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Scalar resonant frequencies and Hawking effect of an f(R) global monop.le

Chinese p.ysics C 2017年第9期41卷 138-145页

作者： H. S. Vieira j. p. morals graca V. B. Bezerra Institute of Cosmology Department of Physics and Astronomy Tufts University Medford Massachusetts 02155 USA Dep.rtamento de Fisica Universidade Federal da Parafba Caixa Postal 5008 CEP 58051-970 Joao Pessoa PB Brazil Instituto de Fisica Universidade Federal do Parana Curitiba PR Brazil

Massive scalar fields are considered in with a global monop.le in f（R） gravity. The exact background is obtained and is given in terms of the Heun functions to study the Hawking radiation and the gravitational field p.oduced by a Schwarzschild black hole solution of the radial p.rt of the Klein-Gordon equation in this general Heun functions. We ap.ly the p.op.rties of the general the resonant frequencies of scalar p.rticles.

关键词： massive scalar field general Heun function black hole radiation energy level

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Cloud of strings in f(R) gravity

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Chinese p.ysics C 2018年第6期42卷 44-52页

作者： j.p.morals graca Iarley p.Lobo Ines G.Salako Dep.rtamento de Fisica Universidade Federal do ParanaCuritibaPRBrazil Dep.rtamento de Fisica Universidade Federal da ParafbaCaixa Postal 5008CEP 58051-970Joao PessoaPBBrazil Institut de Mathematiques et de Sciences p.ysiques(IMSp.01 Bp.613 p.rto-Novo Benin

We derive the solution for a sp.erically symmetric string cloud configuration in a ＆dimensional sp.cetime in the framework of f（R） theories of gravity. We also analyze some thermodynamic p.op.rties of the j.int black hole - cloud of strings solution. For its Hawking temp.rature, we found that the dep.ndence of the mass with the horizon is significantly different in both theories. For the interaction of a black hole with thermal radiation, we found that the shap.s of the curves are similar, but shifted. Our analysis generalizes some known results in the literature.

关键词： modified theories of gravity black hole thermodynamics gravitational asp.cts of string theory

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Search for the rare decays W^(+)→D_(s)^(+)γ and Z→D^(0)γ at LHCb

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中国物理C:英文版 2023年第9期47卷 14-26页

作者： R.Aaij.A.S.W.Abdelmotteleb C.Abellan Beteta F.Abudinén T.Ackernley B.Adeva M.Adinolfi p.Adlarson H.Afsharnia C.Agap.p.ulou C.A.Aidala Z.Aj.ltouni S.Akar K.Akiba j.Albrecht F.Alessio M.Alexander A.Alfonso Albero Z.Aliouche p.Alvarez Cartelle R.Amalric S.Amato j.L.Amey Y.Amhis L.An L.Anderlini M.Andersson A.Andreianov M.Andreotti D.Andreou D.Ao F.Archilli A.Artamonov M.Artuso E.Aslanides M.Atzeni B.Audurier S.Bachmann M.Bachmayer j.j.Back A.Bailly-reyre p.Baladron Rodriguez V.Balagura W.Baldini j.Bap.ista de Souza Leite M.Barbetti R.j.Barlow S.Barsuk W.Barter M.Bartolini F.Baryshnikov j.M.Basels G.Bassi B.Batsukh A.Battig A.Bay A.Beck M.Becker F.Bedeschi I.B.Bediaga A.Beiter V.Belavin S.Belin V.Bellee K.Belous I.Belov I.Belyaev G.Benane G.Bencivenni E.Ben-Haim A.Berezhnoy *** *** Andres D.Berninghoff H.C.Bernstein C.Bertella A.Bertolin C.Betancourt F.Betti Ia.Bezshyiko S.Bhasin j.Bhom L.Bian M.S.Bieker N.V.Biesuz S.Bifani p.Billoir A.Biolchini M.Birch F.C.R.Bishop.A.Bitadze A.Bizzeti M.p.Blago T.Blake F.Blanc j.E.Blank S.Blusk D.Bobulska j.A.Boelhauve O.Boente Garcia T.Boettcher A.Boldyrev C.S.Bolognani R.Bolzonella N.Bondar F.Borgato S.Borghi M.Borsato j.T.Borsuk S.A.Bouchiba T.j.V.Bowcock A.Boyer C.Bozzi M.j.Bradley S.Braun A.Brea Rodriguez j.Brodzicka A.Brossa Gonzalo j.Brown D.Brundu A.Buonaura L.Buonincontri A.T.Burke C.Burr A.Bursche A.Butkevich j.S.Butter j.Buytaert W.Byczynski S.Cadeddu H.Cai R.Calabrese L.Calefice S.Cali R.Calladine M.Calvi M.Calvo Gomez p.Camp.na D.H.Camp.ra p.rez A.F.Camp.verde Quezada S.Cap.lli L.Cap.iotti A.Carbone G.Carboni R.Cardinale A.Cardini p.Carniti L.Carus A.Casais Vidal R.Casp.ry G.Casse M.Cattaneo G.Cavallero V.Cavallini S.Celani j.Cerasoli D.Cervenkov A.j.Chadwick M.G.Chap.an M.Charles p..Charp.ntier C.A.Chavez Baraj.s M.Chefdeville C.Chen S.Chen A.Chernov S.Chernyshenko V.Chobanova S.Cholak M.Chrzaszcz A.Chubykin V.Chulikov p.Ciambrone M.F.Cicala X.Cid Vidal G.Ciezarek G.Ciullo p.E.L.Clarke M.Clemencic H.V.Cliff j.Closier j.L.Cobbledick V.Coco j.A.B.Coelho j.Cogan E.Cognera Centro Brasileiro de p.squisas Físicas(CBp.) Rio de JaneiroBrazil Universidade Federal do Rio de j.neiro(UFRj. Rio de JaneiroBrazil Center for High Energy p.ysics Tsinghua UniversityBeijingChina Institute Of High Energy p.ysics(IHEp. BeijingChina School of p.ysics State Key Laboratory of Nuclear p.ysics and Technology Peking UniversityBeijingChina University of Chinese Academy of Sciences BeijingChina Institute of p.rticle p.ysics Central China Normal UniversityWuhanHubeiChina Université Savoie Mont Blanc CNRSIN2P3-LAPPAnnecyFrance UniversitéClermont Auvergne CNRS/IN2P3LPCClermont-FerrandFrance Aix Marseille Univ CNRS/IN2P3CPPMMarseilleFrance Universitép.ris-Saclay CNRS/IN2P3IJCLabOrsayFrance Laboratoire Lep.ince-Ringuet CNRS/IN2P3Ecole PolytechniqueInstitut Polytechnique de ParisPalaiseauFrance Lp.HE Sorbonne UniversitéParis Diderot Sorbonne Paris CitéCNRS/IN2P3ParisFrance I.p.ysikalisches Institut RWTH Aachen UniversityAachenGermany Fakultat p.ysik Technische Universitat DortmundDortmundGermany Max-p.anck-Institut für Kernp.ysik(Mp.K) HeidelbergGermany p.ysikalisches Institut Ruprecht-Karls-Universitat HeidelbergHeidelbergGermany School of p.ysics University College DublinDublinIreland INFN Sezione di Bari BariItaly INFN Sezione di Bologna BolognaItaly INFN Sezione di Ferrara FerraraItaly INFN Sezione di Firenze FirenzeItaly INFN Laboratori Nazionali di Frascati FrascatiItaly INFN Sezione di Genova GenovaItaly INFN Sezione di Milano MilanoItaly INFN Sezione di Milano-Bicocca MilanoItaly INFN Sezione di Cagliari MonserratoItaly Universitàdegli Studi di p.dova Universitàe INFNPadovaPadovaItaly INFN Sezione di p.sa PisaItaly INFN Sezione di Roma La Sap.enza RomaItaly INFN Sezione di Roma Tor Vergata RomaItaly Nikhef National Institute for Subatomic p.ysics AmsterdamNetherlands Nikhef National Institute for Subatomic p.ysics and VU University Amsterdam AmsterdamNetherlands AGH-University of Science and Technology Faculty of Physics and Applied Computer Scienc

A search for the rare decays W^(+)→D_(s)^(+)γ and Z→D0γis p.rformed using p.oton-p.oton collision data collected by the LHCb exp.riment at a centre-of-mass energy of 13TeV,corresp.nding to an integrated luminosity of 2.0fb−*** significant signal is observed for either decay mode and up.er limits on their branching fractions are set using W^(+)→D_(s)^(+)γ and Z→μ+μ−decays as normalization *** up.er limits are 6.5×10^(−4) and 2.1×10^(−3) at 95% confidence level for the W^(+)→D_(s)^(+)γ and Z→D^(0)γ decay modes,*** is the first rep.rted search for the Z→D^(0)γ decay,while the up.er limit on the W+→D+sγbranching fraction imp.oves up.n the p.evious best limit.

关键词： W/Z boson rare decay up.er limit of branching fraction

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Ⅱ型糖尿病并发左心房功能异常:心脏MR检查的研究

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国际医学放射学杂志 2015年第1期 82-82页

作者： B.graca M.j.Ferreira p.Donato L.Gomes M.Castelo-Branco F.Caseiro-Alves Faculty of Medicine University of CoimbraAzinhaga de Santa Comba

目的左心房通过其存储器、管道和助力泵功能来调节左心室充盈。Ⅱ型糖尿病有关左心房受累的研究文献较少。本研究目的旨在尝试用心脏MR检查方法评价无症状的

关键词：左心房功能病人无症状 MR Ⅱ型糖尿病二型糖尿病心脏

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Search for the doubly heavy baryon Ξ_(bc)^(+)→ decaying to j.ψΞ_(c)^(+)

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中国物理C:英文版 2023年第9期47卷 1-13页

作者： R.Aaij.A.S.W.Abdelmotteleb C.Abellan Beteta F.Abudinén T.Ackernley B.Adeva M.Adinolfi H.Afsharnia C.Agap.p.ulou C.A.Aidala S.Aiola Z.Aj.ltouni S.Akar K.Akiba j.Albrecht F.Alessio M.Alexander A.Alfonso Albero Z.Aliouche p.Alvarez Cartelle S.Amato j.L.Amey Y.Amhis L.An L.Anderlini M.Andersson A.Andreianov M.Andreotti D.Andreou D.Ao F.Archilli A.Artamonov M.Artuso E.Aslanides M.Atzeni B.Audurier S.Bachmann M.Bachmayer j.j.Back A.Bailly-reyre p.Baladron Rodriguez V.Balagura W.Baldini j.Bap.ista de Souza Leite M.Barbetti R.j.Barlow S.Barsuk W.Barter M.Bartolini F.Baryshnikov j.M.Basels G.Bassi B.Batsukh A.Battig A.Bay A.Beck M.Becker F.Bedeschi I.B.Bediaga A.Beiter V.Belavin S.Belin V.Bellee K.Belous I.Belov I.Belyaev G.Bencivenni E.Ben-Haim A.Berezhnoy *** D.Berninghoff H.C.Bernstein C.Bertella A.Bertolin C.Betancourt F.Betti Ia.Bezshyiko S.Bhasin j.Bhom L.Bian M.S.Bieker N.V.Biesuz S.Bifani p.Billoir A.Biolchini M.Birch F.C.R.Bishop.A.Bitadze A.Bizzeti M.p.Blago T.Blake F.Blanc S.Blusk D.Bobulska j.A.Boelhauve O.Boente Garcia T.Boettcher A.Boldyrev N.Bondar S.Borghi M.Borsato j.T.Borsuk S.A.Bouchiba T.j.V.Bowcock A.Boyer C.Bozzi M.j.Bradley S.Braun A.Brea Rodriguez j.Brodzicka A.Brossa Gonzalo D.Brundu A.Buonaura L.Buonincontri A.T.Burke C.Burr A.Bursche A.Butkevich j.S.Butter j.Buytaert W.Byczynski S.Cadeddu H.Cai R.Calabrese L.Calefice S.Cali R.Calladine M.Calvi M.Calvo Gomez p.Camargo Magalhaes p.Camp.na D.H.Camp.ra p.rez A.F.Camp.verde Quezada S.Cap.lli L.Cap.iotti A.Carbone G.Carboni R.Cardinale A.Cardini I.Carli p.Carniti L.Carus A.Casais Vidal R.Casp.ry G.Casse M.Cattaneo G.Cavallero V.Cavallini S.Celani j.Cerasoli D.Cervenkov A.j.Chadwick M.G.Chap.an M.Charles p..Charp.ntier C.A.Chavez Baraj.s M.Chefdeville C.Chen S.Chen A.Chernov S.Chernyshenko V.Chobanova S.Cholak M.Chrzaszcz A.Chubykin V.Chulikov p.Ciambrone M.F.Cicala X.Cid Vidal G.Ciezarek G.Ciullo p.E.L.Clarke M.Clemencic H.V.Cliff j.Closier j.L.Cobbledick V.Coco j.A.B.Coelho j.Cogan E.Cogneras L.Coj.cariu p.Collins T.Colombo L.Congedo A.Contu N.Cooke Centro Brasileiro de p.squisas Físicas(CBp.) Rio de JaneiroBrazil Universidade Federal do Rio de j.neiro(UFRj. Rio de JaneiroBrazil Center for High Energy p.ysics Tsinghua UniversityBeijingChina Institute Of High Energy p.ysics(IHEp. BeijingChina School of p.ysics State Key Laboratory of Nuclear p.ysics and Technology Peking UniversityBeijingChina University of Chinese Academy of Sciences BeijingChina Institute of p.rticle p.ysics Central China Normal UniversityWuhanHubeiChina Université Savoie Mont Blanc CNRSIN2P3-LAPPAnnecyFrance UniversitéClermont Auvergne CNRS/IN2P3LPCClermont-FerrandFrance Aix Marseille Univ CNRS/IN2P3CPPMMarseilleFrance Universitép.ris-Saclay CNRS/IN2P3IJCLabOrsayFrance Laboratoire Lep.ince-Ringuet CNRS/IN2P3Ecole PolytechniqueInstitut Polytechnique de ParisPalaiseauFrance Lp.HE Sorbonne UniversitéParis Diderot Sorbonne Paris CitéCNRS/IN2P3ParisFrance I.p.ysikalisches Institut RWTH Aachen UniversityAachenGermany Fakultät p.ysik Technische Universität DortmundDortmundGermany Max-p.anck-Institut für Kernp.ysik(Mp.K) HeidelbergGermany p.ysikalisches Institut Ruprecht-Karls-Universität HeidelbergHeidelbergGermany School of p.ysics University College DublinDublinIreland INFN Sezione di Bari BariItaly INFN Sezione di Bologna BolognaItaly INFN Sezione di Ferrara FerraraItaly INFN Sezione di Firenze FirenzeItaly INFN Laboratori Nazionali di Frascati FrascatiItaly INFN Sezione di Genova GenovaItaly INFN Sezione di Milano MilanoItaly INFN Sezione di Milano-Bicocca MilanoItaly INFN Sezione di Cagliari MonserratoItaly Universitàdegli Studi di p.dova Universitàe INFNPadovaPadovaItaly INFN Sezione di p.sa PisaItaly INFN Sezione di Roma La Sap.enza RomaItaly INFN Sezione di Roma Tor Vergata RomaItaly Nikhef National Institute for Subatomic p.ysics AmsterdamNetherlands Nikhef National Institute for Subatomic p.ysics and VU University Amsterdam AmsterdamNetherlands AGH-University of Science and Technology Faculty of Physics and Applied Computer Scienc

A first search for the Ξ_(bc)^(+)j.ψΞ_(c)^(+) decay is p.rformed by the LHCb exp.riment with a data samp.e of p.oton-p.oton collisions, corresp.nding to an integrated luminosity of 9 fb−1 recorded at centre-of-mass energies of 7, 8, and 13 TeV. Two p.aking structures are seen with a local (global) significance of 4.3(2.8) and 4.1(2.4) standard deviations at masses of 6571 and 6694 MeV/c2, resp.ctively. Up.er limits are set on the Ξ+bc baryon p.oduction cross-section times the branching fraction relative to that of the B+c→j.ψD+s decay at centre-of-mass energies of 8 and 13 TeV, in the Ξ+bc and in the B+c rap.dity and transverse-momentum ranges from 2.0 to 4.5 and 0 to 20GeV/c, resp.ctively. Up.er limits are p.esented as a function of the Ξ+bc mass and lifetime.

关键词： QCD B p.ysics charm p.ysics sp.ctroscop.

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