CERN Accelerating science

CERN Document Server 162 записей найдено  1 - 10следующийконец  перейти к записи: Поиск длился 0.72 секунд. 
1.
Is there anomalous isospin breaking in the $\pi$N$rightarrow\pi$N S-wave? / Laurikainen, P ; Törnqvist, N A
The authors perform a phase-shift analysis of pi N to pi N within T /sub lab/=(300-600) MeV tolerating breakings of the order of 10% to find out if the present data allows for isospin breaking effects and to see in which partial waves they occur. (12 refs)..
CERN-TH-1594.- 1973 - Published in : Nuovo Cimento, Lett.: 7 ser.2 (1973) , no. 7, pp. 237-44 Fulltext: PDF;
2.
A physics computing bureau / Laurikainen, P
The author first reviews the services offered by the Bureau to the user community scattered over three separate physics departments and a theory research institute. Limited services are offered also to non- physics research in the University, in collaboration with the University Computing Center. [...]
1975
In : Annual Conference of the Finnish Physical Society, Oulu, Finland, 14 - 15 Feb 1975, pp.14
3.
Least squares fit of bubble chamber tracks taking into account multiple scattering / Laurikainen, P ; Moorhead, W G
Presents a new approach to the problem of taking into account multiple scattering when making the least squares fit of bubble chamber tracks to film measurements. For completeness, the more refined version of the standard fit which has been developed for the new large hydrogen bubble chambers, is also described. [...]
1972 - Published in : Nucl. Instrum. Methods 98 (1972) 349-359
4.
Study of the reaction pp→ $\varrho$ $\lambda$ N at 19 GeV/c / Bøggild, H (Niels Bohr Institute) ; Eades, John (Helsinki U.) ; Hansen, K (Helsinki U.) ; Johnstad, H (Helsinki U.) ; Møllerud, R (Helsinki U.) ; Veje, L (Helsinki U.) ; Korkea-Aho, M K (Helsinki U.) ; Laurikainen, P (Helsinki U.) ; Raitio, R O (Helsinki U.) ; Jacobsen, T (Helsinki U.) et al.
1970 - Published in : Nucl. Phys. B 20 (1970) 441-450
5.
Observation of a $\Delta^{++}$ ($\approx$ 1900) resonance decaying into $\Delta^{++}$ (1236) $\pi^{-} \pi^{+}$ / Bøggild, H (Niels Bohr Institute) ; Hansen, K (Helsinki U.) ; Johnstad, H (Helsinki U.) ; Møllerud, R (Helsinki U.) ; Veje, L (Helsinki U.) ; Korkea-Aho, M K (Helsinki U.) ; Laurikainen, P (Helsinki U.) ; Raitio, R O (Helsinki U.) ; Jacobsen, T (Helsinki U.) ; Sørensen, S O (Institute of Physics, University of Oslo, Norway) et al.
1970 - Published in : Nucl. Phys. B 16 (1970) 503-507
6.
Evidence for dominance of Pomeron like exchange in pp → NN $\pi$ at 19 GeV/c / Bøggild, H (Niels Bohr Inst. Copenhagen) ; Hansen, K (Helsinki U.) ; Johnstad, H (Helsinki U.) ; Møllerud, R (Helsinki U.) ; Suk, M (Helsinki U.) ; Veje, L (Helsinki U.) ; Korkea-Aho, M K (Helsinki U.) ; Laurikainen, K V (Helsinki U.) ; Laurikainen, P (Helsinki U.) ; Bakken, V (Helsinki U.) et al.
1969 - Published in : Phys. Lett. B 30 (1969) 369-372
7.
Photon structure functions and azimuthal correlations of lepton pairs in tagged $\gamma\gamma$ collisions / L3 Collaboration
Measurements of the QED structure of the photon based on the reaction ee to ee gamma /sup (*)/(P/sup 2/) gamma *(Q/sup 2/) to ee mu mu are discussed. This review is an update of the discussion of the results on the QED structure of the photon and covers the published measurements of the photon structure functions F/sub 2//sup gamma /, F/sub A//sup gamma / and F/sub B//sup gamma / and of the differential cross-section d sigma /dx for the exchange of two virtual photons. [...]
CERN-EP-98-060; CERN-L3-147.- Geneva : CERN, 1998 - Published in : Phys. Lett. B 438 (1998) 363 Fulltext: PDF; - Please contact the library if you need to access this document.
8.
Search for extra dimensions in boson and fermion pair production in $e^{+}e^{-}$ interactions at LEP / L3 Collaboration
Extra spatial dimensions are proposed by recent theories that postulate the scale of gravity to be of the same order as the electroweak scale. A sizeable interaction between gravitons and Standard Model particles is then predicted. [...]
hep-ex/9910056; CERN-EP-99-146; CERN-EP-99-146; CERN-L3-193.- Geneva : CERN, 1999 - 12 p. - Published in : Phys. Lett. B 470 (1999) 281-288 Fulltext: arXiv:hep-ex_9910056 - PDF; ep-99-146 - PDF; External link: Preprint - Please contact the library if you need to access this document.
9.
Search for neutral higgs bosons of the minimal supersymmetric standard model in $e^{+}e^{-}$ Interactions at $\sqrt{s}= 189$ GeV / L3 Collaboration
A search for the lightest neutral scalar and neutral pseudoscalar Higgs bosons in the Minimal Supersymmetric Standard Model is performed using 176.4 pb$^{-1}$ of integrated luminosity collected by L3 at a center-of-mass energy of 189 GeV. No signal is observed, and the data are consistent with the expected Standard Model background. [...]
hep-ex/9910053; CERN-EP-99-145; CERN-EP-99-145; CERN-L3-192.- Geneva : CERN, 1999 - 19 p. - Published in : Phys. Lett. B 471 (1999) 321-331 Fulltext: ep-99-145 - PDF; arXiv:hep-ex_9910053 - PDF; - Please contact the library if you need to access this document.
10.
Search for Excited Leptons at $\sqrt{s}$= 189 GeV / L3 Collaboration
A search for excited leptons, $\rm e^*,~\mu^*, ~\tau^*, ~\nu_e^*, ~\nu_{\mu}^*$ and $\nu_{\tau}^*$, was performed with the L3 detector at LEP using data collected at a centre--of--mass energy of 189 GeV, corresponding to an integrated luminosity of $\rm 176~pb^{-1}$. No evidence of their production is observed. [...]
hep-ex/9910021; CERN-EP-99-138; CERN-EP-99-138; CERN-L3-191.- Geneva : CERN, 2000 - 14 p. - Published in : Phys. Lett. B 473 (2000) 177-185 Fulltext: ep-99-138 - PDF; arXiv:hep-ex_9910021 - PDF; External link: Preprint - Please contact the library if you need to access this document.

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