CERN Accelerating science

CERN Document Server 57 εγγραφές βρέθηκαν  1 - 10επόμενοτέλος  μετάβαση στην εγγραφή: Η έρευνα πήρε 0.72 δευτερόλεπτα. 
1.
Search for Darkonium in $e^+e^-$ Collisions / BABAR Collaboration
Collider searches for dark sectors, new particles interacting only feebly with ordinary matter, have largely focused on identifying signatures of new mediators, leaving much of dark sector structures unexplored. In particular, the existence of dark matter bound states (darkonia) remains to be investigated. [...]
arXiv:2106.08529; BABAR-PUB-21/002; SLAC-PUB-17608.- 2022-01-11 - 10 p. - Published in : Phys. Rev. Lett. 128 (2022) 021802 Fulltext: PDF;
2. CMS - The Compact Muon Solenoid / Christoforou, Kinstitute et al.
Approved: 31 January 1996.-
Status: Data Taking
Fulltext: CMS - JPG; CMS_b - JPG; External link: Experiment home page
Experiment: CMS
3.
Test of N.bar.N potential models : isospin relations in p.bar.d annihilations at rest and the search for quasinuclear bound states / Abele, A ; Adomeit, J ; Amsler, Claude ; Baker, C A ; Barnett, B M ; Batty, C J ; Benayoun, M ; Bischoff, S ; Blüm, H P ; Braune, K et al.
We have determined branching ratios for antiproton annihilations at rest on protons or neutrons in liquid deuterium which we compare to frequencies of isospin-related processes in antiproton-proton annihilations. Using the annihilation rates into pi /sup 0/ pi /sup 0 / and pi /sup -/ pi /sup 0/ where the annihilation took place on the proton or neutron, respectively, we discuss the fraction of S-wave and P-wave annihilation in liquid D/sub 2/. [...]
Geneva : CERN, 2000 - Published in : Eur. Phys. J. C 17 (2000) 583-92 Fulltext: PDF;
4.
Study of $f_{0}$ decays into four neutral pions / Crystal Barrel Collaboration
A simultaneous analysis of two different 5 pi final states from pN annihilation at rest is used to study the decays of isoscalar 0/sup ++/ states into 4 pi /sup 0/. The data demand two scalar states, the f/sub 0/(1370) with m=1395+or-40 MeV/c/sup 2/, Gamma =275+or-55 MeV/c /sup 2/ and the f/sub 0/(1500) with mass and width compatible with previous findings. [...]
Geneva : CERN, 2001 - Published in : Eur. Phys. J. C 19 (2001) 667-75 Fulltext: PDF;
5.
Die Beobachtung einer isovectoriellen 0++ - Resonanz mit einer Masse von 1470 MeV/$c^{2}$ im $\pi 0 \pi 0 \eta$-Endzustand der Proton-Antiproton-Vernichtung in Ruhe / Spanier, S M
Geneva : CERN, 1994 - mult..
6.
Status Of The Dirc Detector At Babar : Early Operational Experience / Adam, I ; Aleksan, Roy ; Aston, D ; Benkebil, M ; Bernard, D ; Bonneaud, G R ; Briand, H ; Brochard, F ; Brown, D N ; Chauveau, J et al.
SLAC-PUB-8345 ; LBNL-45511 ; LBL-45511.
- 2000. - 11 p.
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7.
$\bar{\rm p}{\rm p}$-annihilation into $\omega\pi^{0}$, $\omega\eta$ and $\omega\eta^{\prime}$ at 600, 1200 and 1940 MeV/$c$ / Crystal Barrel Collaboration
The annihilation channels p¯p→ωπ0,ωη,ωη′p¯p→ωπ0,ωη,ωη′ were studied with the Crystal Barrel detector at LEAR at p¯p¯-momenta of 600, 1200, and 1940 MeV/ cc. In most cases angular distributions were measured which allowed a complete JPJP-analysis using the helicity formalism. [...]
Geneva : CERN, 2000 - Published in : Eur. Phys. J. C 12 (2000) 429-439 Fulltext: PDF;
8.
Study of the $\pi^{0}\pi^{0}\eta '$ Final State In $\overline{p}p$ Annihilation at Rest / Crystal Barrel Collaboration
Geneva : CERN, 1997 - Published in : Phys. Lett. B 404 (1997) 179-186 Fulltext: PDF;
9.
First Year Operational Experience with the Cerenkov Detector (DIRC) of BaBar / Adam, I ; Aleksan, Roy ; Aston, D ; Benkebil, M ; Bernard, D ; Bonneaud, G R ; Brochard, F ; Brown, D N ; Chauveau, J ; Cohen-Tanugi, J et al.
SLAC-PUB-8418 ; LBNL-45509 ; LBL-45509.
- 2000.
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10.
The $\varrho$-mass, width and line-shape in $\overline{p}p$ annihilation at rest into $\pi^{+} \pi^{-}\pi^{0}$ / Abele, A ; Adomeit, J ; Amsler, Claude ; Anisovich, A V ; Baker, C A ; Barnett, B M ; Batty, C J ; Berdoz, A R ; Bischoff, S ; Blüm, H P et al.
Geneva : CERN, 1999 - Published in : Phys. Lett. B 469 (1999) 270-275

CERN Document Server : 57 εγγραφές βρέθηκαν   1 - 10επόμενοτέλος  μετάβαση στην εγγραφή:
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70 Spanier, S
25 Spanier, S.
5 Spanier, S.M.
1425 Spanier, Stefan
11 Spanier, Stefan M
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