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CERN Document Server 137 záznamov nájdených  1 - 10ďalšíkoniec  skoč na záznam: Hľadanie trvalo 0.65 sekúnd. 
1.
A measurement of the inclusive $b \to s \gamma$ branching ratio / ALEPH Collaboration
FSU-SCRI-98-78.- Tallahassee, FL : Florida State Univ., 1998 - Published in : Phys. Lett. B 429 (1998) 169-187
Úplný záznam - Podobné záznamy
2.
Measurement of the fraction of hadronic Z decays into charm quark pairs / ALEPH Collaboration
CERN-EP-98-035.- Geneva : CERN, 1998 - 23 p. ALEPH Papers - Published in : Eur. Phys. J. C 4 (1998) 557-570 Fulltext: PDF; - CERN library copies
Úplný záznam - Podobné záznamy
3.
A measurement of the inclusive $b \rightarrow s \gamma$ branching ratio / ALEPH Collaboration
The flavour changing neutral current decay b -> s gamma has been detected in hadronic Z decays collected by ALEPH at LEP. The signal is isolated in lifetime-tagged b-bbar events by the presence of a hard photon associated with a system of high momentum and high rapidity hadrons. [...]
CERN-EP-98-044.- Geneva : CERN, 1998 - 16 p. ALEPH Papers - Published in : Phys. Lett. B 429 (1998) 169-187 Fulltext: PDF; - CERN library copies
Úplný záznam - Podobné záznamy
4.
Determination of $A^{b}_{FB}$ using Jet Charge Measurements in Z Decays / ALEPH Collaboration
An improved measurement of the forward-backward asymmetry in Z-> b b-bar decays is presented, based on a sample of 4.1 million hadronic Z decays collected by Aleph between 1991 and 1995. Data are a nalysed as a function of polar angle of the event axis and b purity. [...]
CERN-EP-98-038; FSU-SCRI-98-77.- Tallahassee, FL : Florida State Univ., 1998 - 13 p. ALEPH Papers - Published in : Phys. Lett. B 426 (1998) 217-230 Fulltext: PDF; - CERN library copies
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5.
Observation of doubly-charmed B decays at LEP / ALEPH Collaboration
A search for doubly-charmed B decays with both charmed mesons reconstructed is performed, using about 3.8 million hadronic Z decays recorded with the ALEPH detector at LEP. A clear signal is observed in the channels ${\mathrm B\rightarrow D_s \bar D}(X)$ and ${\mathrm B\rightarrow D \bar D}(X)$ (where D can be either a D$^0$, a D$^+$ or a D$^{*+}$), providing the first direct evidence for doubly-charmed B decays involving no ${\mathrm D_s}$ production. [...]
CERN-EP-98-037.- Geneva : CERN, 1998 - 34 p. ALEPH Papers - Published in : Eur. Phys. J. C 4 (1998) 387-407 Fulltext: PDF; - CERN library copies
Úplný záznam - Podobné záznamy
6.
Search for evidence of compositeness at LEP I / ALEPH Collaboration
Extensive searches for evidence of compositeness of quarks and leptons have been made using the full set of ALEPH data from LEP running at the Z peak. They include searches for radiative and weak decays of excited leptons, and radiative and gluonic decays of excited quarks, produced either singly or in pairs. [...]
CERN-EP-98-022.- Geneva : CERN, 1998 - 36 p. ALEPH Papers - Published in : Eur. Phys. J. C 4 (1998) 571-590 Fulltext: PDF;
In : 28th International Conference on High-energy Physics, Warsaw, Poland, 25 - 31 Jul 1996, pp.PA13-028 - CERN library copies
Úplný záznam - Podobné záznamy
7.
$K^{0}_{S}$ production in $\tau$ decays / ALEPH Collaboration
From a sample of about 160k $\mbox{Z}\!\!\to\!\!\tau^+\tau^-$ candidates collected with the ALEPH detector at LEP between 1991 and 1995, $\tau$ lepton decays involving $K^0_S\!\to\!\pi^+\pi^-$ are studied. The $K^0_SK^0_L$ associated production in $\tau$ decays is also investigated. [...]
CERN-PPE-97-167; FSU-SCRI-98-84.- Tallahassee, FL : Florida State Univ., 1998 - 28 p. ALEPH Papers - Published in : Eur. Phys. J. C 4 (1998) 29-45 Fulltext: PDF; - CERN library copies
Úplný záznam - Podobné záznamy
8.
Measurement of triple gauge-boson couplings at 172 GeV / ALEPH Collaboration
The triple gauge-boson couplings, Awp, Aw and Abp, have been measured using 34 semileptonically and 54 hadronically decaying WW candidate events. The events were selected in the data recorded during 1996 with the ALEPH detector at 172 GeV, corresponding to an integrated luminosity of 10.65 pb^-1. [...]
CERN-PPE-97-166.- Geneva : CERN, 1998 - 20 p. ALEPH Papers - Published in : Phys. Lett. B 422 (1998) 369 Fulltext: PDF;
Úplný záznam - Podobné záznamy
9.
Measurement of the W mass by direct reconstruction in $e^+ e^-$ collisions at 172 GeV / ALEPH Collaboration
The mass of the W boson is obtained from reconstructed invariant mass distributions in W-pair events. The sample of W pairs is selected from 10.65~pb$^{-1}$ collected with the ALEPH detector at a mean centre-of-mass energy of 172.09 \GEV. [...]
CERN-PPE-97-164.- Geneva : CERN, 1998 - 17 p. ALEPH Papers - Published in : Phys. Lett. B 422 (1998) 384 Fulltext: PDF; - CERN library copies
Úplný záznam - Podobné záznamy
10.
Resonant structure and flavour tagging in the $B\pi^{\pm}$ system using fully reconstructed $B$ decays / ALEPH Collaboration
Starting from a sample of four million hadronic $Z$ decays collected with the ALEPH detector at LEP, 404 charged and neutral $B$ mesons are fully reconstructed and used to look for resonant structure in the $B\pi$ system. An excess of events is observed above the expected background in the $B\pi$ mass spectrum at a mass $\approx 5.7$ GeV/c$^2$, consistent with the production and decay to $B^{(*)}\pi$ of the $B^{**}$ states predicted by Heavy Quark Symmetry (HQS). [...]
CERN-EP-98-017; FSU-SCRI-98-76.- Tallahassee, FL : Florida State Univ., 1998 - 13 p. ALEPH Papers - Published in : Phys. Lett. B 425 (1998) 215 Fulltext: PDF;
In : 28th International Conference on High-energy Physics, Warsaw, Poland, 25 - 31 Jul 1996, pp.PA01-070 - CERN library copies
Úplný záznam - Podobné záznamy

CERN Document Server : 137 záznamov nájdených   1 - 10ďalšíkoniec  skoč na záznam:
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