Alakhverdyants, A.V.
Muon production
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J/psi Production in sqrt (s_NN)= 200 GeV Cu+Cu Collisions

The PHENIX collaboration Adare, A. ; Afanasiev, S. ; Aidala, Christine Angela ; et al.
Phys.Rev.Lett. 101 (2008) 122301, 2008.
Inspire Record 776624 DOI 10.17182/hepdata.57327

Yields for J/psi production in Cu+Cu collisions at sqrt (s_NN)= 200 GeV have been measured by the PHENIX experiment over the rapidity range |y| < 2.2 at transverse momenta from 0 to beyond 5 GeV/c. The invariant yield is obtained as a function of rapidity, transverse momentum and collision centrality, and compared with results in p+p and Au+Au collisions at the same energy. The Cu+Cu data provide greatly improved precision over existing Au+Au data for J/psi production in collisions with small to intermediate numbers of participants, providing a key constraint that is needed for disentangling cold and hot nuclear matter effects.

27 data tables
Table 1

J/PSI yield versus transverse momentum PT, at mid rapidity : -0.35<y<0.35, for a centrality range of 0-20%.

Table 1

J/psi-->e+e- invariant yield in Cu+Cu collisions as a function of p_T at mid-rapidity for the 0-20 centrality range. The statistical and systematic uncertainties vary point-to-point and are listed for each measured value. An additional global systematic uncertainty is provided in each column heading, which applies to all data points per column.

Table 2

J/PSI yield versus transverse momentum PT, at mid rapidity : -0.35<y<0.35, for a centrality range of 20-40%.

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The Study of Two-particle Correlations in Inelastic Interactions of Neon-22 Nuclei With Emulsion at 4.1-{GeV}/$c^-$per-nucleon

The Alma Ata-Bucharest-Leningrad-Dubna-Dushanbe-Yerevan-Kosice-Cracow - Leningrad-Moscow-Tashkent-Tbilisi-Ulan Bator-Zernograd collaboration Krasnov, S.A. ; Tolstov, K.D. ; Shabratova, G.S. ; et al.
Sov.J.Nucl.Phys. 47 (1988) 834-840, 1988.
Inspire Record 250785 DOI 10.17182/hepdata.9500

None

20 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Measurement of the W -> lnu and Z/gamma* -> ll production cross sections in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector

The ATLAS collaboration Aad, G. ; Abbott, B. ; Abdallah, J. ; et al.
JHEP 12 (2010) 060, 2010.
Inspire Record 872570 DOI 10.17182/hepdata.56744

First measurements of the W -> lnu and Z/gamma* -> ll (l = e, mu) production cross sections in proton-proton collisions at sqrt(s) = 7 TeV are presented using data recorded by the ATLAS experiment at the LHC. The results are based on 2250 W -> lnu and 179 Z/gamma* -> ll candidate events selected from a data set corresponding to an integrated luminosity of approximately 320 nb-1. The measured total W and Z/gamma*-boson production cross sections times the respective leptonic branching ratios for the combined electron and muon channels are $\stotW$ * BR(W -> lnu) = 9.96 +- 0.23(stat) +- 0.50(syst) +- 1.10(lumi) nb and $\stotZg$ * BR(Z/gamma* -> ll) = 0.82 +- 0.06(stat) +- 0.05(syst) +- 0.09(lumi) nb (within the invariant mass window 66 < m_ll < 116 GeV). The W/Z cross-section ratio is measured to be 11.7 +- 0.9(stat) +- 0.4(syst). In addition, measurements of the W+ and W- production cross sections and of the lepton charge asymmetry are reported. Theoretical predictions based on NNLO QCD calculations are found to agree with the measurements.

35 data tables
Table 1

Measured fiducial cross section times leptonic branching ratio for W+ production in the W+ -> e+ nu final state.

Table 2

Measured fiducial cross section times leptonic branching ratio for W- production in the W- -> e- nubar final state.

Table 3

Measured fiducial cross section times leptonic branching ratio for W+/- production in the combined W+ -> e+ nu and W- -> e- nubar final state.

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Diffractional excitation of Be nucleus by 40-GeV/c pions accompanied by proton emissions into backward hemisphere

Antipov, Yu.M. ; Batarin, V.A. ; Bezzubov, V.A. ; et al.
Phys.Atom.Nucl. 56 (1993) 1241-1250, 1993.
Inspire Record 355325 DOI 10.17182/hepdata.17230

None

2 data tables
Table 1

CHARGED PARTICLES HAVE LARGE ESCAPE ANGLE. DIFRACTIVE SCATTERED PION.

Table 2

CHARGED PARTICLES HAVE LARGE ESCAPE ANGLE. DIFRACTIVE SCATTERED PION.


Inclusive $\pi^0$ and Eta0 Production in $\pi^- p$ Interactions at 360-{GeV}/$c$

The NA27 & LEBC-EHS collaborations Aguilar-Benitez, M. ; Bailly, J.L. ; Baland, J.F. ; et al.
Z.Phys.C 34 (1987) 419, 1987.
Inspire Record 234876 DOI 10.17182/hepdata.15777

Theπ0 andη0 production is studied inπ−p interactions at 360 GeV/c. The cross section forπ0 production in the forward hemisphere (X>0) isσ(π0)=(49.7 ± 1.0 ± 1.1) mb and for η withX>0.1,Nch>2,σ(η0)=(3.1 ± 0.5) mb. The ratio of theπ0 toη0 cross section forX>0.1,Nch>2 isσ(π0)/σ(η0). Results on FeynmanX andpT distributions are presented. The data were obtained using the European Hybrid Spectrometer EHS and the bubble chamber LEBC at CERN.

6 data tables
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AZIMUTHAL ASYMMETRY OF NEGATIVELY CHARGED HADRONS IN THE REACTION ANTI-NEUTRINO N ---> MU+ H- X

Ammosov, V.V. ; Asratian, A.E. ; Berge, J.P. ; et al.
JETP Lett. 38 (1983) 248-251, 1983.
Inspire Record 202188 DOI 10.17182/hepdata.69924

None

2 data tables
Table 1

No description provided.

Table 2

No description provided.


STUDY OF CHARMED STRANGE VECTOR MESON PRODUCTION BY ANTI-NEUTRINOS

Asratian, A.E. ; Fedotov, A.V. ; Gorichev, P.A. ; et al.
Moscow Inst. Theor. Exp. Phys. Gkae - ITEF-84-099 (84,REC.AUG.) 7p, 1984.
Inspire Record 210786 DOI 10.17182/hepdata.40174

None

1 data table
Table 1

ERROR DUE TO ERROR IN BRANCHING VALUE IS 0.008.


Low-mass vector-meson production at forward rapidity in $p+p$ collisions at $\sqrt{s}=200$ GeV

The PHENIX collaboration Adare, A. ; Aidala, C. ; Ajitanand, N.N. ; et al.
Phys.Rev.D 90 (2014) 052002, 2014.
Inspire Record 1296835 DOI 10.17182/hepdata.64159

The PHENIX experiment at the Relativistic Heavy Ion Collider has measured low mass vector meson, $\omega$, $\rho$, and $\phi$, production through the dimuon decay channel at forward rapidity ($1.2<|y|<2.2$) in $p$$+$$p$ collisions at $\sqrt{s}=200$ GeV. The differential cross sections for these mesons are measured as a function of both $p_T$ and rapidity. We also report the integrated differential cross sections over $1<p_T<7$ GeV/$c$ and $1.2<|y|<2.2$: $d\sigma/dy(\omega+\rho\rightarrow\mu\mu) = 80 \pm 6 \mbox{(stat)} \pm 12 \mbox{(syst)}$ nb and $d\sigma/dy(\phi\rightarrow\mu\mu) = 27 \pm 3 \mbox{(stat)} \pm 4 \mbox{(syst)}$ nb. These results are compared with midrapidity measurements and calculations.

3 data tables
Table 1

Differential cross sections of (OMEGA + RHO) and PHI as functions of PT. The statistical uncertainty includes the type-A systematic uncertainty. The systematic uncertainty is the type-B systematic uncertainty.

Table 2

Differential cross sections of (OMEGA + RHO) and PHI as functions of rapidity. The statistical uncertainty includes the type-A systematic uncertainty. The systematic uncertainty is the type-B systematic uncertainty.

Table 3

N(PHI) / ( N(OMEGA) + N(RHO) ) as a function of PT. The statistical uncertainty includes the type-A systematic uncertainty. The systematic uncertainty is the type-B systematic uncertainty.


STUDY OF INCLUSIVE CHARACTERISTICS OF rho0 AND K*0 (890) MESONS IN ANTI-NEUTRINO CHARGED CURRENT INDUCED QUARK JET

Ammosov, V.V. ; Burtovoy, V.S. ; Gapienko, V.A. ; et al.
Sov.J.Nucl.Phys. 45 (1987) 833, 1987.
Inspire Record 234597 DOI 10.17182/hepdata.40836

None

8 data tables
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