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A search is performed for long-lived neutral particles decaying into a photon and invisible particles. An example of such a signature is the decay of the lightest neutralino with nonzero lifetime into a gravitino and a photon in gauge-mediated supersymmetry, with the neutralino as the next-to-lightest supersymmetric particle and the gravitino as the lightest. The search uses events containing photons, missing transverse energy, and jets. The impact parameter of the photon relative to the beam-beam collision point can be reconstructed using converted photons. The method is sensitive to lifetimes of the order of 0.1 to ins. The data sample corresponds to an integrated luminosity of 2.23 fb(-1) in pp collisions at root s = 7 TeV, recorded in the first part of 2011 by the CMS experiment at the LHC. Cross-section limits are presented on pair production for such particles, each of which decays into a photon and invisible particles. The observed 95% confidence level limits vary between 0.11 and 0.21 pb, depending on the neutral particle lifetime.
Search for new physics with long-lived particles decaying to photons and missing energy in pp collisions at root s=7 TeV / Chatrchyan, S., Khachatryan, V., Sirunyan, A.M., Tumasyan, A., Adam, W., Aguilo, E., Bergauer, T., Dragicevic, M., Eroe, J., Fabjan, C., Friedl, M., Fruehwirth, R., Ghete, V.M., Hammer, J., Hoermann, N., Hrubec, J., Jeitler, M., Kiesenhofer, W., Knuenz, V., Krammer, M., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - ELETTRONICO. - 11:172:(2012), pp. 1-29. [10.1007/JHEP11(2012)172]
Search for new physics with long-lived particles decaying to photons and missing energy in pp collisions at root s=7 TeV
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Coarasa;D. D'Enterria;A. Dabrowski;A. D. Roeck;S. D. Guida;M. Dobson;N. Dupont Sagorin;A. Elliott Peisert;B. Frisch;W. Funk;G. Georgiou;M. Giffels;D. Gigi;K. Gill;D. Giordano;M. Giunta;F. Glege;R. G. Garrido;P. Govoni;S. Gowdy;R. Guida;M. Hansen;P. Harris;C. Hartl;J. Harvey;B. Hegner;A. Hinzmann;V. Innocente;P. Janot;K. Kaadze;E. Karavakis;K. Kousouris;P. Lecoq;Y. . . J.;LENZI, PIERGIULIO;C. Lourenco;N. Magini;T. Maeki;M. Malberti;L. Malgeri;M. Mannelli;L. Masetti;F. Meijers;S. Mersi;E. Meschi;R. Moser;M. U. Mozer;M. Mulders;P. Musella;E. Nesvold;T. Orimoto;L. Orsini;E. P. Cortezon;E. Perez;L. Perrozzi;A. Petrilli;A. Pfeiffer;M. Pierini;M. Pimiae;D. Piparo;G. Polese;L. Quertenmont;A. Racz;W. Reece;J. R. Antunes;G. Rolandi;C. Rovelli;M. Rovere;H. Sakulin;F. Santanastasio;C. Schaefer;C. Schwick;I. Segoni;S. Sekmen;A. Sharma;P. Siegrist;P. Silva;M. Simon;P. Sphicas;D. Spiga;A. Tsirou;G. I. Veres;J. R. Vlimant;H. K. Woehri;S. D. Worm;W. D. Zeuner;W. Bertl;K. Deiters;W. Erdmann;K. Gabathuler;R. Horisberger;Q. Ingram;H. C. Kaestli;S. Koenig;D. Kotlinski;U. Langenegger;F. Meier;D. Renker;T. Rohe;J. Sibille;L. Baeni;P. Bortignon;M. A. Buchmann;B. Casal;N. Chanon;A. Deisher;G. Dissertori;M. Dittmar;M. Donega;M. Duenser;J. Eugster;K. Freudenreich;C. Grab;D. Hits;P. Lecomte;W. Lustermann;A. C. Marini;P. M. Ruiz;N. Mohr;F. Moortgat;C. Naegeli;P. Nef;F. Nessi Tedaldi;F. Pandolfi;L. Pape;F. Pauss;M. Peruzzi;F. J. Ronga;M. Rossini;L. Sala;A. K. Sanchez;A. Starodumov;B. Stieger;M. Takahashi;L. Tauscher;A. Thea;K. Theofilatos;D. Treille;C. Urscheler;R. Wallny;H. A. Weber;L. Wehrli;C. Amsler;V. Chiochia;S. D. Visscher;C. Favaro;M. I. Rikova;B. M. Mejias;P. Otiougova;P. Robmann;H. Snoek;S. Tupputi;M. Verzetti;Y. H. Chang;K. H. Chen;C. M. Kuo;S. W. Li;W. Lin;Z. K. Liu;Y. J. Lu;D. Mekterovic;A. P. Singh;R. Volpe;S. S. Yu;P. Bartalini;P. Chang;Y. H. Chang;Y. W. Chang;Y. Chao;K. F. Chen;C. Dietz;U. Grundler;W. . . S.;Y. Hsiung;K. Y. Kao;Y. J. Lei;R. . . S.;D. Majumder;E. Petrakou;X. Shi;J. G. Shiu;Y. M. Tzeng;X. Wan;M. Wang;A. Adiguzel;M. N. Bakirci;S. Cerci;C. Dozen;I. Dumanoglu;E. Eskut;S. Girgis;G. Gokbulut;E. Gurpinar;I. Hos;E. E. Kangal;T. Karaman;G. Karapinar;A. K. Topaksu;G. Onengut;K. Ozdemir;S. Ozturk;A. Polatoz;K. Sogut;D. S. Cerci;B. Tali;H. Topakli;L. N. Vergili;M. Vergili;I. V. Akin;T. Aliev;B. Bilin;S. Bilmis;M. Deniz;H. Gamsizkan;A. M. Guler;K. Ocalan;A. Ozpineci;M. Serin;R. Sever;U. E. Surat;M. Yalvac;E. Yildirim;M. Zeyrek;E. Gulmez;B. Isildak;M. Kaya;O. Kaya;S. Ozkorucuklu;N. Sonmez;K. Cankocak;L. Levchuk;F. Bostock;J. J. Brooke;E. Clement;D. Cussans;H. Flacher;R. Frazier;J. Goldstein;M. Grimes;G. P. Heath;H. F. Heath;L. Kreczko;S. Metson;D. M. Newbold;K. Nirunpong;A. Poll;S. Senkin;V. J. Smith;T. Williams;L. Basso;K. W. Bell;A. Belyaev;C. Brew;R. M. Brown;D. J. A.;J. A. Coughlan;K. Harder;S. Harper;J. Jackson;B. W. Kennedy;E. Olaiya;D. Petyt;B. C. Radburn Smith;C. H. Shepherd Themistocleous;I. R. Tomalin;W. J. Womersley;R. Bainbridge;G. Ball;R. Beuselinck;O. Buchmuller;D. Colling;N. Cripps;M. Cutajar;P. Dauncey;G. Davies;M. D. Negra;W. Ferguson;J. Fulcher;D. Futyan;A. Gilbert;A. G. Bryer;G. Hall;Z. Hatherell;J. Hays;G. Iles;M. Jarvis;G. Karapostoli;L. Lyons;A. . . M.;J. Marrouche;B. Mathias;R. Nandi;J. Nash;A. Nikitenko;A. Papageorgiou;J. Pela;M. Pesaresi;K. Petridis;M. Pioppi;D. M. Raymond;S. Rogerson;A. Rose;M. J. Ryan;C. Seez;P. Sharp;A. Sparrow;M. Stoye;A. Tapper;M. V. Acosta;T. Virdee;S. Wakefield;N. Wardle;T. Whyntie;M. Chadwick;J. E. Cole;P. R. Hobson;A. Khan;P. Kyberd;D. Leggat;D. Leslie;W. Martin;I. D. Reid;P. Symonds;L. Teodorescu;M. Turner;K. Hatakeyama;H. Liu;T. Scarborough;O. Charaf;C. Henderson;P. Rumerio;A. Avetisyan;T. Bose;C. Fantasia;A. Heister;J. S. John;P. Lawson;D. Lazic;J. Rohlf;D. Sperka;L. Sulak;J. Alimena;S. Bhattacharya;D. Cutts;A. Ferapontov;U. Heintz;S. Jabeen;G. Kukartsev;E. Laird;G. Landsberg;M. Luk;M. Narain;D. Nguyen;M. Segala;T. Sinthuprasith;T. Speer;K. V. Tsang;R. Breedon;G. Breto;M. C. De;S. Chauhan;M. Chertok;J. Conway;R. Conway;P. T. Cox;J. Dolen;R. Erbacher;M. Gardner;R. Houtz;W. Ko;A. Kopecky;R. Lander;T. Miceli;D. Pellett;F. Ricci tam;B. Rutherford;M. Searle;J. Smith;M. Squires;M. Tripathi;R. V. Sierra;V. Andreev;D. Cline;R. Cousins;J. Duris;S. Erhan;P. Everaerts;C. Farrell;J. Hauser;M. Ignatenko;C. Jarvis;C. Plager;G. Rakness;P. Schlein;P. Traczyk;V. Valuev;M. Weber;J. Babb;R. Clare;M. E. Dinardo;J. Ellison;J. W. Gary;F. Giordano;G. Hanson;G. Y. Jeng;H. Liu;O. R. Long;A. Luthra;H. Nguyen;S. Paramesvaran;J. Sturdy;S. Sumowidagdo;R. Wilken;S. Wimpenny;W. Andrews;J. G. Branson;G. B. Cerati;S. Cittolin;D. Evans;F. Golf;A. Holzner;R. Kelley;M. Lebourgeois;J. Letts;I. Macneill;B. Mangano;S. Padhi;C. Palmer;G. Petrucciani;M. Pieri;M. Sani;V. Sharma;S. Simon;E. Sudano;M. Tadel;Y. Tu;A. Vartak;S. Wasserbaech;F. Wuerthwein;A. Yagil;J. Yoo;D. Barge;R. Bellan;C. Campagnari;M. D'Alfonso;T. Danielson;K. Flowers;P. Geffert;J. Incandela;C. Justus;P. Kalavase;S. A. Koay;D. Kovalskyi;V. Krutelyov;S. Lowette;N. Mccoll;V. Pavlunin;F. Rebassoo;J. Ribnik;J. Richman;R. Rossin;D. Stuart;W. To;C. West;A. Apresyan;A. Bornheim;Y. Chen;E. D. Marco;J. Duarte;M. Gataullin;Y. Ma;A. Mott;H. B. Newman;C. Rogan;M. Spiropulu;V. Timciuc;J. Veverka;R. Wilkinson;S. Xie;Y. Yang;R. Y. Zhu;B. Akgun;V. Azzolini;A. Calamba;R. Carroll;T. Ferguson;Y. Iiyama;D. W. Jang;Y. F. Liu;M. Paulini;H. Vogel;I. Vorobiev;J. P. Cumalat;B. R. Drell;C. J. Edelmaier;W. T. Ford;A. Gaz;B. Heyburn;E. L. Lopez;J. G. Smith;K. Stenson;K. A. Ulmer;S. R. Wagner;J. Alexander;A. Chatterjee;N. Eggert;L. K. Gibbons;B. Heltsley;A. Khukhunaishvili;B. Kreis;N. Mirman;G. N. Kaufman;J. R. Patterson;A. Ryd;E. Salvati;W. Sun;W. D. Teo;J. Thom;J. Thompson;J. Tucker;J. Vaughan;Y. Weng;L. Winstrom;P. Wittich;D. Winn;S. Abdullin;M. Albrow;J. Anderson;L. A. T.;A. Beretvas;J. Berryhill;P. C. Bhat;I. Bloch;K. Burkett;J. N. Butler;V. Chetluru;H. W. K.;F. Chlebana;V. D. Elvira;I. Fisk;J. Freeman;Y. Gao;D. Green;O. Gutsche;J. Hanlon;R. M. Harris;J. Hirschauer;B. Hooberman;S. Jindariani;M. Johnson;U. Joshi;B. Kilminster;B. Klima;S. Kunori;S. Kwan;C. Leonidopoulos;J. Linacre;D. Lincoln;R. Lipton;J. Lykken;K. Maeshima;J. M. Marraffino;S. Maruyama;D. Mason;P. McBride;K. Mishra;S. Mrenna;Y. Musienko;C. Newman Holmes;V. O'Dell;O. Prokofyev;E. Sexton Kennedy;S. Sharma;W. J. Spalding;L. Spiegel;P. Tan;L. Taylor;S. Tkaczyk;N. V. Tran;L. Uplegger;E. W. Vaandering;R. Vidal;J. Whitmore;W. Wu;F. Yang;F. Yumiceva;J. C. Yun;D. Acosta;P. Avery;D. Bourilkov;M. Chen;T. Cheng;S. Das;M. D. Gruttola;G. P. Di;D. Dobur;A. Drozdetskiy;R. D. Field;M. Fisher;Y. Fu;I. K. Furic;J. Gartner;J. Hugon;B. Kim;J. Konigsberg;A. Korytov;A. Kropivnitskaya;T. Kypreos;J. F. Low;K. Matchev;P. Milenovic;G. Mitselmakher;L. Muniz;R. Remington;A. Rinkevicius;P. Sellers;N. Skhirtladze;M. Snowball;J. Yelton;M. Zakaria;V. Gaultney;S. Hewamanage;L. M. Lebolo;S. Linn;P. Markowitz;G. Martinez;J. L. Rodriguez;T. Adams;A. Askew;J. Bochenek;J. Chen;B. Diamond;S. V. Gleyzer;J. Haas;S. Hagopian;V. Hagopian;M. Jenkins;K. F. Johnson;H. Prosper;V. Veeraraghavan;M. Weinberg;M. M. Baarmand;B. Dorney;M. Hohlmann;H. Kalakhety;I. Vodopiyanov;M. R. Adams;I. M. Anghel;L. Apanasevich;Y. Bai;V. E. Bazterra;R. R. Betts;I. Bucinskaite;J. Callner;R. Cavanaugh;O. Evdokimov;L. Gauthier;C. E. Gerber;D. J. Hofman;S. Khalatyan;F. Lacroix;M. Malek;C. O'Brien;C. Silkworth;D. Strom;N. Varelas;U. Akgun;E. A. Albayrak;B. Bilki;W. Clarida;F. Duru;S. Griffiths;J. . . P.;H. Mermerkaya;A. Mestvirishvili;A. Moeller;J. Nachtman;C. R. Newsom;E. Norbeck;Y. Onel;F. Ozok;S. Sen;E. Tiras;J. Wetzel;T. Yetkin;K. Yi;B. A. Barnett;B. Blumenfeld;S. Bolognesi;D. Fehling;G. Giurgiu;A. V. Gritsan;Z. J. Guo;G. Hu;P. Maksimovic;S. Rappoccio;M. Swartz;A. Whitbeck;P. Baringer;A. Bean;G. Benelli;O. Grachov;R. P. Kenny;M. Murray;D. Noonan;S. Sanders;R. Stringer;G. Tinti;J. S. Wood;V. Zhukova;A. F. Barfuss;T. Bolton;I. Chakaberia;A. Ivanov;S. Khalil;M. Makouski;Y. 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Baur;A. Godshalk;I. Iashvili;S. Jain;A. Kharchilava;A. Kumar;S. P. Shipkowski;K. Smith;G. Alverson;E. Barberis;D. Baumgartel;M. Chasco;J. Haley;D. Nash;D. Trocino;D. Wood;J. Zhang;A. Anastassov;A. Kubik;N. Mucia;N. Odell;R. A. Ofierzynski;B. Pollack;A. Pozdnyakov;M. Schmitt;S. Stoynev;M. Velasco;S. Won;L. Antonelli;D. Berry;A. Brinkerhoff;M. Hildreth;C. Jessop;D. J. Karmgard;J. Kolb;K. Lannon;W. Luo;S. Lynch;N. Marinelli;D. M. Morse;T. Pearson;M. Planer;R. Ruchti;J. Slaunwhite;N. Valls;M. Wayne;M. Wolf;B. Bylsma;L. S. Durkin;C. Hill;K. Kotov;T. Y. Ling;D. Puigh;M. Rodenburg;C. Vuosalo;G. Williams;B. L. Winer;N. Adam;E. Berry;P. Elmer;D. Gerbaudo;V. Halyo;P. Hebda;J. Hegeman;A. Hunt;P. Jindal;D. L. Pegna;P. Lujan;D. Marlow;T. Medvedeva;M. Mooney;J. Olsen;P. Piroue;X. Quan;A. Raval;B. Safdi;H. Saka;D. Stickland;C. Tully;J. S. Werner;A. Zuranski;J. G. Acosta;E. Brownson;X. T. Huang;A. Lopez;H. Mendez;S. Oliveros;J. E. Ramirez;A. Zatserklyaniy;E. Alagoz;V. E. Barnes;D. Benedetti;G. Bolla;D. Bortoletto;M. D. Mattia;A. Everett;Z. Hu;M. Jones;O. Koybasi;M. Kress;A. T. Laasanen;N. Leonardo;V. Maroussov;P. Merkel;D. H. Miller;N. Neumeister;I. Shipsey;D. Silvers;A. Svyatkovskiy;M. V. Marono;H. D. Yoo;J. Zablocki;Y. Zheng;S. Guragain;N. Parashar;A. Adair;C. Boulahouache;K. M. Ecklund;F. J. M.;B. P. Padley;R. Redjimi;J. Roberts;J. Zabel;B. Betchart;A. Bodek;Y. S. Chung;R. Covarelli;P. d. Barbaro;R. Demina;Y. Eshaq;T. Ferbel;A. Garcia Bellido;P. Goldenzweig;J. Han;A. Harel;D. C. Miner;D. Vishnevskiy;M. Zielinski;A. Bhatti;R. Ciesielski;L. Demortier;K. Goulianos;G. Lungu;S. Malik;C. Mesropian;S. Arora;A. Barker;J. P. Chou;C. Contreras Campana;E. Contreras Campana;D. Duggan;D. Ferencek;Y. Gershtein;R. Gray;E. Halkiadakis;D. Hidas;A. Lath;S. Panwalkar;M. Park;R. Patel;V. Rekovic;J. Robles;K. Rose;S. Salur;S. Schnetzer;C. Seitz;S. Somalwar;R. Stone;S. Thomas;G. Cerizza;M. Hollingsworth;S. Spanier;Z. C. Yang;A. York;R. Eusebi;W. Flanagan;J. Gilmore;T. Kamon;V. Khotilovich;R. Montalvo;I. Osipenkov;Y. Pakhotin;A. Perloff;J. Roe;A. Safonov;T. Sakuma;S. Sengupta;I. Suarez;A. Tatarinov;D. Toback;N. Akchurin;J. Damgov;C. Dragoiu;P. R. Dudero;C. Jeong;K. Kovitanggoon;S. W. Lee;T. Libeiro;Y. Roh;I. Volobouev;E. Appelt;A. G. Delannoy;C. Florez;S. Greene;A. Gurrola;W. Johns;C. Johnston;P. Kurt;C. Maguire;A. Melo;M. Sharma;P. Sheldon;B. Snook;S. Tuo;J. Velkovska;M. W. Arenton;M. Balazs;S. Boutle;B. Cox;B. Francis;J. Goodell;R. Hirosky;A. Ledovskoy;C. Lin;C. Neu;J. Wood;R. Yohay;S. Gollapinni;R. Harr;P. E. Karchin;C. K. Kankanamge;P. Lamichhane;A. Sakharov;M. Anderson;D. Belknap;L. Borrello;D. Carlsmith;M. Cepeda;S. Dasu;L. Gray;K. S. Grogg;M. Grothe;R. Hall Wilton;M. Herndon;A. Herve;P. Klabbers;J. Klukas;A. Lanaro;C. Lazaridis;J. Leonard;R. Loveless;A. Mohapatra;I. Ojalvo;F. Palmonari;G. A. Pierro;I. Ross;A. Savin;W. H. Smith;J. Swanson
2012
Abstract
A search is performed for long-lived neutral particles decaying into a photon and invisible particles. An example of such a signature is the decay of the lightest neutralino with nonzero lifetime into a gravitino and a photon in gauge-mediated supersymmetry, with the neutralino as the next-to-lightest supersymmetric particle and the gravitino as the lightest. The search uses events containing photons, missing transverse energy, and jets. The impact parameter of the photon relative to the beam-beam collision point can be reconstructed using converted photons. The method is sensitive to lifetimes of the order of 0.1 to ins. The data sample corresponds to an integrated luminosity of 2.23 fb(-1) in pp collisions at root s = 7 TeV, recorded in the first part of 2011 by the CMS experiment at the LHC. Cross-section limits are presented on pair production for such particles, each of which decays into a photon and invisible particles. The observed 95% confidence level limits vary between 0.11 and 0.21 pb, depending on the neutral particle lifetime.
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/862546
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simulazione ASN
Il report seguente simula gli indicatori relativi alla propria produzione scientifica in relazione alle soglie ASN 2023-2025 del proprio SC/SSD. Si ricorda che il superamento dei valori soglia (almeno 2 su 3) è requisito necessario ma non sufficiente al conseguimento dell'abilitazione. La simulazione si basa sui dati IRIS e sugli indicatori bibliometrici alla data indicata e non tiene conto di eventuali periodi di congedo obbligatorio, che in sede di domanda ASN danno diritto a incrementi percentuali dei valori. La simulazione può differire dall'esito di un’eventuale domanda ASN sia per errori di catalogazione e/o dati mancanti in IRIS, sia per la variabilità dei dati bibliometrici nel tempo. Si consideri che Anvur calcola i valori degli indicatori all'ultima data utile per la presentazione delle domande.
La presente simulazione è stata realizzata sulla base delle specifiche raccolte sul tavolo ER del Focus Group IRIS coordinato dall’Università di Modena e Reggio Emilia e delle regole riportate nel DM 589/2018 e allegata Tabella A. Cineca, l’Università di Modena e Reggio Emilia e il Focus Group IRIS non si assumono alcuna responsabilità in merito all’uso che il diretto interessato o terzi faranno della simulazione. Si specifica inoltre che la simulazione contiene calcoli effettuati con dati e algoritmi di pubblico dominio e deve quindi essere considerata come un mero ausilio al calcolo svolgibile manualmente o con strumenti equivalenti.