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高能强子对撞机Higgs衰变到双光子末态的寻找
结题报告
批准号：
10975134
项目类别：
面上项目
资助金额：
40.0 万元
负责人：
刘衍文
依托单位：
学科分类：
A2806.在线与离线数据处理
结题年份：
2012
批准年份：
2009
项目状态：
已结题
项目参与者：
卜雪兵、龚谌伟、张冬亮、尹航
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中文摘要
电弱理论对称性破缺机制是当前高能物理上的核心问题之一。标准模型中采用的Higgs机制预言了一个标量粒子(Higgs 玻色子)的存在。除了Higgs的质量在标准模型中是自由参数外，该粒子在强子对撞机上的产生机制和衰变方式都被标准模型精确预言。另一方面，由于与Higgs相关的过程界面都很小，这部分理论还没有得到实验证实。寻找Higgs 粒子是当前强子对撞机实验的重要物理目标之一。由于受到圈图压制，对于质量在100GeV附近的Higgs到双光子衰变道的分支比在0.1%的量级。但是，双光子末态易于观测，而且一旦在这个衰变道发现Higgs粒子，其质量也同时被确定。同时，我们知道标准模型并不完善，对于标准模型的一些自然拓宽可以显著改变Higgs分支比，双光子衰变道可以大大增强。我们计划在D0和ATLAS实验上寻找Higgs双光子衰变。
英文摘要
寻找Higgs粒子， 探索电弱对称性破缺机制是粒子物理近40年来最核心的问题。双光子衰变末态一直被看作是最有希望的强子对撞机上的Higgs发现道之一。最重要的本底是QCD双光子产生过程。目前理论计算还有很大不确定性，所以通常从实验数据中测得。 双光子末态由于本底相对低，末态运动学可以精确测量，是研究初态辐射等QCD效应的重要工具。 我们先后在费米实验室Tevatron对撞机上的D0实验和CERN的LHC上的ATLAS实验上寻找Higgs->gamma gamma信号， 测量双光子QCD产生过程。在ATLAS数据中发现了125 GeV附近的共振峰， 2012年7月4日, CERN召开新闻发布会，公布了"类-Higgs"粒子这一举世瞩目的发现。其中双光子道是最关键的观测道之一。 我们还在更高质量范围寻找引力子的双光子衰变，在一些特定的参数设定下，质量在2TeV以内的引力子在95%的置信度下被排除。
期刊论文列表
专著列表
科研奖励列表
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专利列表
Combined search for the Standard Model Higgs boson in pp collisions at s=7TeV with the ATLAS detector
pp 碰撞中标准模型希格斯玻色子的联合搜索：
pp 碰撞中标准模型希格斯玻色子的联合搜索：DOI：--
发表时间：--
期刊：Phys. Rev. D
影响因子：--
作者：刘衍文
通讯作者：刘衍文
Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC在大型强子对撞机上使用 ATLAS 探测器寻找标准模型希格斯玻色子时观察到的新粒子
在大型强子对撞机上使用 ATLAS 探测器寻找标准模型希格斯玻色子时观察到的新粒子DOI：10.1016/j.physletb.2012.08.020
发表时间：2012-09-17
期刊：PHYSICS LETTERS B
影响因子：4.4
作者：Aad, G.;Abajyan, T.;Zwalinski, L.
通讯作者：Zwalinski, L.
Search for the Standard Model Higgs boson in the diphoton decay channel with 4.9 fb-1 of pp collisions at s =7 TeV with ATLAS在双光子衰变通道中搜索标准模型希格斯玻色子，其 pp 碰撞次数为 4.9 fb-1
在双光子衰变通道中搜索标准模型希格斯玻色子，其 pp 碰撞次数为 4.9 fb-1DOI：--
发表时间：--
期刊：Phys. Rev. Lett.
影响因子：--
作者：刘衍文
通讯作者：刘衍文
DOI：10.1103/physrevlett.102.231801
发表时间：2009-01
期刊：Physical review letters
影响因子：8.6
作者：V. Abazov;B. Abbott;M. Abolins;B. Acharya;M. Adams;T. Adams;E. Aguiló;M. Ahsan;G. Alexeev;G. Alkhazov;A. Alton;G. Alverson;G. Alves;M. Anastasoaie;L. Ancu;T. Andeen;B. Andrieu;M. Anzelc;M. Aoki;Y. Arnoud;M. Arov;M. Arthaud;A. Askew;B. Åsman;A. C. S. Assis Jesus;O. Atramentov;C. Avila;J. Backusmayes;F. Badaud;L. Bagby;B. Baldin;D. Bandurin;P. Banerjee;S. Banerjee;E. Barberis;A. Barfuss;P. Bargassa;P. Baringer;J. Barreto;J. Bartlett;U. Bassler;D. Bauer;S. Beale;A. Bean;M. Begalli;M. Begel;C. Bélanger-Champagne;L. Bellantoni;A. Bellavance;J. Benitez;S. Beri;G. Bernardi;R. Bernhard;I. Bertram;M. Besançon;R. Beuselinck;V. Bezzubov;P. Bhat;V. Bhatnagar;G. Blazey;F. Blekman;S. Blessing;K. Bloom;A. Boehnlein;D. Boline;T. Bolton;E. Boos;G. Borissov;T. Bose;A. Brandt;R. Brock;G. Brooijmans;A. Bross;D. Brown;X. Bu;N. Buchanan;D. Buchholz;M. Buehler;V. Buescher;V. Bunichev;S. Burdin;T. Burnett;C. Buszello;P. Calfayan;B. Calpas;S. Calvet;J. Cammin;M. Carrasco-Lizarraga;E. Carrera;W. Carvalho;B. Casey;H. Castilla-Valdez;S. Chakrabarti;D. Chakraborty;K. Chan;A. Chandra;E. Cheu;D. Cho;S. Choi;B. Choudhary;L. Christofek;T. Christoudias;S. Cihangir;D. Claes;J. Clutter;M. Cooke;W. Cooper;M. Corcoran;F. Couderc;M. Cousinou;S. Crépé-Renaudin;V. Cuplov;D. Cutts;M. Ćwiok;H. da Motta;A. Das;G. Davies;K. De;S. de Jong;E. De La Cruz-Burelo;C. A. de Oliveira Martins;K. Devaughan;F. Déliot;M. Demarteau;R. Demina;D. Denisov;S. Denisov;S. Desai;H. Diehl;M. Diesburg;A. Dominguez;T. Dorland;A. Dubey;L. Dudko;L. Duflot;S. Dugad;D. Duggan;A. Duperrin;S. Dutt;J. Dyer;A. Dyshkant;M. Eads;D. Edmunds;J. Ellison;V. Elvira;Y. Enari;S. Eno;P. Ermolov;M. Escalier;H. Evans;A. Evdokimov;V. Evdokimov;A. Ferapontov;T. Ferbel;F. Fiedler;F. Filthaut;W. Fisher;H. Fisk;M. Fortner;H. Fox;S. Fu;S. Fuess;T. Gadfort;C. Galea;C. García;A. Garcia-Bellido;V. Gavrilov;P. Gay;W. Geist;W. Geng;C. Gerber;Y. Gershtein;D. Gillberg;G. Ginther;B. Gomez;A. Goussiou;P. Grannis;H. Greenlee;Z. Greenwood;E. Gregores;G. Grenier;P. Gris;J. Grivaz;A. Grohsjean;S. Grünendahl;M. Grünewald;F. Guo;J. Guo;G. Gutiérrez;P. Gutierrez;A. Haas;N. Hadley;P. Haefner;S. Hagopian;J. Haley;I. Hall;R. E. Hall;L. Han;K. Harder;A. Harel;J. Hauptman;J. Hays;T. Hebbeker;D. Hedin;J. Hegeman;A. Heinson;U. Heintz;C. Hensel;K. Herner;G. Hesketh;M. Hildreth;R. Hirosky;T. Hoang;J. Hobbs;B. Hoeneisen;M. Hohlfeld;S. Hossain;P. Houben;Y. Hu;Z. Hubacek;N. Huske;V. Hynek;I. Iashvili;R. Illingworth;A. Ito;S. Jabeen;M. Jaffré;S. Jain;K. Jakobs;C. Jarvis;R. Jesik;K. Johns;C. Johnson;M. Johnson;D. Johnston;A. Jonckheere;P. Jonsson;A. Juste;E. Kajfasz;D. Karmanov;P. Kasper;I. Katsanos;V. Kaushik;R. Kehoe;S. Kermiche;N. Khalatyan;A. Khanov;A. Kharchilava;Y. Kharzheev;D. Khatidze;T. Kim;M. Kirby;M. Kirsch;B. Klima;J. Kohli;J. Konrath;A. Kozelov;J. Kraus;T. Kuhl;A. Kumar;A. Kupco;T. Kurca;V. Kuzmin;J. Kvita;F. Lacroix;D. Lam;S. Lammers;G. Landsberg;P. Lebrun;W. Lee;A. Leflat;J. Lellouch;J. Li;L. Li;Q. Li;S. Lietti;J. Lim;J. Lima;D. Lincoln;J. Linnemann;V. Lipaev;R. Lipton;Y. Liu;Z. Liu;A. Lobodenko;M. Lokajicek;P. Love;H. Lubatti;R. Luna-García;A. Lyon;A. Maciel;D. Mackin;R. Madaras;P. Mättig;A. Magerkurth;P. Mal;H. Malbouisson;S. Malik;V. Malyshev;Y. Maravin;B. Martin;R. Mccarthy;M. M. Meijer-M.;A. Melnitchouk;L. Mendoza;P. Mercadante;M. Merkin;K. Merritt;A. Meyer;J. Meyer;J. Mitrevski;R. Mommsen;N. Mondal;R. Moore;T. Moulik;G. Muanza;M. Mulhearn;O. Mundal;L. Mundim;E. Nagy;M. Naimuddin;M. Narain;H. Neal;J. Negret;P. Neustroev;H. Nilsen;H. Nogima;S. Novaes;T. Nunnemann;D. O'Neil;G. Obrant;C. Ochando;D. Onoprienko;N. Oshima;N. Osman;J. Osta;R. Otec;G. Otero y Garzon;M. Owen;M. Padilla;P. Padley;M. Pangilinan;N. Parashar;S. Park;S. Park;J. Parsons;R. Partridge;N. Parua;A. Patwa;G. Pawloski;B. Penning;M. Perfilov;K. Peters;Y. Peters;P. Pétroff;M. Petteni;R. Piegaia;J. Piper;M. Pleier;P. Podesta-Lerma;V. Podstavkov;Y. Pogorelov;M. Pol;P. Polozov;B. Pope;A. Popov;C. Potter;W. Prado Da Silva;H. Prosper;S. Protopopescu;J. Qian;A. Quadt;B. Quinn;A. Rakitine;M. Rangel;K. Ranjan;P. Ratoff;P. Renkel;P. Rich;M. Rijssenbeek;I. Ripp-Baudot;F. Rizatdinova;S. Robinson;R. F. Rodrigues;M. Rominsky;C. Royon;P. Rubinov;R. Ruchti;G. Safronov;G. Sajot;A. Sanchez-Hernandez;M. Sanders;B. Sanghi;G. Savage;L. Sawyer;T. Scanlon;D. Schaile;R. Schamberger;Y. Scheglov;H. Schellman;T. Schliephake;S. Schlobohm;C. Schwanenberger;R. Schwienhorst;J. Sekaric;H. Severini;E. Shabalina;M. Shamim;V. Shary;A. Shchukin;R. K. Shivpuri;V. Siccardi;V. Šimák;V. Sirotenko;P. Skubic;P. Slattery;D. Smirnov;G. Snow;J. Snow;S. Snyder;S. Söldner-Rembold;L. Sonnenschein;A. Sopczak;M. Sosebee;K. Soustruznik;B. Spurlock;J. Stark;V. Stolin;D. Stoyanova;J. Strandberg;S. Strandberg;M. Strang;E. Strauss;M. Strauss;R. Ströhmer;D. Strom;L. Stutte;S. Sumowidagdo;P. Svoisky;A. Sznajder;A. Tanasijczuk;W. Taylor;B. Tiller;F. Tissandier;M. Titov;V. Tokmenin;I. Torchiani;D. Tsybychev;B. Tuchming;C. Tully;P. Tuts;R. Unalan;L. Uvarov;S. Uvarov;S. Uzunyan;B. Vachon;P. J. van den Berg;R. Van Kooten;W. M. V. van Leeuwen;N. Varelas;E. Varnes;I. Vasilyev;P. Verdier;L. Vertogradov;M. Verzocchi;D. Vilanova;F. Villeneuve-Séguier;P. Vint;P. Vokac;M. Voutilainen;R. Wagner;H. Wahl;M. Wang;J. Warchoł;G. Watts;M. Wayne;G. Weber;M. Weber;L. Welty-Rieger;A. Wenger;N. Wermes;M. Wetstein;A. White;D. Wicke;M. Williams;G. Wilson;S. Wimpenny;M. Wobisch;D. Wood;T. Wyatt;Y. Xie;C. Xu;S. Yacoob;R. Yamada;W. Yang;T. Yasuda;Y. Yatsunenko;Z. Ye;H. Yin;K. Yip
通讯作者：V. Abazov;B. Abbott;M. Abolins;B. Acharya;M. Adams;T. Adams;E. Aguiló;M. Ahsan;G. Alexeev;G. Alkhazov;A. Alton;G. Alverson;G. Alves;M. Anastasoaie;L. Ancu;T. Andeen;B. Andrieu;M. Anzelc;M. Aoki;Y. Arnoud;M. Arov;M. Arthaud;A. Askew;B. Åsman;A. C. S. Assis Jesus;O. Atramentov;C. Avila;J. Backusmayes;F. Badaud;L. Bagby;B. Baldin;D. Bandurin;P. Banerjee;S. Banerjee;E. Barberis;A. Barfuss;P. Bargassa;P. Baringer;J. Barreto;J. Bartlett;U. Bassler;D. Bauer;S. Beale;A. Bean;M. Begalli;M. Begel;C. Bélanger-Champagne;L. Bellantoni;A. Bellavance;J. Benitez;S. Beri;G. Bernardi;R. Bernhard;I. Bertram;M. Besançon;R. Beuselinck;V. Bezzubov;P. Bhat;V. Bhatnagar;G. Blazey;F. Blekman;S. Blessing;K. Bloom;A. Boehnlein;D. Boline;T. Bolton;E. Boos;G. Borissov;T. Bose;A. Brandt;R. Brock;G. Brooijmans;A. Bross;D. Brown;X. Bu;N. Buchanan;D. Buchholz;M. Buehler;V. Buescher;V. Bunichev;S. Burdin;T. Burnett;C. Buszello;P. Calfayan;B. Calpas;S. Calvet;J. Cammin;M. Carrasco-Lizarraga;E. Carrera;W. Carvalho;B. Casey;H. Castilla-Valdez;S. Chakrabarti;D. Chakraborty;K. Chan;A. Chandra;E. Cheu;D. Cho;S. Choi;B. Choudhary;L. Christofek;T. Christoudias;S. Cihangir;D. Claes;J. Clutter;M. Cooke;W. Cooper;M. Corcoran;F. Couderc;M. Cousinou;S. Crépé-Renaudin;V. Cuplov;D. Cutts;M. Ćwiok;H. da Motta;A. Das;G. Davies;K. De;S. de Jong;E. De La Cruz-Burelo;C. A. de Oliveira Martins;K. Devaughan;F. Déliot;M. Demarteau;R. Demina;D. Denisov;S. Denisov;S. Desai;H. Diehl;M. Diesburg;A. Dominguez;T. Dorland;A. Dubey;L. Dudko;L. Duflot;S. Dugad;D. Duggan;A. Duperrin;S. Dutt;J. Dyer;A. Dyshkant;M. Eads;D. Edmunds;J. Ellison;V. Elvira;Y. Enari;S. Eno;P. Ermolov;M. Escalier;H. Evans;A. Evdokimov;V. Evdokimov;A. Ferapontov;T. Ferbel;F. Fiedler;F. Filthaut;W. Fisher;H. Fisk;M. Fortner;H. Fox;S. Fu;S. Fuess;T. Gadfort;C. Galea;C. García;A. Garcia-Bellido;V. Gavrilov;P. Gay;W. Geist;W. Geng;C. Gerber;Y. Gershtein;D. Gillberg;G. Ginther;B. Gomez;A. Goussiou;P. Grannis;H. Greenlee;Z. Greenwood;E. Gregores;G. Grenier;P. Gris;J. Grivaz;A. Grohsjean;S. Grünendahl;M. Grünewald;F. Guo;J. Guo;G. Gutiérrez;P. Gutierrez;A. Haas;N. Hadley;P. Haefner;S. Hagopian;J. Haley;I. Hall;R. E. Hall;L. Han;K. Harder;A. Harel;J. Hauptman;J. Hays;T. Hebbeker;D. Hedin;J. Hegeman;A. Heinson;U. Heintz;C. Hensel;K. Herner;G. Hesketh;M. Hildreth;R. Hirosky;T. Hoang;J. Hobbs;B. Hoeneisen;M. Hohlfeld;S. Hossain;P. Houben;Y. Hu;Z. Hubacek;N. Huske;V. Hynek;I. Iashvili;R. Illingworth;A. Ito;S. Jabeen;M. Jaffré;S. Jain;K. Jakobs;C. Jarvis;R. Jesik;K. Johns;C. Johnson;M. Johnson;D. Johnston;A. Jonckheere;P. Jonsson;A. Juste;E. Kajfasz;D. Karmanov;P. Kasper;I. Katsanos;V. Kaushik;R. Kehoe;S. Kermiche;N. Khalatyan;A. Khanov;A. Kharchilava;Y. Kharzheev;D. Khatidze;T. Kim;M. Kirby;M. Kirsch;B. Klima;J. Kohli;J. Konrath;A. Kozelov;J. Kraus;T. Kuhl;A. Kumar;A. Kupco;T. Kurca;V. Kuzmin;J. Kvita;F. Lacroix;D. Lam;S. Lammers;G. Landsberg;P. Lebrun;W. Lee;A. Leflat;J. Lellouch;J. Li;L. Li;Q. Li;S. Lietti;J. Lim;J. Lima;D. Lincoln;J. Linnemann;V. Lipaev;R. Lipton;Y. Liu;Z. Liu;A. Lobodenko;M. Lokajicek;P. Love;H. Lubatti;R. Luna-García;A. Lyon;A. Maciel;D. Mackin;R. Madaras;P. Mättig;A. Magerkurth;P. Mal;H. Malbouisson;S. Malik;V. Malyshev;Y. Maravin;B. Martin;R. Mccarthy;M. M. Meijer-M.;A. Melnitchouk;L. Mendoza;P. Mercadante;M. Merkin;K. Merritt;A. Meyer;J. Meyer;J. Mitrevski;R. Mommsen;N. Mondal;R. Moore;T. Moulik;G. Muanza;M. Mulhearn;O. Mundal;L. Mundim;E. Nagy;M. Naimuddin;M. Narain;H. Neal;J. Negret;P. Neustroev;H. Nilsen;H. Nogima;S. Novaes;T. Nunnemann;D. O'Neil;G. Obrant;C. Ochando;D. Onoprienko;N. Oshima;N. Osman;J. Osta;R. Otec;G. Otero y Garzon;M. Owen;M. Padilla;P. Padley;M. Pangilinan;N. Parashar;S. Park;S. Park;J. Parsons;R. Partridge;N. Parua;A. Patwa;G. Pawloski;B. Penning;M. Perfilov;K. Peters;Y. Peters;P. Pétroff;M. Petteni;R. Piegaia;J. Piper;M. Pleier;P. Podesta-Lerma;V. Podstavkov;Y. Pogorelov;M. Pol;P. Polozov;B. Pope;A. Popov;C. Potter;W. Prado Da Silva;H. Prosper;S. Protopopescu;J. Qian;A. Quadt;B. Quinn;A. Rakitine;M. Rangel;K. Ranjan;P. Ratoff;P. Renkel;P. Rich;M. Rijssenbeek;I. Ripp-Baudot;F. Rizatdinova;S. Robinson;R. F. Rodrigues;M. Rominsky;C. Royon;P. Rubinov;R. Ruchti;G. Safronov;G. Sajot;A. Sanchez-Hernandez;M. Sanders;B. Sanghi;G. Savage;L. Sawyer;T. Scanlon;D. Schaile;R. Schamberger;Y. Scheglov;H. Schellman;T. Schliephake;S. Schlobohm;C. Schwanenberger;R. Schwienhorst;J. Sekaric;H. Severini;E. Shabalina;M. Shamim;V. Shary;A. Shchukin;R. K. Shivpuri;V. Siccardi;V. Šimák;V. Sirotenko;P. Skubic;P. Slattery;D. Smirnov;G. Snow;J. Snow;S. Snyder;S. Söldner-Rembold;L. Sonnenschein;A. Sopczak;M. Sosebee;K. Soustruznik;B. Spurlock;J. Stark;V. Stolin;D. Stoyanova;J. Strandberg;S. Strandberg;M. Strang;E. Strauss;M. Strauss;R. Ströhmer;D. Strom;L. Stutte;S. Sumowidagdo;P. Svoisky;A. Sznajder;A. Tanasijczuk;W. Taylor;B. Tiller;F. Tissandier;M. Titov;V. Tokmenin;I. Torchiani;D. Tsybychev;B. Tuchming;C. Tully;P. Tuts;R. Unalan;L. Uvarov;S. Uvarov;S. Uzunyan;B. Vachon;P. J. van den Berg;R. Van Kooten;W. M. V. van Leeuwen;N. Varelas;E. Varnes;I. Vasilyev;P. Verdier;L. Vertogradov;M. Verzocchi;D. Vilanova;F. Villeneuve-Séguier;P. Vint;P. Vokac;M. Voutilainen;R. Wagner;H. Wahl;M. Wang;J. Warchoł;G. Watts;M. Wayne;G. Weber;M. Weber;L. Welty-Rieger;A. Wenger;N. Wermes;M. Wetstein;A. White;D. Wicke;M. Williams;G. Wilson;S. Wimpenny;M. Wobisch;D. Wood;T. Wyatt;Y. Xie;C. Xu;S. Yacoob;R. Yamada;W. Yang;T. Yasuda;Y. Yatsunenko;Z. Ye;H. Yin;K. Yip
Measurement of direct photon pair production cross sections in ppbar collisions at sqrt(s) = 1.96 TeVsqrt(s) = 1.96 TeV 时 ppbar 碰撞中直接光子对产生横截面的测量
sqrt(s) = 1.96 TeV 时 ppbar 碰撞中直接光子对产生横截面的测量DOI：--
发表时间：--
期刊：Physics Letters B
影响因子：4.4
作者：刘衍文
通讯作者：刘衍文
ATLAS实验探测器Phase 2升级
- 批准号：11961141014
- 项目类别：国际(地区)合作与交流项目
- 资助金额：3350万元
- 批准年份：2019
- 负责人：刘衍文
- 依托单位：
强子对撞机上的W+W-产生截面测量与反常耦合研究
- 批准号：11175175
- 项目类别：面上项目
- 资助金额：80.0万元
- 批准年份：2011
- 负责人：刘衍文
- 依托单位：
国内基金
海外基金
