Search for production of invisible final states in single-photon decays of Υ(1S).
نویسندگان
- P del Amo Sanchez
- J P Lees
- V Poireau
- E Prencipe
- V Tisserand
- J Garra Tico
- E Grauges
- M Martinelli
- D A Milanes
- A Palano
- M Pappagallo
- G Eigen
- B Stugu
- L Sun
- D N Brown
- M V Chistiakova
- F Jensen
- L T Kerth
- Yu G Kolomensky
- G Lynch
- I L Osipenkov
- H Koch
- T Schroeder
- D J Asgeirsson
- C Hearty
- T S Mattison
- J A McKenna
- A Khan
- A Randle-Conde
- V E Blinov
- A R Buzykaev
- V P Druzhinin
- V B Golubev
- E A Kravchenko
- A P Onuchin
- S I Serednyakov
- Yu I Skovpen
- E P Solodov
- K Yu Todyshev
- A N Yushkov
- M Bondioli
- S Curry
- D Kirkby
- A J Lankford
- M Mandelkern
- E C Martin
- D P Stoker
- H Atmacan
- J W Gary
- F Liu
- O Long
- G M Vitug
- C Campagnari
- T M Hong
- D Kovalskyi
- J D Richman
- C West
- A M Eisner
- C A Heusch
- J Kroseberg
- W S Lockman
- A J Martinez
- T Schalk
- B A Schumm
- A Seiden
- L O Winstrom
- C H Cheng
- D A Doll
- B Echenard
- D G Hitlin
- P Ongmongkolkul
- F C Porter
- A Y Rakitin
- R Andreassen
- M S Dubrovin
- G Mancinelli
- B T Meadows
- M D Sokoloff
- P C Bloom
- W T Ford
- A Gaz
- M Nagel
- U Nauenberg
- J G Smith
- S R Wagner
- R Ayad
- W H Toki
- H Jasper
- T M Karbach
- A Petzold
- B Spaan
- M J Kobel
- K R Schubert
- R Schwierz
- D Bernard
- M Verderi
- P J Clark
- S Playfer
- J E Watson
- M Andreotti
- D Bettoni
- C Bozzi
- R Calabrese
- A Cecchi
- G Cibinetto
- E Fioravanti
- P Franchini
- I Garzia
- E Luppi
- M Munerato
- M Negrini
- A Petrella
- L Piemontese
- R Baldini-Ferroli
- A Calcaterra
- R de Sangro
- G Finocchiaro
- M Nicolaci
- S Pacetti
- P Patteri
- I M Peruzzi
- M Piccolo
- M Rama
- A Zallo
- R Contri
- E Guido
- M Lo Vetere
- M R Monge
- S Passaggio
- C Patrignani
- E Robutti
- S Tosi
- B Bhuyan
- V Prasad
- C L Lee
- M Morii
- A Adametz
- J Marks
- U Uwer
- F U Bernlochner
- M Ebert
- H M Lacker
- T Lueck
- A Volk
- P D Dauncey
- M Tibbetts
- P K Behera
- U Mallik
- C Chen
- J Cochran
- H B Crawley
- L Dong
- W T Meyer
- S Prell
- E I Rosenberg
- A E Rubin
- A V Gritsan
- Z J Guo
- N Arnaud
- M Davier
- D Derkach
- J Firmino da Costa
- G Grosdidier
- F Le Diberder
- A M Lutz
- B Malaescu
- A Perez
- P Roudeau
- M H Schune
- J Serrano
- V Sordini
- A Stocchi
- L Wang
- G Wormser
- D J Lange
- D M Wright
- I Bingham
- C A Chavez
- J P Coleman
- J R Fry
- E Gabathuler
- R Gamet
- D E Hutchcroft
- D J Payne
- C Touramanis
- A J Bevan
- F Di Lodovico
- R Sacco
- M Sigamani
- G Cowan
- S Paramesvaran
- A C Wren
- C L Davis
- A G Denig
- M Fritsch
- W Gradl
- A Hafner
- K E Alwyn
- D Bailey
- R J Barlow
- G Jackson
- G D Lafferty
- J Anderson
- R Cenci
- A Jawahery
- D A Roberts
- G Simi
- J M Tuggle
- C Dallapiccola
- E Salvati
- R Cowan
- D Dujmic
- G Sciolla
- M Zhao
- D Lindemann
- P M Patel
- S H Robertson
- M Schram
- P Biassoni
- A Lazzaro
- V Lombardo
- F Palombo
- S Stracka
- L Cremaldi
- R Godang
- R Kroeger
- P Sonnek
- D J Summers
- X Nguyen
- M Simard
- P Taras
- G De Nardo
- D Monorchio
- G Onorato
- C Sciacca
- G Raven
- H L Snoek
- C P Jessop
- K J Knoepfel
- J M LoSecco
- W F Wang
- L A Corwin
- K Honscheid
- R Kass
- J P Morris
- N L Blount
- J Brau
- R Frey
- O Igonkina
- J A Kolb
- R Rahmat
- N B Sinev
- D Strom
- J Strube
- E Torrence
- G Castelli
- E Feltresi
- N Gagliardi
- M Margoni
- M Morandin
- M Posocco
- M Rotondo
- F Simonetto
- R Stroili
- E Ben-Haim
- G R Bonneaud
- H Briand
- G Calderini
- J Chauveau
- O Hamon
- Ph Leruste
- G Marchiori
- J Ocariz
- J Prendki
- S Sitt
- M Biasini
- E Manoni
- A Rossi
- C Angelini
- G Batignani
- S Bettarini
- M Carpinelli
- G Casarosa
- A Cervelli
- F Forti
- M A Giorgi
- A Lusiani
- N Neri
- E Paoloni
- G Rizzo
- J J Walsh
- D Lopes Pegna
- C Lu
- J Olsen
- A J S Smith
- A V Telnov
- F Anulli
- E Baracchini
- G Cavoto
- R Faccini
- F Ferrarotto
- F Ferroni
- M Gaspero
- L Li Gioi
- M A Mazzoni
- G Piredda
- F Renga
- T Hartmann
- T Leddig
- H Schröder
- R Waldi
- T Adye
- B Franek
- E O Olaiya
- F F Wilson
- S Emery
- G Hamel de Monchenault
- G Vasseur
- Ch Yèche
- M Zito
- M T Allen
- D Aston
- D J Bard
- R Bartoldus
- J F Benitez
- C Cartaro
- M R Convery
- J Dorfan
- G P Dubois-Felsmann
- W Dunwoodie
- R C Field
- M Franco Sevilla
- B G Fulsom
- A M Gabareen
- M T Graham
- P Grenier
- C Hast
- W R Innes
- M H Kelsey
- H Kim
- P Kim
- M L Kocian
- D W G S Leith
- S Li
- B Lindquist
- S Luitz
- V Luth
- H L Lynch
- D B MacFarlane
- H Marsiske
- D R Muller
- H Neal
- S Nelson
- C P O'Grady
- I Ofte
- M Perl
- T Pulliam
- B N Ratcliff
- A Roodman
- A A Salnikov
- V Santoro
- R H Schindler
- J Schwiening
- A Snyder
- D Su
- M K Sullivan
- S Sun
- K Suzuki
- J M Thompson
- J Va'vra
- A P Wagner
- M Weaver
- W J Wisniewski
- M Wittgen
- D H Wright
- H W Wulsin
- A K Yarritu
- C C Young
- V Ziegler
- X R Chen
- W Park
- M V Purohit
- R M White
- J R Wilson
- S J Sekula
- M Bellis
- P R Burchat
- A J Edwards
- T S Miyashita
- S Ahmed
- M S Alam
- J A Ernst
- B Pan
- M A Saeed
- S B Zain
- N Guttman
- A Soffer
- P Lund
- S M Spanier
- R Eckmann
- J L Ritchie
- A M Ruland
- C J Schilling
- R F Schwitters
- B C Wray
- J M Izen
- X C Lou
- F Bianchi
- D Gamba
- M Pelliccioni
- M Bomben
- L Lanceri
- L Vitale
- N Lopez-March
- F Martinez-Vidal
- A Oyanguren
- J Albert
- Sw Banerjee
- H H F Choi
- K Hamano
- G J King
- R Kowalewski
- M J Lewczuk
- C Lindsay
- I M Nugent
- J M Roney
- R J Sobie
- T J Gershon
- P F Harrison
- T E Latham
- E M T Puccio
- H R Band
- S Dasu
- K T Flood
- Y Pan
- R Prepost
- C O Vuosalo
- S L Wu
چکیده
We search for single-photon decays of the Υ(1S) resonance, Υ → γ + invisible, where the invisible state is either a particle of definite mass, such as a light Higgs boson A⁰, or a pair of dark matter particles, χχ. Both A⁰ and χ are assumed to have zero spin. We tag Υ(1S) decays with a dipion transition Υ(2S) → π⁺π⁻Υ(1S) and look for events with a single energetic photon and significant missing energy. We find no evidence for such processes in the mass range m(A⁰) ≤ 9.2 GeV and m(χ) ≤ 4.5 GeV in the sample of 98 × 10⁶ Υ(2S) decays collected with the BABAR detector and set stringent limits on new physics models that contain light dark matter states.
منابع مشابه
Production of the Η B (ns) States
The rates for magnetic dipole (M1) transitions Υ(nS) → ηb(n S) + γ, n ≤ n, are compared. The photon energies for allowed (n = n) M1 transitions are very small, so hindered (n < n) transitions could be more favorable for discovering the ηb(1S, 2S). The question then arises whether Υ(2S) or Υ(3S) is a better source of ηb(1S). Whereas one nonrelativistic model favors ηb(1S) production from Υ(2S), ...
متن کاملCLEO Results on Upsilons a
I present highlights of recent CLEO studies on the Υ(1S), Υ(2S), and Υ(3S). The preliminary results presented here include the first observation of a hadronic cascade in the Υ system not involving pions, Υ(3S) → γχ b1,2 (2P) followed by χ b1,2 (2P) → ωΥ(1S). I also present preliminary results on a search for inclusive ψ production in Υ(1S) decays. I end with a search for nine different two body...
متن کاملar X iv : h ep - p h / 01 04 25 3 v 5 2 3 O ct 2 00 1 Production of the η b ( nS ) states
The rates for magnetic dipole (M1) transitions Υ(nS) → ηb(n S) + γ, n ≤ n, are compared. The photon energies for allowed (n = n) M1 transitions are very small, so hindered (n < n) transitions could be more favorable for discovering the ηb(1S, 2S). The question then arises whether Υ(2S) or Υ(3S) is a better source of ηb(1S). Whereas one nonrelativistic model favors ηb(1S) production from Υ(2S), ...
متن کاملar X iv : h ep - p h / 01 04 25 3 v 2 2 6 A pr 2 00 1 Production of the η b ( nS ) states 1
The rates for magnetic dipole (M1) transitions Υ(nS) → ηb(n S) + γ, n ≤ n, are compared. The photon energies for allowed (n = n) M1 transitions are very small, so hindered (n < n) transitions could be more favorable for discovering the ηb(1S, 2S). The question then arises whether Υ(2S) or Υ(3S) is a better source of ηb(1S). Whereas one nonrelativistic model favors ηb(1S) production from Υ(2S), ...
متن کاملar X iv : h ep - p h / 01 04 25 3 v 1 2 4 A pr 2 00 1 Production of the η b ( nS ) states 1
The rates for magnetic dipole (M1) transitions Υ(nS) → ηb(n S) + γ, n ≤ n, are compared. The photon energies for allowed (n = n) M1 transitions are very small, so hindered (n < n) transitions could be more favorable for discovering the ηb(1S, 2S). The question then arises whether Υ(2S) or Υ(3S) is a better source of ηb(1S). Whereas one nonrelativistic model favors ηb(1S) production from Υ(2S), ...
متن کاملar X iv : h ep - p h / 01 04 25 3 v 3 2 5 M ay 2 00 1 Production of the η b ( nS ) states 1
The rates for magnetic dipole (M1) transitions Υ(nS) → ηb(n S) + γ, n ≤ n, are compared. The photon energies for allowed (n = n) M1 transitions are very small, so hindered (n < n) transitions could be more favorable for discovering the ηb(1S, 2S). The question then arises whether Υ(2S) or Υ(3S) is a better source of ηb(1S). Whereas one nonrelativistic model favors ηb(1S) production from Υ(2S), ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Physical review letters
دوره 107 2 شماره
صفحات -
تاریخ انتشار 2011