Attenzione: i dati modificati non sono ancora stati salvati. Per confermare inserimenti o cancellazioni di voci è necessario confermare con il tasto SALVA/INSERISCI in fondo alla pagina
CINECA IRIS Institutional Research Information System
A search for long-lived particles (LLPs) produced in association with a Z boson is presented. The study is performed using data from proton-proton collisions with a center-of-mass energy of 13 TeV recorded by the CMS experiment during 2016-2018, corresponding to an integrated luminosity of 117fb(-1).( )The LLPs are assumed to decay to a pair of standard model quarks that are identified as displaced jets within the CMS tracker system. Triggers and selections based on Z boson decays to electron or muon pairs improve the sensitivity to light LLPs (down to 15 GeV). This search provides sensitivity to beyond the standard model scenarios which predict LLPs produced in association with a Z boson. In particular, the results are interpreted in the context of exotic decays of the Higgs boson to a pair of scalar LLPs (H -> SS). The Higgs boson decay branching fraction is constrained to values less than 6% for proper decay lengths of 10-100 mm and for LLP masses between 40 and 55 GeV. In the case of low-mass (approximate to 15 GeV) scalar particles that subsequently decay to a pair of b quarks, the search is sensitive to branching fractions B(H -> SS) < 20% for proper decay lengths of 10-50 mm. The use of associated production with a Z boson increases the sensitivity to low-mass LLPs of this analysis with respect to gluon fusion searches. In the case of 15 GeV scalar LLPs, the improvement corresponds to a factor of 2 at a proper decay length of 30 mm.
Search for long-lived particles produced in association with a Z boson in proton-proton collisions at √s = 13 TeV
A. Tumasyan;W. Adam;J. W. Andrejkovic;T. Bergauer;S. Chatterjee;M. Dragicevic;A. Escalante Del Valle;R. Fr??hwirth;M. Jeitler;N. Krammer;L. Lechner;D. Liko;I. Mikulec;P. Paulitsch;F. M. Pitters;J. Schieck;R. Sch??fbeck;D. Schwarz;S. Templ;W. Waltenberger;C. -E. Wulz;V. Chekhovsky;A. Litomin;V. Makarenko;M. R. Darwish;E. A. De Wolf;T. Janssen;T. Kello;A. Lelek;H. Rejeb Sfar;P. Van Mechelen;S. Van Putte;N. Van Remortel;F. Blekman;E. S. Bols;J. D???Hondt;M. Delcourt;H. El Faham;S. Lowette;S. Moortgat;A. Morton;D. M??ller;A. R. Sahasransu;S. Tavernier;W. Van Doninck;P. Van Mulders;D. Beghin;B. Bilin;B. Clerbaux;G. De Lentdecker;L. Favart;A. Grebenyuk;A. K. Kalsi;K. Lee;M. Mahdavikhorrami;I. Makarenko;L. Moureaux;L. P??tr??;A. Popov;N. Postiau;E. Starling;L. Thomas;M. Vanden Bemden;C. Vander Velde;P. Vanlaer;L. Wezenbeek;T. Cornelis;D. Dobur;J. Knolle;L. Lambrecht;G. Mestdach;M. Niedziela;C. Roskas;A. Samalan;K. Skovpen;M. Tytgat;B. Vermassen;M. Vit;A. Benecke;A. Bethani;G. Bruno;F. Bury;C. Caputo;P. David;C. Delaere;I. S. Donertas;A. Giammanco;K. Jaffel;Sa. Jain;V. Lemaitre;K. Mondal;J. Prisciandaro;A. Taliercio;M. Teklishyn;T. T. Tran;P. Vischia;S. Wertz;G. A. Alves;C. Hensel;A. Moraes;W. L. Ald?? J??nior;M. Alves Gallo Pereira;M. Barroso Ferreira Filho;H. Brandao Malbouisson;W. Carvalho;J. Chinellato;E. M. Da Costa;G. G. Da Silveira;D. De Jesus Damiao;S. Fonseca De Souza;D. Matos Figueiredo;C. Mora Herrera;K. Mota Amarilo;L. Mundim;H. Nogima;P. Rebello Teles;A. Santoro;S. M. Silva Do Amaral;A. Sznajder;M. Thiel;F. Torres Da Silva De Araujo;A. Vilela Pereira;C. A. Bernardes;L. Calligaris;T. R. Fernandez Perez Tomei;E. M. Gregores;D. S. Lemos;P. G. Mercadante;S. F. Novaes;Sandra S. Padula;A. Aleksandrov;G. Antchev;R. Hadjiiska;P. Iaydjiev;M. Misheva;M. Rodozov;M. Shopova;G. Sultanov;A. Dimitrov;T. Ivanov;L. Litov;B. Pavlov;P. Petkov;A. Petrov;T. Cheng;T. Javaid;M. Mittal;L. Yuan;M. Ahmad;G. Bauer;C. Dozen;Z. Hu;J. Martins;Y. Wang;K. Yi;E. Chapon;G. M. Chen;H. S. Chen;M. Chen;F. Iemmi;A. Kapoor;D. Leggat;H. Liao;Z. -A. Liu;V. Milosevic;F. Monti;R. Sharma;J. Tao;J. Thomas-wilsker;J. Wang;H. Zhang;J. Zhao;A. Agapitos;Y. An;Y. Ban;C. Chen;A. Levin;Q. Li;X. Lyu;Y. Mao;S. J. Qian;D. Wang;Q. Wang;J. Xiao;M. Lu;Z. You;X. Gao;H. Okawa;Z. Lin;M. Xiao;C. Avila;A. Cabrera;C. Florez;J. Fraga;J. Mejia Guisao;F. Ramirez;J. D. Ruiz Alvarez;C. A. Salazar Gonz??lez;D. Giljanovic;N. Godinovic;D. Lelas;I. Puljak;Z. Antunovic;M. Kovac;T. Sculac;V. Brigljevic;D. Ferencek;D. Majumder;M. Roguljic;A. Starodumov;T. Susa;A. Attikis;K. Christoforou;E. Erodotou;A. Ioannou;G. Kole;M. Kolosova;S. Konstantinou;J. Mousa;C. Nicolaou;F. Ptochos;P. A. Razis;H. Rykaczewski;H. Saka;M. Finger;M. Finger;A. Kveton;E. Ayala;E. Carrera Jarrin;H. Abdalla;S. Elgammal;A. Lotfy;M. A. Mahmoud;S. Bhowmik;R. K. Dewanjee;K. Ehataht;M. Kadastik;S. Nandan;C. Nielsen;J. Pata;M. Raidal;L. Tani;C. Veelken;P. Eerola;L. Forthomme;H. Kirschenmann;K. Osterberg;M. Voutilainen;S. Bharthuar;E. Br??cken;F. Garcia;J. Havukainen;M. S. Kim;R. Kinnunen;T. Lamp??n;K. Lassila-Perini;S. Lehti;T. Lind??n;M. Lotti;L. Martikainen;M. Myllym??ki;J. Ott;H. Siikonen;E. Tuominen;J. Tuominiemi;P. Luukka;H. Petrow;T. Tuuva;C. Amendola;M. Besancon;F. Couderc;M. Dejardin;D. Denegri;J. L. Faure;F. Ferri;S. Ganjour;A. Givernaud;P. Gras;G. Hamel de Monchenault;P. Jarry;B. Lenzi;E. Locci;J. Malcles;J. Rander;A. Rosowsky;M. ??. Sahin;A. Savoy-Navarro;M. Titov;G. B. Yu;S. Ahuja;F. Beaudette;M. Bonanomi;A. Buchot Perraguin;P. Busson;A. Cappati;C. Charlot;O. Davignon;B. Diab;G. Falmagne;S. Ghosh;R. Granier de Cassagnac;A. Hakimi;I. Kucher;J. Motta;M. Nguyen;C. Ochando;P. Paganini;J. Rembser;R. Salerno;U. Sarkar;J. B. Sauvan;Y. Sirois;A. Tarabini;A. Zabi;A. Zghiche;J. -L. Agram;J. Andrea;D. Apparu;D. Bloch;G. Bourgatte;J. -M. Brom;E. C. Chabert;C. Collard;D. Darej;J. -C. Fontaine;U. Goerlach;C. Grimault;A. -C. Le Bihan;E. Nibigira;P. Van Hove;E. Asilar;S. Beauceron;C. Bernet;G. Boudoul;C. Camen;A. Carle;N. Chanon;D. Contardo;P. Depasse;H. El Mamouni;J. Fay;S. Gascon;M. Gouzevitch;B. Ille;I. B. Laktineh;H. Lattaud;A. Lesauvage;M. Lethuillier;L. Mirabito;S. Perries;K. Shchablo;V. Sordini;L. Torterotot;G. Touquet;M. Vander Donckt;S. Viret;A. Khvedelidze;I. Lomidze;Z. Tsamalaidze;V. Botta;L. Feld;K. Klein;M. Lipinski;D. Meuser;A. Pauls;N. R??wert;J. Schulz;M. Teroerde;A. Dodonova;D. Eliseev;M. Erdmann;P. Fackeldey;B. Fischer;S. Ghosh;T. Hebbeker;K. Hoepfner;F. Ivone;L. Mastrolorenzo;M. Merschmeyer;A. Meyer;G. Mocellin;S. Mondal;S. Mukherjee;D. Noll;A. Novak;T. Pook;A. Pozdnyakov;Y. Rath;H. Reithler;J. Roemer;A. Schmidt;S. C. Schuler;A. Sharma;L. Vigilante;S. Wiedenbeck;S. Zaleski;C. Dziwok;G. Fl??gge;W. Haj Ahmad;O. Hlushchenko;T. Kress;A. Nowack;C. Pistone;O. Pooth;D. Roy;H. Sert;A. Stahl;T. Ziemons;A. Zotz;H. Aarup Petersen;M. Aldaya Martin;P. Asmuss;S. Baxter;M. Bayatmakou;O. Behnke;A. Berm??dez Mart??nez;S. Bhattacharya;A. A. Bin Anuar;K. Borras;D. Brunner;A. Campbell;A. Cardini;C. Cheng;F. Colombina;S. Consuegra Rodr??guez;G. Correia Silva;V. Danilov;M. De Silva;L. Didukh;G. Eckerlin;D. Eckstein;L. I. Estevez Banos;O. Filatov;E. Gallo;A. Geiser;A. Giraldi;A. Grohsjean;M. Guthoff;A. Jafari;N. Z. Jomhari;H. Jung;A. Kasem;M. Kasemann;H. Kaveh;C. Kleinwort;D. Kr??cker;W. Lange;J. Lidrych;K. Lipka;W. Lohmann;R. Mankel;I. -A. Melzer-Pellmann;M. Mendizabal Morentin;J. Metwally;A. B. Meyer;M. Meyer;J. Mnich;A. Mussgiller;Y. Otarid;D. P??rez Ad??n;D. Pitzl;A. Raspereza;B. Ribeiro Lopes;J. R??benach;A. Saggio;A. Saibel;M. Savitskyi;M. Scham;V. Scheurer;P. Sch??tze;C. Schwanenberger;A. Singh;R. E. Sosa Ricardo;D. Stafford;N. Tonon;M. Van De Klundert;R. Walsh;D. Walter;Y. Wen;K. Wichmann;L. Wiens;C. Wissing;S. Wuchterl;R. Aggleton;S. Albrecht;S. Bein;L. Benato;P. Connor;K. De Leo;M. Eich;F. Feindt;A. Fr??hlich;C. Garbers;E. Garutti;P. Gunnellini;M. Hajheidari;J. Haller;A. Hinzmann;G. Kasieczka;R. Klanner;R. Kogler;T. Kramer;V. Kutzner;J. Lange;T. Lange;A. Lobanov;A. Malara;A. Nigamova;K. J. Pena Rodriguez;O. Rieger;P. Schleper;M. Schr??der;J. Schwandt;J. Sonneveld;H. Stadie;G. Steinbr??ck;A. Tews;I. Zoi;J. Bechtel;S. Brommer;E. Butz;R. Caspart;T. Chwalek;W. De Boer;A. Dierlamm;A. Droll;K. El Morabit;N. Faltermann;M. Giffels;J. o. Gosewisch;A. Gottmann;F. Hartmann;C. Heidecker;U. Husemann;P. Keicher;R. Koppenh??fer;S. Maier;M. Metzler;S. Mitra;Th. M??ller;M. Neukum;A. N??rnberg;G. Quast;K. Rabbertz;J. Rauser;D. Savoiu;M. Schnepf;D. Seith;I. Shvetsov;H. J. Simonis;R. Ulrich;J. Van Der Linden;R. F. Von Cube;M. Wassmer;M. Weber;S. Wieland;R. Wolf;S. Wozniewski;S. Wunsch;G. Anagnostou;G. Daskalakis;T. Geralis;A. Kyriakis;D. Loukas;A. Stakia;M. Diamantopoulou;D. Karasavvas;G. Karathanasis;P. Kontaxakis;C. K. Koraka;A. Manousakis-Katsikakis;A. Panagiotou;I. Papavergou;N. Saoulidou;K. Theofilatos;E. Tziaferi;K. Vellidis;E. Vourliotis;G. Bakas;K. Kousouris;I. Papakrivopoulos;G. Tsipolitis;A. Zacharopoulou;K. Adamidis;I. Bestintzanos;I. Evangelou;C. Foudas;P. Gianneios;P. Katsoulis;P. Kokkas;N. Manthos;I. Papadopoulos;J. Strologas;M. Csanad;K. Farkas;M. M. A. Gadallah;S. L??k??s;P. Major;K. Mandal;A. Mehta;G. Pasztor;A. J. R??dl;O. Sur??nyi;G. I. Veres;M. Bart??k;G. Bencze;C. Hajdu;D. Horvath;F. Sikler;V. Veszpremi;S. Czellar;J. Karancsi;J. Molnar;Z. Szillasi;D. Teyssier;P. Raics;Z. L. Trocsanyi;B. Ujvari;T. Csorgo;F. Nemes;T. Novak;J. R. Komaragiri;D. Kumar;L. Panwar;P. C. Tiwari;S. Bahinipati;C. Kar;P. Mal;T. Mishra;V. K. Muraleedharan Nair Bindhu;A. Nayak;P. Saha;N. Sur;S. K. Swain;D. Vats;S. Bansal;S. B. Beri;V. Bhatnagar;G. Chaudhary;S. Chauhan;N. Dhingra;R. Gupta;A. Kaur;M. Kaur;S. Kaur;P. Kumari;M. Meena;K. Sandeep;J. B. Singh;A. K. Virdi;A. Ahmed;A. Bhardwaj;B. C. Choudhary;M. Gola;S. Keshri;A. Kumar;M. Naimuddin;P. Priyanka;K. Ranjan;A. Shah;M. Bharti;R. Bhattacharya;S. Bhattacharya;D. Bhowmik;S. Dutta;S. Dutta;B. Gomber;M. Maity;P. Palit;P. K. Rout;G. Saha;B. Sahu;S. Sarkar;M. Sharan;B. Singh;S. Thakur;P. K. Behera;S. C. Behera;P. Kalbhor;A. Muhammad;R. Pradhan;P. R. Pujahari;A. Sharma;A. K. Sikdar;D. Dutta;V. Jha;V. Kumar;D. K. Mishra;K. Naskar;P. K. Netrakanti;L. M. Pant;P. Shukla;T. Aziz;S. Dugad;M. Kumar;S. Banerjee;R. Chudasama;M. Guchait;S. Karmakar;S. Kumar;G. Majumder;K. Mazumdar;S. Mukherjee;K. Alpana;S. Dube;B. Kansal;A. Laha;S. Pandey;A. Rane;A. Rastogi;S. Sharma;H. Bakhshiansohi;E. Khazaie;M. Zeinali;S. Chenarani;S. M. Etesami;M. Khakzad;M. Mohammadi Najafabadi;M. Grunewald;M. Abbrescia;R. Aly;C. Aruta;A. Colaleo;D. Creanza;N. De Filippis;M. De Palma;A. Di Florio;A. Di Pilato;W. Elmetenawee;L. Fiore;A. Gelmi;M. Gul;G. Iaselli;M. Ince;S. Lezki;G. Maggi;M. Maggi;I. Margjeka;V. Mastrapasqua;J. A. Merlin;S. My;S. Nuzzo;A. Pellecchia;A. Pompili;G. Pugliese;D. Ramos;A. Ranieri;G. Selvaggi;L. Silvestris;F. M. Simone;R. Venditti;P. Verwilligen;G. Abbiendi;C. Battilana;D. Bonacorsi;L. Borgonovi;L. Brigliadori;R. Campanini;P. Capiluppi;A. Castro;F. R. Cavallo;M. Cuffiani;G. M. Dallavalle;T. Diotalevi;F. Fabbri;A. Fanfani;P. Giacomelli;L. Giommi;C. Grandi;L. Guiducci;S. Lo Meo;L. Lunerti;S. Marcellini;G. Masetti;F. L. Navarria;A. Perrotta;F. Primavera;A. M. Rossi;T. Rovelli;G. P. Siroli;S. Albergo;S. Costa;A. Di Mattia;R. Potenza;A. Tricomi;C. Tuve;G. Barbagli;A. Cassese;R. Ceccarelli;V. Ciulli;C. Civinini;R. D???Alessandro;E. Focardi;G. Latino;P. Lenzi;M. Lizzo;M. Meschini;S. Paoletti;R. Seidita;G. Sguazzoni;L. Viliani;L. Benussi;S. Bianco;D. Piccolo;M. Bozzo;F. Ferro;R. Mulargia;E. Robutti;S. Tosi;A. Benaglia;G. Boldrini;F. Brivio;F. Cetorelli;F. De Guio;M. E. Dinardo;P. Dini;S. Gennai;A. Ghezzi;P. Govoni;L. Guzzi;M. T. Lucchini;M. Malberti;S. Malvezzi;A. Massironi;D. Menasce;L. Moroni;M. Paganoni;D. Pedrini;B. S. Pinolini;S. Ragazzi;N. Redaelli;T. Tabarelli de Fatis;D. Valsecchi;D. Zuolo;S. Buontempo;F. Carnevali;N. Cavallo;A. De Iorio;F. Fabozzi;A. O. M. Iorio;L. Lista;S. Meola;P. Paolucci;B. Rossi;C. Sciacca;P. Azzi;N. Bacchetta;D. Bisello;P. Bortignon;A. Bragagnolo;R. Carlin;P. Checchia;T. Dorigo;U. Dosselli;F. Gasparini;U. Gasparini;G. Grosso;S. Y. Hoh;L. Layer;E. Lusiani;M. Margoni;A. T. Meneguzzo;J. Pazzini;M. Presilla;P. Ronchese;R. Rossin;F. Simonetto;G. Strong;M. Tosi;H. Yarar;M. Zanetti;P. Zotto;A. Zucchetta;G. Zumerle;C. Aime???;A. Braghieri;S. Calzaferri;D. Fiorina;P. Montagna;S. P. Ratti;V. Re;C. Riccardi;P. Salvini;I. Vai;P. Vitulo;P. Asenov;G. M. Bilei;D. Ciangottini;L. Fan??;P. Lariccia;M. Magherini;G. Mantovani;V. Mariani;M. Menichelli;F. Moscatelli;A. Piccinelli;A. Rossi;A. Santocchia;D. Spiga;T. Tedeschi;P. Azzurri;G. Bagliesi;V. Bertacchi;L. Bianchini;T. Boccali;E. Bossini;R. Castaldi;M. A. Ciocci;V. D???Amante;R. Dell???Orso;M. R. Di Domenico;S. Donato;A. Giassi;F. Ligabue;E. Manca;G. Mandorli;A. Messineo;F. Palla;S. Parolia;G. Ramirez-Sanchez;A. Rizzi;G. Rolandi;S. Roy Chowdhury;A. Scribano;N. Shafiei;P. Spagnolo;R. Tenchini;G. Tonelli;N. Turini;A. Venturi;P. G. Verdini;P. Barria;M. Campana;F. Cavallari;D. Del Re;E. Di Marco;M. Diemoz;E. Longo;P. Meridiani;G. Organtini;F. Pandolfi;R. Paramatti;C. Quaranta;S. Rahatlou;C. Rovelli;F. Santanastasio;L. Soffi;R. Tramontano;N. Amapane;R. Arcidiacono;S. Argiro;M. Arneodo;N. Bartosik;R. Bellan;A. Bellora;J. Berenguer Antequera;C. Biino;N. Cartiglia;S. Cometti;M. Costa;R. Covarelli;N. Demaria;B. Kiani;F. Legger;C. Mariotti;S. Maselli;E. Migliore;E. Monteil;M. Monteno;M. M. Obertino;G. Ortona;L. Pacher;N. Pastrone;M. Pelliccioni;G. L. Pinna Angioni;M. Ruspa;K. Shchelina;F. Siviero;V. Sola;A. Solano;D. Soldi;A. Staiano;M. Tornago;D. Trocino;A. Vagnerini;S. Belforte;V. Candelise;M. Casarsa;F. Cossutti;A. Da Rold;G. Della Ricca;G. Sorrentino;F. Vazzoler;S. Dogra;C. Huh;B. Kim;D. H. Kim;G. N. Kim;J. Kim;J. Lee;S. W. Lee;C. S. Moon;Y. D. Oh;S. I. Pak;B. C. Radburn-Smith;S. Sekmen;Y. C. Yang;H. Kim;D. H. Moon;B. Francois;T. J. Kim;J. Park;S. Cho;S. Choi;Y. Go;B. Hong;K. Lee;K. S. Lee;J. Lim;J. Park;S. K. Park;J. Yoo;J. Goh;A. Gurtu;H. S. Kim;Y. Kim;J. Almond;J. H. Bhyun;J. Choi;S. Jeon;J. Kim;J. S. Kim;S. Ko;H. Kwon;H. Lee;S. Lee;B. H. Oh;M. Oh;S. B. Oh;H. Seo;U. K. Yang;I. Yoon;W. Jang;D. Y. Kang;Y. Kang;S. Kim;B. Ko;J. S. H. Lee;Y. Lee;I. C. Park;Y. Roh;M. S. Ryu;D. Song;I. J. Watson;S. Yang;S. Ha;H. D. Yoo;M. Choi;H. Lee;Y. Lee;I. Yu;T. Beyrouthy;Y. Maghrbi;T. Torims;V. Veckalns;M. Ambrozas;A. Carvalho Antunes De Oliveira;A. Juodagalvis;A. Rinkevicius;G. Tamulaitis;N. Bin Norjoharuddeen;W. A. T. Wan Abdullah;M. N. Yusli;Z. Zolkapli;J. F. Benitez;A. Castaneda Hernandez;M. Le??n Coello;J. A. Murillo Quijada;A. Sehrawat;L. Valencia Palomo;G. Ayala;H. Castilla-Valdez;E. De La Cruz-Burelo;I. Heredia-De La Cruz;R. Lopez-Fernandez;C. A. Mondragon Herrera;D. A. Perez Navarro;A. Sanchez-Hernandez;S. Carrillo Moreno;C. Oropeza Barrera;F. Vazquez Valencia;I. Pedraza;H. A. Salazar Ibarguen;C. Uribe Estrada;J. Mijuskovic;N. Raicevic;D. Krofcheck;P. H. Butler;A. Ahmad;M. I. Asghar;A. Awais;M. I. M. Awan;H. R. Hoorani;W. A. Khan;M. A. Shah;M. Shoaib;M. Waqas;V. Avati;L. Grzanka;M. Malawski;H. Bialkowska;M. Bluj;B. Boimska;M. G??rski;M. Kazana;M. Szleper;P. Zalewski;K. Bunkowski;K. Doroba;A. Kalinowski;M. Konecki;J. Krolikowski;M. Walczak;M. Araujo;P. Bargassa;D. Bastos;A. Boletti;P. Faccioli;M. Gallinaro;J. Hollar;N. Leonardo;T. Niknejad;M. Pisano;J. Seixas;O. Toldaiev;J. Varela;S. Afanasiev;D. Budkouski;I. Golutvin;I. Gorbunov;V. Karjavine;V. Korenkov;A. Lanev;A. Malakhov;V. Matveev;V. Palichik;V. Perelygin;M. Savina;D. Seitova;V. Shalaev;S. Shmatov;S. Shulha;V. Smirnov;O. Teryaev;N. Voytishin;B. S. Yuldashev;A. Zarubin;I. Zhizhin;G. Gavrilov;V. Golovtcov;Y. Ivanov;V. Kim;E. Kuznetsova;V. Murzin;V. Oreshkin;I. Smirnov;D. Sosnov;V. Sulimov;L. Uvarov;S. Volkov;A. Vorobyev;Yu. Andreev;A. Dermenev;S. Gninenko;N. Golubev;A. Karneyeu;D. Kirpichnikov;M. Kirsanov;N. Krasnikov;A. Pashenkov;G. Pivovarov;A. Toropin;V. Epshteyn;V. Gavrilov;N. Lychkovskaya;A. Nikitenko;V. Popov;A. Stepennov;M. Toms;E. Vlasov;A. Zhokin;T. Aushev;O. Bychkova;R. Chistov;M. Danilov;A. Oskin;S. Polikarpov;D. Selivanova;V. Andreev;M. Azarkin;I. Dremin;M. Kirakosyan;A. Terkulov;A. Belyaev;E. Boos;V. Bunichev;M. Dubinin;L. Dudko;A. Gribushin;V. Klyukhin;O. Kodolova;I. Lokhtin;S. Obraztsov;M. Perfilov;S. Petrushanko;V. Savrin;V. Blinov;T. Dimova;L. Kardapoltsev;A. Kozyrev;I. Ovtin;Y. Skovpen;I. Azhgirey;I. Bayshev;D. Elumakhov;V. Kachanov;D. Konstantinov;P. Mandrik;V. Petrov;R. Ryutin;S. Slabospitskii;A. Sobol;S. Troshin;N. Tyurin;A. Uzunian;A. Volkov;A. Babaev;V. Okhotnikov;V. Borshch;V. Ivanchenko;E. Tcherniaev;P. Adzic;M. Dordevic;P. Milenovic;J. Milosevic;M. Aguilar-Benitez;J. Alcaraz Maestre;A. ??lvarez Fern??ndez;I. Bachiller;M. Barrio Luna;Cristina F. Bedoya;C. A. Carrillo Montoya;M. Cepeda;M. Cerrada;N. Colino;B. De La Cruz;A. Delgado Peris;J. P. Fern??ndez Ramos;J. Flix;M. C. Fouz;O. Gonzalez Lopez;S. Goy Lopez;J. M. Hernandez;M. I. Josa;J. Le??n Holgado;D. Moran;??. Navarro Tobar;C. Perez Dengra;A. P??rez-Calero Yzquierdo;J. Puerta Pelayo;I. Redondo;L. Romero;S. S??nchez Navas;L. Urda G??mez;C. Willmott;J. F. de Troc??niz;R. Reyes-Almanza;B. Alvarez Gonzalez;J. Cuevas;C. Erice;J. Fernandez Menendez;S. Folgueras;I. Gonzalez Caballero;J. R. Gonz??lez Fern??ndez;E. Palencia Cortezon;C. Ram??n ??lvarez;V. Rodr??guez Bouza;A. Soto Rodr??guez;A. Trapote;N. Trevisani;C. Vico Villalba;J. A. Brochero Cifuentes;I. J. Cabrillo;A. Calderon;J. Duarte Campderros;M. Fernandez;C. Fernandez Madrazo;P. J. Fern??ndez Manteca;A. Garc??a Alonso;G. Gomez;C. Martinez Rivero;P. Martinez Ruiz del Arbol;F. Matorras;Pablo Matorras-Cuevas;J. Piedra Gomez;C. Prieels;T. Rodrigo;A. Ruiz-Jimeno;L. Scodellaro;I. Vila;J. M. Vizan Garcia;M. K. Jayananda;B. Kailasapathy;D. U. J. Sonnadara;D. D. C. Wickramarathna;W. G. D. Dharmaratna;K. Liyanage;N. Perera;N. Wickramage;T. K. Aarrestad;D. Abbaneo;J. Alimena;E. Auffray;G. Auzinger;J. Baechler;P. Baillon;D. Barney;J. Bendavid;M. Bianco;A. Bocci;T. Camporesi;M. Capeans Garrido;G. Cerminara;N. Chernyavskaya;S. S. Chhibra;M. Cipriani;L. Cristella;D. d???Enterria;A. Dabrowski;A. David;A. De Roeck;M. M. Defranchis;M. Deile;M. Dobson;M. D??nser;N. Dupont;A. Elliott-Peisert;N. Emriskova;F. Fallavollita;D. Fasanella;A. Florent;G. Franzoni;W. Funk;S. Giani;D. Gigi;K. Gill;F. Glege;L. Gouskos;M. Haranko;J. Hegeman;V. Innocente;T. James;P. Janot;J. Kaspar;J. Kieseler;M. Komm;N. Kratochwil;C. Lange;S. Laurila;P. Lecoq;A. Lintuluoto;K. Long;C. Louren??o;B. Maier;L. Malgeri;S. Mallios;M. Mannelli;A. C. Marini;F. Meijers;S. Mersi;E. Meschi;F. Moortgat;M. Mulders;S. Orfanelli;L. Orsini;F. Pantaleo;L. Pape;E. Perez;M. Peruzzi;A. Petrilli;G. Petrucciani;A. Pfeiffer;M. Pierini;D. Piparo;M. Pitt;H. Qu;T. Quast;D. Rabady;A. Racz;G. Reales Guti??rrez;M. Rieger;M. Rovere;H. Sakulin;J. Salfeld-Nebgen;S. Scarfi;C. Sch??fer;C. Schwick;M. Selvaggi;A. Sharma;P. Silva;W. Snoeys;P. Sphicas;S. Summers;K. Tatar;V. R. Tavolaro;D. Treille;P. Tropea;A. Tsirou;G. P. Van Onsem;J. Wanczyk;K. A. Wozniak;W. D. Zeuner;L. Caminada;A. Ebrahimi;W. Erdmann;R. Horisberger;Q. Ingram;H. C. Kaestli;D. Kotlinski;U. Langenegger;M. Missiroli;L. Noehte;T. Rohe;K. Androsov;M. Backhaus;P. Berger;A. Calandri;A. De Cosa;G. Dissertori;M. Dittmar;M. Doneg??;C. Dorfer;F. Eble;K. Gedia;F. Glessgen;T. A. G??mez Espinosa;C. Grab;D. Hits;W. Lustermann;A. -M. Lyon;R. A. Manzoni;L. Marchese;C. Martin Perez;M. T. Meinhard;F. Nessi-Tedaldi;J. Niedziela;F. Pauss;V. Perovic;S. Pigazzini;M. G. Ratti;M. Reichmann;C. Reissel;T. Reitenspiess;B. Ristic;D. Ruini;D. A. Sanz Becerra;V. Stampf;J. Steggemann;R. Wallny;D. H. Zhu;C. Amsler;P. B??rtschi;C. Botta;D. Brzhechko;M. F. Canelli;K. Cormier;A. De Wit;R. Del Burgo;J. K. Heikkil??;M. Huwiler;W. Jin;A. Jofrehei;B. Kilminster;S. Leontsinis;S. P. Liechti;A. Macchiolo;P. Meiring;V. M. Mikuni;U. Molinatti;I. Neutelings;A. Reimers;P. Robmann;S. Sanchez Cruz;K. Schweiger;Y. Takahashi;C. Adloff;C. M. Kuo;W. Lin;A. Roy;T. Sarkar;S. S. Yu;L. Ceard;Y. Chao;K. F. Chen;P. H. Chen;W. -S. Hou;Y. y. Li;R. -S. Lu;E. Paganis;A. Psallidas;A. Steen;H. y. Wu;E. Yazgan;P. r. Yu;B. Asavapibhop;C. Asawatangtrakuldee;N. Srimanobhas;F. Boran;S. Damarseckin;Z. S. Demiroglu;F. Dolek;I. Dumanoglu;E. Eskut;Y. Guler;E. Gurpinar Guler;I. Hos;C. Isik;O. Kara;A. Kayis Topaksu;U. Kiminsu;G. Onengut;K. Ozdemir;A. Polatoz;A. E. Simsek;B. Tali;U. G. Tok;S. Turkcapar;I. S. Zorbakir;C. Zorbilmez;B. Isildak;G. Karapinar;K. Ocalan;M. Yalvac;B. Akgun;I. O. Atakisi;E. G??lmez;M. Kaya;O. Kaya;??. ??z??elik;S. Tekten;E. A. Yetkin;A. Cakir;K. Cankocak;Y. Komurcu;S. Sen;S. Cerci;B. Kaynak;S. Ozkorucuklu;D. Sunar Cerci;B. Grynyov;L. Levchuk;D. Anthony;E. Bhal;S. Bologna;J. J. Brooke;A. Bundock;E. Clement;D. Cussans;H. Flacher;J. Goldstein;G. P. Heath;H. F. Heath;L. Kreczko;B. Krikler;S. Paramesvaran;S. Seif El Nasr-Storey;V. J. Smith;N. Stylianou;K. Walkingshaw Pass;R. White;K. W. Bell;A. Belyaev;C. Brew;R. M. Brown;D. J. A. Cockerill;C. Cooke;K. V. Ellis;K. Harder;S. Harper;M. l. Holmberg;J. Linacre;K. Manolopoulos;D. M. Newbold;E. Olaiya;D. Petyt;T. Reis;T. Schuh;C. H. Shepherd-Themistocleous;I. R. Tomalin;T. Williams;R. Bainbridge;P. Bloch;S. Bonomally;J. Borg;S. Breeze;O. Buchmuller;V. Cepaitis;G. S. Chahal;D. Colling;P. Dauncey;G. Davies;M. Della Negra;S. Fayer;G. Fedi;G. Hall;M. H. Hassanshahi;G. Iles;J. Langford;L. Lyons;A. -M. Magnan;S. Malik;A. Martelli;D. G. Monk;J. Nash;M. Pesaresi;D. M. Raymond;A. Richards;A. Rose;E. Scott;C. Seez;A. Shtipliyski;A. Tapper;K. Uchida;T. Virdee;M. Vojinovic;N. Wardle;S. N. Webb;D. Winterbottom;K. Coldham;J. E. Cole;A. Khan;P. Kyberd;I. D. Reid;L. Teodorescu;S. Zahid;S. Abdullin;A. Brinkerhoff;B. Caraway;J. Dittmann;K. Hatakeyama;A. R. Kanuganti;B. McMaster;N. Pastika;M. Saunders;S. Sawant;C. Sutantawibul;J. Wilson;R. Bartek;A. Dominguez;R. Uniyal;A. M. Vargas Hernandez;A. Buccilli;S. I. Cooper;D. Di Croce;S. V. Gleyzer;C. Henderson;C. U. Perez;P. Rumerio;C. West;A. Akpinar;A. Albert;D. Arcaro;C. Cosby;Z. Demiragli;E. Fontanesi;D. Gastler;S. May;J. Rohlf;K. Salyer;D. Sperka;D. Spitzbart;I. Suarez;A. Tsatsos;S. Yuan;D. Zou;G. Benelli;B. Burkle;X. Coubez;D. Cutts;M. Hadley;U. Heintz;J. M. Hogan;T. KWON;G. Landsberg;K. T. Lau;D. Li;M. Lukasik;J. Luo;M. Narain;N. Pervan;S. Sagir;F. Simpson;E. Usai;W. Y. Wong;X. Yan;D. Yu;W. Zhang;J. Bonilla;C. Brainerd;R. Breedon;M. Calderon De La Barca Sanchez;M. Chertok;J. Conway;P. T. Cox;R. Erbacher;G. Haza;F. Jensen;O. Kukral;R. Lander;M. Mulhearn;D. Pellett;B. Regnery;D. Taylor;Y. Yao;F. Zhang;M. Bachtis;R. Cousins;A. Datta;D. Hamilton;J. Hauser;M. Ignatenko;M. A. Iqbal;T. Lam;W. A. Nash;S. Regnard;D. Saltzberg;B. Stone;V. Valuev;K. Burt;Y. Chen;R. Clare;J. W. Gary;M. Gordon;G. Hanson;G. Karapostoli;O. R. Long;N. Manganelli;M. Olmedo Negrete;W. Si;S. Wimpenny;Y. Zhang;J. G. Branson;P. Chang;S. Cittolin;S. Cooperstein;N. Deelen;D. Diaz;J. Duarte;R. Gerosa;L. Giannini;D. Gilbert;J. Guiang;R. Kansal;V. Krutelyov;R. Lee;J. Letts;M. Masciovecchio;M. Pieri;B. V. Sathia Narayanan;V. Sharma;M. Tadel;A. Vartak;F. W??rthwein;Y. Xiang;A. Yagil;N. Amin;C. Campagnari;M. Citron;A. Dorsett;V. Dutta;J. Incandela;M. Kilpatrick;J. Kim;B. Marsh;H. Mei;M. Oshiro;M. Quinnan;J. Richman;U. Sarica;F. Setti;J. Sheplock;D. Stuart;S. Wang;A. Bornheim;O. Cerri;I. Dutta;J. M. Lawhorn;N. Lu;J. Mao;H. B. Newman;T. Q. Nguyen;M. Spiropulu;J. R. Vlimant;C. Wang;S. Xie;Z. Zhang;R. Y. Zhu;J. Alison;S. An;M. B. Andrews;P. Bryant;T. Ferguson;A. Harilal;C. Liu;T. Mudholkar;M. Paulini;A. Sanchez;W. Terrill;J. P. Cumalat;W. T. Ford;A. Hassani;E. MacDonald;R. Patel;A. Perloff;C. Savard;K. Stenson;K. A. Ulmer;S. R. Wagner;J. Alexander;S. Bright-thonney;Y. Cheng;D. J. Cranshaw;S. Hogan;J. Monroy;J. R. Patterson;D. Quach;J. Reichert;M. Reid;A. Ryd;W. Sun;J. Thom;P. Wittich;R. Zou;M. Albrow;M. Alyari;G. Apollinari;A. Apresyan;A. Apyan;S. Banerjee;L. A. T. Bauerdick;D. Berry;J. Berryhill;P. C. Bhat;K. Burkett;J. N. Butler;A. Canepa;G. B. Cerati;H. W. K. Cheung;F. Chlebana;M. Cremonesi;K. F. Di Petrillo;V. D. Elvira;Y. Feng;J. Freeman;Z. Gecse;L. Gray;D. Green;S. Gr??nendahl;O. Gutsche;R. M. Harris;R. Heller;T. C. Herwig;J. Hirschauer;B. Jayatilaka;S. Jindariani;M. Johnson;U. Joshi;T. Klijnsma;B. Klima;B. Kreis;K. H. M. Kwok;S. Lammel;D. Lincoln;R. Lipton;T. Liu;C. Madrid;K. Maeshima;C. Mantilla;D. Mason;P. McBride;P. Merkel;S. Mrenna;S. Nahn;J. Ngadiuba;V. O???Dell;V. Papadimitriou;K. Pedro;C. Pena;O. Prokofyev;F. Ravera;A. Reinsvold Hall;L. Ristori;E. Sexton-Kennedy;N. Smith;A. Soha;W. J. Spalding;L. Spiegel;S. Stoynev;J. Strait;L. Taylor;S. Tkaczyk;N. V. Tran;L. Uplegger;E. W. Vaandering;H. A. Weber;D. Acosta;P. Avery;D. Bourilkov;L. Cadamuro;V. Cherepanov;F. Errico;R. D. Field;D. Guerrero;B. M. Joshi;M. Kim;E. Koenig;J. Konigsberg;A. Korytov;K. H. Lo;K. Matchev;N. Menendez;G. Mitselmakher;A. Muthirakalayil Madhu;N. Rawal;D. Rosenzweig;S. Rosenzweig;J. Rotter;K. Shi;J. Sturdy;J. Wang;E. Yigitbasi;X. Zuo;T. Adams;A. Askew;R. Habibullah;V. Hagopian;K. F. Johnson;R. Khurana;S. Kim;T. Kolberg;G. Martinez;H. Prosper;C. Schiber;O. Viazlo;R. Yohay;J. Zhang;M. M. Baarmand;S. Butalla;T. Elkafrawy;M. Hohlmann;R. Kumar Verma;D. Noonan;M. Rahmani;F. Yumiceva;M. R. Adams;H. Becerril Gonzalez;R. Cavanaugh;X. Chen;S. Dittmer;O. Evdokimov;C. E. Gerber;D. A. Hangal;D. J. Hofman;A. H. Merrit;C. Mills;G. Oh;T. Roy;S. Rudrabhatla;M. B. Tonjes;N. Varelas;J. Viinikainen;X. Wang;Z. Wu;Z. Ye;M. Alhusseini;K. Dilsiz;R. P. Gandrajula;O. K. K??seyan;J. -P. Merlo;A. Mestvirishvili;J. Nachtman;H. Ogul;Y. Onel;A. Penzo;C. Snyder;E. Tiras;O. Amram;B. Blumenfeld;L. Corcodilos;J. Davis;M. Eminizer;A. V. Gritsan;S. Kyriacou;P. Maksimovic;J. Roskes;M. Swartz;T. ??. V??mi;A. Abreu;J. Anguiano;C. Baldenegro Barrera;P. Baringer;A. Bean;A. Bylinkin;Z. Flowers;T. Isidori;S. Khalil;J. King;G. Krintiras;A. Kropivnitskaya;M. Lazarovits;C. Lindsey;J. Marquez;N. Minafra;M. Murray;M. Nickel;C. Rogan;C. Royon;R. Salvatico;S. Sanders;E. Schmitz;C. Smith;J. D. Tapia Takaki;Q. Wang;Z. Warner;J. Williams;G. Wilson;S. Duric;A. Ivanov;K. Kaadze;D. Kim;Y. Maravin;T. Mitchell;A. Modak;K. Nam;F. Rebassoo;D. Wright;E. Adams;A. Baden;O. Baron;A. Belloni;S. C. Eno;N. J. Hadley;S. Jabeen;R. G. Kellogg;T. Koeth;A. C. Mignerey;S. Nabili;C. Palmer;M. Seidel;A. Skuja;L. Wang;K. Wong;D. Abercrombie;G. Andreassi;R. Bi;S. Brandt;W. Busza;I. A. Cali;Y. Chen;M. D???Alfonso;J. Eysermans;C. Freer;G. Gomez Ceballos;M. Goncharov;P. Harris;M. Hu;M. Klute;D. Kovalskyi;J. Krupa;Y. -J. Lee;C. Mironov;C. Paus;D. Rankin;C. Roland;G. Roland;Z. Shi;G. S. F. Stephans;J. Wang;Z. Wang;B. Wyslouch;R. M. Chatterjee;A. Evans;P. Hansen;J. Hiltbrand;Sh. Jain;M. Krohn;Y. Kubota;J. Mans;M. Revering;R. Rusack;R. Saradhy;N. Schroeder;N. Strobbe;M. A. Wadud;K. Bloom;M. Bryson;S. Chauhan;D. R. Claes;C. Fangmeier;L. Finco;F. Golf;C. Joo;I. Kravchenko;M. Musich;I. Reed;J. E. Siado;G. R. Snow;W. Tabb;F. Yan;A. G. Zecchinelli;G. Agarwal;H. Bandyopadhyay;L. Hay;I. Iashvili;A. Kharchilava;C. McLean;D. Nguyen;J. Pekkanen;S. Rappoccio;A. Williams;G. Alverson;E. Barberis;Y. Haddad;A. Hortiangtham;J. Li;G. Madigan;B. Marzocchi;D. M. Morse;V. Nguyen;T. Orimoto;A. Parker;L. Skinnari;A. Tishelman-Charny;T. Wamorkar;B. Wang;A. Wisecarver;D. Wood;S. Bhattacharya;J. Bueghly;Z. Chen;A. Gilbert;T. Gunter;K. A. Hahn;Y. Liu;N. Odell;M. H. Schmitt;M. Velasco;R. Band;R. Bucci;A. Das;N. Dev;R. Goldouzian;M. Hildreth;K. Hurtado Anampa;C. Jessop;K. Lannon;J. Lawrence;N. Loukas;D. Lutton;N. Marinelli;I. Mcalister;T. McCauley;C. Mcgrady;K. Mohrman;Y. Musienko;R. Ruchti;P. Siddireddy;A. Townsend;M. Wayne;A. Wightman;M. Zarucki;L. Zygala;B. Bylsma;B. Cardwell;L. S. Durkin;B. Francis;C. Hill;M. Nunez Ornelas;K. Wei;B. L. Winer;B. R. Yates;F. M. Addesa;B. Bonham;P. Das;G. Dezoort;P. Elmer;A. Frankenthal;B. Greenberg;N. Haubrich;S. Higginbotham;A. Kalogeropoulos;G. Kopp;S. Kwan;D. Lange;D. Marlow;K. Mei;I. Ojalvo;J. Olsen;D. Stickland;C. Tully;S. Malik;S. Norberg;A. S. Bakshi;V. E. Barnes;R. Chawla;S. Das;L. Gutay;M. Jones;A. W. Jung;S. Karmarkar;D. Kondratyev;M. Liu;G. Negro;N. Neumeister;G. Paspalaki;C. C. Peng;S. Piperov;A. Purohit;J. F. Schulte;M. Stojanovic;J. Thieman;F. Wang;R. Xiao;W. Xie;J. Dolen;N. Parashar;A. Baty;M. Decaro;S. Dildick;K. M. Ecklund;S. Freed;P. Gardner;F. J. M. Geurts;A. Kumar;W. Li;B. P. Padley;R. Redjimi;W. Shi;A. G. Stahl Leiton;S. Yang;L. Zhang;Y. Zhang;A. Bodek;P. de Barbaro;R. Demina;J. L. Dulemba;C. Fallon;T. Ferbel;M. Galanti;A. Garcia-Bellido;O. Hindrichs;A. Khukhunaishvili;E. Ranken;R. Taus;B. Chiarito;J. P. Chou;A. Gandrakota;Y. Gershtein;E. Halkiadakis;A. Hart;M. Heindl;O. Karacheban;I. Laflotte;A. Lath;R. Montalvo;K. Nash;M. Osherson;S. Salur;S. Schnetzer;S. Somalwar;R. Stone;S. A. Thayil;S. Thomas;H. Wang;H. Acharya;A. G. Delannoy;S. Fiorendi;S. Spanier;O. Bouhali;M. Dalchenko;A. Delgado;R. Eusebi;J. Gilmore;T. Huang;T. Kamon;H. Kim;S. Luo;S. Malhotra;R. Mueller;D. Overton;D. Rathjens;A. Safonov;N. Akchurin;J. Damgov;V. Hegde;S. Kunori;K. Lamichhane;S. W. Lee;T. Mengke;S. Muthumuni;T. Peltola;I. Volobouev;Z. Wang;A. Whitbeck;E. Appelt;S. Greene;A. Gurrola;W. Johns;A. Melo;H. Ni;K. Padeken;F. Romeo;P. Sheldon;S. Tuo;J. Velkovska;M. W. Arenton;B. Cox;G. Cummings;J. Hakala;R. Hirosky;M. Joyce;A. Ledovskoy;A. Li;C. Neu;C. E. Perez Lara;B. Tannenwald;S. White;E. Wolfe;N. Poudyal;K. Black;T. Bose;C. Caillol;S. Dasu;I. De Bruyn;P. Everaerts;F. Fienga;C. Galloni;H. He;M. Herndon;A. Herv??;U. Hussain;A. Lanaro;A. Loeliger;R. Loveless;J. Madhusudanan Sreekala;A. Mallampalli;A. Mohammadi;D. Pinna;A. Savin;V. Shang;V. Sharma;W. H. Smith;D. Teague;S. Trembath-Reichert;W. Vetens
2022-01-01
Abstract
A search for long-lived particles (LLPs) produced in association with a Z boson is presented. The study is performed using data from proton-proton collisions with a center-of-mass energy of 13 TeV recorded by the CMS experiment during 2016-2018, corresponding to an integrated luminosity of 117fb(-1).( )The LLPs are assumed to decay to a pair of standard model quarks that are identified as displaced jets within the CMS tracker system. Triggers and selections based on Z boson decays to electron or muon pairs improve the sensitivity to light LLPs (down to 15 GeV). This search provides sensitivity to beyond the standard model scenarios which predict LLPs produced in association with a Z boson. In particular, the results are interpreted in the context of exotic decays of the Higgs boson to a pair of scalar LLPs (H -> SS). The Higgs boson decay branching fraction is constrained to values less than 6% for proper decay lengths of 10-100 mm and for LLP masses between 40 and 55 GeV. In the case of low-mass (approximate to 15 GeV) scalar particles that subsequently decay to a pair of b quarks, the search is sensitive to branching fractions B(H -> SS) < 20% for proper decay lengths of 10-50 mm. The use of associated production with a Z boson increases the sensitivity to low-mass LLPs of this analysis with respect to gluon fusion searches. In the case of 15 GeV scalar LLPs, the improvement corresponds to a factor of 2 at a proper decay length of 30 mm.