Observation of exclusive electron-positron production in hadron-hadron collisions.
نویسندگان
- A Abulencia
- J Adelman
- T Affolder
- T Akimoto
- M G Albrow
- D Ambrose
- S Amerio
- D Amidei
- A Anastassov
- K Anikeev
- A Annovi
- J Antos
- M Aoki
- G Apollinari
- J-F Arguin
- T Arisawa
- A Artikov
- W Ashmanskas
- A Attal
- F Azfar
- P Azzi-Bacchetta
- P Azzurri
- N Bacchetta
- W Badgett
- A Barbaro-Galtieri
- V E Barnes
- B A Barnett
- S Baroiant
- V Bartsch
- G Bauer
- F Bedeschi
- S Behari
- S Belforte
- G Bellettini
- J Bellinger
- A Belloni
- D Benjamin
- A Beretvas
- J Beringer
- T Berry
- A Bhatti
- M Binkley
- D Bisello
- R E Blair
- C Blocker
- B Blumenfeld
- A Bocci
- A Bodek
- V Boisvert
- G Bolla
- A Bolshov
- D Bortoletto
- J Boudreau
- A Boveia
- B Brau
- L Brigliadori
- C Bromberg
- E Brubaker
- J Budagov
- H S Budd
- S Budd
- S Budroni
- K Burkett
- G Busetto
- P Bussey
- K L Byrum
- S Cabrera
- M Campanelli
- M Campbell
- F Canelli
- A Canepa
- S Carillo
- D Carlsmith
- B Caron
- R Carosi
- M Casarsa
- A Castro
- P Catastini
- D Cauz
- M Cavalli-Sforza
- A Cerri
- L Cerrito
- S H Chang
- Y C Chen
- M Chertok
- G Chiarelli
- G Chlachidze
- F Chlebana
- I Cho
- K Cho
- D Chokheli
- J P Chou
- G Choudalakis
- S H Chuang
- K Chung
- W H Chung
- Y S Chung
- M Ciljak
- C I Ciobanu
- M A Ciocci
- A Clark
- D Clark
- M Coca
- G Compostella
- M E Convery
- J Conway
- B Cooper
- K Copic
- M Cordelli
- G Cortiana
- F Crescioli
- C Cuenca Almenar
- J Cuevas
- R Culbertson
- J C Cully
- D Cyr
- S Daronco
- S D'Auria
- T Davies
- M D'Onofrio
- D Dagenhart
- P de Barbaro
- S De Cecco
- A Deisher
- G De Lentdecker
- M Dell'orso
- F Delli Paoli
- L Demortier
- J Deng
- M Deninno
- D De Pedis
- P F Derwent
- G P Di Giovanni
- C Dionisi
- B Di Ruzza
- J R Dittmann
- P Dituro
- C Dörr
- S Donati
- M Donega
- P Dong
- J Donini
- T Dorigo
- S Dube
- J Efron
- R Erbacher
- D Errede
- S Errede
- R Eusebi
- H C Fang
- S Farrington
- I Fedorko
- W T Fedorko
- R G Feild
- M Feindt
- J P Fernandez
- R Field
- G Flanagan
- A Foland
- S Forrester
- G W Foster
- M Franklin
- J C Freeman
- I Furic
- M Gallinaro
- J Galyardt
- J E Garcia
- F Garberson
- A F Garfinkel
- C Gay
- H Gerberich
- D Gerdes
- S Giagu
- P Giannetti
- A Gibson
- K Gibson
- J L Gimmell
- C Ginsburg
- N Giokaris
- M Giordani
- P Giromini
- M Giunta
- G Giurgiu
- V Glagolev
- D Glenzinski
- M Gold
- N Goldschmidt
- J Goldstein
- G Gomez
- G Gomez-Ceballos
- M Goncharov
- O González
- I Gorelov
- A T Goshaw
- K Goulianos
- A Gresele
- M Griffiths
- S Grinstein
- C Grosso-Pilcher
- U Grundler
- J Guimaraes da Costa
- Z Gunay-Unalan
- C Haber
- K Hahn
- S R Hahn
- E Halkiadakis
- A Hamilton
- B-Y Han
- J Y Han
- R Handler
- F Happacher
- K Hara
- M Hare
- S Harper
- R F Harr
- R M Harris
- M Hartz
- K Hatakeyama
- J Hauser
- A Heijboer
- B Heinemann
- J Heinrich
- C Henderson
- M Herndon
- J Heuser
- D Hidas
- C S Hill
- D Hirschbuehl
- A Hocker
- A Holloway
- S Hou
- M Houlden
- S-C Hsu
- B T Huffman
- R E Hughes
- U Husemann
- J Huston
- J Incandela
- G Introzzi
- M Iori
- Y Ishizawa
- A Ivanov
- B Iyutin
- E James
- D Jang
- B Jayatilaka
- D Jeans
- H Jensen
- E J Jeon
- S Jindariani
- M Jones
- K K Joo
- S Y Jun
- J E Jung
- T R Junk
- T Kamon
- P E Karchin
- Y Kato
- Y Kemp
- R Kephart
- U Kerzel
- V Khotilovich
- B Kilminster
- D H Kim
- H S Kim
- J E Kim
- M J Kim
- S B Kim
- S H Kim
- Y K Kim
- N Kimura
- L Kirsch
- S Klimenko
- M Klute
- B Knuteson
- B R Ko
- K Kondo
- D J Kong
- J Konigsberg
- A Korytov
- A V Kotwal
- A Kovalev
- A C Kraan
- J Kraus
- I Kravchenko
- M Kreps
- J Kroll
- N Krumnack
- M Kruse
- V Krutelyov
- T Kubo
- S E Kuhlmann
- T Kuhr
- Y Kusakabe
- S Kwang
- A T Laasanen
- S Lai
- S Lami
- S Lammel
- M Lancaster
- R L Lander
- K Lannon
- A Lath
- G Latino
- I Lazzizzera
- T Lecompte
- J Lee
- Y J Lee
- S W Lee
- R Lefèvre
- N Leonardo
- S Leone
- S Levy
- J D Lewis
- C Lin
- C S Lin
- M Lindgren
- E Lipeles
- A Lister
- D O Litvintsev
- T Liu
- N S Lockyer
- A Loginov
- M Loreti
- P Loverre
- R-S Lu
- D Lucchesi
- P Lujan
- P Lukens
- G Lungu
- L Lyons
- J Lys
- R Lysak
- E Lytken
- P Mack
- D Macqueen
- R Madrak
- K Maeshima
- K Makhoul
- T Maki
- P Maksimovic
- S Malde
- G Manca
- F Margaroli
- R Marginean
- C Marino
- C P Marino
- A Martin
- M Martin
- V Martin
- M Martínez
- T Maruyama
- P Mastrandrea
- T Masubuchi
- H Matsunaga
- M E Mattson
- R Mazini
- P Mazzanti
- K S McFarland
- P McIntyre
- R McNulty
- A Mehta
- P Mehtala
- S Menzemer
- A Menzione
- P Merkel
- C Mesropian
- A Messina
- T Miao
- N Miladinovic
- J Miles
- R Miller
- C Mills
- M Milnik
- A Mitra
- G Mitselmakher
- A Miyamoto
- S Moed
- N Moggi
- B Mohr
- R Moore
- M Morello
- P Movilla Fernandez
- J Mülmenstädt
- A Mukherjee
- Th Muller
- R Mumford
- P Murat
- J Nachtman
- A Nagano
- J Naganoma
- I Nakano
- A Napier
- V Necula
- C Neu
- M S Neubauer
- J Nielsen
- T Nigmanov
- L Nodulman
- O Norniella
- E Nurse
- S H Oh
- Y D Oh
- I Oksuzian
- T Okusawa
- R Oldeman
- R Orava
- K Osterberg
- C Pagliarone
- E Palencia
- V Papadimitriou
- A A Paramonov
- B Parks
- S Pashapour
- J Patrick
- G Pauletta
- M Paulini
- C Paus
- D E Pellett
- A Penzo
- T J Phillips
- G Piacentino
- J Piedra
- L Pinera
- J Pinfold
- K Pitts
- C Plager
- L Pondrom
- X Portell
- O Poukhov
- N Pounder
- F Prakoshyn
- A Pronko
- J Proudfoot
- F Ptohos
- G Punzi
- J Pursley
- J Rademacker
- A Rahaman
- N Ranjan
- S Rappoccio
- B Reisert
- V Rekovic
- P Renton
- M Rescigno
- S Richter
- F Rimondi
- L Ristori
- A Robson
- T Rodrigo
- E Rogers
- S Rolli
- R Roser
- M Rossi
- R Rossin
- A Ruiz
- J Russ
- V Rusu
- H Saarikko
- S Sabik
- A Safonov
- W K Sakumoto
- G Salamanna
- O Saltó
- D Saltzberg
- C Sánchez
- L Santi
- S Sarkar
- L Sartori
- K Sato
- P Savard
- A Savoy-Navarro
- T Scheidle
- P Schlabach
- E E Schmidt
- M P Schmidt
- M Schmitt
- T Schwarz
- L Scodellaro
- A L Scott
- A Scribano
- F Scuri
- A Sedov
- S Seidel
- Y Seiya
- A Semenov
- L Sexton-Kennedy
- A Sfyrla
- M D Shapiro
- T Shears
- P F Shepard
- D Sherman
- M Shimojima
- M Shochet
- Y Shon
- I Shreyber
- A Sidoti
- P Sinervo
- A Sisakyan
- J Sjolin
چکیده
We present the first observation of exclusive e(+)e(-) production in hadron-hadron collisions, using pp[over] collision data at (square root) s = 1.96 TeV taken by the run II Collider Detector at Fermilab, and corresponding to an integrated luminosity of 532 pb(-1). We require the absence of any particle signatures in the detector except for an electron and a positron candidate, each with transverse energy E(T) > 5 GeV and pseudorapidity |eta| < 2. With these criteria, 16 events are observed compared to a background expectation of 1.9+/-0.3 events. These events are consistent in cross section and properties with the QED process pp[over] --> p + e(+)e(-) + p[over] through two-photon exchange. The measured cross section is 1.6(-0.3)(+0.5)(stat) +/- 0.3(syst) pb. This agrees with the theoretical prediction of 1.71+/-0.01 pb.
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ورودعنوان ژورنال:
- Physical review letters
دوره 98 11 شماره
صفحات -
تاریخ انتشار 2007