CERN Accelerating science

Αρχική Σελίδα > Αποτελέσματα αναζήτησης: recid:909084
Παραδείγματα αναζήτησης
Σύνθετη Αναζήτηση
Add to Search +
Αναζήτηση συλλογές:
Ταξινόμηση με: Παρουσίαση αποτελεσμάτων: Μορφή αποτελεσμάτων:
CERN Document Server 2,044 εγγραφές βρέθηκαν  1 - 10επόμενοτέλος  μετάβαση στην εγγραφή: Η έρευνα πήρε 1.08 δευτερόλεπτα. 
1.
(100)
Search for pentaquark states in Z decays / ALEPH Collaboration
Exotic hadrons made of five quarks (pentaquarks) are searched for in hadronic Z decays collected by the ALEPH detector at LEP. No significant signal is observed. [...]
2004 - Published in : Phys. Lett. B 599 (2004) 1-16
Αναλυτική εγγραφή - Παρόμοιες εγγραφές
2.
(91)
First observation of the production and decay of the $\Sigma_{c}^{+}$ / BEBC TST Neutrino Collaboration
An event with the decay chain Sigma /sub c//sup +/ to Lambda /sub c //sup +/+ pi /sup 0/, Lambda /sub c//sup +/ to K/sup -/+p+ pi /sup +/, has been observed in an exposure of BEBC, equipped with a track sensitive target, to the wide band neutrino beam from the SPS at CERN. The event has a unique three constraint kinematic fit to the Delta S=- Delta Q reaction nu +p to mu /sup -/+p+K/sup -/+ pi /sup +/+ pi /sup + /+ pi /sup 0/ with both gammas from the pi /sup 0/ decay detected. [...]
RL-80-019.- Chilton : RAL, 1980 - Published in : Phys. Lett. B 93 (1980) 521-4
Αναλυτική εγγραφή - Παρόμοιες εγγραφές
3.
(77)
CMS detector and its potential for B-physics / Kinnunen, Ritva /CMS Collaboration
Main features of the CMS detector relevant for B-physics studies are described. A detailed simulation study of the channel B/sub s//sup 0/ to mu /sup +/ mu /sup -/ is presented. [...]
1999 - Published in : Nucl. Phys. B, Proc. Suppl. 75 (1999) 327-33
Αναλυτική εγγραφή - Παρόμοιες εγγραφές
4.
(76)
A large yield threshold Cerenkov counter / Carlson, P J ; Kiesler, R
A 4 m long atmospheric pressure Cerenkov counter is described. The constant N/sub 0/ in the yield formula n/sub e/=N/sub 0/L sin/sup 2/ theta /sub c/ takes the value 260+or-15 cm/sup -1/. [...]
1979 - Published in : Nucl. Instrum. Methods 161 (1979) 421-5
Αναλυτική εγγραφή - Παρόμοιες εγγραφές
5.
(76)
Studies of identified hadrons in qq events at LEP I, in $W^{+}W^{-}$ and $\overline{q}q$ events at LEP II and search for stable and long-lived heavy charged particles / Neufeld, N (CERN)
The use of RICH detectors allows the identification of charged pions, kaons and protons, covering the full momentum range 0.7<or=p<or=E/sub beam//c. The pi /sup +or-/, K/sup +or-/ and p(p) normalised production rates, their differential cross-sections, multiplicities and the xi /sub p/ distributions are measured for three event samples, i.e. [...]
1999 - Published in : Nucl. Instrum. Methods Phys. Res., A 433 (1999) 338-42
Αναλυτική εγγραφή - Παρόμοιες εγγραφές
6.
(73)
Further investigation of the ${\gamma}$-transitions in $^{4}_{\Lambda}$H and $^{4}_{\Lambda}$He hypernuclei / CERN-Lyons-Warsaw Collaboration
The gamma -spectra induced by stopped K/sup -/ mesons in /sup 6/Li and /sup 7/Li targets were obtained in coincidence with the accompanying charged pions and pi /sup 0/ mesons. The gamma -line at (1.04+or-0.04) MeV observed with charged pions was identified as a gamma -transition in /sub Lambda //sup 4/H, whereas the gamma -line at (1.15+or-0.04) Me V observed with pi /sup 0/ mesons was ascribed to a gamma -transition in /sub Lambda //sup 4/He. [...]
CERN-EP-79-08.- Geneva : CERN, 1979 - 11 p. - Published in : Phys. Lett. B 83 (1979) 252-256 Fulltext: PDF; - CERN library copies
Αναλυτική εγγραφή - Παρόμοιες εγγραφές
7.
(69)
Charm counting in b and c events at LEP / Elsing, M (CERN)
In this article the current status of the partial width R/sub c//sup 0/ of the Z/sup 0/ to cc and of the multiplicity n/sub c/ of charm quarks per b decay are discussed. Final results presented by the LEP experiments using their full LEP 1 data sets lead to a more precise determination of both quantities. [...]
Geneva : CERN, 2000 - 3 p. Fulltext: PDF;
In : International Europhysics Conference on High-Energy Physics, Tampere, Finland, 15 - 21 Jul 1999, pp.594-596
Αναλυτική εγγραφή - Παρόμοιες εγγραφές
8.
(69)
A study of the semi-leptonic decays of K/sup +/ mesons / Braun, H ; Bertrand, D ; Cornelssen, M ; Csejthey-Barth, Monique ; Cundy, Donald C ; Erriquez, O ; Lemonne, J ; Martyn, H U ; Natali, S ; Pedersen, T I et al.
The form factors of the semi-leptonic decays K/sup +/ to pi /sup 0/e /sup +/ nu and K/sup +/ to pi /sup 0/ mu /sup +/ nu have been investigated using a sample of events detected in the CERN 1.1 m/sup 3 / heavy liquid bubble chamber. Analyses have been carried out using methods independent of any assumption of the q/sup 2/ dependence of the form factors in addition to the usual linear parametrizations. [...]
1975 - Published in : Nucl. Phys. B 89 (1975) 210-52
Αναλυτική εγγραφή - Παρόμοιες εγγραφές
9.
(69)
Diffractive production of the charmed baryon LAMBDA$_{c}^{+}$ at the CERN ISR / Giboni, K L ; DiBitonto, Daryl ; Barone, M ; Block, Martin M ; Böhm, A ; Campanini, R ; Ceradini, F ; Eickmeyer, J ; Hanna, D S ; Irion, J et al.
In a sample of diffractive events of high multiplicity a sharp five standard deviation signal is observed at M=2255 MeV/c/sup 2/ in the K /sup -/p pi /sup +/ mass distribution and, although with less statistical strength, at the same mass in the lambda /sup 0/ pi /sup + / pi /sup +/ pi /sup -/ channel. These signals are identified as being due to the decay of the charmed baryon Lambda /sub c//sup +/ which is produced with a cross section times branching ratio sigma /sub C/B in the range 0.7-1.8 mu b for the K/sup -/ pi /sup +/p decay and 0.3-0.7 mu b for the Lambda /sup 0/ pi /sup +/ pi /sup +/ pi /sup -/ system. [...]
CERN-EP-79-66.- Geneva : CERN, 1979 - 15 p. - Published in : Phys. Lett. B 85 (1979) 437-442 Fulltext: PDF; - CERN library copies
Αναλυτική εγγραφή - Παρόμοιες εγγραφές
10.
(68)
LHCb performance on $B_{s}^{0} \to h^{+}h^{-}$ measurements / Carbone, A ; Vagnoni, V
The selection of B/sup 0/ to pi /sup +/ pi /sup -/, B/sup 0/ to K/sup +/ pi /sup -/, B/sub s//sup 0/ to K/sup +/K/sup -/ and B/sub s//sup 0 / to pi /sup +/K/sup -/ decays at LHCb is presented, and the estimated annual signal yields and background-to-signal ratios for specific and combinatorial backgrounds are quoted. The combined measurement of the B/sup 0/ to pi /sup +/ pi /sup -/ and B/sub s//sup 0/ to K/sup +/K/sup -/ CP asymmetries provides a promising strategy to determine the gamma angle of the unitarity triangle. [...]
2004 - Published in : Czechoslov. J. Phys. 54 suppl . (2004) A373-80
In : Advanced Studies Institute on Physics at LHC, Prague, Czech Republic, 6 - 12 Jul 2003, pp.A373-80
Αναλυτική εγγραφή - Παρόμοιες εγγραφές

Δεν βρήκατε αυτό που αναζητούσατε; Δοκιμάστε την έρευνά σας σε άλλους servers:
recid:909084 σε Amazon
recid:909084 σε CERN EDMS
recid:909084 σε CERN Intranet
recid:909084 σε CiteSeer
recid:909084 σε Google Books
recid:909084 σε Google Scholar
recid:909084 σε Google Web
recid:909084 σε IEC		recid:909084 σε IHS
recid:909084 σε INSPIRE
recid:909084 σε ISO
recid:909084 σε KISS Books/Journals
recid:909084 σε KISS Preprints
recid:909084 σε NEBIS
recid:909084 σε SLAC Library Catalog