8±6 days. After excluding 11 patients who died during Impella support, the relationship between clinical indicators at each time points and 30-day mortality was evaluated. There were 22 patients (43%) with 30-day mortality. Factors associated with 30-day mortality were: female, ECMO, higher 24-hr lactate level, lower 24-hr cardiac power output, and higher HR at removal. Lower HR of ≤81 bpm at removal was found to most accurately predict lower 30-day mortality (Figure 1). Higher increases in dose of beta-blockers during Impella support and lower absolute doses of norepinephrine at removal were correlated with decreases in HR during Impella support. Conclusions In patients with CGS treated with Impella, lower HR at removal was associated with lower incidence of 30-day mortality. Lowering HR during Impella treatment was recognized as a simple indicator for favorable clinical outcomes in patients with CGS. It was suggested that chronotropic interventions during Impella treatment may be novel therapeutic options in patients with CGS. Funding Acknowledgement Type of funding sources: None. Figure 1

Published
2021
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34. Essential Oils Extracted from Organic Propolis Residues: An Exploratory Analysis of Their Antibacterial and Antioxidant Properties and Volatile Profile

Author

Alberto Claudio Miano, Severino Matias de Alencar, Carmen M S Ambrosio, Eduardo Micotti da Gloria, Natália Y. Ikeda, and Pedro Luiz Rosalen

Subjects
Antioxidant, medicine.medical_treatment, bee product, Pharmaceutical Science, Organic chemistry, Antioxidants, Propolis, Article, Analytical Chemistry, 03 medical and health sciences, chemistry.chemical_compound, 0404 agricultural biotechnology, QD241-441, Lactobacillus, Drug Discovery, Escherichia coli, Oils, Volatile, medicine, Food science, Physical and Theoretical Chemistry, 030304 developmental biology, 0303 health sciences, Residue (complex analysis), ABTS, biology, Chemistry, 04 agricultural and veterinary sciences, biology.organism_classification, 040401 food science, Anti-Bacterial Agents, pig production, Chemistry (miscellaneous), Molecular Medicine, Antibacterial activity, HS-GC/MS, Bacteria, Lactobacillus plantarum, feedstuff
Abstract

The industrial processing of crude propolis generates residues. Essential oils (EOs) from propolis residues could be a potential source of natural bioactive compounds to replace antibiotics and synthetic antioxidants in pig production. In this study, we determined the antibacterial/antioxidant activity of EOs from crude organic propolis (EOP) and from propolis residues, moist residue (EOMR), and dried residue (EODR), and further elucidated their chemical composition. The EOs were extracted by hydrodistillation, and their volatile profile was tentatively identified by GC-MS. All EOs had an antibacterial effect on Escherichia coli and Lactobacillus plantarum as they caused disturbances on the growth kinetics of both bacteria. However, EODR had more selective antibacterial activity, as it caused a higher reduction in the maximal culture density (D) of E. coli (86.7%) than L. plantarum (46.9%). EODR exhibited mild antioxidant activity, whereas EOMR showed the highest antioxidant activity (ABTS = 0.90 μmol TE/mg, FRAP = 463.97 μmol Fe2+/mg) and phenolic content (58.41 mg GAE/g). Each EO had a different chemical composition, but α-pinene and β-pinene were the major compounds detected in the samples. Interestingly, specific minor compounds were detected in a higher relative amount in EOMR and EODR as compared to EOP. Therefore, these minor compounds are most likely responsible for the biological properties of EODR and EOMR. Collectively, our findings suggest that the EOs from propolis residues could be resourcefully used as natural antibacterial/antioxidant additives in pig production.

Published
2021

35. PHENIX Collaboration

Author

A. Adare, S. Afanasiev, C. Aidala, N.N. Ajitanand, Y. Akiba, R. Akimoto, H. Al-Bataineh, J. Alexander, M. Alfred, A. Al-Jamel, H. Al-Ta'ani, K.R. Andrews, V. Andrieux, A. Angerami, K. Aoki, N. Apadula, L. Aphecetche, E. Appelt, Y. Aramaki, R. Armendariz, S.H. Aronson, J. Asai, H. Asano, E.C. Aschenauer, E.T. Atomssa, R. Averbeck, T.C. Awes, C. Ayuso, B. Azmoun, V. Babintsev, A. Bagoly, M. Bai, X. Bai, G. Baksay, L. Baksay, A. Baldisseri, N.S. Bandara, B. Bannier, K.N. Barish, P.D. Barnes, B. Bassalleck, A.T. Basye, S. Bathe, S. Batsouli, V. Baublis, F. Bauer, C. Baumann, S. Baumgart, A. Bazilevsky, M. Beaumier, S. Beckman, S. Belikov, R. Belmont, J. Ben-Benjamin, R. Bennett, A. Berdnikov, Y. Berdnikov, J.H. Bhom, A.A. Bickley, M.T. Bjorndal, D. Black, D.S. Blau, M. Boer, J.G. Boissevain, J.S. Bok, H. Borel, K. Boyle, M.L. Brooks, D.S. Brown, D. Broxmeyer, J. Bryslawskyj, D. Bucher, H. Buesching, V. Bumazhnov, G. Bunce, J.M. Burward-Hoy, C. Butler, S. Butsyk, C.M. Camacho, S. Campbell, V. Canoa Roman, A. Caringi, P. Castera, R. Cervantes, J.-S. Chai, B.S. Chang, W.C. Chang, J.-L. Charvet, C.-H. Chen, S. Chernichenko, C.Y. Chi, J. Chiba, M. Chiu, I.J. Choi, J.B. Choi, S. Choi, R.K. Choudhury, P. Christiansen, T. Chujo, P. Chung, A. Churyn, O. Chvala, V. Cianciolo, Z. Citron, C.R. Cleven, Y. Cobigo, B.A. Cole, M.P. Comets, Z. Conesa del Valle, M. Connors, P. Constantin, N. Cronin, N. Crossette, M. Csanád, T. Csörgő, T. Dahms, S. Dairaku, I. Danchev, T.W. Danley, K. Das, A. Datta, M.S. Daugherity, G. David, M.K. Dayananda, M.B. Deaton, K. DeBlasio, K. Dehmelt, H. Delagrange, A. Denisov, D. d'Enterria, A. Deshpande, E.J. Desmond, K.V. Dharmawardane, O. Dietzsch, L. Ding, A. Dion, P.B. Diss, D. Dixit, J.H. Do, M. Donadelli, L. D'Orazio, J.L. Drachenberg, O. Drapier, A. Drees, K.A. Drees, A.K. Dubey, M. Dumancic, J.M. Durham, A. Durum, D. Dutta, V. Dzhordzhadze, S. Edwards, Y.V. Efremenko, J. Egdemir, T. Elder, F. Ellinghaus, W.S. Emam, T. Engelmore, A. Enokizono, H. En'yo, B. Espagnon, S. Esumi, K.O. Eyser, B. Fadem, W. Fan, N. Feege, D.E. Fields, M. Finger, F. Fleuret, S.L. Fokin, B. Forestier, Z. Fraenkel, J.E. Frantz, A. Franz, A.D. Frawley, K. Fujiwara, Y. Fukao, Y. Fukuda, S.-Y. Fung, T. Fusayasu, S. Gadrat, K. Gainey, C. Gal, P. Gallus, P. Garg, A. Garishvili, I. Garishvili, F. Gastineau, H. Ge, M. Germain, F. Giordano, A. Glenn, H. Gong, X. Gong, M. Gonin, J. Gosset, Y. Goto, R. Granier de Cassagnac, N. Grau, S.V. Greene, G. Grim, M. Grosse Perdekamp, Y. Gu, T. Gunji, L. Guo, H. Guragain, H.-Å. Gustafsson, T. Hachiya, A. Hadj Henni, C. Haegemann, J.S. Haggerty, M.N. Hagiwara, K.I. Hahn, H. Hamagaki, J. Hamblen, H.F. Hamilton, R. Han, S.Y. Han, J. Hanks, H. Harada, C. Harper, E.P. Hartouni, K. Haruna, M. Harvey, S. Hasegawa, T.O.S. Haseler, K. Hashimoto, E. Haslum, K. Hasuko, R. Hayano, S. Hayashi, X. He, M. Heffner, T.K. Hemmick, T. Hester, J.M. Heuser, H. Hiejima, J.C. Hill, K. Hill, R. Hobbs, M. Hohlmann, R.S. Hollis, M. Holmes, W. Holzmann, K. Homma, B. Hong, T. Horaguchi, Y. Hori, D. Hornback, T. Hoshino, N. Hotvedt, J. Huang, S. Huang, M.G. Hur, T. Ichihara, R. Ichimiya, J. Ide, H. Iinuma, Y. Ikeda, K. Imai, Y. Imazu, J. Imrek, M. Inaba, Y. Inoue, A. Iordanova, D. Isenhower, L. Isenhower, M. Ishihara, A. Isinhue, T. Isobe, M. Issah, A. Isupov, Y. Ito, D. Ivanishchev, Y. Iwanaga, B.V. Jacak, M. Javani, S.J. Jeon, M. Jezghani, Z. Ji, J. Jia, X. Jiang, J. Jin, O. Jinnouchi, D. John, B.M. Johnson, T. Jones, E. Joo, K.S. Joo, V. Jorjadze, D. Jouan, D.S. Jumper, F. Kajihara, S. Kametani, N. Kamihara, J. Kamin, S. Kanda, M. Kaneta, S. Kaneti, B.H. Kang, J.H. Kang, J.S. Kang, H. Kanou, D. Kapukchyan, J. Kapustinsky, K. Karatsu, S. Karthas, M. Kasai, T. Kawagishi, D. Kawall, M. Kawashima, A.V. Kazantsev, S. Kelly, T. Kempel, J.A. Key, V. Khachatryan, P.K. Khandai, A. Khanzadeev, K. Kihara, K.M. Kijima, J. Kikuchi, A. Kim, B.I. Kim, C. Kim, D.H. Kim, D.J. Kim, E. Kim, E.-J. Kim, G.W. Kim, H.-J. Kim, H.J. Kim, K.-B. Kim, M. Kim, M.H. Kim, S.H. Kim, Y.-J. Kim, Y.K. Kim, Y.-S. Kim, B. Kimelman, D. Kincses, E. Kinney, K. Kiriluk, Á. Kiss, E. Kistenev, R. Kitamura, A. Kiyomichi, J. Klatsky, J. Klay, C. Klein-Boesing, D. Kleinjan, P. Kline, T. Koblesky, L. Kochenda, V. Kochetkov, M. Kofarago, Y. Komatsu, B. Komkov, M. Konno, J. Koster, D. Kotchetkov, D. Kotov, A. Kozlov, A. Král, A. Kravitz, F. Krizek, P.J. Kroon, J. Kubart, S. Kudo, G.J. Kunde, N. Kurihara, K. Kurita, M. Kurosawa, M.J. Kweon, Y. Kwon, G.S. Kyle, R. Lacey, Y.S. Lai, J.G. Lajoie, E.O. Lallow, D. Layton, A. Lebedev, Y. Le Bornec, S. Leckey, B. Lee, D.M. Lee, G.H. Lee, J. Lee, K. Lee, K.B. Lee, K.S. Lee, M.K. Lee, S. Lee, S.H. Lee, S.R. Lee, T. Lee, M.J. Leitch, M.A.L. Leite, M. Leitgab, E. Leitner, B. Lenzi, Y.H. Leung, B. Lewis, N.A. Lewis, X. Li, X.H. Li, P. Lichtenwalner, P. Liebing, H. Lim, S.H. Lim, L.A. Linden Levy, T. Liška, A. Litvinenko, H. Liu, L.D. Liu, M.X. Liu, V.-R. Loggins, S. Lokos, K. Lovasz, B. Love, R. Luechtenborg, D. Lynch, C.F. Maguire, T. Majoros, Y.I. Makdisi, M. Makek, M. Malaev, A. Malakhov, M.D. Malik, A. Manion, V.I. Manko, E. Mannel, Y. Mao, L. Mašek, H. Masuda, H. Masui, S. Masumoto, F. Matathias, M.C. McCain, M. McCumber, P.L. McGaughey, D. McGlinchey, C. McKinney, N. Means, A. Meles, M. Mendoza, B. Meredith, W.J. Metzger, Y. Miake, T. Mibe, J. Midori, A.C. Mignerey, D.E. Mihalik, P. Mikeš, K. Miki, A.J. Miller, T.E. Miller, A. Milov, S. Mioduszewski, D.K. Mishra, G.C. Mishra, M. Mishra, J.T. Mitchell, M. Mitrovski, G. Mitsuka, Y. Miyachi, S. Miyasaka, S. Mizuno, A.K. Mohanty, S. Mohapatra, P. Montuenga, H.J. Moon, T. Moon, Y. Morino, A. Morreale, D.P. Morrison, S.I.M. Morrow, M. Moskowitz, J.M. Moss, S. Motschwiller, T.V. Moukhanova, D. Mukhopadhyay, T. Murakami, J. Murata, A. Mwai, T. Nagae, K. Nagai, S. Nagamiya, K. Nagashima, T. Nagashima, Y. Nagata, J.L. Nagle, M. Naglis, M.I. Nagy, I. Nakagawa, H. Nakagomi, Y. Nakamiya, K.R. Nakamura, T. Nakamura, K. Nakano, S. Nam, C. Nattrass, A. Nederlof, P.K. Netrakanti, J. Newby, M. Nguyen, M. Nihashi, T. Niida, S. Nishimura, B.E. Norman, R. Nouicer, T. Novák, N. Novitzky, R. Novotny, A. Nukariya, A.S. Nyanin, J. Nystrand, C. Oakley, H. Obayashi, E. O'Brien, S.X. Oda, C.A. Ogilvie, H. Ohnishi, H. Oide, I.D. Ojha, M. Oka, K. Okada, O.O. Omiwade, Y. Onuki, J.D. Orjuela Koop, J.D. Osborn, A. Oskarsson, I. Otterlund, G.J. Ottino, M. Ouchida, K. Ozawa, R. Pak, D. Pal, A.P.T. Palounek, V. Pantuev, V. Papavassiliou, B.H. Park, I.H. Park, J. Park, J.S. Park, S. Park, S.K. Park, W.J. Park, S.F. Pate, L. Patel, M. Patel, H. Pei, J.-C. Peng, W. Peng, H. Pereira, D.V. Perepelitsa, G.D.N. Perera, V. Peresedov, D.Yu. Peressounko, C.E. PerezLara, J. Perry, R. Petti, M. Phipps, C. Pinkenburg, R. Pinson, R.P. Pisani, M. Proissl, A. Pun, M.L. Purschke, A.K. Purwar, H. Qu, P.V. Radzevich, J. Rak, A. Rakotozafindrabe, B.J. Ramson, I. Ravinovich, K.F. Read, S. Rembeczki, M. Reuter, K. Reygers, D. Reynolds, V. Riabov, Y. Riabov, E. Richardson, D. Richford, T. Rinn, N. Riveli, D. Roach, G. Roche, S.D. Rolnick, A. Romana, M. Rosati, C.A. Rosen, S.S.E. Rosendahl, P. Rosnet, Z. Rowan, J.G. Rubin, P. Rukoyatkin, J. Runchey, P. Ružička, V.L. Rykov, M.S. Ryu, S.S. Ryu, A.S. Safonov, B. Sahlmueller, N. Saito, T. Sakaguchi, S. Sakai, K. Sakashita, H. Sakata, H. Sako, V. Samsonov, M. Sano, S. Sano, M. Sarsour, H.D. Sato, K. Sato, S. Sato, T. Sato, M. Savastio, S. Sawada, B. Schaefer, B.K. Schmoll, K. Sedgwick, J. Seele, R. Seidl, Y. Sekiguchi, A.Yu. Semenov, V. Semenov, A. Sen, R. Seto, P. Sett, A. Sexton, D. Sharma, A. Shaver, T.K. Shea, I. Shein, A. Shevel, T.-A. Shibata, K. Shigaki, H.H. Shim, M. Shimomura, T. Shioya, T. Shohjoh, K. Shoji, P. Shukla, A. Sickles, C.L. Silva, D. Silvermyr, C. Silvestre, K.S. Sim, B.K. Singh, C.P. Singh, V. Singh, M.J. Skoby, M. Skolnik, S. Skutnik, M. Slunečka, K.L. Smith, W.C. Smith, M. Snowball, T. Sodre, S. Solano, A. Soldatov, R.A. Soltz, W.E. Sondheim, S.P. Sorensen, I.V. Sourikova, N.A. Sparks, F. Staley, P.W. Stankus, P. Steinberg, E. Stenlund, M. Stepanov, A. Ster, S.P. Stoll, M.R. Stone, T. Sugitate, C. Suire, A. Sukhanov, J.P. Sullivan, T. Sumita, J. Sun, S. Syed, J. Sziklai, T. Tabaru, S. Takagi, E.M. Takagui, A. Takahara, A. Takeda, A. Taketani, R. Tanabe, K.H. Tanaka, Y. Tanaka, S. Taneja, K. Tanida, M.J. Tannenbaum, S. Tarafdar, A. Taranenko, P. Tarján, G. Tarnai, E. Tennant, H. Themann, D. Thomas, T.L. Thomas, R. Tieulent, A. Timilsina, T. Todoroki, M. Togawa, A. Toia, J. Tojo, L. Tomášek, M. Tomášek, Y. Tomita, H. Torii, C.L. Towell, M. Towell, R. Towell, R.S. Towell, V.-N. Tram, I. Tserruya, Y. Tsuchimoto, T. Tsuji, S.K. Tuli, H. Tydesjö, N. Tyurin, Y. Ueda, B. Ujvari, K. Utsunomiya, C. Vale, H. Valle, H.W. van Hecke, M. Vargyas, S. Vazquez-Carson, E. Vazquez-Zambrano, A. Veicht, J. Velkovska, R. Vértesi, A.A. Vinogradov, M. Virius, B. Voas, A. Vossen, V. Vrba, N. Vukman, E. Vznuzdaev, M. Wagner, D. Walker, X.R. Wang, Z. Wang, D. Watanabe, K. Watanabe, Y. Watanabe, Y.S. Watanabe, F. Wei, R. Wei, J. Wessels, S. Whitaker, A.S. White, S.N. White, N. Willis, D. Winter, S. Wolin, C.P. Wong, J.P. Wood, C.L. Woody, R.M. Wright, M. Wysocki, B. Xia, W. Xie, C. Xu, Q. Xu, L. Xue, S. Yalcin, Y.L. Yamaguchi, H. Yamamoto, K. Yamaura, R. Yang, A. Yanovich, Z. Yasin, P. Yin, J. Ying, S. Yokkaichi, J.H. Yoo, J.S. Yoo, I. Yoon, Z. You, G.R. Young, I. Younus, H. Yu, I.E. Yushmanov, W.A. Zajc, O. Zaudtke, A. Zelenski, C. Zhang, S. Zharko, S. Zhou, J. Zimamyi, L. Zolin, and L. Zou

Subjects
Nuclear and High Energy Physics
Published
2019
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36. Unveiling the pole structure of S-matrix using deep learning

Author

Denny Lane Sombillo, Y. Ikeda, T. Sato, and A. Hosaka

Subjects
Nuclear Theory (nucl-th), High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology, Quantum Physics, High Energy Physics - Phenomenology (hep-ph), Nuclear Theory, FOS: Physical sciences, Nuclear Experiment (nucl-ex), Quantum Physics (quant-ph), Nuclear Experiment, High Energy Physics - Experiment
Abstract

Particle scattering is a powerful tool to unveil the nature of various subatomic phenomena. The key quantity is the scattering amplitude whose analytic structure carries the information of the quantum states. In this work, we demonstrate our first step attempt to extract the pole configuration of inelastic scatterings using the deep learning method. Among various problems, motivated by the recent new hadron phenomena, we develop a curriculum learning method of deep neural network to analyze coupled channel scattering problems. We show how effectively the method works to extract the pole configuration associated with resonances in the $\pi N$ scatterings., Comment: 7 pages, 3 figures, 2 tables, Added references

Published
2021

37. Overview of plasma rotation studies on the TCABR tokamak

Author

Ricardo Magnus Osorio Galvao, N B Andrade, M Y Ikeda, Michael Tendler, T Fernandes, G. P. Canal, G. Ronchi, J. H. F. Severo, Ivan Cunha Nascimento, and Magno Pinto Collares

Subjects
Nuclear physics, Physics, Tokamak, Nuclear Energy and Engineering, law, ESPECTROSCOPIA DE ABSORÇÃO ATÔMICA, Condensed Matter Physics, Spectroscopy, Plasma rotation, law.invention
Abstract

An overview of intrinsic plasma rotation studies in Ohmic L-mode discharges carried out in the Tokamak Chauffage Alfvén Brésilien (TCABR) tokamak is presented. Measurements of plasma poloidal and toroidal rotation, and a comparison against neoclassical theory, are presented. The results show that poloidal rotation is in good agreement with neoclassical theory while toroidal rotation is found to be anomalous. A new technique that allows for high temporal resolution measurements of plasma rotation is presented. This technique is used to test two models of intrinsic toroidal rotation: the so-called Helander model (Helander et al 2003 Physics of Plasmas 10 4396) and Rozhansky model (Rozhansky 2013 Perpendicular currents and electric fields in fully and partially ionized magnetized plasma Physics of Plasmas 24 101614). As TCABR is a relatively small device, the influence of the neutrals that form the basis of this model is expected to be enhanced. The results indicate that the mechanism proposed by Helander does not contribute significantly to the intrinsic toroidal rotation in TCABR plasmas. The measurements, however, indicate that the frictional force proposed by Rozhansky might be responsible for part of the intrinsic toroidal rotation observed in TCABR plasmas.

Published
2021

38. Production of π0 and η mesons in U+U collisions at sNN=192 GeV

Author

S. Y. Han, M. Gonin, A. Berdnikov, D. Kawall, Agneta Oskarsson, V. Bumazhnov, Y. Nakamiya, D. Lynch, D. Kincses, John Matthew Durham, M. Nihashi, D. Black, Hideyuki Oide, A. Sukhanov, M. Larionova, Y. Berdnikov, Dmitry Blau, K. Kurita, Y. Akiba, A. V. Kazantsev, N. Crossette, C. McKinney, S. Nagamiya, N. Novitzky, A. Meles, R. P. Pisani, Vaclav Vrba, S. Park, J. Murata, P. Sett, Alice Mignerey, D. E. Fields, C. O. Kim, L. D'Orazio, S. Miyasaka, A. Franz, R. Pak, U. Acharya, M. McCumber, B. Meredith, K. Ozawa, A. Garishvili, B. V. Jacak, E. Vazquez-Zambrano, I. Garishvili, S. Hasegawa, Y. J. Kwon, I. Shein, B. Komkov, R. A. Soltz, M. Grosse Perdekamp, G. David, L. Patel, X. Bai, F. Giordano, I. V. Sourikova, T. Hachiya, John Hill, Peter Christiansen, Z. Ji, D. Kotov, D. Yu Peressounko, X. Sun, Takao Sakaguchi, A. Ster, Takafumi Niida, J. Huang, B. Sahlmueller, E. J. Desmond, S. Nelson, Y. Sekiguchi, T. C. Awes, N. Riveli, Norio Saito, K. Sedgwick, D. S. Jumper, Henner Buesching, Y. Fukao, S. Solano, H. A. Torii, B. Kurgyis, Toru Sugitate, I. E. Yushmanov, K. B. Lee, H. Qu, A. D. Frawley, Y. J. Kim, Jason Kamin, B. M. Johnson, Mihael Makek, S. Butsyk, M. Csanad, L. Ding, Tsutomu Mibe, J. S. Kang, Charles Maguire, T. Hester, J. Seele, Peter Steinberg, M. Kofarago, Prakhar Garg, Vladimir Samsonov, B. Bannier, Animesh Datta, X. Gong, C. Y. Chi, D. Roach, A. Shaver, S. Choi, J. T. Mitchell, Y. Zhai, Christine Nattrass, M. Slunečka, S. Huang, T. Todoroki, K. M. Kijima, P. L. McGaughey, A. Pun, A. Sen, D. Larionova, M. Potekhin, François Fleuret, Alexei Khanzadeev, Sung Keun Park, A. Enokizono, Martin Purschke, V. S. Pantuev, R. Seidl, Vladislav Manko, C. A. Aidala, K. Hashimoto, R. S. Towell, Kiyoshi Tanida, L. Bichon, Xingguo Li, J. S. Kapustinsky, V. Babintsev, E. Stenlund, C. Baumann, J. B. Choi, N. N. Ajitanand, Prashant Shukla, S. F. Pate, T. Hoshino, A. Isinhue, E. Kistenev, Dipak Kumar Mishra, M. Kurosawa, M. I. Nagy, Tomofumi Nagae, B. Ujvari, G. D. N. Perera, A. Taranenko, Ke. Nakamura, D. Jouan, N. Ramasubramanian, X. Jiang, Maya Hachiya Shimomura, R. S. Hollis, S. P. Sorensen, R. Belmont, S. Wolin, Takahiro Nakamura, J. L. Nagle, D. McGlinchey, W. J. Metzger, D. Richford, Y. I. Makdisi, M. S. Ryu, S. J. Jeon, Takahiro Fusayasu, M. Leitgab, Viktor Riabov, K. Okada, Yoshifumi Ueda, J. H. Do, Qiao Xu, Brajesh K. Singh, J. A. Key, Ryugo S. Hayano, L. Zou, B. Lewis, D. Watanabe, Soumya Mohapatra, M. J. Leitch, A. Durum, Pawan Kumar Netrakanti, J. Sun, E. Vznuzdaev, D. Silvermyr, Motoi Inaba, A. Timilsina, A. Deshpande, M. Stepanov, Y. Riabov, J. Bryslawskyj, Kenta Shigaki, D. Ivanishchev, S. Baumgart, N. Apadula, Minghui Liu, T. V. Moukhanova, A. Drees, V. Papavassiliou, C. E. Perezlara, Hari Guragain, S. Mizuno, M. Moskowitz, A. Yanovich, H. W. Van Hecke, S. Whitaker, Jennifer E. Perry, A. S. Nyanin, M. J. Tannenbaum, Rachid Nouicer, A. N. Zelenski, Kenneth Francis Read, J. Hanks, T. Ichihara, Hiroyuki Sako, Sook Hyun Lee, T. Murakami, Yi Gu, B. Blankenship, M. Mendoza, J. G. Lajoie, Kensuke Homma, E. Richardson, C. L. Silva, Y. Tanaka, Y. Watanabe, V. Khachatryan, H. Asano, E. Tennant, M. S. Daugherity, C. P. Singh, I. Younus, M. Tomášek, M. Skolnik, James Alexander, Filip Krizek, N. A. Lewis, M. R. Stone, K. Nakano, S. Bathe, W. E. Sondheim, B. Azmoun, R. J. Petti, S. I. Morrow, S. Sawada, D. Firak, Byung-Sik Hong, J. Runchey, A. Bazilevsky, T. Novák, K. Boyle, C. P. Wong, M. Chiu, C. A. Ogilvie, M. Connors, W. A. Zajc, Brian Cole, Alexandre Lebedev, P. Kline, K. S. Lee, T. Majoros, T. K. Hemmick, D. M. Lee, G. H. Lee, V. Baublis, A. Denisov, Yuki Watanabe, V. Cianciolo, M. Beaumier, Sergey Fokin, D. Sharma, K. S. Joo, I. J. Choi, B. Xia, S. Esumi, Dennis Perepelitsa, Yasuo Miake, Anne Marie Sickles, K. Gainey, J. S. Bok, D. Kotchetkov, K. DeBlasio, Atsushi Takahara, K. A. Drees, J. Rak, K. O. Eyser, J. Klatsky, S. H. Lim, R. Lacey, R. Granier de Cassagnac, Jongmin Lee, K. L. Smith, P. K. Khandai, A. Taketani, Y. Ikeda, E. J. Mannel, T. Rinn, Yanjun Wu, R. Akimoto, C. Gal, K. Watanabe, C. Pinkenburg, Klaus Dehmelt, Julia Velkovska, A. Khatiwada, Z. Sun, Taku Gunji, M. Patel, M. Rosati, Tamás Csörgő, S. Tarafdar, M. Virius, E. T. Atomssa, Senta Greene, B. Fadem, E. O'Brien, Jiangyong Jia, Y. Goto, C. H. Chen, S. Yokkaichi, D. Kleinjan, S. Campbell, S. Zhou, A. Manion, R. Esha, J. H. Kang, I. Ravinovich, J. S. Haggerty, S. D. Rolnick, M. Bai, Y. S. Lai, J. D. Osborn, Inseok Yoon, Zhiying You, D. J. Kim, M. Finger, Dillon Scott Fitzgerald, V. Canoa Roman, B. Mulilo, N. Cronin, K. Shoji, Susumu Sato, S. Kanda, W. Peng, P. W. Stankus, Ajit Kumar Mohanty, T. A. Shibata, V. Borisov, N. Grau, I. Tserruya, M. Jezghani, Iu. Mitrankov, Y. Imazu, V. Singh, A. Hodges, D. Isenhower, Kenichi Imai, T. Koblesky, T. Moon, S. P. Stoll, F. Wei, Hideki Hamagaki, W. Fan, K. Aoki, M. Vargyas, K. I. Hahn, A. Glenn, P. V. Radzevich, Eunja Kim, Jen-Chieh Peng, J. E. Frantz, D. Reynolds, Inkyu Park, Xiong Wang, M. Wysocki, Sándor Lökös, K. N. Barish, Alexander Milov, I. Nakagawa, Young-Ki Kim, T. Engelmore, O. Drapier, S. Zharko, D. P. Morrison, B. H. Kang, Tatsuya Chujo, M. L. Brooks, Y. L. Yamaguchi, R. Seto, X. He, Robert Vertesi, J. Koster, C. L. Woody, A. Veicht, A. Mwai, M. Sarsour, and A. Iordanova

Subjects
Physics, Particle physics, Meson, 010308 nuclear & particles physics, 0103 physical sciences, Production (economics), 010306 general physics, 01 natural sciences
Published
2020
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39. Measurement of jet-medium interactions via direct photon-hadron correlations in Au+Au and d+Au collisions at sNN=200 GeV

Author

Atsushi Takahara, K. A. Drees, A. V. Kazantsev, C. M. Camacho, Gary Grim, R. S. Towell, Prashant Shukla, Dmitry Blau, K. V. Dharmawardane, L. Tomášek, S. F. Pate, Ke. Nakamura, P. Mikeš, Y. Nakamiya, D. Lynch, H. Al-Bataineh, J. A. Key, J. Klatsky, P. Tarján, G. Baksay, J. B. Choi, L. Patel, I. Tserruya, S. Tarafdar, J. Hanks, S. Motschwiller, D. Ivanishchev, B. Voas, V. Papavassiliou, R. S. Hollis, C. E. Perezlara, E. P. Hartouni, V. Singh, H. Asano, T. C. Awes, E. Vazquez-Zambrano, E. J. Desmond, A. Hodges, Kyoichiro Ozawa, T. Liška, Jun Kikuchi, Z. Sun, A. Yu. Semenov, M. Rosati, D. Kawall, Yuhei Morino, A. Nederlof, T. Murakami, E. M. Takagui, Eva Haslum, K. O. Eyser, Y. Onuki, Y. Imazu, Shoichi Hasegawa, S. Choi, T. Niida, S. P. Stoll, A. Sen, V. S. Pantuev, M. Sano, A. Lebedev, A. Rakotozafindrabe, Jan Rak, R. Lacey, M. Sarsour, Mate Csanad, Tomoya Tsuji, M. Mendoza, S. N. White, L. Zou, J. G. Lajoie, Deepa Thomas, K. Tanida, J. Hamblen, M. Nihashi, M. Skolnik, S. I. Morrow, S. Baumgart, S. Bathe, R. Granier de Cassagnac, Charles Maguire, Kenjiro Miki, Bruno Lenzi, N. Crossette, R. P. Pisani, Tamás Csörgő, U. Acharya, M. McCumber, P. Garg, S. Sawada, Masamichi Ishihara, A. Glenn, P. V. Radzevich, A. Ster, Y. Fukao, B. Azmoun, Y. J. Mao, M. Kawashima, Hiromi Iinuma, T. Hester, E. Kistenev, B. Ujvari, M. Kasai, N. A. Sparks, J. Ying, J. Runchey, A. Isinhue, N. Grau, H. Qu, M. Leitgab, Shuo Han, Eunja Kim, Motoi Inaba, J. C. Hill, Minghui Liu, R. M. Wright, Sung Keun Park, C. Baumann, Zvi Hirsh Citron, S. Yokkaichi, P. Lichtenwalner, Kensuke Homma, E. Richardson, Senta Greene, P. Rosnet, K. Fujiwara, H. Obayashi, Y. Tsuchimoto, A. Berdnikov, J. Newby, Hideki Hamagaki, W. Fan, K. Aoki, M. Vargyas, G. David, T. Todoroki, Y. Iwanaga, K. Das, K. Nakano, M. Heffner, Kenneth Francis Read, N. N. Ajitanand, K. Okada, Gerd Joachim Kunde, D. Richford, S. Taneja, H. Van Hecke, K. B. Kim, J. Alexander, Y. L. Yamaguchi, Frank Ellinghaus, B. Bassalleck, K. Karatsu, K. I. Hahn, B. Sahlmueller, H. A. Gustafsson, A. Král, S. Kametani, H. En'yo, Alexander Milov, I. Nakagawa, R. Luechtenborg, A. A. Vinogradov, S. P. Whitaker, A. Caringi, M. J. Leitch, I. Shein, E. Leitner, M. Patel, N. Ramasubramanian, T. Ichihara, Y. Ikeda, Takahiro Nakamura, M. Konno, H. Pei, Y. Hori, Anne Marie Sickles, H. Themann, K. Gainey, Young-Ki Kim, T. Engelmore, N. Novitzky, O. Drapier, C. P. Singh, K. Sedgwick, J. Midori, I. Younus, V. Borisov, Peter Christiansen, J. S. Bok, B. M. Johnson, P. Kline, K. S. Lee, A. Dion, E. O'Brien, Paul Constantin, M. Grosse Perdekamp, J. Huang, Bum-Hoon Lee, E. J. Mannel, T. Rinn, J. T. Mitchell, R. Seidl, G. R. Young, I. E. Yushmanov, A. Taranenko, W. E. Sondheim, E. R. Kinney, D. P. Morrison, Vladislav Manko, S. Campbell, B. H. Kang, S. Wolin, B. Blankenship, Susumu Oda, R. Akimoto, Jiangyong Jia, Y. Goto, N. Kamihara, T. Horaguchi, Mihael Makek, X. Jiang, C. Pinkenburg, N. A. Lewis, M. K. Dayananda, Aram Kim, F. Matathias, T. W. Jones, Filip Krizek, H. J. Kim, Vladimir Samsonov, Tatsuya Chujo, K. Dehmelt, S. R. P. Mohapatra, C. Zhang, A. Durum, Dillon Scott Fitzgerald, Iu. Mitrankov, T. Kempel, V. Canoa Roman, P. Chung, S. K. Park, P. Liebing, M. Wysocki, Jen-Chieh Peng, P. Ružička, A. Kiss, Byoungchoo Park, A. Isupov, B. Bannier, K. S. Sim, Christine Nattrass, A. Garishvili, J. Imrek, Y. Gu, K. Boyle, P. A. Rukoyatkin, M. Stepanov, G. Roche, P. Steinberg, D. Kleinjan, M. S. Ryu, D. Reynolds, S. Belikov, K. S. Joo, Torsten Dahms, K. Yamaura, M. Potekhin, C. Oakley, A. Drees, Henner Buesching, R. Yang, I. V. Sourikova, C. Vale, J. Sziklai, Steve Edwards, Yu. Efremenko, D. K. Mishra, Inkyu Park, A. Meles, R. A. Soltz, Ajit Kumar Mohanty, T. A. Shibata, T. Sato, Xiong Wang, B. Love, Z. Conesa del Valle, M. Naglis, T. Majoros, K. L. Smith, Takahiro Fusayasu, J. H. Kang, Y. Miyachi, Dong Jo Kim, Alexander Malakhov, K. Imai, M. Proissl, J. S. Haggerty, S. R. Lee, C. L. Silva, D. H. Kim, Brian Cole, M. S. Daugherity, Alberica Toia, D. Isenhower, T. Moon, Viktor Riabov, Z. Ji, D. Winter, Hongfang Liu, D. E. Fields, N. Apadula, X. Gong, M. Chiu, D. Yu Peressounko, Dennis Perepelitsa, Taku Gunji, H. Gong, F. Kajihara, A. Veicht, A. Basye, A. Vossen, C. A. Ogilvie, Y. Tanaka, Jihyun Bhom, Qiao Xu, Y. J. Kwon, J. M. Durham, D. Silvermyr, Eun Joo Kim, I. Garishvili, O. Dietzsch, F. Wei, Ryugo S. Hayano, A. K. Purwar, Ferdinando Giordano, S. Butsyk, Y. Komatsu, Aaron Angerami, S. Zhou, E. T. Atomssa, Yoshifumi Ueda, J. H. Do, R. Esha, R. Petti, Kisung Lee, T. K. Hemmick, Bhawani Singh, Yasuo Miake, Y. Riabov, M. Javani, S. D. Rolnick, H. Valle, Susumu Sato, B. Mulilo, Tomofumi Nagae, J. L. Nagle, Yanjun Wu, K. Watanabe, Dipanwita Dutta, Nagahiro Saito, C. P. Wong, N. Riveli, S. Esumi, Y. S. Lai, L. A. Linden Levy, D. Sharma, C. Gal, J. S. Kang, R. Ichimiya, L. S. Zolin, S. W. Nam, W. J. Park, K. DeBlasio, Christopher Rosen, L. Kochenda, M. Issah, P. Castera, Kenta Shigaki, H. J. Moon, L. Baksay, M. Nguyen, M. Connors, W. A. Zajc, Julia Velkovska, A. Khatiwada, Y. Zhai, A. Iordanova, K. Shoji, J. Ide, J. Murata, V. Baublis, Yongsun Kim, Don McGlinchey, K. Sakashita, A. G. Litvinenko, D. Firak, Martin Purschke, C. A. Aidala, W. Peng, P. W. Stankus, B. Komkov, A. Denisov, Yuki Watanabe, V. Cianciolo, D. Kotov, L. Guo, Alexei Khanzadeev, Agneta Oskarsson, D. Kincses, Shinichi Masumoto, A. Yanovich, L. Bichon, E. Stenlund, D. Kotchetkov, S. Huang, A. S. Nyanin, M. Larionova, Animesh Datta, Sergey Fokin, C. Y. Chi, Y. Berdnikov, M. Moskowitz, S. S.E. Rosendahl, Rachid Nouicer, Tsutomu Mibe, M. A. L. Leite, G. Bunce, J.-G. Park, A. N. Zelenski, Y. Watanabe, S. H. Lee, Z. Fraenkel, N. Cronin, C. Silvestre, Yasutada Akiba, C. McKinney, M. Mishra, S. Nagamiya, R. K. Choudhury, D. Hornback, D. Jouan, Vaclav Vrba, Klaus Johannes Reygers, Astrid Morreale, Rui Wei, M. Kurosawa, S. H. Lim, S. Solano, T. V. Moukhanova, R. Belmont, B. Meredith, D. Larionova, Marisilvia Donadelli, J. S. Kapustinsky, A. Adare, V. Babintsev, B. Lewis, V. Bumazhnov, D. Black, M. Tomášek, John Wood, J. P. Wessels, J. Seele, G. S. Kyle, Alice Mignerey, L. D'Orazio, S. Miyasaka, A. Franz, M. Ouchida, S. Hayashi, N. Means, J. Jin, Byung-Sik Hong, A. Bazilevsky, H. A. Torii, B. Kurgyis, Toru Sugitate, Pawan Kumar Netrakanti, X. Sun, D. M. Lee, A. Kozlov, R. Seto, K. Kiriluk, François Fleuret, Takao Sakaguchi, R. Tanabe, Jason Kamin, B. Fadem, A. D. Frawley, X. He, J. Sun, Y. Aramaki, V. Peresedov, Robert Vertesi, Barbara Jacak, Rushan Han, Wesley James Metzger, W. Holzmann, J. Koster, Maya Hachiya Shimomura, Vardan Khachatryan, Y. I. Makdisi, H. Masui, A. A. Bickley, C. L. Woody, A. Mwai, Sándor Lökös, K. N. Barish, S. Zharko, S. Sano, M. L. Brooks, M. J. Tannenbaum, E. Tennant, S. Rembeczki, S. Dairaku, M. Virius, Manabu Togawa, C. H. Chen, A. Manion, I. Ravinovich, M. Bai, E. C. Aschenauer, J. D. Osborn, Inseok Yoon, Zhiying You, R. Bennett, T. L.T. Thomas, M. Finger, J. E. Frantz, Jongmin Lee, A. Enokizono, P. K. Khandai, A. Taketani, Priyanka Sett, D. S. Jumper, Makoto Oka, K. B. Lee, S. Nelson, L. Ding, D. Roach, K. M. Kijima, A. Pun, K. Hashimoto, Xingguo Li, M. Gonin, H. Al-Ta'Ani, A. Sukhanov, K. Kurita, H. Pereira, C. O. Kim, R. Pak, S. Kaneti, S. P. Sorensen, O. Chvala, Seong H. Kim, T. Hachiya, A. Kravitz, S. V. Afanasiev, H. Sako, M. I. Nagy, D. Watanabe, Marcus Hohlmann, M. D. Malik, E. Vznuzdaev, J. Bryslawskyj, I. Danchev, Beomkyu Kim, Wei Xie, A. Deshpande, I. J. Choi, B. Xia, Tadaaki Isobe, M. Slunečka, P. L. McGaughey, Ralf Peter Averbeck, and A. Nukariya

Subjects
Quark, Physics, Photon, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Nuclear Theory, Hadron, Nuclear matter, 01 natural sciences, Nuclear physics, Deuterium, Fragmentation (mass spectrometry), 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics
Abstract

We present direct photon-hadron correlations in 200 GeV/A Au+Au, d+Au, and p+p collisions, for direct photon pT from 5–12 GeV/c, collected by the PHENIX Collaboration in the years from 2006 to 2011. We observe no significant modification of jet fragmentation in d+Au collisions, indicating that cold nuclear matter effects are small or absent. Hadrons carrying a large fraction of the quark's momentum are suppressed in Au+Au compared to p+p and d+Au. As the momentum fraction decreases, the yield of hadrons in Au+Au increases to an excess over the yield in p+p collisions. The excess is at large angles and at low hadron pT and is most pronounced for hadrons associated with lower momentum direct photons. Comparison to theoretical calculations suggests that the hadron excess arises from medium response to energy deposited by jets.

Published
2020
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40. Production of bb¯ at forward rapidity in p+p collisions at s=510 GeV

Author

Takafumi Niida, J. Huang, Prakhar Garg, A. Sen, B. Bannier, D. Lynch, M. Beaumier, Min-Hye Kim, K. S. Joo, T. Murakami, Yi Gu, R. S. Towell, Prashant Shukla, S. F. Pate, J. A. Key, D. Ivanishchev, V. Papavassiliou, C. E. Perezlara, S. I. Morrow, S. Sawada, A. Franz, J. Runchey, E. Joo, M. Stepanov, M. Potekhin, H. Nakagomi, T. Hoshino, D. Sharma, K. L. Smith, Norio Saito, A. Enokizono, R. A. Soltz, L. Zou, M. Grosse Perdekamp, Hari Guragain, J. Seele, V. Bumazhnov, D. Black, S. Esumi, J. Murata, D. Firak, M. I. Nagy, W. J. Metzger, D. Richford, Yoshifumi Ueda, J. H. Do, Minghui Liu, Kiyoshi Tanida, E. Kistenev, Sook Hyun Lee, H. Asano, D. Watanabe, J. T. Mitchell, F. Giordano, Atsushi Takahara, Alexander Milov, I. Nakagawa, Young-Ki Kim, Alexei Khanzadeev, L. Bichon, Anne Marie Sickles, E. Vznuzdaev, R. Seidl, B. Schaefer, V. S. Pantuev, D. Larionova, B. Azmoun, J. S. Bok, Vladislav Manko, D. Kawall, Kenneth Francis Read, T. A. Shibata, J. B. Choi, Maya Hachiya Shimomura, R. S. Hollis, T. Hachiya, K. A. Drees, Z. Sun, N. N. Ajitanand, G. D. N. Perera, S. Tarafdar, J. Sun, V. Babintsev, Dipak Kumar Mishra, D. H. Kim, D. P. Morrison, J. Rak, Y. I. Makdisi, Yanjun Wu, S. Park, A. J. Miller, P. Kline, A. Dion, Zvi Hirsh Citron, J. Klatsky, A. Sukhanov, K. Kurita, C. Gal, H. En'yo, N. Ramasubramanian, X. Jiang, I. Shein, Klaus Dehmelt, Julia Velkovska, C. L. Silva, A. Khatiwada, M. Virius, E. T. Atomssa, N. Feege, M. J. Leitch, Tatsuya Chujo, I. Tserruya, M. Jezghani, T. V. Moukhanova, Z. Ji, D. Yu Peressounko, K. Sedgwick, V. Singh, A. Hodges, M. Rosati, S. H. Lim, Tamás Csörgő, Mihael Makek, A. Deshpande, R. Lacey, A. Timilsina, M. J. Tannenbaum, A. Adare, Y. Riabov, B. M. Johnson, T. Koblesky, J. D. Orjuela Koop, Animesh Datta, T. Sumita, E. J. Desmond, A. Durum, J. Bryslawskyj, C. Y. Chi, M. Slunečka, P. L. McGaughey, C. H. Chen, Kenta Shigaki, M. Sarsour, F. Wei, D. Isenhower, B. K. Schmoll, C. O. Kim, T. Moon, A. Manion, B. Meredith, Xiao-yan Li, J. Hanks, Y. Watanabe, Hiroyuki Sako, A. S. Nyanin, R. Pak, I. Ravinovich, Balazs Ujvari, M. Leitgab, Rachid Nouicer, Y. J. Kwon, Jiangyong Jia, Y. Goto, A. Glenn, P. V. Radzevich, A. N. Zelenski, Kensuke Homma, S. Beckman, I. E. Yushmanov, S. Nelson, Senta Greene, Motoi Inaba, A. Meles, Eunja Kim, A. V. Kazantsev, M. Bai, M. S. Daugherity, C. P. Singh, D. Kleinjan, Mate Csanad, A. Iordanova, Alice Mignerey, T. Majoros, Jen-Chieh Peng, J. G. Rubin, A. Taranenko, S. Campbell, B. Fadem, E. O'Brien, S. Miyasaka, S. Y. Han, J. E. Frantz, C. L. Woody, A. Berdnikov, D. E. Fields, L. Ding, J. S. Kang, M. Kofarago, N. S. Bandara, Byung-Sik Hong, D. Reynolds, A. Bazilevsky, X. Sun, M. Nihashi, S. J. Jeon, J. D. Osborn, D. McGlinchey, Inseok Yoon, B. V. Jacak, D. Roach, Y. Zhai, A. Pun, Takao Sakaguchi, Vladimir Samsonov, Petr Gallus, H. J. Kim, G. David, I. J. Choi, B. Xia, L. Patel, Dennis Perepelitsa, Christine Nattrass, N. A. Lewis, Xiong Wang, R. J. Petti, Taku Gunji, T. Todoroki, M. Finger, Alexandre Lebedev, Y. Ikeda, A. D. Frawley, K. Ozawa, N. Novitzky, N. Riveli, R. P. Pisani, M. Towell, Brajesh K. Singh, T. C. Awes, M. Patel, I. V. Sourikova, Viktor Riabov, K. B. Lee, U. Acharya, Serpil Yalcin, S. Huang, J. Sziklai, M. McCumber, S. P. Sorensen, E. J. Mannel, M. Wysocki, T. Rinn, A. Taketani, C. P. Wong, J. G. Lajoie, M. Alfred, S. Whitaker, Jennifer E. Perry, M. Connors, W. A. Zajc, L. Xue, R. Akimoto, R. Esha, A. Denisov, Yuki Watanabe, C. Pinkenburg, S. D. Rolnick, M. Kurosawa, Sergey Fokin, D. J. Kim, J. H. Kang, J. S. Haggerty, J. L. Nagle, Dillon Scott Fitzgerald, V. Canoa Roman, R. Belmont, Susumu Sato, Y. Imazu, Kenichi Imai, Sándor Lökös, K. N. Barish, S. Zharko, Hideki Hamagaki, W. Fan, M. Vargyas, K. I. Hahn, P. Montuenga, V. Borisov, N. Grau, M. L. Brooks, Iu. Mitrankov, Y. L. Yamaguchi, B. Mulilo, M. Tomášek, W. Peng, P. W. Stankus, A. Sexton, R. Seto, X. He, Y. Aramaki, J. Koster, A. Mwai, D. Kotov, D. S. Jumper, S. P. Stoll, D. Jouan, S. Wolin, N. Apadula, A. Drees, S. Bathe, M. Chiu, C. A. Ogilvie, T. K. Hemmick, Yasuo Miake, K. DeBlasio, R. Pinson, Martin Purschke, C. A. Aidala, Pawan Kumar Netrakanti, V. Khachatryan, S. Hasegawa, Henner Buesching, I. Younus, Agneta Oskarsson, D. Kincses, John Matthew Durham, M. Larionova, Y. Berdnikov, Y. Akiba, C. McKinney, S. Nagamiya, Vaclav Vrba, S. Mizuno, H. W. Van Hecke, B. Blankenship, K. Kihara, Qiao Xu, D. Silvermyr, A. Yanovich, Z. Rowan, M. Mendoza, H. Ge, K. Nakano, W. E. Sondheim, K. Boyle, John Hill, H. A. Torii, B. Kurgyis, Toru Sugitate, and P. Sett

Subjects
Quantum chromodynamics, Physics, Particle physics, Muon, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Order (ring theory), 01 natural sciences, Gluon, 0103 physical sciences, High Energy Physics::Experiment, Production (computer science), Rapidity, PHENIX detector, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract

The cross section of bottom quark-antiquark ($b\bar{b}$) production in $p$+$p$ collisions at $\sqrt{s}=510$ GeV is measured with the PHENIX detector at the Relativistic Heavy Ion Collider. The results are based on the yield of high mass, like-sign muon pairs measured within the PHENIX muon arm acceptance ($1.2 1$ GeV/$c$, and dimuon mass of 5--10 GeV/$c^2$. The extrapolated total cross section at this energy for $b\bar{b}$ production is $13.1 \pm 0.6~(\mbox{stat}) \pm 1.5~(\mbox{syst}) \pm 2.7~(\mbox{global})~\mu$b. The total cross section is compared to a perturbative quantum chromodynamics calculation and is consistent within uncertainties. The azimuthal opening angle between muon pairs from $b\bar{b}$ decays and their $p_T$ distributions are compared to distributions generated using {\sc ps pythia 6}, which includes next-to-leading order processes. The azimuthal correlations and pair $p_T$ distribution are not very well described by {\sc pythia} calculations, but are still consistent within uncertainties. Flavor creation and flavor excitation subprocesses are favored over gluon splitting.

Published
2020
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41. Clinical significance of left atrial geometry in patients with dilated cardiomyopathy: a cardiovascular magnetic resonance study

Author

Takeru Nabeta, Teppei Fujita, Y. Ikeda, Mayu Yazaki, Takashi Naruke, Kenji Maemura, Syunsuke Ishii, Takumi Oki, Jyunya Ako, and Takayuki Inomata

Subjects
medicine.medical_specialty, business.industry, Left atrial, Internal medicine, medicine, Magnetic resonance study, Cardiology, In patient, Clinical significance, Dilated cardiomyopathy, Cardiology and Cardiovascular Medicine, business, medicine.disease
Abstract

Background Left atrial (LA) enlargement is associated with cardiac events in patients with dilated cardiomyopathy (DCM). However, the clinical significance of LA function and geometry in patients with DCM remains uncertain. Cardiac magnetic resonance (CMR) is the current gold standard modality to assess LA function and geometry. Purpose The aim of the present study was to investigate the clinical significance of LA parameters assessed by CMR in patients with DCM. Methods The present study included patients with DCM and sinus rhythm who underwent CMR between December 2007 and April 2018. LA volume was measured using CMR. LA empty fraction was calculated according to LA volume differences. The LA sphericity index was computed as the ratio of the measured LA maximum volume to the volume of a sphere with maximum LA length diameter (Figure 1A). We investigated the relationship between LA parameters measured by CMR and hospitalization for heart failure (HF). Results We included 255 patients in this study. During the mean follow-up of 3.66 [1.85–6.25] years, hospitalization for HF occurred in 37 patients (14.5%). Although there were no significant differences in LA volume and LA empty fraction between patients with HF hospitalization and those without, LA sphericity index was significantly higher in patients with HF hospitalization than in those without (0.78±0.35 vs. 0.58±0.18, P Conclusions LA sphericity index was an independent predictor of hospitalization for HF. Assessment of LA geometric parameter including LA sphericity might be useful for risk stratification toward worsening HF in patients with DCM. Figure 1 Funding Acknowledgement Type of funding source: None

Published
2020
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42. Prognostic implications of late gadolinium enhancement for re-worsening left ventricular ejection fraction in patients with dilated cardiomyopathy: a longitudinal study of left ventricular function

Author

Takeru Nabeta, Mayu Yazaki, Teppei Fujita, Kenji Maemura, Takayuki Inomata, Jyunya Ako, Y. Ikeda, Syunsuke Ishii, Takumi Oki, and Takashi Naruke

Subjects
Longitudinal study, medicine.medical_specialty, Ejection fraction, Ventricular function, business.industry, Dilated cardiomyopathy, medicine.disease, Internal medicine, cardiovascular system, medicine, Cardiology, Late gadolinium enhancement, In patient, cardiovascular diseases, Cardiology and Cardiovascular Medicine, business, circulatory and respiratory physiology
Abstract

Background Re-worsening left ventricular ejection fraction (LVEF) after initial recovery occurs in some patients with dilated cardiomyopathy (DCM). However, prevalence and predictors of re-worsening LVEF in longitudinal follow-up are unclear. Late gadolinium enhancement of cardiovascular magnetic resonance (LGE-CMR) can evaluate the damage of myocardial tissue. Purpose This study sought to evaluate the clinical parameters including LGE-CMR to predict re-worsening LVEF in patients with recent-onset DCM. Methods We included patients with recent-onset DCM who had an LVEF 5% LVEF from baseline and had an LVEF≥45% after medical therapy. Patients were divided into three groups: (1) Improved: defined as those with sustained LVEF ≥45% after initial LVEF recovery; (2) Re-worse: those with decreased >5% and had an LVEF Results Of 138 patents, 82 patients (59%) were the Improved group, 42 patients (30%) were the Re-worse group, and 14 (10%) were the Not-improved group. Loess curves of long-term LVEF trajectories showed that LVEF in the Re-worse group increased first 2 years and declined slowly thereafter (Fig. 1A). Re-worsening LVEF occurred 4.5±2.2 years after initial LVEF recovery. Multivariate logistic regression analysis demonstrated that LGE area at baseline (Odds ratio: 1.09, 95% confidence interval (CI) 1.02–1.18, p=0.014) and Log brain natriuretic peptide (BNP) at initial LVEF recovery (Odds ratio: 1.53, 95% confidence interval (CI) 1.01–2.31, p=0.042) were independent predictors for Re-worsening LVEF. Kaplan Meier analysis demonstrated that the risk of cardiac events in the Re-worse group was significantly higher (hazard ratio: 3.93, 95% CI 1.49–10.36, p=0.006) than in the Improved group and lower risk than in the Not-improved group (hazard ratio: 0.28, 95% CI 0.12–0.62, p=0.002) (Fig. 1B). Conclusion Re-worsening LVEF occurred in 30% of patients in patients with recent-onset DCM. LGE area and BNP at initial LVEF recovery were independently associated with re-worsening LVEF after initial LVEF recovery. Figure 1 Funding Acknowledgement Type of funding source: None

Published
2020
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43. Polarization and cross section of midrapidity J/ψ production in p+p collisions at s=510 GeV

Author

A. J. Miller, Martin Purschke, C. A. Aidala, Y. Imazu, Y. J. Kwon, J. Seele, A. Sukhanov, K. Kurita, T. Murakami, Yi Gu, S. I. Morrow, S. Sawada, J. Runchey, M. Potekhin, M. S. Daugherity, C. P. Singh, N. A. Lewis, R. J. Petti, S. Mizuno, Pawan Kumar Netrakanti, Kenichi Imai, J. S. Kang, Y. Zhai, V. Khachatryan, Dillon Scott Fitzgerald, V. Canoa Roman, C. O. Kim, R. Pak, A. Enokizono, D. Kotov, D. S. Jumper, S. H. Lim, J. Sziklai, Kiyoshi Tanida, M. Slunečka, B. Azmoun, Susumu Sato, Atsushi Takahara, K. A. Drees, H. W. Van Hecke, P. L. McGaughey, J. Klatsky, Jen-Chieh Peng, J. G. Rubin, Hideki Hamagaki, W. Fan, M. Vargyas, H. Nakagomi, T. Hoshino, B. Blankenship, E. Joo, M. Stepanov, K. I. Hahn, Hari Guragain, E. Kistenev, J. H. Kang, J. E. Frantz, J. S. Haggerty, Sook Hyun Lee, P. Kline, A. Dion, Z. Rowan, M. Mendoza, H. Asano, Maya Hachiya Shimomura, R. S. Hollis, B. Ujvari, B. Mulilo, J. G. Lajoie, I. J. Choi, D. Reynolds, B. Xia, S. Beckman, Dennis Perepelitsa, Y. I. Makdisi, M. Beaumier, M. Towell, K. S. Joo, D. Jouan, M. Tomášek, H. Ge, D. Richford, Y. Riabov, J. Bryslawskyj, K. Nakano, W. Peng, N. N. Ajitanand, P. W. Stankus, Kenta Shigaki, M. J. Tannenbaum, W. E. Sondheim, R. S. Towell, G. D. N. Perera, Yoshifumi Ueda, J. H. Do, J. Sun, Viktor Riabov, B. K. Schmoll, A. Taketani, V. Bumazhnov, D. Black, Xiong Wang, S. Esumi, K. Boyle, N. Feege, X. He, Animesh Datta, T. Sumita, C. Y. Chi, A. S. Nyanin, A. Durum, B. M. Johnson, Dong Jo Kim, Rachid Nouicer, A. N. Zelenski, Alice Mignerey, A. Taranenko, S. Miyasaka, A. Franz, S. J. Jeon, Brajesh K. Singh, X. Sun, A. Deshpande, Y. Aramaki, A. Meles, Takao Sakaguchi, D. E. Fields, T. Majoros, S. P. Sorensen, B. V. Jacak, A. D. Frawley, N. Riveli, K. B. Lee, S. Huang, Wesley James Metzger, J. Koster, M. Kurosawa, C. L. Silva, R. Belmont, Serpil Yalcin, C. P. Wong, S. Wolin, M. Wysocki, M. Alfred, S. Whitaker, M. Connors, W. A. Zajc, L. Xue, D. Sharma, A. Denisov, Yuki Watanabe, M. I. Nagy, Jennifer E. Perry, I. Tserruya, I. Ravinovich, Sergey Fokin, D. Watanabe, S. Hasegawa, Y. Watanabe, Anne Marie Sickles, M. Jezghani, D. Lynch, B. Schaefer, E. Vznuzdaev, Y. Ikeda, J. S. Bok, E. J. Mannel, T. Rinn, M. Bai, T. A. Shibata, B. Meredith, V. Singh, A. Hodges, C. L. Woody, Jan Rak, N. S. Bandara, R. Lacey, A. Mwai, A. Adare, Vladimir Samsonov, Henner Buesching, Christine Nattrass, T. Todoroki, J. D. Osborn, D. Isenhower, T. Moon, T. Koblesky, Inseok Yoon, John Hill, H. A. Torii, B. Kurgyis, S. P. Stoll, F. Wei, E. J. Desmond, Taku Gunji, Toru Sugitate, S. Nelson, J. L. Nagle, M. Patel, M. Finger, A. Berdnikov, R. Esha, S. D. Rolnick, L. Ding, M. Kofarago, D. Roach, A. Pun, K. Kihara, Qiao Xu, M. Virius, E. T. Atomssa, Petr Gallus, A. Glenn, P. V. Radzevich, D. Silvermyr, J. T. Mitchell, R. Seidl, Vladislav Manko, I. Younus, Eunja Kim, A. Yanovich, K. Ozawa, I. V. Sourikova, J. D. Orjuela Koop, Agneta Oskarsson, A. Timilsina, C. H. Chen, D. Kincses, John Matthew Durham, Kensuke Homma, M. Larionova, Y. Berdnikov, Y. Akiba, A. Manion, C. McKinney, S. Nagamiya, Vaclav Vrba, L. Zou, K. L. Smith, Y. L. Yamaguchi, Alexander Milov, Minghui Liu, I. Nakagawa, Young-Ki Kim, Prashant Shukla, Kenneth Francis Read, S. F. Pate, D. McGlinchey, J. A. Key, D. Ivanishchev, V. Papavassiliou, C. E. Perezlara, H. J. Kim, D. P. Morrison, A. Sexton, P. Sett, Takafumi Niida, J. Huang, Prakhar Garg, B. Bannier, R. Seto, A. V. Kazantsev, Yanjun Wu, Tatsuya Chujo, I. E. Yushmanov, C. Gal, Sándor Lökös, K. N. Barish, S. Zharko, Min-Hye Kim, Klaus Dehmelt, Senta Greene, Julia Velkovska, A. Khatiwada, D. Kawall, M. Rosati, Tamás Csörgő, M. L. Brooks, S. Park, J. Murata, Zvi Hirsh Citron, I. Shein, G. David, L. Patel, B. Fadem, E. O'Brien, K. Sedgwick, T. C. Awes, Mihael Makek, Jiangyong Jia, Y. Goto, D. Kleinjan, S. Campbell, D. Firak, R. A. Soltz, M. Grosse Perdekamp, F. Giordano, Alexei Khanzadeev, T. Hachiya, L. Bichon, J. B. Choi, Z. Ji, D. Yu Peressounko, Dipak Kumar Mishra, D. H. Kim, R. Akimoto, N. Apadula, C. Pinkenburg, A. Drees, T. V. Moukhanova, Z. Sun, S. Tarafdar, M. Leitgab, Motoi Inaba, A. Sen, V. S. Pantuev, S. Bathe, M. Chiu, M. Sarsour, C. A. Ogilvie, Mate Csanad, A. Iordanova, S. Y. Han, T. K. Hemmick, Yasuo Miake, K. DeBlasio, M. Nihashi, R. Pinson, Byung-Sik Hong, A. Bazilevsky, P. Montuenga, N. Novitzky, R. P. Pisani, V. Borisov, N. Grau, U. Acharya, M. McCumber, Iu. Mitrankov, H. En'yo, Alexandre Lebedev, M. J. Leitch, N. Ramasubramanian, X. Jiang, Xiao-yan Li, J. Hanks, Hiroyuki Sako, Norio Saito, D. Larionova, and V. Babintsev

Subjects
Quantum chromodynamics, Physics, Range (particle radiation), 010308 nuclear & particles physics, Nuclear Theory, Polarization (waves), 01 natural sciences, 7. Clean energy, Nuclear physics, Cross section (physics), 0103 physical sciences, Transverse momentum, Rapidity, Nuclear Experiment, 010306 general physics, Spin-½
Abstract

The PHENIX experiment has measured the spin alignment for inclusive J/ψ→e+e- decays in proton-proton collisions at s=510 GeV at midrapidity. The angular distributions have been measured in three different polarization frames, and the three decay angular coefficients have been extracted in a full two-dimensional analysis. Previously, PHENIX saw large longitudinal net polarization at forward rapidity at the same collision energy. This analysis at midrapidity, complementary to the previous PHENIX results, sees no sizable polarization in the measured transverse momentum range of 0.0

Published
2020
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44. Measurement of charged pion double spin asymmetries at midrapidity in longitudinally polarized p+p collisions at s=510 GeV

Author

Alice Mignerey, S. Miyasaka, Roli Esha, Shoichi Hasegawa, Pawan Kumar Netrakanti, Anne Marie Sickles, X. Sun, B. Meredith, Takao Sakaguchi, Y. Imazu, Shota Suzuki, Alexei Khanzadeev, J. S. Bok, A. Sen, N. Feege, S. Ishimaru, D. Lynch, A. D. Frawley, S. Huang, E. Kistenev, H. A. Torii, B. Kurgyis, Toru Sugitate, J. Sun, Mate Csanad, Sándor Lökös, K. N. Barish, N. N. Ajitanand, T. O. S. Haseler, M. Kurosawa, S. Zharko, J. H. Yoo, M. Slunečka, P. L. McGaughey, G. D. N. Perera, K. B. Lee, X. He, M. Potekhin, Y. Aramaki, M. L. Brooks, J. Koster, E. Joo, A. Mwai, Maya Hachiya Shimomura, Vardan Khachatryan, J. Bryslawskyj, S. Nelson, B. Azmoun, M. Nihashi, Hideki Hamagaki, W. Fan, M. Vargyas, R. A. Soltz, G. David, T. Todoroki, K. I. Hahn, H. Nakagomi, T. Hoshino, Y. I. Makdisi, M. Rosati, C. L. Silva, D. H. Kim, T. V. Moukhanova, Hari Guragain, S. Beckman, E. Mannel, I. Tserruya, A. Deshpande, A. Sexton, W. J. Metzger, R. Seto, M. Jezghani, S. Bathe, T. W. Danley, V. S. Pantuev, K. Kihara, Tamás Csörgő, Qiao Xu, B. Mulilo, A. Durum, S. Tarafdar, L. Ding, E. J. Desmond, B. Fadem, I. J. Choi, B. Xia, M. Kofarago, D. Roach, Viktor Riabov, J. M. Durham, V. Singh, A. Hodges, Yoshifumi Ueda, J. H. Do, R. P. Pisani, P. Kline, M. Towell, D. Silvermyr, Susumu Sato, A. Dion, A. Pun, H. Asano, Jan Rak, L. Zou, R. Lacey, M. J. Tannenbaum, Ajeeta Khatiwada, T. Koblesky, D. Kawall, U. Acharya, Kensuke Homma, A. Meles, Yongsun Kim, W. Peng, V. Bumazhnov, T. Murakami, A. Yanovich, Timothy Thomas Rinn, H. J. Kim, K. Tanida, M. I. Nagy, Kimberly Hill, M. Sarsour, Z. Rowan, P. W. Stankus, J. Hanks, M. Mendoza, Xingguo Li, S. P. Whitaker, C. L. Woody, D. Watanabe, D. Black, B. K. Schmoll, E. Vznuzdaev, R. Nishitani, C. P. Singh, Jiangyong Jia, Zvi Hirsh Citron, A. Berdnikov, Martin Purschke, C. A. Aidala, D. E. Fields, Y. Goto, M. Patel, N. Ramasubramanian, Minghui Liu, B. M. Johnson, H. Ge, K. Nakano, Y. H. Leung, H. Sako, I. Shein, W. E. Sondheim, A. Glenn, P. V. Radzevich, S. P. Sorensen, I. E. Yushmanov, Eunja Kim, H. En'yo, K. Sedgwick, M. McCumber, Mihael Makek, K. Boyle, M. J. Leitch, D. Kleinjan, N. Riveli, Min-Hye Kim, P. Montuenga, X. Jiang, C. Y. Scarlett, M. Beaumier, J. Sziklai, Kenneth Francis Read, E. A. Gamez, K. S. Joo, J. G. Lajoie, I. Younus, Alexander Milov, I. Nakagawa, Serpil Yalcin, R. S. Towell, D. K. Mishra, J. G. Rubin, M. Alfred, T. Hachiya, Y. Watanabe, N. Apadula, Barbara Jacak, N. Novitzky, Jennifer E. Perry, Iu. Mitrankov, F. Wei, K. L. Smith, C. P. Wong, R. Petti, N. S. Bandara, Y. J. Kwon, Y. Gu, A. J. Miller, A. Iordanova, J. Murata, N. Grau, Vladimir Samsonov, D. P. Morrison, Petr Gallus, S. Campbell, S. Esumi, D. Sharma, W. A. Zajc, L. Xue, A. Sukhanov, K. Kurita, Christine Nattrass, J. T. Mitchell, M. Leitgab, Shuo Han, A. Denisov, Yuki Watanabe, Agneta Oskarsson, S. I. Morrow, Tatsuya Chujo, K. Dehmelt, Animesh Datta, T. Sumita, A. Taranenko, C. O. Kim, R. Pak, C. Y. Chi, Motoi Inaba, J. C. Hill, E. T. Atomssa, Sergey Fokin, Jen-Chieh Peng, A. V. Kazantsev, J. S. Kang, S. J. Jeon, Yanjun Wu, Balazs Ujvari, C. Gal, Y. Zhai, D. Reynolds, Julia Velkovska, R. Seidl, D. Kincses, Vladislav Manko, J. L. Nagle, Xiong Wang, S. Sawada, A. Franz, J. Runchey, T. Majoros, M. S. Daugherity, Dong Jo Kim, K. Imai, Y. Berdnikov, I. V. Sourikova, Ferdinando Giordano, S. H. Lee, Y. Akiba, C. McKinney, M. Tomášek, Brennan Schaefer, S. Nagamiya, L. Patel, A. Timilsina, T. C. Awes, Kyoichiro Ozawa, Byung-Sik Hong, A. Bazilevsky, Vaclav Vrba, J. Huang, H. W. Yu, J. Seele, Prakhar Garg, M. Wysocki, B. Bannier, N. A. Lewis, Norio Saito, Prashant Shukla, S. H. Lim, S. F. Pate, Henner Buesching, V. Babintsev, J. A. Key, D. Ivanishchev, Y. Riabov, V. Papavassiliou, C. E. Perezlara, Kenta Shigaki, A. S. Nyanin, C. A. Ogilvie, Rachid Nouicer, T. K. Hemmick, Bhawani Singh, A. N. Zelenski, Y. L. Yamaguchi, Yasuo Miake, S. Mizuno, K. DeBlasio, R. Pinson, Don McGlinchey, S. Wolin, A. Drees, D. Kotov, S. P. Stoll, D. Jouan, Atsushi Takahara, K. A. Drees, J. Klatsky, J. B. Choi, R. S. Hollis, G. Mitsuka, A. Adare, J. E. Frantz, A. Enokizono, A. Taketani, Priyanka Sett, D. S. Jumper, Z. Sun, T. Niida, M. Chiu, T. A. Shibata, A. Lebedev, I. Ravinovich, D. Isenhower, Tamas Novak, T. Moon, R. Belmont, Senta Greene, M. Bai, E. O'Brien, H. Van Hecke, M. Grosse Perdekamp, Y. Ikeda, M. E. Connors, S. K. Park, Taku Gunji, R. Akimoto, Z. Ji, D. Yu Peressounko, Dennis Perepelitsa, C. Pinkenburg, J. D. Osborn, Inseok Yoon, Zirui Wang, M. Finger, M. Stepanov, J. H. Kang, J. S. Haggerty, M. Virius, J. D. Orjuela Koop, C. H. Chen, A. Manion, S. D. Rolnick, Dillon Scott Fitzgerald, Kei Nagashima, V. Canoa Roman, Raphael Noel Tieulent, and D. Richford

Subjects
Quantum chromodynamics, Physics, 010308 nuclear & particles physics, Scattering, High Energy Physics::Lattice, High Energy Physics::Phenomenology, Nuclear Theory, Parton, Deep inelastic scattering, 7. Clean energy, 01 natural sciences, Gluon, Nuclear physics, Pion, 0103 physical sciences, Proton spin crisis, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract

The PHENIX experiment at the Relativistic Heavy Ion Collider has measured the longitudinal double spin asymmetries, $A_{LL}$, for charged pions at midrapidity ($|\eta

Published
2020
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45. Erratum: Evolution of π0 Suppression in Au+Au Collisions from sNN=39 to 200 GeV [Phys. Rev. Lett. 109 , 152301 (2012)]

Author

X. Jiang, H. Pei, S. Taneja, K. Karatsu, H. J. Kim, Y. Hori, Anne Marie Sickles, H. Themann, K. Gainey, M. S. Daugherity, Y. L. Yamaguchi, Y. Komatsu, Mate Csanad, I. Ravinovich, Marisilvia Donadelli, V. Bumazhnov, M. Nihashi, B. Komkov, K. B. Lee, I. Younus, Peter Christiansen, N. N. Ajitanand, X. He, Y. Aramaki, V. Peresedov, Robert Vertesi, K. S. Sim, J. Koster, M. Bai, E. C. Aschenauer, Barbara Jacak, L. Ding, T. Kempel, Takahiro Nakamura, Alice Mignerey, L. D'Orazio, R. P. Pisani, R. Yang, Vladimir Samsonov, Norio Saito, Tsutomu Mibe, M. A. L. Leite, S. H. Lim, E. J. Desmond, D. Roach, K. M. Kijima, S. Bathe, Kensuke Homma, E. Richardson, Y. Tanaka, E. Mannel, Hiromi Iinuma, Senta Greene, A. Durum, S. Miyasaka, A. Ster, Christine Nattrass, J. S. Kapustinsky, V. Babintsev, M. Javani, L. Guo, Alexei Khanzadeev, Y. J. Kwon, C. P. Singh, Zhiying You, Agneta Oskarsson, B. Azmoun, Y. Berdnikov, S. H. Lee, Y. Akiba, M. Finger, K. Hashimoto, K. O. Eyser, Tomoya Tsuji, S. Dairaku, M. Tomášek, G. S. Kyle, B. Bassalleck, H. Qu, H. J. Moon, E. O'Brien, B. M. Johnson, Filip Krizek, Takao Sakaguchi, A. Sen, A. D. Frawley, S. V. Afanasiev, Yu. Efremenko, J. H. Kang, Y. Miyachi, J. S. Haggerty, S. R. Lee, Shinichi Masumoto, E. Stenlund, S. Huang, Aaron Angerami, J. S. Kang, R. A. Soltz, Tomofumi Nagae, R. Lacey, J. L. Nagle, P. Castera, M. Mendoza, S. N. White, Hideki Hamagaki, K. Aoki, M. Vargyas, G. David, T. Todoroki, K. I. Hahn, A. Isupov, M. Virius, S. Choi, C. L. Silva, Y. Nakamiya, Byung-Sik Hong, A. Bazilevsky, J. Sziklai, C. McKinney, S. Nagamiya, A. Taranenko, Atsushi Takahara, Y. Fukao, Vaclav Vrba, R. Granier de Cassagnac, W. A. Zajc, J. Sun, A. Adare, Charles Maguire, M. Gonin, M. Grosse Perdekamp, Brian Cole, E. Kistenev, D. E. Fields, D. M. Lee, R. S. Towell, T. Horaguchi, K. A. Drees, V. Baublis, O. Dietzsch, J. M. Durham, T. Hester, V. S. Pantuev, A. Denisov, Yuki Watanabe, M. Sano, V. Cianciolo, M. E. Connors, C. H. Chen, K. Watanabe, S. K. Park, K. Shoji, I. Garishvili, F. Wei, S. Baumgart, Y. S. Lai, M. McCumber, Maya Hachiya Shimomura, J. Rak, E. T. Atomssa, Rui Wei, A. Manion, Sergey Fokin, J. Klatsky, Yongsun Kim, T. V. Moukhanova, P. W. Stankus, S. Tarafdar, A. Sukhanov, D. Kawall, K. Kurita, Dmitry Blau, H. Pereira, K. Nakano, K. B. Kim, W. E. Sondheim, P. Kline, J. T. Mitchell, K. S. Lee, J. E. Frantz, D. Ivanischev, Minghui Liu, Ryugo S. Hayano, H. Asano, J. B. Choi, C. Gal, Julia Velkovska, K. Tanida, Jongmin Lee, M. Proissl, D. Winter, D. Yu Peressounko, Eva Haslum, K. Okada, Animesh Datta, J. Hanks, C. Y. Chi, A. Lebedev, A. Dion, J. Imrek, R. Seidl, Y. I. Makdisi, Vladislav Manko, M. Rosati, Tamás Csörgő, E. Vazquez-Zambrano, Kenneth Francis Read, J. Alexander, A. Nederlof, A. Enokizono, Beomkyu Kim, K. Boyle, P. A. Rukoyatkin, B. Sahlmueller, Zvi Hirsh Citron, T. Ichihara, H. A. Gustafsson, Gerd Joachim Kunde, M. Kurosawa, M. J. Leitch, C. O. Kim, A. Deshpande, A. Taketani, R. Belmont, S. Yokkaichi, Y. Riabov, C. A. Ogilvie, R. S. Hollis, M. Kasai, B. Meredith, R. Pak, Y. Tsuchimoto, T. K. Hemmick, Bhawani Singh, Kenta Shigaki, Yasuo Miake, I. Shein, B. Lewis, I. J. Choi, A. Kiss, H. Van Hecke, C. Vale, Jiangyong Jia, Henner Buesching, Y. Goto, Steve Edwards, Y. Ikeda, M. J. Tannenbaum, N. Grau, I. E. Yushmanov, M. Leitgab, K. Sedgwick, H. A. Torii, M. Slunečka, Mihael Makek, S. Kaneti, S. P. Sorensen, Toru Sugitate, Viktor Riabov, K. S. Joo, D. K. Mishra, D. Kleinjan, P. L. McGaughey, Motoi Inaba, J. C. Hill, X. Gong, R. Akimoto, K. V. Dharmawardane, A. S. Nyanin, François Fleuret, Jason Kamin, M. I. Nagy, A. V. Kazantsev, X. Bing, O. Chvala, E. Tennant, N. Apadula, Y. Watanabe, Takahiro Fusayasu, Rachid Nouicer, D. Watanabe, L. A. Linden Levy, A. N. Zelenski, C. Pinkenburg, L. Tomášek, Alexander Malakhov, M. Stepanov, G. Roche, A. Vossen, R. Petti, D. Silvermyr, E. Vznuzdaev, L. S. Zolin, M. Chiu, Ajit Kumar Mohanty, T. A. Shibata, L. Patel, A. Yanovich, S. Esumi, A. Iordanova, T. C. Awes, Kyoichiro Ozawa, D. Sharma, J. G. Lajoie, M. Soumya, T. Hachiya, J. Murata, Martin Purschke, C. A. Aidala, C. L. Woody, A. Berdnikov, D. Kotchetkov, R. K. Choudhury, A. Garishvili, I. V. Sourikova, D. Isenhower, M. Ouchida, Taku Gunji, S. Butsyk, S. D. Rolnick, Prashant Shukla, S. F. Pate, Ke. Nakamura, S. Motschwiller, V. Papavassiliou, A. Král, Alexander Milov, I. Nakagawa, Young-Ki Kim, T. Engelmore, N. Novitzky, O. Drapier, B. Love, A. G. Litvinenko, Bum-Hoon Lee, E. R. Kinney, D. P. Morrison, S. Campbell, B. H. Kang, R. Seto, M. Wysocki, B. Bannier, B. Fadem, H. Al-Ta'Ani, Tatsuya Chujo, T. Murakami, E. M. Takagui, M. Issah, I. Tserruya, K. N. Barish, Don McGlinchey, M. L. Brooks, V. Singh, D. Kotov, S. Sawada, J. Ying, A. Franz, M. Sarsour, R. Reynolds, S. P. Stoll, A. Glenn, Eunja Kim, Jen-Chieh Peng, D. Jouan, S. Wolin, Inkyu Park, Xiong Wang, Byoungchoo Park, Dong Jo Kim, A. Drees, and A. Veicht

Subjects
Nuclear physics, Physics, Published Erratum, General Physics and Astronomy
Published
2020
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46. J/ψ and ψ(2S) production at forward rapidity in p+p collisions at s=510 GeV

Author

E. Mannel, H. Nakagomi, T. Hoshino, D. H. Kim, W. J. Metzger, J. M. Durham, Yoshifumi Ueda, J. H. Do, M. Patel, Z. Sun, Alexei Khanzadeev, N. Ramasubramanian, A. D. Frawley, X. Jiang, W.A. Zajc, J. Huang, L. Zou, A. C. Mignerey, V. Bumazhnov, D. Black, S. Tarafdar, T. Sugitate, S. Huang, Prakhar Garg, J. Seele, J. S. Haggerty, A. Meles, M. Alfred, M. Wysocki, B. Bannier, M. Virius, W.E. Sondheim, M. Inaba, Tamás Csörgő, T-A Shibata, S. P. Whitaker, Jiangyong Jia, Y. Goto, S. F. Pate, E. J. Kim, E. Kistenev, S. L. Fokin, C. Kim, D. Kleinjan, M. S. Daugherity, K. L. Smith, R. Lacey, K. Dehmelt, S. Park, Ferdinando Giordano, J. H. Kang, V. S. Pantuev, M. Kim, Kenneth Francis Read, E. T. Atomssa, Yanjun Wu, C. Gal, A. Adare, B. V. Jacak, M. McCumber, Julia Velkovska, R. Nishitani, N. Feege, P. L. McGaughey, Bhartendu K. Singh, M. Tomášek, E. A. Gamez, S. P. Stoll, I. Shein, Jen-Chieh Peng, R. Petti, Ajeeta Khatiwada, A. J. Miller, D. Reynolds, T. Niida, Xiong Wang, Kimberly Hill, Ki-Bum Lee, Mihael Makek, M. Finger, Y. Riabov, N. S. Bandara, A. Denisov, Maya Hachiya Shimomura, R. S. Hollis, E. O'Brien, S. I. Morrow, S. Sawada, A. Deshpande, Dong Jo Kim, B. Azmoun, Y. H. Leung, Vladimir Samsonov, N. Riveli, H. W. Yu, Dillon Scott Fitzgerald, J. Runchey, Kei Nagashima, T. V. Moukhanova, Y. Aramaki, V. Canoa Roman, M. Kurosawa, H. Hamagaki, T. Todoroki, A. Bazilevsky, S.V. Greene, Atsushi Takahara, A. N. Zelenski, J. H. Yoo, Y. Berdnikov, H. En'yo, A. Taranenko, R. Seidl, Vardan Khachatryan, Y. Watanabe, I. Yoon, D. E. Fields, Y. Gu, Raphael Noel Tieulent, I. Tserruya, M. Jezghani, D. Sharma, Y. I. Makdisi, R. Pak, M. X. Liu, M. E. Connors, K. A. Drees, D. Jouan, M. Sarsour, R. S. Towell, C. A. Ogilvie, Y. Kwon, A. Berdnikov, C. Nattrass, V. Singh, A. Hodges, H. Van Hecke, K. Ozawa, A. Sen, H. Asano, D. K. Mishra, Y. Ikeda, C. Pinkenburg, A. Lebedev, Yasuo Miake, S. Sato, T. Koblesky, N. N. Ajitanand, C. Y. Scarlett, P. Montuenga, J. Rak, J. Koster, J. L. Nagle, S. Nelson, J. Bryslawskyj, A. Sukhanov, S. J. Jeon, C. P. Wong, T. Moon, J. A. Key, K. DeBlasio, T. Gunji, Y. L. Yamaguchi, P. W. Stankus, T. Majoros, M. J. Leitch, T. Hachiya, G. D. N. Perera, J. Klatsky, L. Xue, I. J. Choi, B. Xia, J. Sziklai, K. Kurita, David Olle Rickard Silvermyr, K. Tanida, I. V. Sourikova, F. Wei, Yuki Watanabe, I. Younus, Norio Saito, R. Akimoto, L. Ding, D. Richford, C. L. Silva, A. Glenn, R. Pinson, Y. Akiba, P. V. Radzevich, D. Ivanishchev, D. McGlinchey, E. Joo, Roli Esha, J. B. Choi, K. Shigaki, J. Perry, V. Papavassiliou, M. Kofarago, A. S. Nyanin, D. Roach, C. E. Perezlara, Z. Ji, Tamas Novak, D. Yu Peressounko, M. J. Tannenbaum, T. K. Hemmick, S. H. Lim, Hari Guragain, B. Schaefer, A. Durum, P. Gallus, T. Murakami, M. Towell, A. Pun, Animesh Datta, T. Sumita, J. S. Kang, D. Kotov, Alexander Milov, C. L. Woody, I. Nakagawa, J. S. Bok, R. Belmont, L. Patel, Balazs Ujvari, Y. Zhai, V. Babintsev, C.Y. Chi, S. D. Rolnick, D. V. Perepelitsa, B. K. Schmoll, N. Novitzky, I. E. Yushmanov, M. Stepanov, S. Campbell, X. He, A. Mwai, D. Isenhower, Iu. Mitrankov, Tatsuya Chujo, T. C. Awes, Viktor Riabov, T. Rinn, D. P. Morrison, M. I. Nagy, R. A. Soltz, S. P. Sorensen, D. Watanabe, Anders Nils Erik Oskarsson, E. J. Desmond, J. Hanks, S. Miyasaka, Pawan Kumar Netrakanti, Byungsik Hong, S. Wolin, H. Sako, E. Vznuzdaev, A. Sexton, D. Kawall, M. Slunečka, A. Drees, B. Mulilo, N. Grau, X. Sun, A. Sickles, T. Sakaguchi, M. Rosati, B. M. Johnson, S. Beckman, S. Yalcin, R. Seto, Yongsun Kim, W. Peng, T. W. Danley, S. Ishimaru, J. Sun, J. G. Lajoie, Y. Imazu, Shota Suzuki, R. Nouicer, Hyun-Chul Kim, T. O. S. Haseler, B. Fadem, W. Fan, M. Vargyas, K. I. Hahn, Sándor Lökös, K. N. Barish, S. Zharko, P. Kline, A. Dion, M. L. Purschke, A. Enokizono, M. Beaumier, K. S. Joo, J. G. Rubin, N. Apadula, K. Sedgwick, S. Bathe, P. Shukla, Vladislav Manko, A. Timilsina, Christine Angela Aidala, X. H. Li, J. T. Mitchell, S. Mizuno, S. Hasegawa, N. A. Lewis, Henner Buesching, D. Kincses, S. H. Lee, C. McKinney, S. Nagamiya, K. Kihara, Qiao Xu, ShinIchi Esumi, A. Franz, J. C. Hill, Z. Citron, A. Yanovich, M. Leitgab, B. Meredith, Mate Csanad, A. Iordanova, S. Y. Han, J. Murata, H. A. Torii, B. Kurgyis, M. Nihashi, R. P. Pisani, U. Acharya, K. Homma, M. Chiu, Z. Rowan, M. Mendoza, M. L. Brooks, H. Ge, K. Nakano, I. Ravinovich, K. Boyle, M. Bai, V. Vrba, K. Imai, J. D. Osborn, Zirui Wang, M. Grosse Perdekamp, G. Mitsuka, J. E. Frantz, D. Lynch, A. Taketani, Priyanka Sett, C. P. Singh, D. S. Jumper, A.V. Kazantsev, J. D. Orjuela Koop, C. H. Chen, G. David, and A. Manion

Subjects
Physics, Scattering cross-section, 010308 nuclear & particles physics, Root (chord), Computer Science::Digital Libraries, 7. Clean energy, 01 natural sciences, Nuclear physics, Transverse plane, 0103 physical sciences, Transverse momentum, Rapidity, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract

The PHENIX experiment at the Relativistic Heavy Ion Collider has measured the differential cross section, mean transverse momentum, mean transverse mo

Published
2020
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47. A newly identified heterozygous lipoprotein lipase gene mutation (Cys239–>stop/TGC972–>TGA; LPLobama) in a patient with primary type IV hyperlipoproteinemia.

Author

A Takagi, Y Ikeda, A Mori, Z Tsutsumi, K Oida, T Nakai, and A Yamamoto

Subjects
Biochemistry, QD415-436
Abstract

We investigated measures for identification of heterozygous lipoprotein lipase (LPL) deficiency in unrelated subjects with primary type IV hyperlipoproteinemia in order to acquire a helpful clue for understanding the correlation between hypertriglyceridemia and the status of being a heterozygous carrier of an LPL gene variant. Identification of heterozygous LPL deficiency was performed by monitoring the immunoreactive LPL mass in postheparin plasma (PHP) using our developed sandwich-enzyme immunoassay technique for first screening. Then, in subjects found to have half or less than half of the control LPL mass value in PHP, the polymerase chain reaction-single strand conformation polymorphism method was used to detect LPL gene aberrations as a second screening. This approach was evaluated as being useful as it succeeded in identifying a subject (proband KD) with heterozygous LPL deficiency. The mutation in the LPL gene of proband KD was newly characterized as a nucleotide C972 to A transversion in exon 6, resulting in substitution of a premature termination codon (TGA) for Cys239 (TGC). This nonsense mutation, designated as LPLobama, creates an MboI restriction site and eliminates an HgiAI restriction site, and this allows rapid screening of subjects with type IV as well as type I hyperlipoproteinemia for the mutation. The homozygous state for the LPLobama allele resulted in neither detectable LPL activity nor immunoreactive LPL mass in PHP, and this was seen in two of proband KD's siblings.

Published
1994
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48. Linear IFMIF Prototype Accelerator (LIPAc): Installation activities for Phase-B beam commissioning in Rokkasho

Author

Ivan Moya, Atsushi Kasugai, Takayuki Kikuchi, Keishi Sakamoto, Antti Jokinen, Juan Knaster, Yoshikazu Okumura, M. Weber, Giuseppe Pruneri, Guy Phillips, Philippe Cara, David Jimenez, Keitaro Kondo, M. Perez, Masao Komata, Masayoshi Sugimoto, Benoit Bolzon, Sunao Maebara, Dominique Gex, Ryo Ichimiya, Y. Ikeda, R. Heidinger, J.-M. Ayala, Francesco Scantamburlo, Ivan Podadera, Shinobu Nishimura, Hervé Dzitko, Alvaro Marqueta, Takashi Ebisawa, Shigeru O‘hira, Yosuke Hirata, Takahiro Shinya, and Enrico Fagotti

Subjects
Physics, Nuclear and High Energy Physics, Materials Science (miscellaneous), Nuclear engineering, Beam commissioning, RF power amplifier, Phase (waves), 01 natural sciences, lcsh:TK9001-9401, 010305 fluids & plasmas, Low energy, Nuclear Energy and Engineering, Duty cycle, 0103 physical sciences, Neutron source, Pulsed mode, lcsh:Nuclear engineering. Atomic power, 010306 general physics, Beam (structure)
Abstract

The construction of the Linear IFMIF Prototype Accelerator (LIPAc) is in progress in order to demonstrate the feasibility of the low energy section of an IFMIF deuteron accelerator up to 9 MeV with a beam current of 125 mA in CW. The next milestone of the project is the so-called Phase-B beam commissioning, and one of the missions is to demonstrate the acceleration of the proton beam up to 2.5 MeV or the deuteron beam up to 5.0 MeV in pulsed mode with a low duty cycle of 0.1% through RFQ. Most of the components and subsystems necessary for Phase-B were delivered by 2016 under the responsibility of Fusion for Energy (F4E) as in-kind contributions of several European institutes, namely CEA (France), CIEMAT (Spain), INFN (Italy), and SCK-CEN (Belgium), and QST is in charge of the installation of the delivered equipment. The installation and check-out of the RFQ subsystem and the RF power system was completed by July 2017, and the RF conditioning of the RFQ cavity started. Also, the installation and the check-out of the important sub-systems for Phase-B, namely MEBT and beam diagnostics, have been completed. Keywords: IFMIF, LIPAc, RFQ, Accelerator, Deuteron, Neutron source

Published
2018

49. Fatigue strength of spring steel with small scratches

Author

Yoshiro Nishimura, Susumu Miyakawa, Y. Ikeda, Masahiro Endo, Yuya Tanaka, Nobuyuki Miyamoto, and Keiji Yanase

Subjects
Spring steel, 020303 mechanical engineering & transports, Materials science, 0203 mechanical engineering, Mechanics of Materials, Mechanical Engineering, General Materials Science, 02 engineering and technology, Composite material, 021001 nanoscience & nanotechnology, 0210 nano-technology, Fatigue limit
Published
2018
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50. Magnetic Properties of Epitaxial Barium Hexaferrite (0001) Thin Films Deposited by Radio Frequency Magnetron Sputtering

Author

Eiji Kita, Takeshi Tainosho, Y. Ikeda, Hideto Yanagihara, Hiroshige Onoda, Ritesh Patel, Sonia Sharmin, and Yuki Hisamatsu

Subjects
010302 applied physics, Materials science, Condensed matter physics, Anisotropy energy, chemistry.chemical_element, Barium, 02 engineering and technology, Substrate (electronics), 021001 nanoscience & nanotechnology, Epitaxy, 01 natural sciences, Electronic, Optical and Magnetic Materials, Magnetic anisotropy, chemistry, Sputtering, 0103 physical sciences, Electrical and Electronic Engineering, Thin film, 0210 nano-technology, Anisotropy
Abstract

We report the growth of barium hexaferrite (BaM) (0001) epitaxial thin films, deposited on $\alpha $ -Al2O3(0001) substrate by radio frequency magnetron sputtering. We found that the ratio of barium to iron in the films was reduced from that of the stoichiometric target. Although the saturation magnetization does not show clear thickness dependence at all, the magnetic anisotropy shows significant thickness dependence due to large surface/interface anisotropy. Taking account of charge neutrality in the BaM accompanying the Ba-rich composition, introducing T-blocks into BaM structure can reasonably explain the experimentally observed reductions in the saturation magnetization and anisotropy energy.

Published
2018
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