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POLITECNICO DI BARI - Catalogo dei prodotti della Ricerca
A search has been performed for long-lived particles that have stopped in the CMS detector, during 7TeV proton-proton operations of the CERN LHC. The existence of such particles could be inferred from observation of their decays when there were no protonproton collisions in the CMS detector, namely during gaps between LHC beam crossings. Using a data set in which CMS recorded an integrated luminosity of 4.0 fb-1, and a search interval corresponding to 246 hours of trigger live time, 12 events are observed, with a mean background prediction of 8:6 ± 2:4 events. Limits are presented at 95% confidence level on long-lived gluino and stop production, over 13 orders of magnitude of particle lifetime. Assuming the "cloud model" of R-hadron interactions, a gluino with mass below 640 GeV and a stop with mass below 340 GeV are excluded, for lifetimes between 10 μs and 1000 s.
Search for stopped long-lived particles produced in pp collisions at √s = 7 TeV / S., C., V., K., A. M., S., A., T., W., A., T., B., M., D., J., E., C., F., M., F., R., F., V. M., G., J., H., N., H., J., H., M., J., W., K., V., K., M., K., D., L., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1126-6708. - 8:8(2012). [10.1007/JHEP08(2012)026]
Search for stopped long-lived particles produced in pp collisions at √s = 7 TeV
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Aguilar Benitez;J. A. Maestre;P. Arce;C. Battilana;E. Calvo;M. Cerrada;M. C. Llatas;N. Colino;B. D. La;A. D. Pens;D. D. Vazquez;C. F. Bedoya;J. P. F.;A. Ferrando;J. Flix;M. C. Fouz;P. Garcia Abia;O. G. Lopez;S. G. Lopez;J. M. Hernandez;M. I. Josa;G. Merino;J. P. Pelayo;A. Q. Olmeda;I. Redondo;L. Romero;J. Santaolalla;M. S. Soares;C. Willmott;C. Albajar;G. Codispoti;J. F. de;H. Brun;J. Cuevas;J. F. Menendez;S. Folgueras;I. G. Caballero;L. L. Iglesias;J. P. Gomez;J. A. B.;I. J. Cabrillo;A. Calderon;S. H. Chuang;J. D. Campderros;M. Felcini;M. Fernandez;G. Gomez;J. G. Sanchez;C. Jorda;A. L. Virto;J. Marco;R. Marco;C. M. Rivero;F. Matorras;F. J. M.;T. Rodrigo;A. Y. Rodriguez Marrero;A. Ruiz Jimeno;L. Scodellaro;M. S. Sanudo;I. Vila;R. V. Cortabitarte;D. Abbaneo;E. Auffray;G. Auzinger;P. B. Lon;A. H. Ball;D. Barney;J. F. Benitez;C. Bernet;G. Bianchi;P. Bloch;A. Bocci;A. Bonato;C. Botta;H. Breuker;T. Camporesi;G. Cerminara;T. Christiansen;J. A. C.;D. D'Enterria;A. Dabrowski;A. D. Roeck;S. D. 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Konig;D. Kotlinski;U. Langenegger;F. Meier;D. Renker;T. Rohe;J. Sibille;L. Bani;P. Bortignon;M. A. Buchmann;B. Casal;N. Chanon;A. Deisher;G. Dissertori;M. Dittmar;M. Dunser;J. Eugster;K. Freudenreich;C. Grab;D. Hits;P. Lecomte;W. Lustermann;A. C. Marini;P. M. R.;N. Mohr;F. Moortgat;C. Nageli;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;E. Aguilo;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. Hou;Y. Hsiung;K. Y. Kao;Y. J. Lei;R. S. Lu;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;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. Magnan;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. D.;S. Chauhan;M. Chertok;J. Conway;R. Conway;P. 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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;R. Ruchti;J. Slaunwhite;N. Valls;M. Wayne;M. Wolf;B. Bylsma;L. S. Durkin;A. Hart;C. Hill;R. Hughes;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. R.;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;A. Garcia Bellido;P. Goldenzweig;J. Han;A. Hard;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;P. R. Dudero;C. Jeong;K. Kovitanggoon;S. W. Lee;T. Libeiro;Y. Roh;I. Volobouev;E. Appelt;C. Florez;S. Greene;A. Gurrola;W. Johns;C. Johnston;P. Kurt;C. Maguire;A. Melo;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. K.;P. Lamichhane;A. Sakharov;M. Anderson;M. Bachtis;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 has been performed for long-lived particles that have stopped in the CMS detector, during 7TeV proton-proton operations of the CERN LHC. The existence of such particles could be inferred from observation of their decays when there were no protonproton collisions in the CMS detector, namely during gaps between LHC beam crossings. Using a data set in which CMS recorded an integrated luminosity of 4.0 fb-1, and a search interval corresponding to 246 hours of trigger live time, 12 events are observed, with a mean background prediction of 8:6 ± 2:4 events. Limits are presented at 95% confidence level on long-lived gluino and stop production, over 13 orders of magnitude of particle lifetime. Assuming the "cloud model" of R-hadron interactions, a gluino with mass below 640 GeV and a stop with mass below 340 GeV are excluded, for lifetimes between 10 μs and 1000 s.
Search for stopped long-lived particles produced in pp collisions at √s = 7 TeV / S., C., V., K., A. M., S., A., T., W., A., T., B., M., D., J., E., C., F., M., F., R., F., V. M., G., J., H., N., H., J., H., M., J., W., K., V., K., M., K., D., L., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1126-6708. - 8:8(2012). [10.1007/JHEP08(2012)026]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/1116
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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.