HEPData Search

The high mass μ + μ − pairs produced by 280 GeV μ + on a carbon target are studied in a search for the Y production. The high mass continuum in the region 2–18 GeV is interpreted in terms of QED pair production and of μ pairs originating from the decay of hidden and open charm particles as well as of hadrons ( π , K) from deep inelastic interactions. The upper limit for the upsilon production by muons is found to be, at the 90% confidence level, σ γ ·(γ→μ + μ − )<13·10 −39 cm 2 /nucleon.

8 data tables

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PROTON INCLUSIVE SPECTRA IN pi- C-12 INTERACTIONS AT 5-GeV/c

Bairamov, A.A. ; Budagov, Yu.A. ; Valkar, S. ; et al.

Yad.Fiz. 35 (1982) 1627-1629, 1982.

Inspire Record 168381 DOI 10.17182/hepdata.39117

None

1 data table

Table 1

No description provided.

INCLUSIVE PRODUCTION OF MESONS IN n p INTERACTIONS AT 3.83-GeV/c

Abdivaliev, A. ; Besliu, K. ; Gasparian, A.P. ; et al.

JINR-P1-81-437, 1981.

Inspire Record 167522 DOI 10.17182/hepdata.39060

None

7 data tables

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Double Charge Exchange Reactions of Negative Pions on Nuclei With Strange Change

Biryukov, Yu.A. ; Gornov, M.G. ; Drutskoi, A.G. ; et al.

Sov.J.Nucl.Phys. 32 (1980) 358, 1980.

Inspire Record 152649 DOI 10.17182/hepdata.17932

None

9 data tables

Table 1

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MAIN CHARACTERISTICS OF REACTIONS P P ---> P P PI+ PI- PI0 AND P P ---> P N PI+ PI+ PI- AT 4-GEV/. (IN RUSSIAN)

Beketov, G.V. ; Vanyushin, I.A. ; Ergakov, V.A. ; et al.

Yad.Fiz. 32 (1980) 1319-1328, 1980.

Inspire Record 159802 DOI 10.17182/hepdata.18033

None

25 data tables

Table 1

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Inclusive Muon Production in $e^+ e^-$ Annihilation with $\sqrt{s}$ = 7.3-GeV

Badtke, D.H. ; Barnett, B.A. ; Jones, L.H. ; et al.

Phys.Rev.Lett. 40 (1978) 827, 1978.

Inspire Record 134548 DOI 10.17182/hepdata.20890

We present results on charged multiplicity nch=2 and nch>2 muon events produced in e+e− collisions with 〈s12〉=7.3 GeV at 90° to the beams. The background-subtracted inclusive cross section for the nch=2 events is 10.2±5.4 pb/sr, in agreement with the expected contribution from the heavy lepton τ. The cross section for the nch>2 events is 19.0±6.5 pb/sr whereas we expect only 2.9 pb/sr from the τ, indicating that we may be seeing the weak decays of charmed mesons.

2 data tables

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Observables Reset

CM Energies (GeV)

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Characteristics of the Secondary Neutrons in $\pi^- p$, $\pi^- n$ and $\pi^- ^{12}$C Interactions at $P=40$-{GeV}/$c$

OBSERVATION OF TWO PROTON CORRELATIONS IN P NE INTERACTIONS AT 300-GEV/C

Muon Pairs and Upper Limit for $\Upsilon$ Production by 280-{GeV} Muons

PROTON INCLUSIVE SPECTRA IN pi- C-12 INTERACTIONS AT 5-GeV/c

INCLUSIVE PRODUCTION OF MESONS IN n p INTERACTIONS AT 3.83-GeV/c

Double Charge Exchange Reactions of Negative Pions on Nuclei With Strange Change

MAIN CHARACTERISTICS OF REACTIONS P P ---> P P PI+ PI- PI0 AND P P ---> P N PI+ PI+ PI- AT 4-GEV/. (IN RUSSIAN)

Inclusive Muon Production in $e^+ e^-$ Annihilation with $\sqrt{s}$ = 7.3-GeV