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Modelling the unexpected dynamics of cOVID-19 in manaus,Brazil

Infectious Disease Modelling 2024年第2期9卷 557-568页

作者： Daihai He Yael Artzy-Randrup salihu s.Musa Tiago Gräf felipe Naveca Lewi stone department of Applied mathematics Hong Kong Polytechnic UniversityHong Kong SARChina department of Theoretical and computational Ecology IBEDUniversity of AmsterdamAmsterdamNetherlands department of Genomics and computational Biology University of Massachusetts Chan Medical SchoolWorcesterMA01605USA department of mathematics Aliko Dangote University of Science and TechnologyKanoNigeria Instituto Gonçalo Moniz FiocruzSalvadorBahiaBrazil Instituto Leônidas e maria deane FiocruzManausBrazil mathematical sciences School of ScienceRMIT UniversityMelbourneAustralia Biomathematics Unit School of ZoologyFaculty of Life SciencesTel Aviv UniversityTel AvivIsrael

In late march 2020,sARs-coV-2 arrived in manaus,Brazil,and rapidly developed into a large-scale epidemic that collapsed the local health system and resulted in extreme death *** key studies reported that∼76%of residents of manaus were infected(attack rate AR≃76%)by October 2020,suggesting protective herd immunity had been *** this,an unexpected second wave of cOVID-19 struck again in November and proved to be larger than the first,creating a catastrophe for the unprepared *** has been suggested that this could be possible if the second wave was driven by ***,it is widely reported that reinfections were at a low rate(before the emergence of Omicron),and reinfections tend to be ***,we use novel methods to model the epidemic from mortality data without considering reinfection-caused deaths and evaluate the impact of interventions to explain why the second wave *** method fits a“flexible”reproductive numberR_(0)(t)that changes over the epidemic,and it is demonstrated that the method can successfully reconstruct R_(0)(t)from simulated *** manaus,the method finds AR≃34%by October 2020 for the first wave,which is far less than required for herd immunity yet in-line with seroprevalence *** work is complemented by a two-strain *** genomic data,the model estimates transmissibility of the new P.1 virus lineage as 1.9 times higher than that of the ***,an age class model variant that considers the high mortality rates of older adults show very similar *** models thus provide a reasonable explanation for the two-wave dynamics in manaus without the need to rely on large reinfection rates,which until now have only been found in negligible to moderate numbers in recent surveillance efforts.

关键词： Modelling cOVID-19 Reproduction number Herd immunity Reinfection

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Analysis of the Role of syntactic complexity in students’ Reading comprehension: A Teacher’s Perspective

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Journal of contemporary Educational Research 2024年第8期8卷 253-264页

作者： ma.Leticia Jose c.Basilan Daniel Reds G.de sagun depEd Batangas Province BatangasPhilippines Batangas state University BatangasPhilippines Rizal college of Taal Taal BatangasBatangasPhilippines

This study examines the role of the syntactic complexity of the text in the reading comprehension skills of *** the qualitative method of research,this paper used structured interview questions as the main data-gathering *** language teachers from coral na Munti National High school were selected as the respondents of the *** of the study suggests that the syntactic complexity of the text affects the reading comprehension of the *** found it challenging to understand the message that the author conveyed if he or she used a large number of phrases and clauses in one ***,the complex sentence syntactic structure was deemed the most challenging for students to *** overcome said challenges in comprehending text,various reading intervention programs were utilized by *** interventions include focused or targeted instruction and the implementation of the Project dear,suggested by the department of *** programs were proven to help students improve their comprehension as well as their knowledge in syntactical structure of *** study underscores the importance of selecting appropriate reading materials and implementing suitable reading intervention programs to enhance students’comprehension skills.

关键词： Reading comprehension syntactic complexity Reading intervention program syntactic structure

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classification of Rings Associated with the Genus of clean Graphs

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Algebra colloquium 2024年第3期31卷 451-466页

作者： V.Ramanathan c.selvaraj Aaqib Altaf s.Pirzada department of mathematics Periyar UniversitySalem 636011Tamil NaduIndi department of mathematics University of KashmirHazratbalSrinagarKashmirIndia

Let R be a ring(not necessarily commutative)with identity 1 and let cL(R)be its clean *** this paper,we investigate the genus number of the compact Riemann surface in which cL(R)can be embedded and explicitly determine all commutative rings R(up to isomorphism)such that cL(R)has genus at most *** is shown that for any Artinian ring R,cL(R)is a projective graph if and only if R is isomorphic to ***,we determine all isomorphism classes of commutative rings whose clean graphs have crosscap two.

关键词： clean graph commutative ring planar graph genus crosscap

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Efficacy of Huoxue Qianyang Qutan Recipe on essential hypertension:A randomized,double-blind,placebo-controlled trial

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Journal of Integrative Medicine 2024年第4期22卷 484-492页

作者： Jun Xie Yu-long ma Ming-tai Gui Lei Yao Jian-hua Li Ming-zhu Wang Xun-jie Zhou Yi-fan Wang Ming-yi Zhao Hui cao Bo Lu de-yu fu department of cardiology Yueyang Hospital of Integrated Traditional Chinese and Western MedicineShanghai University of Traditional Chinese MedicineShanghai 200437China shanghai University of Traditional chinese Medicine Shanghai 200120China

Background:Hypertension,a prevalent disease,is a significant risk factor for coronary heart *** Qianyang Qutan Recipe (HQQR),a traditional chinese herbal remedy,has been used for treating hypertension over several ***:This study assesses HQQR’s efficacy for controlling blood pressure among patients with hypertension related to blood stasis,yang hyperactivity and ***,setting,participants and interventions:A randomized controlled trial was conducted at the Yueyang Hospital of Integrated Traditional chinese and Western Medicine,shanghai University of Traditional chinese Medicine,china,from July 2020 to June *** components of HQQR were identified using thin-layer chromatography and high-performance liquid *** aged18–80 years,exhibiting traditional chinese medicine syndromes of blood stasis,yang hyperactivity or phlegm,along with grades 1 or 2 hypertension,were randomly categorized into two *** intervention group was given HQQR granules alongside conventional hypertension treatment,while the control group was given placebo granules in addition to conventional treatment for 12 *** outcome measures:The primary outcome was clinic blood pressure,whereas secondary outcomes included metabolic indices (e.g.,homeostasis model assessment of insulin resistance[HOma-IR],total cholesterol[Tc],low-density lipoprotein cholesterol and triglyceride),target organ damage indices (left ventricular mass index and urinary albumin creatinine ratio[UAcR]) and inflammation indices(interleukin-6[IL-6]and high-sensitivity c-reactive protein[hs-cRP]).Results:HQQR’s primary components were identified as salvianolic acid B,emodin and ferulic *** the 216 participants (108 in each group),compared to the control,the intervention group exhibited significant improvements (Pclinic systolic blood pressure ([136.24±7.63]vs[130.06±8.50]mmHg),clinic diastolic blood pressure ([84.34±8.72]vs[80.46±6.05]mmHg),home systol

关键词： Huoxue Qianyang Qutan Recipe Hypertension Target organ damage Glycolipid metabolism Inflammatory chinese herbal compound

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sTcf conceptual design report (Volume 1): Physics & detector

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frontiers of physics 2024年第1期19卷 1-154页

作者： M.Achasov X.c.Ai L.P.An R.Aliberti Q.An X.Z.Bai Y.Bai O.Bakina A.Barnyakov V.Blinov V.Bobrovnikov D.Bodrov A.Bogomyagkov A.Bondar I.Boyko Z.H.Bu f.M.cai H.cai J.J.cao Q.H.cao X.cao Z.cao Q.chang K.T.chao D.Y.chen H.chen H.X.chen J.f.chen K.chen L.L.chen P.chen s.L.chen s.M.chen s.chen s.P.chen W.chen X.chen X.f.chen X.R.chen Y.chen Y.Q.chen H.Y.cheng J.cheng s.cheng T.G.cheng J.P.Dai L.Y.Dai X.c.Dai D.dedovich A.denig I.denisenko J.M.Dias D.Z.Ding L.Y.Dong W.H.Dong V.Druzhinin D.s.Du Y.J.Du Z.G.Du L.M.Duan D.Epifanov Y.L.fan s.s.fang Z.J.fang G.fedotovich c.Q.feng X.feng Y.T.feng J.L.fu J.Gao Y.N.Gao P.s.Ge c.Q.Geng L.s.Geng A.Gilman L.Gong T.Gong B.Gou W.Gradl J.L.Gu A.Guevara L.c.Gui A.Q.Guo f.K.Guo J.c.Guo J.Guo Y.P.Guo Z.H.Guo A.Guskov K.L.Han L.Han M.Han X.Q.Hao J.B.He s.Q.He X.G.He Y.L.He Z.B.He Z.X.Heng B.L.Hou T.J.Hou Y.R.Hou c.Y.Hu H.M.Hu K.Hu R.J.Hu W.H.Hu X.H.Hu Y.c.Hu J.Hua G.s.Huang J.s.Huang M.Huang Q.Y.Huang W.Q.Huang X.T.Huang X.J.Huang Y.B.Huang Y.s.Huang N.Hüsken V.Ivanov Q.P.Ji J.J.Jia s.Jia Z.K.Jia H.B.Jiang J.Jiang s.Z.Jiang J.B.Jiao Z.Jiao H.J.Jing X.L.Kang X.s.Kang B.c.Ke M.Kenzie A.Khoukaz I.Koop E.Kravchenko A.Kuzmin Y.Lei E.Levichev c.H.Li c.Li D.Y.Li f.Li G.Li G.Li H.B.Li H.Li H.N.Li H.J.Li H.L.Li J.M.Li J.Li L.Li L.Li L.Y.Li N.Li P.R.Li R.H.Li s.Li T.Li W.J.Li X.Li X.H.Li X.Q.Li X.H.Li Y.Li Y.Y.Li Z.J.Li H.Liang J.H.Liang Y.T.Liang G.R.Liao L.Z.Liao Y.Liao c.X.Lin D.X.Lin X.s.Lin B.J.Liu c.W.Liu D.Liu f.Liu G.M.Liu H.B.Liu J.Liu J.J.Liu J.B.Liu K.Liu K.Y.Liu K.Liu L.Liu Q.Liu s.B.Liu T.Liu X.Liu Y.W.Liu Y.Liu Y.L.Liu Z.Q.Liu Z.Y.Liu Z.W.Liu I.Logashenko Y.Long c.G.Lu J.X.Lu N.Lu Q.f.Lü Y.Lu Y.Lu Z.Lu P.Lukin f.J.Luo T.Luo X.f.Luo Y.H.Luo H.J.Lyu X.R.Lyu J.P.ma P.ma Y.ma Y.M.ma f.maas s.malde D.matvienko Z.X.Meng R.Mitchell A.Nefediev Y.Nefedov s.L.Olsen Q.Ouyang P.Pakhlov G.Pakhlova X.Pan Y.Pan E.Passemar Y.P.Pei H.P.Peng L.Peng X.Y.Peng X.J.Peng K.Peters s.Pivovarov E.Pyata B.B.Qi Y.Q.Qi W.B.Qian Y.Qian c.f.Qiao J.J.Qin J.J.Qin L.Q.Qin X.s.Qin T.L.Qiu J.Rademacker c.f.Redmer H.Y.sang Anhui University Hefei 230039China Beihang University Beijing 100191China Budker Institute of Nuclear Physics Novosibirsk 630090Russia cAs Key Laboratory of Theoretical Physics Institute of Theoretical PhysicsChinese Academy of SciencesBeijing 100190China cavendish Laboratory University of CambridgeJJ Thomson AveCambridge CB30HEUnited Kingdom central china Normal University Wuhan 430079China central south University Changsha 410083China china University of Geosciences Wuhan 430074China china University of Mining and Technology Xuzhou 221116China École Polytechnique fédérale de Lausanne(EPfL) LausanneSwitzerland fudan University Shanghai 200433China Goethe University frankfurt D-60325 Frankfurt am MainGermany Guangxi Normal University Guilin 541004China Guangxi Uninversity Nanning 530004China Hangzhou Institute for Advanced study UCASHangzhou 310024China Hebei Normal University Shijiazhuang 050024China Hebei University Baoding 071002China Hefei University of Technology Hefei 230601China Helmholtz Institute mainz Staudinger Weg 18D-55099 MainzGermany Henan Normal University Xinxiang 453007China Henan University Kaifeng 475004China High Energy Physics center Chung-Ang UniversitySeoul 06974Korea Higher school of Economy 11 Pokrovsky Bulvar Moscow 109028Russia Huangshan University Huangshan 245000China Hubei University of Automotive Technology Shiyan 442002China Hunan Normal University Changsha 410081China Hunan University of science and Technology Xiangtan 411201China Hunan University Changsha 410082China Indiana University BloomingtonIndiana 47405USA Inner Mongolia University Hohhot 010021China Institute of Advanced science facilities Shenzhen 518107China Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China Institute of Physics Academia SinicaTaipeiTaiwan 11529China Institute of Theoretical Physics Chinese Academy of SciencesBeijing 100190China Jilin University Changch

The superτ-charm facility(sTcf)is an electron–positron collider proposed by the chinese particle physics *** is designed to operate in a center-of-mass energy range from 2 to 7 GeV with a peak luminosity of 0.5×10^(35) cm^(–2)·s^(–1) or *** sTcf will produce a data sample about a factor of 100 larger than that of the presentτ-charm factory—the BEPcII,providing a unique platform for exploring the asymmetry of matter-antimatter(charge-parity violation),in-depth studies of the internal structure of hadrons and the nature of non-perturbative strong interactions,as well as searching for exotic hadrons and physics beyond the standard *** sTcf project in china is under development with an extensive R&D *** document presents the physics opportunities at the sTcf.describes conceptual designs of the sTcf.detector system,and discusses future plans for detector R&D and physics case studies.

关键词： electron–positron collider tau-charm region high luminosity sTcf.detector conceptual design

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constructing Al@c-sn pellet anode without passivation layer for lithium-ion battery

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International Journal of Minerals,Metallurgy and materials 2024年第3期31卷 552-561页

作者： Kangzhe cao sitian Wang Yanan He Jiahui ma Ziwei Yue Huiqiao Liu college of chemistry and chemical Engineering Xinyang Normal UniversityXinyang 464000China Xinyang Key Laboratory of Low-carbon Energy materials Xinyang 464000China Henan Province Key Laboratory of Utilization of Non-Metallic Mineral in the south of Henan Xinyang 464000China

Al is considered as a promising lithium-ion battery(LIBs)anode materials owing to its high theoretical capacity and appropri-ate lithation/de-lithation ***,its inevitable volume expansion causes the electrode structure instability,leading to poor cyclic ***’s worse,the natural Al2O3 layer on commercial Al pellets is always existed as a robust insulating barrier for elec-trons,which brings the voltage dip and results in low reversible ***,this work synthesized core-shell Al@c-sn pellets for LIBs by a plus-minus *** this proposal,the natural Al2O3 passivation layer is eliminated when annealing the pre-introduced sncl2,meanwhile,polydopamine-derived carbon is introduced as dual functional shell to liberate the fresh Al core from re-oxidization and alle-viate the volume *** from the addition of c-sn shell and the elimination of the Al2O3 passivation layer,the as-prepared Al@c-sn pellet electrode exhibits little voltage dip and delivers a reversible capacity of 1018.7 mah·g^(-1) at 0.1 A·g^(-1) and 295.0 mah·g^(-1) at 2.0 A·g^(-1)(after 1000 cycles),***,its diffusion-controlled capacity is muchly improved compared to those of its counterparts,confirming the well-designed nanostructure contributes to the rapid Li-ion diffusion and further enhances the lithium storage activity.

关键词： lithium-ion battery high-performance anode aluminum passivation layer plus-minus strategy

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fe-N_(x) sites coupled with core-shell fes@c nanoparticles to boost the oxygen catalysis for rechargeable Zn-air batteries

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Journal of Energy chemistry 2024年第3期90卷 565-577,I0013页

作者： Katam srinivas Zhuo chen Anran chen fei ma Ming-qiang Zhu Yuanfu chen school of Integrated circuit science and Engineering and State Key Laboratory of Electronic Thin Films and Integrated DevicesUniversity of Electronic Science and Technology of ChinaChengdu 610054SichuanChina college of Mechanical and Electronic Engineering Northwest A&F UniversityYangling 712100ShaanxiChina school of materials and Energy Yunnan UniversityKunming 650091YunnanChina

The development of efficient single-atom catalysts(sAcs) for the oxygen reduction reaction(ORR)remains a formidable challenge,primarily due to the symmetric charge distribution of metal singleatom sites(M-N_(4)).To address such issue,herein,fe-N_(x) sites coupled synergistic catalysts fabrication strategy is presented to break the uniform electronic distribution,thus enhancing the intrinsic catalytic ***,atomically dispersed fe-N_(x) sites supported on N/s-doped mesoporous carbon(Nsc)coupled with fes@c core-shell nanoparticles(fAs-Nsc@950) is synthesized by a facile hydrothermal reaction and subsequent *** to the presence of an in situ-grown conductive graphitic layer(shell),the fes nanoparticles(core) effectively adjust the electronic structure of single-atom fe sites and facilitate the ORR kinetics via short/long-range coupling ***,fAs-Nsc@950displays a more positive half-wave potential(E_(1/2)) of 0.871 V with a significantly boosted ORR kinetics(Tafel slope=52.2 mV dec^(-1)),outpacing the commercial Pt/c(E_(1/2)=0.84 V and Tafel slope=54.6 mV dec^(-1)).As a bifunctional electrocatalyst,it displays a smaller bifunctional activity parameter(ΔE) of 0.673 V,surpassing the Pt/c-RuO_(2) combination(ΔE=0.724 V).Besides,the fAs-Nsc@950-based zincair battery(ZAB) displays superior power density,specific capacity,and long-term cycling performance to the Pt/c-Ir/c-based *** work significantly contributes to the field by offering a promising strategy to enhance the catalytic activity of sAcs for ORR,with potential implications for energy conversion and storage technologies.

关键词： fe-N_(x)sites core-shell fes@c synergistic interactions Oxygen reduction reaction Zn-air battery

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Photoionisation detection of a single Er3+ ion with sub-100-ns time resolution

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National science Review 2024年第4期11卷 38-45页

作者： Yangbo Zhang Wenda fan Jiliang Yang Hao Guan Qi Zhang Xi Qin changkui Duan Gabriele G.de Boo Brett c.Johnson Jeffrey c.Mc callum matthew J.sellars sven Rogge chunming Yin Jiangfeng Du cAs Key Laboratory of Microscale magnetic Resonance and school of Physical sciences University of Science and Technology of China cAs center for Excellence in Quantum Information and Quantum Physics University of Science and Technology of China Hefei National Laboratory University of Science and Technology of China centre of Excellence for Quantum computation and communication Technology School of Physics University of New South Wales centre of Excellence for Quantum computation and communication Technology School of Engineering RMIT University centre of Excellence for Quantum computation and communication Technology School of Physics University of Melbourne centre of Excellence for Quantum computation and communication Technology Research School of Physics and Engineering Australian National University

Efficient detection of single optical centres in solids is essential for quantum information processing, sensing and single-photon generation *** this work,we use radio-frequency（Rf） reflectometry to electrically detect the photoionisation induced by a single Er3+ion in *** high bandwidth and sensitivity of the Rf reflectometry provide sub-100-ns time resolution for the photoionisation *** this technique,the optically excited state lifetime of a single Er3+ion in a si nano-transistor is measured for the first time to be 0.49±0.04μ*** results demonstrate an efficient approach for detecting a charge state change induced by Er excitation and *** approach could be used for fast readout of other single optical centres in solids and is attractive for large-scale integrated optical quantum systems thanks to the multi-channel Rf reflectometry demonstrated with frequency multiplexing techniques.

关键词： single optical centres erbium ions Rf reflectometry photoionisation detection

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Amplitude analysis of the decays D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)

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chinese Physics c 2024年第8期48卷 6-33页

作者： M.Ablikim M.N.Achasov P.Adlarson O.Afedulidis X.c.Ai R.Aliberti A.Amoroso Q.An Y.Bai O.Bakina I.Balossino Y.Ban H.-R.Bao V.Batozskaya K.Begzsuren N.Berger M.Berlowski M.Bertani D.Bettoni f.Bianchi E.Bianco A.Bortone I.Boyko R.A.Briere A.Brueggemann H.cai X.cai A.calcaterra G.f.cao N.cao s.A.cetin J.f.chang W.L.chang G.R.che G.chelkov c.chen c.H.chen chao chen G.chen H.s.chen M.L.chen s.J.chen s.L.chen s.M.chen T.chen X.R.chen X.T.chen Y.B.chen Y.Q.chen Z.J.chen Z.Y.chen s.K.choi X.chu G.cibinetto f.cossio J.J.cui H.L.Dai J.P.Dai A.Dbeyssi R.E.de Boer D.dedovich c.Q.deng Z.Y.deng A.denig I.denysenko M.destefanis f.de Mori B.fang s.s.fang W.X.fang Y.fang Y.Q.fang R.farinelli L.fava f.feldbauer G.felici c.Q.feng J.H.feng Y.T.feng K.fischer M.fritsch c.D.fu J.L.fu Y.W.fu H.Gao Y.N.Gao Yang Gao s.Garbolino I.Garzia P.T.Ge Z.W.Ge c.Geng E.M.Gersabeck B.Ding X.X.Ding Y.Ding Y.Ding J.Dong L.Y.Dong M.Y.Dong X.Dong M.c.Du s.X.Du Z.H.Duan P.Egorov Y.H.fan J.fang JA.Gilman K.Goetzen L.Gong W.X.Gong W.Gradl s.Gramigna M.Greco M.H.Gu Y.T.Gu c.Y.Guan Z.L.Guan A.Q.Guo L.B.Guo M.J.Guo R.P.Guo Y.P.Guo A.Guskov J.Gutierrez K.L.Han T.T.Han X.Q.Hao f.A.Harris K.K.He K.L.He f.H.Heinsius c.H.Heinz Y.K.Heng c.Herold T.Holtmann P.c.Hong G.Y.Hou X.T.Hou Y.R.Hou Z.L.Hou B.Y.Hu H.M.Hu J.f.Hu T.Hu Y.Hu G.s.Huang K.X.Huang L.Q.Huang X.T.Huang Y.P.Huang T.Hussain f.H\"olzken N.H\"usken N.in der Wiesche M.Irshad J.Jackson s.Janchiv J.H.Jeong Q.Ji Q.P.Ji W.Ji X.B.Ji X.L.Ji Y.Y.Ji X.Q.Jia Z.K.Jia D.Jiang H.B.Jiang P.c.Jiang s.s.Jiang T.J.Jiang X.s.Jiang Y.Jiang J.B.Jiao J.K.Jiao Z.Jiao s.Jin Y.Jin M.Q.Jing X.M.Jing T.Johansson s.Kabana N.Kalantar-Nayestanaki X.L.Kang X.s.Kang M.Kavatsyuk B.c.Ke V.Khachatryan A.Khoukaz R.Kiuchi O.B.Kolcu B.Kopf M.Kuessner X.Kui A.Kupsc W.K\"uhn J.J.Lane P.Larin L.Lavezzi T.T.Lei Z.H.Lei H.Leithoff M.Lellmann T.Lenz c.Li c.Li c.H.Li cheng Li D.M.Li f.Li G.Li H.Li H.B.Li H.J.Li H.N.Li Hui Li J.R.Li J.s.Li K.Li L.J.Li L.K.Li Lei Li M.H.Li P.R.Li Q.M.Li Q.X.Li R.Li s.X.Li T.Li W.D.Li W.G.Li X.Li X.H.Li X.L.Li X.Y.Li Y Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Beihang University Beijing 100191China Bochum Ruhr-University D-44780 BochumGermany Budker Institute of Nuclear Physics sB RAs(BINP) Novosibirsk 630090Russia carnegie Mellon University PittsburghPennsylvania 15213USA central china Normal University Wuhan 430079China central south University Changsha 410083China china center of Advanced science and Technology Beijing 100190China china University of Geosciences Wuhan 430074China chung-Ang University Seoul06974Republic of Korea cOMsATs University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000 LahorePakistan fudan University Shanghai 200433China GsI Helmholtzcentre for Heavy Ion Research GmbH D-64291 DarmstadtGermany Guangxi Normal University Guilin 541004China Guangxi University Nanning 530004China Hangzhou Normal University Hangzhou 310036China Hebei University Baoding 071002China Helmholtz Institute mainz Staudinger Weg 18D-55099 MainzGermany Henan Normal University Xinxiang 453007China Henan University Kaifeng 475004China Henan University of science and Technology Luoyang 471003China Henan University of Technology Zhengzhou 450001China Huangshan college Huangshan 245000China Hunan Normal University Changsha 410081China Hunan University Changsha 410082China Indian Institute of Technology madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INfN Laboratori Nazionali di frascati INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly INfN Laboratori Nazionali di frascati INFN Sezione di PerugiaI-06100PerugiaItaly INfN Laboratori Nazionali di frascati University of PerugiaI-06100PerugiaItaly INfN sezione di ferrara INFN Sezione di FerraraI-44122FerraraItaly INfN sezione di ferrara University of FerraraI-44122FerraraItaly Inner Mongolia University Hohhot 010021China Institute of Modern Physics Lanzhou 730000China Institute of Physics and Technology Peace Avenue 54BUlaanbaatar 13330Mongolia Instituto de A

Using e^(+)e^(−)annihilation data corresponding to an integrated luminosity of 2.93 fb^(−1)taken at the center-of-mass energy√s=3.773 GeV with the BEsIII detector,a joint amplitude analysis is performed on the decays D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η).The fit fractions of individual components are obtained,and large interferences among the dominant components of the decays D^(0)→a_(1)(1260)π,D^(0)→π(1300)π,D^(0)→ρ(770)ρ(770),and D^(0)→2(ππ)_(s)are observed in both *** the obtained amplitude model,the cP-even fractions of D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η)are determined to be(75.2±1.1_(stat).±1.5_(syst.))%and(68.9±1.5_(stat).±2.4_(syst.))%,*** branching fractions of D^(0)→π^(+)π^(−)π^(+)π^(−)and D^(0)→π^(+)π^(−)π^(0)π^(0)(non-η)are measured to be(0.688±0.010_(stat.)±0.010_(syst.))%and(0.951±0.025_(stat.)±0.021_(syst.))%,*** amplitude analysis provides an important model for the binning strategy in measuring the strong phase parameters of D^(0)→4πwhen used to determine the cKM angleγ(ϕ_(3))via the B^(−)→DK^(−)decay.

关键词： BEsIII D^(0)meson decays amplitude analysis cP-even fraction

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determination of the number ofψ(3686)events taken at BEsⅢ

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chinese Physics c 2024年第9期48卷 8-20页

作者： M.Ablikim M.N.Achasov P.Adlarson O.Afedulidis X.c.Ai R.Aliberti A.Amoroso Q.An Y.Bai O.Bakina I.Balossino Y.Ban H.-R.Bao V.Batozskaya K.Begzsuren N.Berger M.Berlowski M.Bertani D.Bettoni f.Bianchi E.Bianco A.Bortone I.Boyko R.A.Briere A.Brueggemann H.cai X.cai A.calcaterra G.f.cao N.cao s.A.cetin J.f.chang G.R.che G.chelkov c.chen c.H.chen chao chen G.chen H.s.chen H.Y.chen M.L.chen s.J.chen s.L.chen s.M.chen T.chen X.R.chen X.T.chen Y.B.chen Y.Q.chen Z.J.chen Z.Y.chen s.K.choi G.cibinetto f.cossio J.J.cui H.L.Dai J.P.Dai A.Dbeyssi R.E.de Boer D.dedovich c.Q.deng Z.Y.deng A.denig I.denysenko M.destefanis f.de Mori B.Ding X.X.Ding Y.Ding Y.Ding J.Dong L.Y.Dong M.Y.Dong X.Dong M.c.Du s.X.Du Y.Y.Duan Z.H.Duan P.Egorov Y.H.fan J.fang J.fang s.s.fang W.X.fang Y.fang Y.Q.fang R.farinelli L.fava f.feldbauer G.felici c.Q.feng J.H.feng Y.T.feng M.fritsch c.D.fu J.L.fu Y.W.fu H.Gao X.B.Gao Y.N.Gao Yang Gao s.Garbolino I.Garzia L.Ge P.T.Ge Z.W.Ge c.Geng E.M.Gersabeck A.Gilman K.Goetzen L.Gong W.X.Gong W.Gradl s.Gramigna M.Greco M.H.Gu Y.T.Gu c.Y.Guan Z.L.Guan A.Q.Guo L.B.Guo M.J.Guo R.P.Guo Y.P.Guo A.Guskov J.Gutierrez K.L.Han T.T.Han f.Hanisch X.Q.Hao f.A.Harris K.K.He K.L.He f.H.Heinsius c.H.Heinz Y.K.Heng c.Herold T.Holtmann P.c.Hong G.Y.Hou X.T.Hou Y.R.Hou Z.L.Hou B.Y.Hu H.M.Hu J.f.Hu s.L.Hu T.Hu Y.Hu G.s.Huang K.X.Huang L.Q.Huang X.T.Huang Y.P.Huang T.Hussain f.Hölzken N.Hüsken N.in der Wiesche J.Jackson s.Janchiv J.H.Jeong Q.Ji Q.P.Ji W.Ji X.B.Ji X.L.Ji Y.Y.Ji X.Q.Jia Z.K.Jia D.Jiang H.B.Jiang P.c.Jiang s.s.Jiang T.J.Jiang X.s.Jiang Y.Jiang J.B.Jiao J.K.Jiao Z.Jiao s.Jin Y.Jin M.Q.Jing X.M.Jing T.Johansson s.Kabana N.Kalantar-Nayestanaki X.L.Kang X.s.Kang M.Kavatsyuk B.c.Ke V.Khachatryan A.Khoukaz R.Kiuchi O.B.Kolcu B.Kopf M.Kuessner X.Kui N.Kumar A.Kupsc W.Kühn J.J.Lane P.Larin L.Lavezzi T.T.Lei Z.H.Lei M.Lellmann T.Lenz c.Li c.Li c.H.Li cheng Li D.M.Li f.Li G.Li H.B.Li H.J.Li H.N.Li Hui Li J.R.Li J.s.Li Ke Li L.J.Li L.K.Li Lei Li M.H.Li P.R.Li Q.M.Li Q.X.Li R.Li s.X.Li T.Li W.D.Li W.G.Li X.Li X.H.Li X.L.Li X.Z.Li Xi Institute of High Energy Physics Beijing 100049China Beihang University Beijing 100191China Bochum Ruhr-University D-44780BochumGermany Budker Institute of Nuclear Physics sB RAs(BINP) Novosibirsk 630090Russia carnegie Mellon University PittsburghPennsylvania 15213USA central china Normal University Wuhan 430079China central south University Changsha 410083China china center of Advanced science and Technology Beijing 100190China china University of Geosciences Wuhan 430074China chung-Ang University Seoul06974Republic of Korea cOMsATs University Islamabad Lahore CampusDefence RoadOff Raiwind Road54000LahorePakistan fudan University Shanghai 200433China GsI Helmholtzcentre for Heavy Ion Research GmbH D-64291DarmstadtGermany Guangxi Normal University Guilin 541004China Guangxi University Nanning 530004China Hangzhou Normal University Hangzhou 310036China Hebei University Baoding 071002China Helmholtz Institute mainz Staudinger Weg 18D-55099MainzGermany Henan Normal University Xinxiang 453007China Henan University Kaifeng 475004China Henan University of science and Technology Luoyang 471003China Henan University of Technology Zhengzhou 450001China Huangshan college Huangshan 245000China Hunan Normal University Changsha 410081China Hunan University Changsha 410082China Indian Institute of Technology madras Chennai 600036India Indiana University BloomingtonIndiana 47405USA INfN Laboratori Nazionali di frascati (A)INFN Laboratori Nazionali di FrascatiI-00044FrascatiItaly(B)INFN Sezione di PerugiaI-06100PerugiaItaly(C)University of PerugiaI-06100PerugiaItaly INfN sezione di ferrara (A)INFN Sezione di FerraraI-44122FerraraItaly(B)University of FerraraI-44122FerraraItaly Inner Mongolia University Hohhot 010021China Institute of Modern Physics Lanzhou 730000China Institute of Physics and Technology Peace Avenue 54BUlaanbaatar 13330Mongolia Instituto de Alta Investigación Universidad de TarapacáCasilla 7DArica 1000000Chile Jilin University Changchun 130012China Joha

The number ofψ(3686)events collected by the BEsⅢdetector during the 2021 run period is determined to be(2259.3±11.1)×10~6 by counting inclusiveψ(3686)hadronic *** uncertainty is systematic and the statistical uncertainty is ***,the numbers ofψ(3686)events collected during the 2009 and 2012run periods are updated to be(107.7±0.6)×10~6 and(345.4±2.6)×10~6,*** numbers are consistent with the previous measurements within one standard *** total number ofψ(3686)events in the three data samples is(2712.4±14.3)×10~6.

关键词： ψ(3686) inclusive process Hadronic events BEsⅢdetector

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