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Ha TY, Kim JB, Kim Y, Park SM, Chang KA. GPR40 agonist ameliorates neurodegeneration and motor impairment by regulating NLRP3 inflammasome in Parkinson's disease animal models. Pharmacol Res 2024; 209:107432. [PMID: 39313081 DOI: 10.1016/j.phrs.2024.107432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 09/20/2024] [Accepted: 09/20/2024] [Indexed: 09/25/2024]
Abstract
Parkinson's disease (PD) is characterized by the progressive degeneration of dopaminergic neurons in the substantia nigra (SN) and accumulation of intracellular α-synuclein (ɑ-syn) aggregates known as Lewy bodies and Lewy neurites. Levels of polyunsaturated fatty acids (PUFAs) have previously been shown to be reduced in the SN of PD patients. G protein-coupled receptor 40 (GPR40) serves as a receptor for PUFAs, playing a role in neurodevelopment and neurogenesis. Additionally, GPR40 has been implicated in several neuropathological conditions, such as apoptosis and inflammation, suggesting its potential as a therapeutic target in PD. In this study, we investigated the neuroprotective effects of the GPR40 agonist, TUG469 in PD models. Our results demonstrated that TUG469 reduces the neurotoxicity induced by 6-OHDA in SH-SY5Y cells. In 6-OHDA-induced PD model mice, TUG469 treatment improved motor impairment, preserved dopaminergic fibers and cell bodies in the striatum (ST) or SN, and attenuated 6-OHDA-induced microgliosis and astrogliosis in the brain. Furthermore, in a PD model involving the injection of mouse ɑ-syn fibrils into the brain (mPFFs-PD model), TUG469 treatment reduced the levels of pSer129 ɑ-syn, and decreased microgliosis and astrogliosis. Our investigation also revealed that TUG469 modulates inflammasome activation, apoptosis, and autophagy in the 6-OHDA-PD model, as evidenced by the results of RNA-seq and western blotting analyses. In summary, our findings highlight the neuroprotective effects of GPR40 agonists on dopaminergic neurons and their potential as therapeutic agents for PD. These results underscore the importance of targeting GPR40 in PD treatment, particularly in mitigating neuroinflammation and preserving neuronal integrity.
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Zhang X, Kim JB, Antypas D. Coherent amplitude modulation of continuous-wave light in cesium vapor. OPTICS LETTERS 2024; 49:3348-3351. [PMID: 38875617 DOI: 10.1364/ol.522219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 05/24/2024] [Indexed: 06/16/2024]
Abstract
We report on observations of coherent, sustained oscillations in the absorption of continuous-wave light at 388 nm that excites the 6S1/2 → 8P3/2 transition in cesium (Cs) vapor. The oscillation frequency is close to the spacing of hyperfine levels of the 8P3/2 level that are excited simultaneously by the 388 nm field. We observe a threshold behavior of the oscillation amplitude with pump power and suggest that the effect is associated with infrared directional emission due to amplified spontaneous emission (ASE) from the 8P3/2 → 8S1/2 transition that is assisted by retro-reflections from cell windows. The effect may be used to probe a lasing process in an atomic vapor, by checking the temporal properties of the pump field transmitted through the vapor.
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Kim JB, Kim SJ, So M, Kim DK, Noh HR, Kim BJ, Choi YR, Kim D, Koo H, Kim T, Woo HG, Park SM. Artificial intelligence-driven drug repositioning uncovers efavirenz as a modulator of α-synuclein propagation: Implications in Parkinson's disease. Biomed Pharmacother 2024; 174:116442. [PMID: 38513596 DOI: 10.1016/j.biopha.2024.116442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 03/09/2024] [Accepted: 03/15/2024] [Indexed: 03/23/2024] Open
Abstract
Parkinson's disease (PD) is a complex neurodegenerative disorder with an unclear etiology. Despite significant research efforts, developing disease-modifying treatments for PD remains a major unmet medical need. Notably, drug repositioning is becoming an increasingly attractive direction in drug discovery, and computational approaches offer a relatively quick and resource-saving method for identifying testable hypotheses that promote drug repositioning. We used an artificial intelligence (AI)-based drug repositioning strategy to screen an extensive compound library and identify potential therapeutic agents for PD. Our AI-driven analysis revealed that efavirenz and nevirapine, approved for treating human immunodeficiency virus infection, had distinct profiles, suggesting their potential effects on PD pathophysiology. Among these, efavirenz attenuated α-synuclein (α-syn) propagation and associated neuroinflammation in the brain of preformed α-syn fibrils-injected A53T α-syn Tg mice and α-syn propagation and associated behavioral changes in the C. elegans BiFC model. Through in-depth molecular investigations, we found that efavirenz can modulate cholesterol metabolism and mitigate α-syn propagation, a key pathological feature implicated in PD progression by regulating CYP46A1. This study opens new avenues for further investigation into the mechanisms underlying PD pathology and the exploration of additional drug candidates using advanced computational methodologies.
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Kim JB, Kim Y, Kim SJ, Ha TY, Kim DK, Kim DW, So M, Kim SH, Woo HG, Yoon D, Park SM. Integration of National Health Insurance claims data and animal models reveals fexofenadine as a promising repurposed drug for Parkinson's disease. J Neuroinflammation 2024; 21:53. [PMID: 38383441 PMCID: PMC10880337 DOI: 10.1186/s12974-024-03041-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 02/12/2024] [Indexed: 02/23/2024] Open
Abstract
BACKGROUND Parkinson's disease (PD) is a common and costly progressive neurodegenerative disease of unclear etiology. A disease-modifying approach that can directly stop or slow its progression remains a major unmet need in the treatment of PD. A clinical pharmacology-based drug repositioning strategy is a useful approach for identifying new drugs for PD. METHODS We analyzed claims data obtained from the National Health Insurance Service (NHIS), which covers a significant portion of the South Korean population, to investigate the association between antihistamines, a class of drugs commonly used to treat allergic symptoms by blocking H1 receptor, and PD in a real-world setting. Additionally, we validated this model using various animal models of PD such as the 6-hydroxydopmaine (6-OHDA), α-synuclein preformed fibrils (PFF) injection, and Caenorhabditis elegans (C. elegans) models. Finally, whole transcriptome data and Ingenuity Pathway Analysis (IPA) were used to elucidate drug mechanism pathways. RESULTS We identified fexofenadine as the most promising candidate using National Health Insurance claims data in the real world. In several animal models, including the 6-OHDA, PFF injection, and C. elegans models, fexofenadine ameliorated PD-related pathologies. RNA-seq analysis and the subsequent experiments suggested that fexofenadine is effective in PD via inhibition of peripheral immune cell infiltration into the brain. CONCLUSION Fexofenadine shows promise for the treatment of PD, identified through clinical data and validated in diverse animal models. This combined clinical and preclinical approach offers valuable insights for developing novel PD therapeutics.
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Jin U, Park SJ, Lee BG, Kim JB, Kim SJ, Joe EH, Woo HG, Park SM. Critical roles of parkin and PINK1 in coxsackievirus B3-induced viral myocarditis. Microbes Infect 2023; 25:105211. [PMID: 37574181 DOI: 10.1016/j.micinf.2023.105211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 08/03/2023] [Accepted: 08/08/2023] [Indexed: 08/15/2023]
Abstract
Viral myocarditis is an inflammatory disease of the myocardium, often leads to cardiac dysfunction and death. PARKIN (PRKN) and PINK1, well known as Parkinson's disease-associated genes, have been reported to be involved in innate immunity and mitochondrial damage control. Therefore, we investigated the role of parkin and PINK1 in coxsackievirus B3 (CVB3)-induced viral myocarditis because the etiology of myocarditis is related to abnormal immune response to viral infection and mitochondrial damage. After viral infection, the survival was significantly lower and myocardial damage was more severe in parkin knockout (KO) and PINK1 KO mice compared to wild-type (WT) mice. Parkin KO and PINK1 KO showed defective immune cell recruitment and impaired production of antiviral cytokines such as interferon-gamma, allowing increased viral replication. In addition, parkin KO and PINK1 KO mice were more susceptible to CVB3-induced mitochondrial damage than WT mice, resulting in susceptibility to viral-induced cardiac damage. Finally, using publicly available RNA-seq data, we found that pathogenic mutants of the PRKN gene are more common in patients with dilated cardiomyopathy and myocarditis than in controls or the general population. This study will help elucidate the molecular mechanism of CVB3-induced viral myocarditis.
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Park H, Yu HT, Kim TH, Park J, Park JK, Kang KW, Shim J, Kim JB, Choi EK, Park HW, Lee YS, Joung B. Oral anticoagulation therapy in atrial fibrillation patients with advanced chronic kidney disease: CODE-AF Registry. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background and objectives
Advanced chronic kidney disease (CKD), including end-stage renal disease (ESRD) on dialysis, increases thromboembolic risk among patients with atrial fibrillation (AF). This study examined the comparative safety and efficacy of direct-acting oral anticoagulant (DOAC) compared to warfarin or no OAC among AF patients with advanced CKD or ESRD on dialysis.
Methods
Using data from the COmparison study of Drugs for symptom control and complication prEvention of AF (CODE-AF) registry, 260 non-valvular AF patients with advanced CKD (defined as estimated glomerular filtration rate [eGFR] <3 0ml/min per 1.73 m2) or ESRD on dialysis were enrolled from June 2016 to July 2020. The study population was categorized into DOAC, warfarin, and no OAC group, and differences in major or clinically relevant non-major (CRNM) bleeding, stroke/systemic embolism (SE), myocardial infarction/critical limb ischemia (CLI), and death were assessed.
Results
During a median 24 months of follow-up, major or CRNM bleeding risk was significantly reduced in the DOAC group compared to the warfarin group (hazard ratio [HR] 0.21, 95% confidence interval [CI] 0.05 to 0.95, p=0.042). In addition, the risk of composite adverse clinical outcome (major or CRNM bleeding, stroke/SE, myocardial infarction/CLI, and death) was significantly reduced in the DOAC group compared to the no OAC group (HR 0.32, 95% CI 0.11 to 0.96, p=0.043).
Conclusion
Among AF patients with advanced CKD or ESRD on dialysis, DOAC was associated with a lower risk of major or CRNM bleeding compared to warfarin and a lower risk of composite adverse clinical outcome compared to no OAC.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Korean Healthcare Technology R&D project funded by the Ministry of Health & Welfare (HI15C1200, HC19C0130)
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Park H, Yu HT, Kim TH, Park J, Park JK, Kang KW, Shim J, Kim JB, Kim J, Choi EK, Park HW, Lee YS, Joung B. Resting heart rate and cardiovascular outcomes in patients with atrial fibrillation: CODE-AF registry. Europace 2022. [DOI: 10.1093/europace/euac053.182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background
The prognostic significance of resting heart rate and its therapeutic target in atrial fibrillation (AF) is uncertain.
Purpose
The aim of this study was to investigate the relationships between resting heart rate and cardiovascular outcomes in patients with AF.
Methods
A total of 8,886 patients with AF was included from the COmparison study of Drugs for symptom control and complication prEvention of AF (CODE-AF) registry. Patients were categorized according to baseline heart rate, and cardiovascular outcomes were accessed during a median follow-up of 30 months. The primary outcome was a composite of cardiovascular death, hospitalization due to heart failure, and myocardial infarction/critical limb ischemia.
Results
Compared to heart rate ≥100 beats per minute (bpm), heart rate 80-99 bpm was associated with the lowest risk of primary outcome (adjusted hazard ratio [HR] 0.56, 95% confidence interval [CI] 0.40-0.79, p=0.001). In subgroup of patients with heart failure with preserved ejection fraction (HFpEF), heart rate between 80-99 bpm was associated with reduced risk of primary outcome compared to heart rate ≥100 bpm (HR 0.40, 95% CI 0.16-0.98, p=0.045). However, in patients with heart failure with reduced ejection fraction (HFrEF), there was no association between resting heart rate and cardiovascular outcomes (P for interaction 0.001).
Conclusion
Resting heart rate was associated with cardiovascular outcomes in patients with AF, and those with a resting heart rate between 80-99 bpm had the lowest risk of adverse events. The impact of resting heart rate on adverse events persisted in patients with concomitant HFpEF but was not apparent in those with concomitant HFrEF.
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Ha TY, Choi YR, Noh HR, Cha SH, Kim JB, Park SM. Age-related increase in caveolin-1 expression facilitates cell-to-cell transmission of α-synuclein in neurons. Mol Brain 2021; 14:122. [PMID: 34321069 PMCID: PMC8320051 DOI: 10.1186/s13041-021-00834-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 07/20/2021] [Indexed: 02/07/2023] Open
Abstract
Parkinson's disease (PD) is the second most prevalent neurodegenerative disease, with aging being considered the greatest risk factor for developing PD. Caveolin-1 (Cav-1) is known to participate in the aging process. Recent evidence indicates that prion-like propagation of misfolded α-synuclein (α-syn) released from neurons to neighboring neurons plays an important role in PD progression. In the present study, we demonstrated that cav-1 expression in the brain increased with age, and considerably increased in the brain of A53T α-syn transgenic mice. Cav-1 overexpression facilitated the uptake of α-syn into neurons and formation of additional Lewy body-like inclusion bodies, phosphorylation of cav-1 at tyrosine 14 was found to be crucial for this process. This study demonstrates the relationship between age and α-syn spread and will facilitate our understanding of the molecular mechanism of the cell-to-cell transmission of α-syn.
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Choi YR, Kim JB, Kang SJ, Noh HR, Jou I, Joe EH, Park SM. The dual role of c-src in cell-to-cell transmission of α-synuclein. EMBO Rep 2020; 21:e50843. [PMID: 32618125 PMCID: PMC7332791 DOI: 10.15252/embr.202050843] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Choi YR, Kim JB, Kang SJ, Noh HR, Jou I, Joe EH, Park SM. The dual role of c-src in cell-to-cell transmission of α-synuclein. EMBO Rep 2020; 21:e48950. [PMID: 32372484 DOI: 10.15252/embr.201948950] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 04/02/2020] [Accepted: 04/14/2020] [Indexed: 12/12/2022] Open
Abstract
Parkinson's disease (PD) is characterized by the loss of dopaminergic neurons located in the substantia nigra pars compacta and the presence of proteinaceous inclusions called Lewy bodies and Lewy neurites in numerous brain regions. Increasing evidence indicates that Lewy pathology progressively involves additional regions of the nervous system as the disease advances, and the prion-like propagation of α-synuclein (α-syn) pathology promotes PD progression. Accordingly, the modulation of α-syn transmission may be important for the development of disease-modifying therapies in patients with PD. Here, we demonstrate that α-syn fibrils induce c-src activation in neurons, which depends on the FcγRIIb-SHP-1/-2-c-src pathway and enhances signals for the uptake of α-syn into neurons. Blockade of c-src activation inhibits the uptake of α-syn and the formation of Lewy body-like inclusions. Furthermore, the blockade of c-src activation also inhibits the release of α-syn via activation of autophagy. The brain-permeable c-src inhibitor, saracatinib, efficiently reduces α-syn propagation into neighboring regions in an in vivo model system. These results suggest a new therapeutic target against progressive PD.
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Li YB, Shen CP, Yuan CZ, Adachi I, Aihara H, Al Said S, Asner DM, Aushev T, Ayad R, Badhrees I, Ban Y, Bansal V, Beleño C, Berger M, Bhardwaj V, Bhuyan B, Bilka T, Biswal J, Bondar A, Bozek A, Bračko M, Cao L, Červenkov D, Chen A, Cheon BG, Chilikin K, Cho K, Choi SK, Choi Y, Cinabro D, Cunliffe S, Di Carlo S, Doležal Z, Dong TV, Drásal Z, Eidelman S, Fast JE, Fulsom BG, Garg R, Gaur V, Gabyshev N, Garmash A, Giri A, Goldenzweig P, Greenwald D, Grube B, Hayasaka K, Hayashii H, Hsu CL, Iijima T, Inami K, Inguglia G, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Jacobs WW, Jia S, Jin Y, Joffe D, Joo KK, Karyan G, Kawasaki T, Kichimi H, Kim DY, Kim HJ, Kim JB, Kim KT, Kim SH, Kinoshita K, Kodyš P, Korpar S, Kotchetkov D, Križan P, Kroeger R, Krokovny P, Kumita T, Kuzmin A, Kwon YJ, Lee JY, Lee SC, Li LK, Li Gioi L, Libby J, Liventsev D, Lubej M, MacNaughton J, Masuda M, Matsuda T, Merola M, Miyabayashi K, Miyata H, Mizuk R, Mohanty GB, Mussa R, Nakano E, Nakao M, Nath KJ, Nayak M, Niiyama M, Nishida S, Ono H, Onuki Y, Pakhlov P, Pakhlova G, Pal B, Pardi S, Park SH, Paul S, Pedlar TK, Pestotnik R, Piilonen LE, Popov V, Prencipe E, Russo G, Sakai Y, Salehi M, Sandilya S, Santelj L, Sanuki T, Savinov V, Schneider O, Schnell G, Schueler J, Schwanda C, Schwartz AJ, Seino Y, Senyo K, Sevior ME, Shibata TA, Shiu JG, Shwartz B, Solovieva E, Starič M, Sumihama M, Sumiyoshi T, Sutcliffe W, Takizawa M, Tanida K, Tao Y, Tenchini F, Trabelsi K, Uchida M, Uglov T, Unno Y, Uno S, Urquijo P, Van Tonder R, Varner G, Wang B, Wang CH, Wang MZ, Wang P, Wang XL, Won E, Yang SB, Ye H, Yelton J, Yin JH, Yusa Y, Zhang ZP, Zhilich V, Zhukova V. First Measurements of Absolute Branching Fractions of the Ξ_{c}^{0} Baryon at Belle. PHYSICAL REVIEW LETTERS 2019; 122:082001. [PMID: 30932568 DOI: 10.1103/physrevlett.122.082001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Revised: 01/27/2019] [Indexed: 06/09/2023]
Abstract
We present the first measurements of absolute branching fractions of Ξ_{c}^{0} decays into Ξ^{-}π^{+}, ΛK^{-}π^{+}, and pK^{-}K^{-}π^{+} final states. The measurements are made using a dataset comprising (772±11)×10^{6} BB[over ¯] pairs collected at the ϒ(4S) resonance with the Belle detector at the KEKB e^{+}e^{-} collider. We first measure the absolute branching fraction for B^{-}→Λ[over ¯]_{c}^{-}Ξ_{c}^{0} using a missing-mass technique; the result is B(B^{-}→Λ[over ¯]_{c}^{-}Ξ_{c}^{0})=(9.51±2.10±0.88)×10^{-4}. We subsequently measure the product branching fractions B(B^{-}→Λ[over ¯]_{c}^{-}Ξ_{c}^{0})B(Ξ_{c}^{0}→Ξ^{-}π^{+}), B(B^{-}→Λ[over ¯]_{c}^{-}Ξ_{c}^{0})B(Ξ_{c}^{0}→ΛK^{-}π^{+}), and B(B^{-}→Λ[over ¯]_{c}^{-}Ξ_{c}^{0})B(Ξ_{c}^{0}→pK^{-}K^{-}π^{+}) with improved precision. Dividing these product branching fractions by the result for B^{-}→Λ[over ¯]_{c}^{-}Ξ_{c}^{0} yields the following branching fractions: B(Ξ_{c}^{0}→Ξ^{-}π^{+})=(1.80±0.50±0.14)%, B(Ξ_{c}^{0}→ΛK^{-}π^{+})=(1.17±0.37±0.09)%, and B(Ξ_{c}^{0}→pK^{-}K^{-}π^{+})=(0.58±0.23±0.05)%. For the above branching fractions, the first uncertainties are statistical and the second are systematic. Our result for B(Ξ_{c}^{0}→Ξ^{-}π^{+}) can be combined with Ξ_{c}^{0} branching fractions measured relative to Ξ_{c}^{0}→Ξ^{-}π^{+} to yield other absolute Ξ_{c}^{0} branching fractions.
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Sumihama M, Adachi I, Ahn JK, Aihara H, Al Said S, Asner DM, Atmacan H, Aushev T, Ayad R, Babu V, Badhrees I, Bahinipati S, Bakich AM, Bansal V, Beleño C, Berger M, Bhardwaj V, Bhuyan B, Bilka T, Biswal J, Bonvicini G, Bozek A, Bračko M, Browder TE, Červenkov D, Chekelian V, Chen A, Cheon BG, Chilikin K, Cho K, Choi SK, Choi Y, Choudhury S, Cinabro D, Cunliffe S, Czank T, Dash N, Di Carlo S, Doležal Z, Dong TV, Drásal Z, Eidelman S, Epifanov D, Fast JE, Fulsom BG, Garg R, Gaur V, Gabyshev N, Garmash A, Gelb M, Giri A, Goldenzweig P, Guido E, Haba J, Hayasaka K, Hayashii H, Hirose S, Hou WS, Inami K, Inguglia G, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Jacobs WW, Jeon HB, Jia S, Jin Y, Joo KK, Julius T, Kaliyar AB, Kang KH, Karyan G, Kato Y, Kiesling C, Kim DY, Kim JB, Kim KT, Kim SH, Kinoshita K, Kodyš P, Korpar S, Kotchetkov D, Križan P, Kroeger R, Krokovny P, Kumar R, Kuzmin A, Kwon YJ, Lange JS, Lee IS, Lee SC, Li LK, Li YB, Li Gioi L, Libby J, Liventsev D, Lubej M, Luo T, Masuda M, Matsuda T, Matvienko D, Merola M, Miyabayashi K, Miyata H, Mizuk R, Mohanty GB, Moon HK, Mori T, Mussa R, Nakano E, Nakano T, Nakao M, Nanut T, Nath KJ, Natkaniec Z, Niiyama M, Nisar NK, Nishida S, Ono H, Pakhlov P, Pakhlova G, Pal B, Pardi S, Park H, Paul S, Pedlar TK, Pestotnik R, Piilonen LE, Popov V, Ritter M, Russo G, Sahoo D, Sandilya S, Santelj L, Sanuki T, Savinov V, Schneider O, Schnell G, Schwanda C, Seino Y, Senyo K, Sevior ME, Shebalin V, Shen CP, Shibata TA, Shiu JG, Shwartz B, Simon F, Sokolov A, Solovieva E, Starič M, Strube JF, Sumiyoshi T, Takizawa M, Tamponi U, Tanida K, Taniguchi N, Tenchini F, Uchida M, Uglov T, Uno S, Urquijo P, Vahsen SE, Van Hulse C, Varner G, Vorobyev V, Vossen A, Wang B, Wang CH, Wang MZ, Wang P, Wang XL, Watanabe M, Watanuki S, Widmann E, Won E, Ye H, Yelton J, Yuan CZ, Yusa Y, Zakharov S, Zhang ZP, Zhilich V, Zhukova V, Zhulanov V. Observation of Ξ(1620)^{0} and Evidence for Ξ(1690)^{0} in Ξ_{c}^{+}→Ξ^{-}π^{+}π^{+} Decays. PHYSICAL REVIEW LETTERS 2019; 122:072501. [PMID: 30848612 DOI: 10.1103/physrevlett.122.072501] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 01/08/2019] [Indexed: 06/09/2023]
Abstract
We report the first observation of the double strange baryon Ξ(1620)^{0} in its decay to Ξ^{-}π^{+} via Ξ_{c}^{+}→Ξ^{-}π^{+}π^{+} decays based on a 980 fb^{-1} data sample collected with the Belle detector at the KEKB asymmetric-energy e^{+}e^{-} collider. The mass and width are measured to be 1610.4±6.0(stat)_{-4.2}^{+6.1} (syst) MeV/c^{2} and 59.9±4.8(stat)_{-7.1}^{+2.8}(syst) MeV, respectively. We obtain 4.0σ evidence of the Ξ(1690)^{0} with the same data sample. These results shed light on the structure of hyperon resonances with strangeness S=-2.
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An J, Yang J, Lee WH, Kim JB, Kim JK, Kim H, Paek SH, Lee JW, Woo J, Kwon H, Lim W, Paik NS, Kim YK, Moon BI. Abstract P2-02-09: Not presented. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p2-02-09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
This abstract was not presented at the conference.
Citation Format: An J, Yang J, Lee W-H, Kim JB, Kim J-k, Kim H, Paek SH, Lee JW, Woo J, Kwon H, Lim W, Paik NS, Kim Y-K, Moon B-I. Not presented [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P2-02-09.
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Guan Y, Vossen A, Adachi I, Adamczyk K, Ahn JK, Aihara H, Al Said S, Asner DM, Atmacan H, Aulchenko V, Aushev T, Ayad R, Babu V, Badhrees I, Bakich AM, Bansal V, Behera P, Beleño C, Berger M, Bhardwaj V, Bhuyan B, Bilka T, Biswal J, Bobrov A, Bonvicini G, Bozek A, Bračko M, Browder TE, Cao L, Červenkov D, Chang P, Chekelian V, Chen A, Cheon BG, Chilikin K, Cho K, Choi SK, Choi Y, Cinabro D, Cunliffe S, Dash N, Di Carlo S, Dingfelder J, Doležal Z, Dong TV, Drásal Z, Eidelman S, Epifanov D, Fast JE, Ferber T, Fulsom BG, Garg R, Gaur V, Gabyshev N, Garmash A, Gelb M, Giri A, Goldenzweig P, Golob B, Guido E, Haba J, Hayasaka K, Hayashii H, Hirose S, Hou WS, Iijima T, Inami K, Inguglia G, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Jacobs WW, Jaegle I, Jeon HB, Jia S, Jin Y, Joffe D, Joo KK, Julius T, Kang KH, Kawasaki T, Kiesling C, Kim DY, Kim HJ, Kim JB, Kim KT, Kim SH, Kinoshita K, Kodyš P, Korpar S, Kotchetkov D, Križan P, Kroeger R, Krokovny P, Kuhr T, Kulasiri R, Kuzmin A, Kwon YJ, Lange JS, Lee IS, Lee SC, Li LK, Li YB, Li Gioi L, Libby J, Liventsev D, Lubej M, Luo T, Masuda M, Matsuda T, Matvienko D, Merola M, Miyata H, Mizuk R, Mohanty GB, Moon HK, Mori T, Mussa R, Nakao M, Nanut T, Nath KJ, Natkaniec Z, Nayak M, Niiyama M, Nisar NK, Nishida S, Ogawa S, Okuno S, Ono H, Pakhlov P, Pakhlova G, Pal B, Pardi S, Park H, Paul S, Pedlar TK, Pestotnik R, Piilonen LE, Popov V, Prencipe E, Rabusov A, Rostomyan A, Russo G, Sahoo D, Sakai Y, Salehi M, Sandilya S, Santelj L, Sanuki T, Savinov V, Schneider O, Schnell G, Schwanda C, Seidl R, Seino Y, Senyo K, Seon O, Sevior ME, Shebalin V, Shen CP, Shibata TA, Shiu JG, Simon F, Sokolov A, Solovieva E, Starič M, Strube JF, Sumihama M, Sumiyoshi T, Sutcliffe W, Suzuki K, Takizawa M, Tamponi U, Tanida K, Tenchini F, Uchida M, Uglov T, Unno Y, Uno S, Urquijo P, Usov Y, Vahsen SE, Van Hulse C, Van Tonder R, Varner G, Vinokurova A, Vorobyev V, Waheed E, Wang B, Wang CH, Wang MZ, Wang P, Wang XL, Watanuki S, Widmann E, Won E, Ye H, Yelton J, Yin JH, Yuan CZ, Yusa Y, Zhang ZP, Zhilich V, Zhukova V, Zhulanov V, Zupanc A. Observation of Transverse Λ/Λ[over ¯] Hyperon Polarization in e^{+}e^{-} Annihilation at Belle. PHYSICAL REVIEW LETTERS 2019; 122:042001. [PMID: 30768311 DOI: 10.1103/physrevlett.122.042001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 12/21/2018] [Indexed: 06/09/2023]
Abstract
We report the first observation of the spontaneous polarization of Λ and Λ[over ¯] hyperons transverse to the production plane in e^{+}e^{-} annihilation, which is attributed to the effect arising from a polarizing fragmentation function. For inclusive Λ/Λ[over ¯] production, we also report results with subtracted feed-down contributions from Σ^{0} and charm. This measurement uses a dataset of 800.4 fb^{-1} collected by the Belle experiment at or near a center-of-mass energy of 10.58 GeV. We observe a significant polarization that rises with the fractional energy carried by the Λ/Λ[over ¯] hyperon.
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Seong IS, Vahsen SE, Adachi I, Aihara H, Al Said S, Asner DM, Aulchenko V, Aushev T, Ayad R, Babu V, Bakich AM, Bansal V, Behera P, Bhardwaj V, Bhuyan B, Bilka T, Biswal J, Bobrov A, Bonvicini G, Bozek A, Bračko M, Browder TE, Cao L, Červenkov D, Chang P, Chekelian V, Chen A, Cheon BG, Chilikin K, Cho K, Choi Y, Choudhury S, Cinabro D, Cunliffe S, Dash N, Di Carlo S, Dingfelder J, Dong TV, Eidelman S, Epifanov D, Fast JE, Frey A, Fulsom BG, Garg R, Gaur V, Gabyshev N, Garmash A, Gelb M, Giri A, Goldenzweig P, Golob B, Guido E, Haba J, Hayasaka K, Hayashii H, Hedges MT, Higuchi T, Hou WS, Hsu CL, Huang K, Iijima T, Inami K, Inguglia G, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Jacobs WW, Jeon HB, Jia S, Jin Y, Joffe D, Joo KK, Julius T, Kaliyar AB, Karyan G, Kawasaki T, Kichimi H, Kiesling C, Kim DY, Kim JB, Kim KT, Kim SH, Kinoshita K, Kodyš P, Korpar S, Kotchetkov D, Križan P, Kroeger R, Krokovny P, Kuhr T, Kumita T, Kuzmin A, Kwon YJ, Lange JS, Lee IS, Lee SC, Li LK, Li YB, Li Gioi L, Libby J, Liventsev D, Lubej M, Luo T, MacQueen C, Masuda M, Matsuda T, Merola M, Miyabayashi K, Miyata H, Mizuk R, Mohanty GB, Mori T, Mussa R, Nakano E, Nakao M, Nanut T, Nath KJ, Nayak M, Niiyama M, Nisar NK, Nishida S, Nishimura K, Ogawa S, Ono H, Ostrowicz W, Pakhlov P, Pakhlova G, Pal B, Park H, Pedlar TK, Pestotnik R, Piilonen LE, Prencipe E, Ritter M, Rostomyan A, Russo G, Sakai Y, Salehi M, Sandilya S, Santelj L, Sanuki T, Savinov V, Schneider O, Schnell G, Schueler J, Schwanda C, Seino Y, Senyo K, Seon O, Sevior ME, Shen CP, Shibata TA, Shiu JG, Simon F, Solovieva E, Stanič S, Starič M, Sumihama M, Sumiyoshi T, Sutcliffe W, Takizawa M, Tanida K, Tenchini F, Trabelsi K, Uchida M, Uglov T, Unno Y, Uno S, Usov Y, Van Hulse C, Van Tonder R, Varner G, Vinokurova A, Vossen A, Wang B, Wang CH, Wang P, Watanabe M, Watanuki S, Widmann E, Won E, Yamamoto H, Ye H, Yelton J, Yuan CZ, Yusa Y, Zakharov S, Zhang ZP, Zhilich V, Zhukova V, Zhulanov V, Zupanc A. Search for a Light CP-odd Higgs Boson and Low-Mass Dark Matter at the Belle Experiment. PHYSICAL REVIEW LETTERS 2019; 122:011801. [PMID: 31012694 DOI: 10.1103/physrevlett.122.011801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Indexed: 06/09/2023]
Abstract
We report on the first Belle search for a light CP-odd Higgs boson, A^{0}, that decays into low mass dark matter, χ, in final states with a single photon and missing energy. We search for events produced via the dipion transition ϒ(2S)→ϒ(1S)π^{+}π^{-}, followed by the on-shell process ϒ(1S)→γA^{0} with A^{0}→χχ, or by the off-shell process ϒ(1S)→γχχ. Utilizing a data sample of 157.3×10^{6} ϒ(2S) decays, we find no evidence for a signal. We set limits on the branching fractions of such processes in the mass ranges M_{A^{0}}<8.97 GeV/c^{2} and M_{χ}<4.44 GeV/c^{2}. We then use the limits on the off-shell process to set competitive limits on WIMP-nucleon scattering in the WIMP mass range below 5 GeV/c^{2}.
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Adachi I, Adye T, Ahmed H, Ahn JK, Aihara H, Akar S, Alam MS, Albert J, Anulli F, Arnaud N, Asner DM, Aston D, Atmacan H, Aushev T, Ayad R, Babu V, Badhrees I, Bakich AM, Banerjee S, Bansal V, Barlow RJ, Batignani G, Beaulieu A, Behera P, Bellis M, Ben-Haim E, Bernard D, Bernlochner FU, Bettarini S, Bettoni D, Bevan AJ, Bhardwaj V, Bhuyan B, Bianchi F, Biasini M, Biswal J, Blinov VE, Bomben M, Bondar A, Bonneaud GR, Bozek A, Bozzi C, Bračko M, Browder TE, Brown DN, Brown DN, Bünger C, Burchat PR, Buzykaev AR, Calabrese R, Calcaterra A, Calderini G, Di Carlo S, Carpinelli M, Cartaro C, Casarosa G, Cenci R, Chao DS, Chauveau J, Cheaib R, Chen A, Chen C, Cheng CH, Cheon BG, Chilikin K, Cho K, Choi Y, Choudhury S, Chrzaszcz M, Cibinetto G, Cinabro D, Cochran J, Coleman JP, Convery MR, Cowan G, Cowan R, Cremaldi L, Cunliffe S, Dash N, Davier M, Davis CL, De Mori F, De Nardo G, Denig AG, de Sangro R, Dey B, Di Lodovico F, Dittrich S, Doležal Z, Dorfan J, Drásal Z, Druzhinin VP, Dunwoodie W, Ebert M, Echenard B, Eidelman S, Eigen G, Eisner AM, Emery S, Epifanov D, Ernst JA, Faccini R, Fast JE, Feindt M, Ferber T, Ferrarotto F, Ferroni F, Field RC, Filippi A, Finocchiaro G, Fioravanti E, Flood KT, Forti F, Fritsch M, Fulsom BG, Gabathuler E, Gamba D, Garg R, Garmash A, Gary JW, Garzia I, Gaur V, Gaz A, Gelb M, Gershon TJ, Li Gioi L, Giorgi MA, Giri A, Godang R, Goldenzweig P, Golob B, Golubev VB, Gorodeisky R, Gradl W, Graham MT, Grauges E, Griessinger K, Gritsan AV, Grünberg O, Guan Y, Guido E, Guttman N, Haba J, Hafner A, Hara T, Harrison PF, Hast C, Hayasaka K, Hayashii H, Hearty C, Heck M, Hedges MT, Heß M, Hirose S, Hitlin DG, Honscheid K, Hou WS, Hsu CL, Huard Z, Van Hulse C, Hutchcroft DE, Inami K, Inguglia G, Innes WR, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Izen JM, Jacobs WW, Jawahery A, Jessop CP, Jia S, Jin Y, Joo KK, Julius T, Kaliyar AB, Kang KH, Karyan G, Kass R, Kichimi H, Kim DY, Kim JB, Kim KT, Kim SH, Kim J, Kim P, King GJ, Kinoshita K, Koch H, Kodyš P, Kolomensky YG, Korpar S, Kotchetkov D, Kowalewski R, Kravchenko EA, Križan P, Kroeger R, Krokovny P, Kuhr T, Kulasiri R, Kumita T, Kuzmin A, Kwon YJ, Lacker HM, Lafferty GD, Lanceri L, Lange JS, Lange DJ, Lankford AJ, Latham TE, Leddig T, Le Diberder F, Lee IS, Lee SC, Lees JP, Leith DWGS, Li LK, Li YB, Li Y, Libby J, Liventsev D, Lockman WS, Long O, LoSecco JM, Lou XC, Lubej M, Lueck T, Luitz S, Luo T, Luppi E, Lusiani A, Lutz AM, MacFarlane DB, MacNaughton J, Mallik U, Manoni E, Marchiori G, Margoni M, Martellotti S, Martinez-Vidal F, Masuda M, Matsuda T, Mattison TS, Matvienko D, McKenna JA, Meadows BT, Merola M, Miyabayashi K, Miyashita TS, Miyata H, Mizuk R, Mohanty GB, Moon HK, Mori T, Muller DR, Müller T, Mussa R, Nakano E, Nakao M, Nanut T, Nath KJ, Nayak M, Neal H, Neri N, Nisar NK, Nishida S, Nugent IM, Oberhof B, Ocariz J, Ogawa S, Ongmongkolkul P, Ono H, Onuchin AP, Onuki Y, Oyanguren A, Pakhlov P, Pakhlova G, Pal B, Palano A, Palombo F, Panduro Vazquez W, Paoloni E, Pardi S, Park H, Passaggio S, Patrignani C, Patteri P, Paul S, Pavelkin I, Payne DJ, Pedlar TK, Peimer DR, Peruzzi IM, Pestotnik R, Piccolo M, Piilonen LE, Pilloni A, Piredda G, Poireau V, Popov V, Porter FC, Posocco M, Prell S, Prepost R, Puccio EMT, Purohit MV, Pushpawela BG, Rama M, Randle-Conde A, Ratcliff BN, Raven G, Resmi PK, Ritchie JL, Ritter M, Rizzo G, Roberts DA, Robertson SH, Röhrken M, Roney JM, Roodman A, Rossi A, Rotondo M, Rozanska M, Russo G, Sacco R, Al Said S, Sakai Y, Salehi M, Sandilya S, Santelj L, Santoro V, Sanuki T, Savinov V, Schneider O, Schnell G, Schroeder T, Schubert KR, Schwanda C, Schwartz AJ, Schwitters RF, Sciacca C, Seddon RM, Seino Y, Sekula SJ, Senyo K, Seon O, Serednyakov SI, Sevior ME, Shebalin V, Shen CP, Shibata TA, Shimizu N, Shiu JG, Simi G, Simon F, Simonetto F, Skovpen YI, Smith JG, Smith AJS, So RY, Sobie RJ, Soffer A, Sokoloff MD, Solodov EP, Solovieva E, Spanier SM, Starič M, Stroili R, Sullivan MK, Sumisawa K, Sumiyoshi T, Summers DJ, Sun L, Takizawa M, Tamponi U, Tanida K, Taras P, Tasneem N, Tenchini F, Tisserand V, Todyshevx KY, Touramanis C, Uchida M, Uglov T, Unno Y, Uno S, Vahsen SE, Varner G, Vasseur G, Va'vra J, Červenkov D, Verderi M, Vitale L, Vorobyev V, Voß C, Wagner SR, Waheed E, Waldi R, Walsh JJ, Wang B, Wang CH, Wang MZ, Wang P, Watanabe Y, Wilson FF, Wilson JR, Wisniewski WJ, Won E, Wormser G, Wright DM, Wu SL, Ye H, Yuan CZ, Yusa Y, Zakharov S, Zallo A, Zani L, Zhang ZP, Zhilich V, Zhukova V, Zhulanov V, Zupanc A. First Evidence for cos2β>0 and Resolution of the Cabibbo-Kobayashi-Maskawa Quark-Mixing Unitarity Triangle Ambiguity. PHYSICAL REVIEW LETTERS 2018; 121:261801. [PMID: 30636113 DOI: 10.1103/physrevlett.121.261801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 08/22/2018] [Indexed: 06/09/2023]
Abstract
We present first evidence that the cosine of the CP-violating weak phase 2β is positive, and hence exclude trigonometric multifold solutions of the Cabibbo-Kobayashi-Maskawa (CKM) Unitarity Triangle using a time-dependent Dalitz plot analysis of B^{0}→D^{(*)}h^{0} with D→K_{S}^{0}π^{+}π^{-} decays, where h^{0}∈{π^{0},η,ω} denotes a light unflavored and neutral hadron. The measurement is performed combining the final data sets of the BABAR and Belle experiments collected at the ϒ(4S) resonance at the asymmetric-energy B factories PEP-II at SLAC and KEKB at KEK, respectively. The data samples contain (471±3)×10^{6}BB[over ¯] pairs recorded by the BABAR detector and (772±11)×10^{6}BB[over ¯] pairs recorded by the Belle detector. The results of the measurement are sin2β=0.80±0.14(stat)±0.06(syst)±0.03(model) and cos2β=0.91±0.22(stat)±0.09(syst)±0.07(model). The result for the direct measurement of the angle β of the CKM Unitarity Triangle is β=[22.5±4.4(stat)±1.2(syst)±0.6(model)]°. The measurement assumes no direct CP violation in B^{0}→D^{(*)}h^{0} decays. The quoted model uncertainties are due to the composition of the D^{0}→K_{S}^{0}π^{+}π^{-} decay amplitude model, which is newly established by performing a Dalitz plot amplitude analysis using a high-statistics e^{+}e^{-}→cc[over ¯] data sample. CP violation is observed in B^{0}→D^{(*)}h^{0} decays at the level of 5.1 standard deviations. The significance for cos2β>0 is 3.7 standard deviations. The trigonometric multifold solution π/2-β=(68.1±0.7)° is excluded at the level of 7.3 standard deviations. The measurement resolves an ambiguity in the determination of the apex of the CKM Unitarity Triangle.
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Fulsom BG, Pedlar TK, Adachi I, Aihara H, Al Said S, Asner DM, Atmacan H, Aulchenko V, Aushev T, Ayad R, Babu V, Badhrees I, Bakich AM, Bansal V, Behera P, Beleño C, Berger M, Bhardwaj V, Bhuyan B, Bilka T, Biswal J, Bondar A, Bonvicini G, Bozek A, Bračko M, Browder TE, Cao L, Červenkov D, Chekelian V, Chen A, Cheon BG, Chilikin K, Cho K, Choi SK, Choi Y, Choudhury S, Cinabro D, Cunliffe S, Dash N, Di Carlo S, Dingfelder J, Doležal Z, Dong TV, Drásal Z, Eidelman S, Epifanov D, Fast JE, Ferber T, Garg R, Gaur V, Gabyshev N, Garmash A, Gelb M, Giri A, Goldenzweig P, Guido E, Haba J, Hayasaka K, Hayashii H, Hirose S, Hou WS, Iijima T, Inami K, Inguglia G, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Jacobs WW, Jeon HB, Jia S, Jin Y, Joffe D, Joo KK, Julius T, Kawasaki T, Kichimi H, Kiesling C, Kim DY, Kim HJ, Kim JB, Kim KT, Kim SH, Kinoshita K, Kodyš P, Korpar S, Kotchetkov D, Križan P, Kroeger R, Krokovny P, Kuhr T, Kulasiri R, Kuzmin A, Kwon YJ, Lange JS, Lee IS, Lee SC, Li LK, Li YB, Li Gioi L, Libby J, Liventsev D, Lubej M, Luo T, Masuda M, Matsuda T, Matvienko D, Merola M, Miyabayashi K, Miyata H, Mizuk R, Mohanty GB, Moon HK, Mori T, Mussa R, Nakao M, Nanut T, Nath KJ, Natkaniec Z, Nayak M, Niiyama M, Nisar NK, Nishida S, Ogawa S, Okuno S, Ono H, Pakhlov P, Pakhlova G, Pal B, Pardi S, Park H, Paul S, Pestotnik R, Piilonen LE, Popov V, Prencipe E, Rabusov A, Ritter M, Rostomyan A, Russo G, Sakai Y, Salehi M, Sandilya S, Santelj L, Sanuki T, Savinov V, Schneider O, Schnell G, Schwanda C, Seino Y, Senyo K, Sevior ME, Shebalin V, Shen CP, Shibata TA, Shiu JG, Shwartz B, Simon F, Singh JB, Sokolov A, Solovieva E, Starič M, Strube JF, Sumihama M, Sumisawa K, Sumiyoshi T, Sutcliffe W, Takizawa M, Tamponi U, Tanida K, Tenchini F, Uchida M, Uglov T, Unno Y, Uno S, Urquijo P, Vahsen SE, Van Hulse C, Van Tonder R, Varner G, Vinokurova A, Vorobyev V, Vossen A, Wang B, Wang CH, Wang P, Wang XL, Watanabe M, Watanuki S, Widmann E, Won E, Ye H, Yin JH, Yuan CZ, Zhang ZP, Zhilich V, Zhukova V, Zhulanov V, Zupanc A. Observation of ϒ(2S)→γη_{b}(1S) Decay. PHYSICAL REVIEW LETTERS 2018; 121:232001. [PMID: 30576207 DOI: 10.1103/physrevlett.121.232001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Indexed: 06/09/2023]
Abstract
We report the observation of ϒ(2S)→γη_{b}(1S) decay based on an analysis of the inclusive photon spectrum of 24.7 fb^{-1} of e^{+}e^{-} collisions at the ϒ(2S) center-of-mass energy collected with the Belle detector at the KEKB asymmetric-energy e^{+}e^{-} collider. We measure a branching fraction of B[ϒ(2S)→γη_{b}(1S)]=(6.1_{-0.7-0.6}^{+0.6+0.9})×10^{-4} and derive an η_{b}(1S) mass of 9394.8_{-3.1-2.7}^{+2.7+4.5} MeV/c^{2}, where the uncertainties are statistical and systematic, respectively. The significance of our measurement is greater than 7 standard deviations, constituting the first observation of this decay mode.
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McBride EE, White TG, Descamps A, Fletcher LB, Appel K, Condamine F, Curry CB, Dallari F, Funk S, Galtier E, Gamboa EJ, Gauthier M, Goede S, Kim JB, Lee HJ, Ofori-Okai BK, Oliver M, Rigby A, Schoenwaelder C, Sun P, Tschentscher T, Witte BBL, Zastrau U, Gregori G, Nagler B, Hastings J, Glenzer SH, Monaco G. Erratum: "Setup for meV-resolution inelastic X-ray scattering measurements and X-ray diffraction at the Matter in Extreme Conditions endstation at the Linac Coherent Light Source" [Rev. Sci. Instrum. 89, 10F104 (2018)]. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2018; 89:129901. [PMID: 30599579 DOI: 10.1063/1.5084054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 12/04/2018] [Indexed: 06/09/2023]
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McBride EE, White TG, Descamps A, Fletcher LB, Appel K, Condamine FP, Curry CB, Dallari F, Funk S, Galtier E, Gamboa EJ, Gauthier M, Goede S, Kim JB, Lee HJ, Ofori-Okai BK, Oliver M, Rigby A, Schoenwaelder C, Sun P, Tschentscher T, Witte BBL, Zastrau U, Gregori G, Nagler B, Hastings J, Glenzer SH, Monaco G. Setup for meV-resolution inelastic X-ray scattering measurements and X-ray diffraction at the Matter in Extreme Conditions endstation at the Linac Coherent Light Source. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2018; 89:10F104. [PMID: 30399942 DOI: 10.1063/1.5039329] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 06/20/2018] [Indexed: 06/08/2023]
Abstract
We describe a setup for performing inelastic X-ray scattering and X-ray diffraction measurements at the Matter in Extreme Conditions (MEC) endstation of the Linac Coherent Light Source. This technique is capable of performing high-, meV-resolution measurements of dynamic ion features in both crystalline and non-crystalline materials. A four-bounce silicon (533) monochromator was used in conjunction with three silicon (533) diced crystal analyzers to provide an energy resolution of ∼50 meV over a range of ∼500 meV in single shot measurements. In addition to the instrument resolution function, we demonstrate the measurement of longitudinal acoustic phonon modes in polycrystalline diamond. Furthermore, this setup may be combined with the high intensity laser drivers available at MEC to create warm dense matter and subsequently measure ion acoustic modes.
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Mo MZ, Chen Z, Li RK, Dunning M, Witte BBL, Baldwin JK, Fletcher LB, Kim JB, Ng A, Redmer R, Reid AH, Shekhar P, Shen XZ, Shen M, Sokolowski-Tinten K, Tsui YY, Wang YQ, Zheng Q, Wang XJ, Glenzer SH. Heterogeneous to homogeneous melting transition visualized with ultrafast electron diffraction. Science 2018; 360:1451-1455. [PMID: 29954977 DOI: 10.1126/science.aar2058] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 05/01/2018] [Indexed: 11/02/2022]
Abstract
The ultrafast laser excitation of matters leads to nonequilibrium states with complex solid-liquid phase-transition dynamics. We used electron diffraction at mega-electron volt energies to visualize the ultrafast melting of gold on the atomic scale length. For energy densities approaching the irreversible melting regime, we first observed heterogeneous melting on time scales of 100 to 1000 picoseconds, transitioning to homogeneous melting that occurs catastrophically within 10 to 20 picoseconds at higher energy densities. We showed evidence for the heterogeneous coexistence of solid and liquid. We determined the ion and electron temperature evolution and found superheated conditions. Our results constrain the electron-ion coupling rate, determine the Debye temperature, and reveal the melting sensitivity to nucleation seeds.
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Guido E, Mussa R, Tamponi U, Aihara H, Al Said S, Asner DM, Atmacan H, Aulchenko V, Aushev T, Ayad R, Babu V, Badhrees I, Bakich AM, Bansal V, Behera P, Berger M, Bhardwaj V, Biswal J, Bondar A, Bonvicini G, Bozek A, Bračko M, Browder TE, Červenkov D, Chekelian V, Chen A, Cheon BG, Chilikin K, Cho K, Choi SK, Choi Y, Choudhury S, Cinabro D, Cunliffe S, Di Carlo S, Doležal Z, Eidelman S, Epifanov D, Fast JE, Ferber T, Fulsom BG, Garg R, Gaur V, Gabyshev N, Garmash A, Gelb M, Giri A, Goldenzweig P, Haba J, Hara T, Hayashii H, Hedges MT, Hou WS, Inami K, Inguglia G, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Jacobs WW, Jeon HB, Jia S, Jin Y, Julius T, Kang KH, Karyan G, Kawasaki T, Kiesling C, Kim DY, Kim JB, Kim KT, Kim SH, Kinoshita K, Kodyš P, Korpar S, Kotchetkov D, Križan P, Kroeger R, Krokovny P, Kulasiri R, Kumar R, Kumita T, Kuzmin A, Kwon YJ, Lee IS, Lee SC, Li LK, Li YB, Li Gioi L, Libby J, Liventsev D, Lubej M, Luo T, MacNaughton J, Masuda M, Matsuda T, Matvienko D, Merola M, Miyabayashi K, Miyata H, Mizuk R, Mohanty GB, Moon HK, Mori T, Nakano E, Nakao M, Nanut T, Nath KJ, Nayak M, Niiyama M, Nishida S, Ogawa S, Ono H, Ostrowicz W, Pakhlova G, Pal B, Pardi S, Park CW, Paul S, Pedlar TK, Pestotnik R, Piilonen LE, Popov V, Rostomyan A, Russo G, Sakai Y, Salehi M, Sanuki T, Schneider O, Schnell G, Schwanda C, Seino Y, Shebalin V, Shen CP, Shibata TA, Shiu JG, Shwartz B, Sokolov A, Starič M, Strube JF, Sumihama M, Sumiyoshi T, Takizawa M, Tanida K, Tenchini F, Uchida M, Uglov T, Unno Y, Usov Y, Van Hulse C, Varner G, Vinokurova A, Wang B, Wang CH, Wang MZ, Wang P, Wang XL, Watanabe M, Watanabe Y, Widmann E, Won E, Ye H, Yelton J, Yuan CZ, Yusa Y, Zakharov S, Zhang ZP, Zhilich V, Zhukova V, Zhulanov V. Observation of ϒ(4S)→η^{'}ϒ(1S). PHYSICAL REVIEW LETTERS 2018; 121:062001. [PMID: 30141661 DOI: 10.1103/physrevlett.121.062001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 07/11/2018] [Indexed: 06/08/2023]
Abstract
We report the first observation of the hadronic transition ϒ(4S)→η^{'}ϒ(1S), using 496 fb^{-1} data collected at the ϒ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e^{+}e^{-} collider. We reconstruct the η^{'} meson through its decays to ρ^{0}γ and to π^{+}π^{-}η, with η→γγ. We measure B(ϒ(4S)→η^{'}ϒ(1S))=[3.43±0.88(stat)±0.21(syst)]×10^{-5}, with a significance of 5.7σ.
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Yelton J, Adachi I, Ahn JK, Aihara H, Al Said S, Asner DM, Atmacan H, Aushev T, Ayad R, Babu V, Badhrees I, Bahinipati S, Bakich AM, Bansal V, Beleño C, Berger M, Bhardwaj V, Bhuyan B, Bilka T, Biswal J, Bondar A, Bonvicini G, Bozek A, Bračko M, Browder TE, Červenkov D, Chekelian V, Chen A, Cheon BG, Chilikin K, Cho K, Choi SK, Choi Y, Choudhury S, Cinabro D, Cunliffe S, Czank T, Dash N, Di Carlo S, Doležal Z, Dong TV, Drásal Z, Eidelman S, Epifanov D, Fast JE, Fulsom BG, Garg R, Gaur V, Gabyshev N, Garmash A, Gelb M, Giri A, Goldenzweig P, Greenwald D, Guido E, Haba J, Hayasaka K, Hayashii H, Hirose S, Hou WS, Inami K, Inguglia G, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Jacobs WW, Jeon HB, Jia S, Jin Y, Joo KK, Julius T, Kaliyar AB, Kang KH, Karyan G, Kato Y, Kiesling C, Kim DY, Kim JB, Kim KT, Kim SH, Kinoshita K, Kodyš P, Korpar S, Kotchetkov D, Križan P, Kroeger R, Krokovny P, Kuhr T, Kumar R, Kuzmin A, Kwon YJ, Lange JS, Lee IS, Lee SC, Li LK, Li YB, Li Gioi L, Libby J, Liventsev D, Lubej M, Luo T, Masuda M, Matsuda T, Matvienko D, McNeil JT, Merola M, Miyabayashi K, Miyata H, Mizuk R, Mohanty GB, Moon HK, Mori T, Mussa R, Nakano E, Nakao M, Nanut T, Nath KJ, Natkaniec Z, Niiyama M, Nisar NK, Nishida S, Ono H, Pakhlov P, Pakhlova G, Pal B, Pardi S, Park H, Paul S, Pedlar TK, Pestotnik R, Piilonen LE, Popov V, Ritter M, Russo G, Sahoo D, Sakai Y, Sandilya S, Santelj L, Sanuki T, Savinov V, Schneider O, Schnell G, Schwanda C, Seino Y, Senyo K, Sevior ME, Shebalin V, Shen CP, Shibata TA, Shiu JG, Shwartz B, Simon F, Sokolov A, Solovieva E, Starič M, Strube JF, Sumihama M, Sumiyoshi T, Suzuki K, Takizawa M, Tamponi U, Tanida K, Tao Y, Tenchini F, Uchida M, Uglov T, Uno S, Urquijo P, Usov Y, Vahsen SE, Van Hulse C, Varner G, Vorobyev V, Vossen A, Wang B, Wang CH, Wang MZ, Wang P, Wang XL, Watanabe M, Watanuki S, Widmann E, Won E, Ye H, Yuan CZ, Yusa Y, Zakharov S, Zhang ZP, Zhilich V, Zhukova V, Zhulanov V. Observation of an Excited Ω^{-} Baryon. PHYSICAL REVIEW LETTERS 2018; 121:052003. [PMID: 30118260 DOI: 10.1103/physrevlett.121.052003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Indexed: 06/08/2023]
Abstract
Using data recorded with the Belle detector, we observe a new excited hyperon, an Ω^{*-} candidate decaying into Ξ^{0}K^{-} and Ξ^{-}K_{S}^{0} with a mass of 2012.4±0.7(stat)±0.6(syst) MeV/c^{2} and a width of Γ=6.4_{-2.0}^{+2.5}(stat)±1.6(syst) MeV. The Ω^{*-} is seen primarily in ϒ(1S),ϒ(2S), and ϒ(3S) decays.
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Jeon KH, Song PS, Kim MJ, Kim JB, Jang HJ, Kim JS, Kim TH, Lee HJ, Park JS, Choi RK, Choi YJ, Lee MM. P3639Long term clinical outcomes of patients with coronary artery aneurysm. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Cho MS, Kim J, Park JK, Kim TH, Lee JM, Park JB, Park HW, Kang KW, Shim JM, Uhm JS, Kim JB, Kim CS, Lee YS, Choi EK, Joung BY. P5796Prevalence and correlates of left atrial enlargement based on left atrial volume index in korean patients with non-valvular atrial fibrillation: data from comparison study of drugs for symptom control. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Lee SY, Jeon KH, Kim MJ, Kim JB, Jang HJ, Kim JS, Lee HJ, Kim TH, Park JS, Choi YJ, Lee MM, Choi RK. P4660The impact of complication of extracorporeal life support for acute myocardial infarction with refractory cardiogenic shock or cardiac arrest. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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