Search for heavy metastable particles decaying to jet pairs in pp¯ collisions at s√=1.96 TeV T Aaltonen , B Alvarez Gonzalez , S Amerio , D Amidei , A Anastassov , A Annovi , J Antos , G Apollinari , J A Appel , A Apresyan , T Arisawa , A Artikov , J Asaadi , W Ashmanskas , B Auerbach , A Aurisano , F Azfar , W Badgett , A Barbarogaltieri , V E Barnes , B A Barnett , P Barria , P Bartos , M Bauce , G Bauer , F Bedeschi , D Beecher , S Behari , G Bellettini , J Bellinger , D Benjamin , A Beretvas , A Bhatti , M Binkley , D Bisello , I Bizjak , K R Bland , B Blumenfeld , A Bocci , A Bodek , D Bortoletto , J Boudreau , A Boveia , B Brau , L Brigliadori , A Brisuda , C Bromberg , E Brucken , M Bucciantonio , J Budagov , H S Budd , S Budd , K Burkett , G Busetto , P Bussey , A Buzatu , C Calancha , S Camarda , M Campanelli , M Campbell , F Canelli , A Canepa , B Carls , D Carlsmith , R Carosi , S Carrillo , S Carron , B Casal , M Casarsa , A Castro , P Catastini , D Cauz , V Cavaliere , M Cavallisforza , A Cerri , L Cerrito , Y C Chen , M Chertok , G Chiarelli , G Chlachidze , F Chlebana , K Cho , D Chokheli , J P Chou , W H Chung , Y S Chung , C I Ciobanu , M A Ciocci , A Clark , G Compostella , M E Convery , J Conway , M Corbo , M Cordelli , C A Cox , D J Cox , F Crescioli , C Cuenca Almenar , J Cuevas , R Culbertson , D Dagenhart , N D Ascenzo , M Datta , P De Barbaro , S De Cecco , G De Lorenzo , M Dell Orso , C Deluca , L Demortier , J Deng , M Deninno , F Devoto , M D Errico , A Di Canto , B Di Ruzza , J R Dittmann , M D Onofrio , S Donati , P Dong , M Dorigo , T Dorigo , K Ebina , A Elagin , A Eppig , R Erbacher , D Errede , S Errede , N Ershaidat , R Eusebi , H C Fang , S Farrington , M Feindt , J P Fernandez , C Ferrazza , R D Field , G Flanagan , R Forrest , M Frank , M Franklin , J Freeman , Y Funakoshi , I Furic , M Gallinaro , J Galyardt , J E Garcia , A F Garfinkel , P Garosi , H Gerberich , E Gerchtein , S Giagu , V Giakoumopoulou , P Giannetti , K Gibson , C M Ginsburg , N Giokaris , P Giromini , M Giunta , G Giurgiu , V Glagolev , D Glenzinski , M Gold , D Goldin , N Goldschmidt , A Golossanov , G Gomez , G Gomezceballos , M Goncharov , O Gonzalez , I Gorelov , A T Goshaw , K Goulianos , A Gresele , S Grinstein , C Grossopilcher , J Guimaraes Da Costa , Z Gunayunalan , C Haber , S R Hahn , E Halkiadakis , A Hamaguchi , J Y Han , F Happacher , K Hara , D Hare , M Hare , R F Harr , K Hatakeyama , C Hays , M Heck , J Heinrich , M Herndon , S Hewamanage , D Hidas , A Hocker , W Hopkins , D Horn , Shuai Hou , R E Hughes , M Hurwitz , U Husemann , N Hussain , M Hussein , J Huston , G Introzzi , M Iori , A Ivanov , E R James , D Jang , B Jayatilaka , E J Jeon , M K Jha , S Jindariani , W Johnson , M Jones , K K Joo , S Y Jun , T R Junk , T Kamon , P E Karchin , Yukio Kato , W Ketchum , J Keung , V Khotilovich , B Kilminster , D H Kim , H W Kim , Jeong Eun Kim , Mi Jin Kim , S H Kim , Y K Kim , N Kimura , M H Kirby , S Klimenko , K Kondo , D J Kong , J Konigsberg , A V Kotwal , M Kreps , J Kroll , D Krop , N Krumnack , M Kruse , V Krutelyov , T Kuhr , M Kurata , S Kwang , A T Laasanen , S Lami , S Lammel , M Lancaster , R Lander , K Lannon , A Lath , G Latino , I Lazzizzera , T Lecompte , E Lee , Hwa Soo Lee , J S Lee , S W Lee , S Leo , S Leone , J D Lewis , C J Lin , J Linacre , M Lindgren , E Lipeles , A Lister , D O Litvintsev , C Liu , Q Liu , Tianhua Liu , S Lockwitz , N S Lockyer , A Loginov , D Lucchesi , J Lueck , P Lujan , P Lukens , G Lungu , J Lys , R Lysak , R Madrak , K Maeshima , K Makhoul , P Maksimovic , S Malik , G Manca , A Manousakiskatsikakis , F Margaroli , C P Marino , M Martinez , R Martinezballarin , P Mastrandrea , M Mathis , M E Mattson , P Mazzanti , K S Mcfarland , P Mcintyre , R Mcnulty , Andrew Mehta , P Mehtala , A Menzione , C Mesropian , T Miao , D Mietlicki , A Mitra , Hiroyuki Miyake , S Moed , N Moggi , M N Mondragon , C S Moon , R Moore , M J Morello , J Morlock , P Movilla Fernandez , A Mukherjee , Th Muller , P Murat , M Mussini , J Nachtman , Yoshiyuki Nagai , J Naganoma , I Nakano , A Napier , J Nett , C Neu , M S Neubauer , J Nielsen , L Nodulman , O Norniella , E Nurse , L Oakes , S H Oh , Y D Oh , I Oksuzian , T Okusawa , R Orava , L Ortolan , S Pagan Griso , C Pagliarone , E Palencia , V Papadimitriou , A A Paramonov , J Patrick , G Pauletta , M Paulini , C Paus , D Pellett , A Penzo , T J Phillips , G Piacentino , E Pianori , J Pilot , K Pitts , C Plager , L Pondrom , K Potamianos , O Poukhov , F Prokoshin , A Pronko , F Ptohos , E Pueschel , G Punzi , J Pursley , A Rahaman , V Ramakrishnan , N Ranjan , I Redondo , P Renton , M Rescigno , F Rimondi , L Ristori , A Robson , T Rodrigo , T Rodriguez , E Rogers , S Rolli , R Roser , M Rossi , F Rubbo , F Ruffini , A Ruiz , J Russ , V Rusu , A Safonov , W K Sakumoto , Yoshinori Sakurai , L Santi , L Sartori , K Sato , V Saveliev , A Savoynavarro , P Schlabach , Alexander Schmidt , E E Schmidt , M P Schmidt , M Schmitt , T Schwarz , L Scodellaro , A Scribano , F Scuri , A Sedov , S Seidel , Y Seiya , A Semenov , F Sforza , A Sfyrla , S Z Shalhout , T Shears , P F Shepard , M Shimojima , S Shiraishi , M Shochet , I Shreyber , A Simonenko , P Sinervo , A N Sissakian , K Sliwa , J R Smith , F D Snider , A Soha , S Somalwar , V Sorin , P Squillacioti , M Stancari , M Stanitzki , R St Denis , B Stelzer , O Stelzerchilton , D Stentz , J Strologas , G L Strycker , Y Sudo , A Sukhanov , I Suslov , K Takemasa , Y Takeuchi , Jia Tang , M Tecchio , P K Teng , J Thom , J Thome , G A Thompson , E Thomson , P Ttitoguzman , S Tkaczyk , D Toback , S Tokar , K Tollefson , T Tomura , D Tonelli , S Torre , D Torretta , P Totaro , M Trovato , Yanjun Tu , F Ukegawa , S Uozumi , A Varganov , F Vazquez , G Velev , C Vellidis , M Vidal , I Vila , R Vilar , J Vizan , M Vogel , G Volpi , P Wagner , R L Wagner , T Wakisaka , R Wallny , S M Wang , A Warburton , Deric W Waters , M Weinberger , W C Wester , B Whitehouse , D Whiteson , A B Wicklund , E Wicklund , S Wilbur , F Wick , H H Williams , J S Wilson , P Wilson , B L Winer , P Wittich , S Wolbers , H Wolfe , T Wright , Xin Wu , Zhen Wu , K Yamamoto , J Yamaoka , T Yang , U K Yang , Y C Yang , W M Yao , G P Yeh , K Yi , J Yoh , K Yorita , T Yoshida , G B Yu , I Yu , S S Yu , J C Yun , A Zanetti , Y Zeng , S Zucchelli PHYSICAL REVIEW D（2012）
摘要
A search is performed for heavy metastable particles that decay into jet pairs with a macroscopic lifetime (c tau similar to 1 cm) in p (p) over bar collisions at root s = 1.96 TeV using data from the CDF II detector at Fermilab corresponding to an integrated luminosity of 3.2 fb(-1). To estimate the standard model background, a data-driven approach is used. Probability-density functions are constructed to model secondary vertices from known processes. No statistically significant excess is observed above the background. Limits on the production cross section in a hidden valley benchmark phenomenology are set for various Higgs boson masses as well as metastable particle masses and lifetimes.
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field experiment, elementary particles
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