Measurement of the inclusive production cross sections for forward jets and for dijet events with one forward and one central jet in pp collisions at $ \sqrt {s} = 7 $ TeV

A Zatserklyaniy,P Siegrist,M Müntel,A Van Spilbeeck,W Reece,N Almeida,F Odorici,D Krpic,L M Villasenor-Cendejas,A Morelos Pineda,C A Carrillo Montoya,C Saout,S L Zang,G B Mohanty,P Fabbricatore,G Gomez Ceballos,M Schmanau,M Haguenauer,M Guchait,I Lazzizzera,X T Huang,P Sellers,P Kyberd,R Vilar Cortabitarte,K V Tsang,A A Ocampo Rios,E Twedt,U Berzano,S Esen,A Bhatti,T Le Grand,W L Prado Da Silva,S Guragain,F M Stober,J Duris,P M Ribeiro Cipriano,N Van Remortel,D Lopes Pegna,A Deisher,B Fabbro,R Volpe,E Widl,C Mavrommatis,A T Laasanen,J W Gary,R Gray,J P Fernández Ramos,S Chatrchyan,S Blyweert,P Lobelle Pardo,P Van Hove,B Rutherford,G Della Ricca,J Weng,T J Mertzimekis,H Hesari,B Hegner,P Petrov,Y Choi,C Vander Velde,W Bertl,B A Barnett,T Miceli,B Marangelli,G P Di Giovanni,J Callner,E B Ziebarth,J Lykken,G Nicolas Kaufman,F Nowak,H A Salazar Ibarguen,A Rizzi,G Williams,A Knapitsch,J F De Trocóniz,T Y Ling,L Lloret Iglesias,V E Bazterra,A Delgado Peris,P Martinez Ruiz Del Arbol,M Vidal Marono,D A Sanders,I Grigelionis,K F Chen,S G Heo,A York,W Kiesenhofer,C Jarvis,I M Anghel,F J Munoz Sanchez,J Gronberg,C Kottachchi Kankanamge Don,L Romero,T Yetkin,K S Grogg,Q Ingram,K Gabathuler,C Wissing,A Kayis Topaksu,A Melo,J Robles,L Wendland,L Wehrli,C Broutin,C Rohringer,W Behrenhoff,K Nirunpong,O Koybasi,S Goadhouse,S Conetti,S P Shipkowski,P Vichoudis,D Mercier,D Del Re,H Seo,P G Ferreira Parracho,S Tkaczyk,W De Boer,B Heyburn,C Milstène,M Park,S Greder,G Dirkes,T Sabonis,J A Brochero Cifuentes,P Jindal,L Barbone,S Bolognesi,D Bodin,N Pacifico,J Suarez Gonzalez,J Klukas,R Ranieri,T Danielson,C Barth,D C Miner,B De La Cruz,M Barrett,T Schum,Y H Chang,P Chang,H Gamsizkan,K Y Kao,E Di Marco,C Baty,J Rodrigues Antunes,E A Albayrak,E Sudano,G Lungu,M Heinrich,J Temple,J G Branson,J Chung,J Gartner,A Heikkinen,S Wakefield,C R Newsom,M Mazzucato,S Bobrovskyi,I Manolakos,R Cousins,M De Gruttola,S Honc,J C Sanabria,C De Oliveira Martins,J Whitmore,R M Brown,P Cushman,L Sala,G M Bilei,A Gurtu,A Korpela,A Hunt,Y J Lei,S Khalid,M Ivova Rikova,R Nandi,M Della Negra,P Arce,A Potenza,R Frazier,A David,T Geralis,R G Kellogg,G Schott,L Rebane,G Georgiou,R Kroeger,S Qazi,M Kossov,M Gataullin,T S Anjos,J Draeger,W Haj Ahmad,S Di Guida,P E Karchin,N De Filippis,C Lazaridis,J St John,K A Ulmer,D Uzun,M Kirn,F De Guio,S Mueller,E Carrera Jarrin,J Haupt,S Reucroft,R Musenich,R Beuselinck,J Alcaraz Maestre,M Polujanskas,R Gokieli,Y Tschudi,F Vazquez Valencia,A M Guler,T Christiansen,J Olzem,D Dammann,M Serin,I V Akin,R K Shivpuri,S Sengupta,A F Barfuss,U E Surat,W T Ford,B Caponeri,G Kozlov,H El Mamouni,V Cuplov,T Kuhr,M C Fouz,D P Eartly,T R Fernandez Perez Tomei,C Markou,F Marinho,T Caebergs,M Kress,J C Yun,P Sharp,H Pieta,G P Van Onsem,V Adler,D Sprenger,H Park,I Svintradze,I Shreyber,J Zang,G De Lentdecker,J A Gomez,H S Chen,P Nef,A Nappi,A Peterman,V Petrov,A Scheurer,M Pernicka,S Bhattacharya,R Stringer,J G Shiu,R Vasquez Sierra,L K Gibbons,E Mccliment,S Paktinat Mehdiabadi,P Torre,J Thomsen,Th Müller,A Falkiewicz,M Naimuddin,J Pivarski,L Agostino,D Tornier,T Son,A Ellithi Kamel,M De Palma,V Grishin,J Anderson,M I Asghar,E Nesvold,D Sillou,P Killewald,S Somalwar,P Van Mulders,M Davids,B W Kennedy,M Kovac,S J Qian,B Mura,T Weiler,A Kapusi,A Drozdetskiy,P Goldenzweig,N Zaganidis,P Bellan,N Manna,S Banerjee,S Liang,P Verdier,G Cirino,D Martschei,D Martisiute,R Jussen,J Swanson,U Nauenberg,G M Dallavalle,A Lopez Virto,G Grégoire,M Eads,G Hu,E Norbeck,P Miné,P Otiougova,Y Gotra,D Ungaro,M Vazquez Acosta,S Frosali,C Nägeli,Y Ban,R Doesburg,A Singovsky,V Monaco,J Ribnik,D Domínguez Vázquez,K S Sim,S Tourneur,J Chasserat,M Sasseville,S Schael,A Linn,L Kreczko,M Bedjidian,J E Ramirez Vargas,J A Bakken,A Aranyi,S Rogerson,A Krokhotin,M Hoch,M Cutajar,V Kozhuharov,R Vidal,C Fernandez Bedoya,M Niegel,N Darmenov,U Baur,M A Reyes-Santos,J M Vizan Garcia,J Marrouche,B Gomez Moreno,J Slaunwhite,A Richards,S Walsh,D Engh,D Liang,M J Ryan,D Matos Figueiredo,R Rahmat,M Merola,T Miao,G Walzel,O Atramentov,U Gebbert,E Salvati,I Vodopiyanov,G Kukartsev,S Evstyukhin,V Pavlunin,A Vilela Pereira,P Sauerland,Z Hatherell,D Lanske,C Viviani,M Xu,C Boulahouache,H Gerwig,S M Silva Do Amaral,F Romano,M Finger,C Diez Pardos,H Van Haevermaet,Zero J Kim,W Van Doninck,L Perera,H Kluge,B Klein,S Khalatyan,S Fonseca De Souza,J Rennefeld,S De Visscher,J Ellison,K Kaschube,M Segala,A De Benedetti,S Griffiths,M A Mahmoud,L Di Matteo,C K Lae,V Gaultney,L Millischer,D Winn,R D Field,N Ratnikova,A S Yoon,A Bodek,L Mucibello,L Perchalla,E Friis,J N Butler,M Chan,T Kypreos,M Rosin,M Jones,M A Shah,C Magass,M Zeise,K Rossato,Yu Andreev,S Vanini,S Metson,R Godang,T Whyntie,S A Schmitz,J Lellouch,M J Bilinskas,J M Kohli,K Sudhakar,J Hays,T Rommerskirchen,C Bardak,S Lacaprara,J Gruschke,V Patras,R Loveless,A Papageorgiou,S Sala,R Schmidt,X Wan,M Erofeeva,R Moser,A Korablev,T Speer,Z J Guo,S Cihangir,F Gasparini,K Banzuzi,A Lucaroni,V Khotilovich,A Vorobyev,K Arisaka,J Zablocki,J Vaughan,L Tauscher,V Chetluru,M Issah,A Bornheim,H Arfaei,L Brigliadori,J Efron,A De Cosa,E Castro,A Meyer,V Maroussov,R Carroll,G Tinti,E De La Cruz-Burelo,M Deliomeroglu,E M Da Costa,B Curé,P Baesso,M Janulis,M Giunta,W Andrews,A Sparrow,G Giurgiu,I Heredia-De La Cruz,V Genchev,V Halyo,R Remington,M De Mattia,D Lazic,S Gollapinni,D De Jesus Damiao,H Xiao,M Boutemeur,M Balazs,J Duarte Campderros,M Hollingsworth,T Tabarelli De Fatis,S R Ro,M Chamizo Llatas,M Pimiä,P Bloch,Y Bai,A Rose,G Cerizza,E Brownson,R Frühwirth,S Petrushanko,D J Kong,J Ziegler,S Kailas,B Lutz,R Wilken,S Goy Lopez,H Silverwood,A Anastassov,P Mane,S Costantini,Z Wan,M Jindal,C Urscheler,C Silvestre,S H Chuang,R A Ofierzynski,T Kress,C Plager,J Sammet,S D Worm,F Simonetto,C Thiebaux,B Tali,G Segneri,F Palmonari,S Won,S Afanasiev,P De Barbaro,S Semenov,D Toback,C Hackstein,D Benedetti,J De Favereau De Jeneret,M Meneghelli,R K Choudhury,V Timciuc,V Oguri,A Flossdorf,H Enderle,H Topakli,D Sunar Cerci,D Montanino,A Everett,P Van Mechelen,J A Coarasa Perez,N K Mondal,Y S Chung,B Alver,A Markina,M Bontenackels,T Scarborough,T Mäki,S Carrillo Moreno,L M Lebolo,D Vishnevskiy,S König,D Franci,J Puerta Pelayo,K Sogut,J Tomaszewska,T Klimkovich,N Mohr,F Bostock,M Mohammadi Najafabadi,C Jeong,B Mathias,E Daubie,P Bartalini,R Gonzalez Suarez,L Lusito,G N Kim,Sandra S Padula,O Oberst,M Jenkins,M Deniz,I Villella,B Camanzi,M Aldaya Martin,J Martínez-Ortega,K Freudenreich,R Trayanov,R Magaña Villalba,E Luiggi Lopez,L Masetti,C Mesropian,W Dominik,A Baden,C Eskew,C Neu,M Stein,M Hashemi,R Kelley,M Searle,L N Vergili,G Bauer,A Petrukhin,A Guneratne Bryer,J Sibille,V Dero,T Maes,B Scurlock,M Valdata,P Gras,J.-C Fontaine,D Polic,P Schieferdecker,E Casimiro Linares,B R Drell,S C Kao,K W Bell,A Raval,H Held,R Wilkinson,V Tcholakov,A J Bell,A De Roeck,K S Lee,S Y Jun,K Goulianos,J Conway,L Demortier,G Merino,H Pi,M Bergholz,W Martin,I Segoni,M Luk,K H Hoffmann,Y Fu,E A De Wolf,J Babb,P Kalavase,M Marienfeld,M Feindt,H Teng,M R Adams,I Belotelov,N Pastrone,A Rinkevičius ,C Dietz,A Heister,P Vitulo,V Karjavin,G Masetti,J.-M Brom,G Dissertori,L Benucci,R Rusack,J Bochenek,G Cerminara,O Buchmüller ,F Rebassoo,T Bose,I P J Shipsey ,H Sakulin,J Erö,C Rogan,A Rýd ,P Verwilligen,M Malek,D D’Enterria,S Sarkar,J Thom,P Geffert,P Govoni,M Simon,V Murzin,S Spanier,Giuseppe Antonio Pierro ,F Fassi,S Obraztsov,J Andreä ,F Santanastasio,D M Newbold,A Gaz,R Houtz,P Giacomelli,J Yelton,V Kumar,L Teodorescu,J Pálinkás ,G Abbiendi,M Geisler,V Bhatnagar,F Fanzago,C Johnston,T Medvedeva,A Radi,A Knutsson,C Autermann,C Lin,M Makouski,M Déjardin ,M J Kortelainen,T Lindén,B Kim,A V Gritsan,P Bunin,M Stoye,D J Karmgard,P Piroué,Y J Lee ,G Broccolo,A Pompili,M Johnson,M Calderón De La Barca Sánchez ,T Dorigo,K Kousouris,James W Smith ,L Orsini,M Dittmar,F Nessi‐Tedaldi ,M Ekmedžić ,V Savrin,L A Khein ,I Yu,J Letts,Y Iiyama,A Holzner,R P Kenny,M I Josa,K Hatakeyama,L Felď ,P G Mercadante,R Marco,G Bruno,M Cepeda,L Lyons,J Harvey,Y Hsiung,A Ferrando,W Luo,H Méndez ,S Troitsky,A.-M Magnan,M Zanetti,P C Bhat,J G Acosta,N Daci,C Nicolaou,D Klingebiel,S Ahuja,B Millán Mejías ,P A Razis,A Bethani,J Hanlon,A Biselli,M Tosi,S Singh ,A Branca,B Parida,I Redondo,T Kamon,G Rakness,P Ronchese,V Cherepanov,P Rumerio,K Deiters,C Justus,K Klein,Y Ivanov,P Vanlaer,L Benhabib,G Zumerle,D Lange,I Dumanoğlu ,O Charaf,S Gninenko,F Ratnikov,M A Buchmann,D J A Cockerill,L Malgeri,J Tao,S Paoletti,C Riccardi,D Ferenček ,F Beaudette,J Lee,S Boutle,S A Koay,S Erhan,N Godinović ,S Kunori,J Rohlf,C Foudas,T Frueboes,G Flucke,J Hirschauer,A Sill,A Hinzmann,B Gobbo,V Perelygin,K Ozdemir,N Manthos,P Traczyk,F Giordano,D Green,P Klabbers,H W K Cheung,C Silkworth,R Covarelli,A Ershov,D Marlow,U Goerlach,J Molnár ,H Geenen,C Fantasia,D Evans,D R Wardrope ,M Nguyen,M Malberti,H Kim,C Laganá ,G A Alves,R Schöfbeck,P Harris,F Ptochos,Ashok Kumar ,D Boumediene,J Fernández Menéndez ,G Bolla,E Sexton-Kennedy,M Jarvis,P Wagner,Pedro Ribeiro ,N Mccoll,H C Kaestli,J Hugon,D Puigh,S Nahn,J Bendavid,M Vergili,A F Osório Oliveros ,W H Smith,V Kim,F P Schilling ,C Palmer,H Malbouisson,A Bonato,J Goldstein,A Ghezzi,J Velkovska,N Adam,S Bilmiş ,S Jindariani,E Avdeeva,S Sanders,F Pauß ,I Marfin,M Renz,A Belyaev,S Özkorucuklu ,D Gerbaudo,A Pashenkov,C Campagnari,M Anderson,I Evangelou,K Kaadze,M Bluj,I Hoş ,E Seo,X Shi,F Fabbri,M Bachtis,H Saka,S Luyckx,H Reithler,A Fanfani,S Gundacker,C Tully,B Cox,M Marionneau,C Nuttens,Y Pakhotin,M E Dinardo,W D Teo,E Gottschalk,P Adžić ,M Choi,T Schöerner-Sadenius ,J Malclès ,Chia‐Ming Kuo ,F A Triantis,V D Elvira,S Rappoccio,G Auzinger,M Dragicevic,F Hoehle,M Krämer,N Beaupère ,V Khachatryan,A Svyatkovskiy,C Tuvé ,M Perfilov,H Stadie,E Karavakis,J Duarte,A Lanaro,N Varelas,P Raics,M Pesaresi,A Pfeiffer,A Brinkerhoff,H Jung,L Silvestris,S Gennai,K Rabbertz,M Spiropulu,G Petrillo,F Duru,M Gavrilenko,M Fernández ,R Potenza,C George,S Piperov,B Pollack,G Sultanov,A Singh ,I J Cabrillo,M Rovere,M Pieri,W.-S Hou,Y Chào ,M H.g Souza ,K A Hahn,M Chiorboli,S Thomas,E Berry,M E Pol,M Herndon,A Stahl,J Milošević ,A Polatöz ,W L Aldá ,V Innocente,G Franzoni,E Gülmez,J Cuevas,D Piccolo,S Troshin,N Tyurin,K M Ecklund,H D Yoo,A Hervé,A Kharchilava,A Sznajder,V Epshteyn,G Mantovani,C Delaere,J Gilmore,P Hidas,A Jafari,M W Arenton,J E Cole,M S Rudolph ,D Kovalskyi,J L Rodriguez,A Poll,V Lemaı̂tre ,C H Shepherd-Themistocleous,M Rodenburg,I Suarez,M Görner,G Karapinar,M B Tonjes,D C Son,E Appelt,A Tiko,T Pearson,C.-E Wulz,X Quan,A Rossi ,A Massironi,V Krutelyov,A Campbell,C H Jiang,S Gowdy,A O M Iorio,S My,J Hegeman,T Bolton,S Nuzzo,M Merschmeyer,W A Khan,D Blöch ,A Bocci,V Sola,D Futyan,E Tuovinen,L Boldizsár ,H K Wöhri,A Elliott-Peisert,N Parashar,T Rohe,K Flowers,A Hektor,A Santoro,P G Verdini,R Wolf,R Khurana,A Schmidt,J Incandela,E Clément ,C Lourenço,Y Kubota,E Calvo,M Chen,G Petrucciani,I González Caballero ,M Lebourgeois,G B Cerati,V Hagopian,A Starodumov,F Palla,M Sani,M Turner,J W Berryhill ,Y Tu,R Walsh,C Farrell,M Grassi,S Beranek,G Benelli,P Marage ,S Ochesanu,M Khakzad,P Lariccia,M Diemoz,M Musich,D M Morse,A Mott,U Behrens,S Khalil,H Hoffmann ,A Volodko,F Özok ,R Montalvo,D Teyssier,P H Butler,L Levchuk,K Theofilatos,D Giordano,E Alagöz ,T Virdee,L Bäni,A Ferapontov,G Mäggi ,M Chadwick,S R Wagner,M Zieliński ,K Gill,M Hohlmann,P D Luckey,I Vorobiev,W Lustermann,S Goldberg,A Mestvirishvili,D Silvers,K Höepfner ,R Démina ,F Cavallari,S Perriès ,B P Padley,A Martelli,R Stone,I Ojalvo,M Hildreth,A Kalinowski,F Romeo,D Fasanella,T Camporesi,C Albajar,L Tourtchanovitch,I Golutvin,M Felcini,T Schwarz,M Maes,S M Etesami,A Whitbeck,G Gómez ,F Chlebana,D Barney,H Rohringer,A Zhokin,C Veelken,Thomas Hermanns ,Jagbir Singh ,D Liko,E Torassa,В Жуков ,J Sánchez ,E Palencia Cortezón ,R.-S Lu,T Hreus,M Titov,M Peruzzi,C Jessop,D Dobur,M Chasco,Y M Tzeng,K Lassila-Perini,A Sharma,F Raupach,J Hauk,J Y Kim,J Hammer,I Smirnov,M Ata,U Dosselli,M Ignatenko,L Ceard,A Savin,M Grothe,A Ruiz-Jimeno,B Ille,M Gallinaro,D Pellett,S Lowette,A H Ball,R Hirosky,R Pleština ,S Belforte,M Squires,N Eggert,H Mermerkaya,M Kazana,S Harper,G Iaselli,J P Gomez ,A Çakır ,S Sen,I Bloch,G R Snow,S Argirò ,S Bitioukov,F Hartmann,Y Chen,C J Edelmaier,M Szleper,D Treille,A Marinov,J Liao,R Redjimi,F J M Geurts,Michael Henry Schmitt ,D Piparo,D Eckstein,S Czellár ,V Gavrilov,M Sigamani,M Mulders,J Santaolalla,D Gyun,D Bortoletto,D Wood,J D’Hondt,M Weinberg,L Mundim,I Bayshev,G Rolandi,G Polese,W Gabella,V Oreshkin,M Dželalija ,V J Smith,I Osipenkov,O Grachov,R Castaldi,D Acosta,K Maeshima,D Lelas,J Bernardini,U Joshi,J Lange,S W Lee,J Eugster,G Kaußen ,H Brun,P Paolucci,Z Szillási ,J Dolen,G Hanson,W Johns,C Ferro,W Lohmann,F Meier,B Bilki,C Brew,B Roland,S V Gleyzer,P Kokkas,M C Sawley ,R Cavanaugh,C Dozen,D Petyt,H B Newman,P Katsas,M Chertok,A Khan,P Lecomte,T Ma,C Botta,J Tucker,K Piotrzkowski,N Strobbe,I Fisk,D Ćutts ,I Iashvili,C W Fabjan ,R Carlin,V Palichik,L Winstrom,M Guthoff,J Thompson,M H Zoeller,J Zabel,X Wang,S Lehti,D Baumgartel,L Barone,L Sulak,B Snook,S Kang,G Davies,G Zito,S A Tupputi ,H Nguyen,S V Rusakov,F Ligabue,R Lipton,M Kirsanov,S Marcellini,F Cossutti,F L Navarria,J Hauser,B X Zhu ,G Bencze,G Barbagli,M Biasini,V Chiochia,N Sen,V Krychkine,D Mekterović ,Z K Liu,E Schlieckau,E Gallo,H Castilla‐Valdez ,K Romanowska-Rybinska,R Rossin,A Léonard,L Fiore,J Marco,M Górski,K Burkett,O Militaru,J Seixas,A Tapper,S Shmatov,B Frisch,S Maruyama,A Ivanov,A Luthra,T Adams,W Carvalho,C Schwick,J S Werner,C Roland,Y Zheng,А Спиридонов ,M Marone,S Padhi,A Özpineci ,S Başeğmez ,M Vutova,P Azzurri,P Markowitz,S Ozturk,N Saoulidou,P Depasse,A Gribushin,J Härkönen,B Calvert,M Zeyrek,F Stöckli,W J Womersley,G Roland,N Colino,Yang Yu ,W Erdmann,N Wardle,A Taurok,G Martı́nez ,M Snowball,T Williams,G Mitselmakher,B K Heltsley ,E C Chabert,J Wetzel,N Rompotis,P Robmann,T Lomtadze,C Civinini,J M Marraffino,A García-Bellido ,J Leonard,S Arora,T Chwalek,S P Ratti,A Kopecký ,D Spiga,B Betchart,S I Cooper,M Murray,L Uplegger,M Abbrescia,B Gomber,M Cerrada,C Henderson,B Hong,F A Dias,A Custódio,L Borrello,M Klute,В Сулимов ,A Perieanu,M Pierini,E Migliore,Wolfram Dietrich Zeuner ,D Lincoln,R Erbacher,M Tadel,N Tambe,S Shrestha,J Turkewitz,N Dupont-Sagorin,J Tuominiemi,B Ujvári ,E Contreras-Campana,S Costa,Andreas Oehler ,G I Veres,W Waltenberger,W Lin,M Ataç ,G Y Jeng,N Odell,A Solano,M Yang,S Taroni,M Mooney,J Damgov,J G Bian,E Barberis,C Sander,M Wayne,J L Faure,R Ryutin,L Scodellaro,B Casal,V Stolin,P Busson,W Ko,S Gascon,W Busza,P T Cox,M Djordjevic,M Krammer,G Pugliese,G J Kunde,M Tytgat,C Maguire,K Mishra,S Dasu,M Nespolo,B Dorney,G P Heath,P Schlein,N Sönmez ,S Folgueras,F Matorras,R Mankel,J Pela,R Eusebi,L Lista,E Ntomari,C Favaro,F J Ronga,W Ferguson,J Berger,G Karapostoli,A Lath,R Conway,D Fehling,Masashi Takahashi ,K Petridis,A Olbrechts,G Daskalakis,H Flächer ,J Smith,A Messineo,S Braibant-Giacomelli,E M Gregores,J Sturdy,C Contreras-Campana,D Sperka,A Perloff,N Amapane,D Krücker,S Naumann-Emme,A Tricomi,P Spagnolo,C Bernet,S Gonzi,A Dierlamm,L Gray,F Fiori,K Buńkowski ,A Vartak,M Margoni,P Bargassa,F Yumiceva,L M Pant,A Karadzhinova,D J Summers ,S Maselli,B Dahmes,W Hopkins,H Jensen,R Y Zhu,N Bacchetta,B Kreis,R Gomez-Reino Garrido,Ž Antunović ,D M Raymond,N Marinelli,J Hollar,D Wang,G Gökbulut ,K M Smith ,G Breto,T Peiffer,H Bakhshiansohi,E Tiras,A Pin,L Basso,M E Mattson ,K Lannon,C Heidemann,V Azzolini,C Calabria,C Hill,I Macneill,P Kurt,S Liu,A Givernaud,G Tonelli,M Kasemann,S Wimpenny,T Boccali,D Renker,J Zhang,N Mucia,I Mikulec,M Zeinali,M Schröder,D Majumder,G Fedi,H Białkowska ,K Harder,H Snoek,L Bianchini,G Landsberg,C Grab,A Sanchez ,A Dominguez,J Steggemann,L Gouskos,J Karancsi,E Tuominen,O R Long,A Graziano,J Han,J Flix,M Azarkin,J Olson,M Karim,K Doroba,M Ruspa,J Russ,A Thea,S Bansal,S Choi,A Calderón ,F Siklér ,W Adam,P Sphicas,V Andreev,M Kirakosyan,M Friedl,J P Chou,R Klanner,J R Komaragiri,L Litov,Yugang Ma ,A Tropiano,S B Beri,I Puljak,Y Eshaq,L Foà,N Neumeister,D Lomidze,C Seez,S Lynch,D Barge,K Sumorok,M Erdmann,V Veeraraghavan,S Das,P Janot,R Rougny,P Hebda,N Krasnikov,A Penzo,K Bloom,A Lanev,J E Kim,W Flanagan,S Xie,J Rander,D H Miller,B Kargoll,D R Claes,P Shukla,R Clare,M Yalvac,E Meschi,P Jarry,M Jeitler,A Gurrola,Z Wang,A Y Rodríguez-Marrero,R Wigmans,L Perrozzi,A Kraan,J A Coughlan,Y Onel,U Heintz,I Dremin,X Janssen,F Moortgat,U Gasparini,A Sobol,S Mersi,A Rácz ,L Pape,O Kaya,N Hörmann,P Mcbride,D Gigi,D Strom,E Olaiya,J Alexander,M Rossini,Y Cho,P Zotto,C Florez,Y Mao,D Stuart,O Hindrichs,N Pastika,A Perrotta,N Nishu,S Bianco,A Gilbert,P Levchenko,I C Park,S Jabeen,S Salur,P Musella,S Colafranceschi,A Nowack,F Thyssen,T Khurshid,G Mesyats,R Hall-Wilton,B Wysłouch ,V Matveev,D Favart,N J Hadley,W Lange,J Fay,S Malik,G Cappello,A Gozzelino,J Königsberg ,M Zakaria,B Lee,D Stickland,J Mnich,D A Belknap ,S 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doi:10.1007/jhep06(2012)036

Abstract

Abstract The inclusive production cross sections for forward jets, as well for jets in dijet events with at least one jet emitted at central and the other at forward pseudorapidities, are measured in the range of transverse momenta p T = 35-150 GeV/c in proton-proton collisions at $ \sqrt {s} = 7 $ TeV by the CMS experiment at the LHC. Forward jets are measured within pseudorapidities 3.2 < |η| < 4.7, and central jets within the |η| < 2.8 range. The differential cross sections d 2 σ/dp T dη are compared to predictions from three approaches in perturbative quantum chromodynamics: (i) next-to-leading-order calculations obtained with and without matching to parton-shower Monte Carlo simulations, (ii) pythia and herwig parton-shower event generators with different tunes of parameters, and (iii) cascade and hej models, including different non-collinear corrections to standard single-parton radiation. The single-jet inclusive forward jet spectrum is well described by all models, but not all predictions are consistent with the spectra observed for the forward-central dijet events.

Highlights

GeV/c in proton-proton collisions at s = 7 TeV by the Compact Muon Solenoid (CMS) experiment at the LHC
D6T and Z2 tunes [24, 51], pythia 8 with Tune 1 [25], herwig 6 [26] with underlying-event modelled with Jimmy [27], and herwig++ [28], (ii) NLO calculations obtained with the powheg package [52] as well as with nlojet++ [29] within the fastNLO [53] package, for different sets of parton densities, and (iii) the cascade [54, 55] and hej [34, 35] codes
The pythia and herwig Monte Carlo event generators are based on standard collinear (DGLAP) evolution, where the parton shower can be developed by ordering the parton splittings in parameterised function f (pT) or in virtuality Q2. herwig uses angular ordering for shower evolution

Summary

Introduction

The type of dijet final states studied in this analysis provides information on multi-parton production processes with large separations in pseudorapidity whose theoretical description involves multiple scales and possibly large logarithmic contributions. Such event topologies may show deviations from the parton radiation patterns expected from the standard Dokshitzer-Gribov-Lipatov-Altarelli-Parisi (DGLAP) evolution equations [8,9,10,11], as modelled in the approaches of e.g. Balitski-Fadin-Kuraev-Lipatov (BFKL) [12,13,14], Ciafaloni-Catani-Fiorani-Marchesini (CCFM) [15,16,17,18], or gluon saturation [19].

Methods

Results

Conclusion