Date

Measurement of Total Cross-Sections of Hadron Photoproduction in C, Cu and Pb Nuclei at E(gamma) = 12-GeV to 30-GeV

Arakelian, E.A. ; Bayatian, G.L. ; Vartanian, G.S. ; et al.
Phys.Lett.B 79 (1978) 143-146, 1978.
Inspire Record 122947 DOI 10.17182/hepdata.27424

The total cross section of hadron photoproduction on C, Cu and Pb nuclei is measured for six energy values in the range 12–30 GeV. The obtained cross-section values for C and Cu nuclei have a weak energy dependence at high energies (above 20 GeV). The cross section for the Pb nucleus is somewhat higher in comparison with that expected, and energy dependence is not observed. The A -dependence of the effective number of hadrons agrees with VDM predictions.

2 data tables match query

No description provided.

A-EFFECTIVE/A = SIG(GAMMA A)/(Z*SIG(GAMMA P) + (A-Z)*SIG(GAMMA N)) WHERE SIG(GAMMA P) = (98.7 +- 3.6) + (65 +- 10)/SQRT(P) MUB, SIG(GAMMA N) = SIG(GAMMA P) - (18.3 +- 6.1)/SQRT(P) MUB AND A IS 12, 64 AND 207 FOR THESE NUCLEI.


TOTAL CROSS-SECTION OF HADRON PHOTOPRODUCTION ON Be, C, H2O AND Al NUCLEI IN THE ENERGY RANGE E (gamma) = 200-MeV TO 900-MeV

Arakelian, E.A. ; Bayatian, G.L. ; Grigorian, N.K. ; et al.
EFI-730-45-84-YEREVAN, 1984.
Inspire Record 206946 DOI 10.17182/hepdata.2700

None

2 data tables match query

No description provided.

No description provided.


TOTAL CROSS-SECTION OF pi0 MESON PHOTOPRODUCTION ON Be, C, O AND Al NUCLEI IN THE ENERGY RANGE E (gamma) = 180-MeV TO 650-MeV WITHOUT CHARGED PARTICLES IN FINAL STATE

Arakelian, E.A. ; Bayatian, G.L. ; Grigorian, N.K. ; et al.
EFI-729-44-84-YEREVAN, 1984.
Inspire Record 208564 DOI 10.17182/hepdata.2929

None

2 data tables match query

No description provided.

No description provided.


HADRONIC PHOTOABSORPTION AND THE COHERENT PHOTOPRODUCTION OF PI0 MESONS ON BE AND C NUCLEI IN THE RESONANCE ENERGY REGION. (IN RUSSIAN)

Ananikian, A.K. ; Arakelian, E.A. ; Bayatian, G.L. ; et al.
Yad.Fiz. 46 (1987) 401-403, 1987.
Inspire Record 255687 DOI 10.17182/hepdata.17423

None

2 data tables match query

No description provided.

No description provided.


TOTAL CROSS-SECTION OF PI0 MESON AND HADRON PHOTOPRODUCTION ON Be, C, O, AND Al NUCLEI IN THE ENERGY RANGE E (GAMMA) = 200-MEV - 900-MEV. (IN RUSSIAN)

Arakelian, E.A. ; Bayatian, G.L. ; Vartanian, G.S. ; et al.
Yad.Fiz. 42 (1985) 3-7, 1985.
Inspire Record 227726 DOI 10.17182/hepdata.17616

None

3 data tables match query

No description provided.

No description provided.

No description provided.


MEASUREMENT OF TOTAL pi0 PHOTOPRODUCTION CROSS-SECTION ON THE NUCLEI Be-9, C-12, O-16 IN THE ENERGY RANGE E (gamma) = 0.25-GeV - 1-GeV WITHOUT CHARGED PARTICLES IN FINAL STATE

Arakelian, E.A. ; Bayatian, G.L. ; Grigorian, N.K. ; et al.
Sov.J.Nucl.Phys. 38 (1983) 886, 1983.
Inspire Record 184638 DOI 10.17182/hepdata.17672

None

2 data tables match query

Axis error includes +- 0.0/0.0 contribution (?////NOT GIVEN).

Axis error includes +- 0.0/0.0 contribution (?////NOT GIVEN).


Measurement of Total Hadronic Photoproduction Cross-section in $^{9}$Be, $^{12}$C, $^{16}$O, $^{64}$Cu Nuclei in the Photon Energy Range $e \gamma$ = (0.25-{GeV} - 2.7-{GeV})

Arakelian, E.A. ; Bayatian, G.L. ; Grigorian, N.K. ; et al.
Sov.J.Nucl.Phys. 38 (1983) 589, 1983.
Inspire Record 184631 DOI 10.17182/hepdata.17736

None

1 data table match query

No description provided.


Measurement of the Cross-section of Photofission and Electrofission of $^{235}$U and $^{238}$U in the Energy Range 1.33-{GeV} to 4.32-{GeV}

Arakelian, E.A. ; Bayatian, H.L. ; Grigorian, N.K. ; et al.
Sov.J.Nucl.Phys. 49 (1989) 780, 1989.
Inspire Record 271539 DOI 10.17182/hepdata.47251

None

1 data table match query

No description provided.


Measurements of multijet event isotropies using optimal transport with the ATLAS detector

The ATLAS collaboration Aad, Georges ; Abbott, Braden Keim ; Abbott, Dale ; et al.
JHEP 10 (2023) 060, 2023.
Inspire Record 2663035 DOI 10.17182/hepdata.110164

A measurement of novel event shapes quantifying the isotropy of collider events is performed in 140 fb$^{-1}$ of proton-proton collisions with $\sqrt s=13$ TeV centre-of-mass energy recorded with the ATLAS detector at CERN's Large Hadron Collider. These event shapes are defined as the Wasserstein distance between collider events and isotropic reference geometries. This distance is evaluated by solving optimal transport problems, using the 'Energy-Mover's Distance'. Isotropic references with cylindrical and circular symmetries are studied, to probe the symmetries of interest at hadron colliders. The novel event-shape observables defined in this way are infrared- and collinear-safe, have improved dynamic range and have greater sensitivity to isotropic radiation patterns than other event shapes. The measured event-shape variables are corrected for detector effects, and presented in inclusive bins of jet multiplicity and the scalar sum of the two leading jets' transverse momenta. The measured distributions are provided as inputs to future Monte Carlo tuning campaigns and other studies probing fundamental properties of QCD and the production of hadronic final states up to the TeV-scale.

75 data tables match query

IRing2 for HT2>=500 GeV, NJets>=2

IRing2 for HT2>=500 GeV, NJets>=3

IRing2 for HT2>=500 GeV, NJets>=4

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A simultaneous unbinned differential cross section measurement of twenty-four $Z$+jets kinematic observables with the ATLAS detector

The ATLAS collaboration Aad, Georges ; Aakvaag, Erlend ; Abbott, Braden Keim ; et al.
Phys.Rev.Lett. 133 (2024) 261803, 2024.
Inspire Record 2791852 DOI 10.17182/hepdata.153189

$Z$ boson events at the Large Hadron Collider can be selected with high purity and are sensitive to a diverse range of QCD phenomena. As a result, these events are often used to probe the nature of the strong force, improve Monte Carlo event generators, and search for deviations from Standard Model predictions. All previous measurements of $Z$ boson production characterize the event properties using a small number of observables and present the results as differential cross sections in predetermined bins. In this analysis, a machine learning method called OmniFold is used to produce a simultaneous measurement of twenty-four $Z$+jets observables using $139$ fb$^{-1}$ of proton-proton collisions at $\sqrt{s}=13$ TeV collected with the ATLAS detector. Unlike any previous fiducial differential cross-section measurement, this result is presented unbinned as a dataset of particle-level events, allowing for flexible re-use in a variety of contexts and for new observables to be constructed from the twenty-four measured observables.

26 data tables match query

Differential cross-section in bins of dimuon $p_\text{T}$. The actual measurement is unbinned and available with examples at <a href="https://gitlab.cern.ch/atlas-physics/public/sm-z-jets-omnifold-2024">gitlab.cern.ch/atlas-physics/public/sm-z-jets-omnifold-2024</a>

Differential cross-section in bins of dimuon rapidity. The actual measurement is unbinned and available with examples at <a href="https://gitlab.cern.ch/atlas-physics/public/sm-z-jets-omnifold-2024">gitlab.cern.ch/atlas-physics/public/sm-z-jets-omnifold-2024</a>

Differential cross-section in bins of leading muon $p_\mathrm{T]$. The actual measurement is unbinned and available with examples at <a href="https://gitlab.cern.ch/atlas-physics/public/sm-z-jets-omnifold-2024">gitlab.cern.ch/atlas-physics/public/sm-z-jets-omnifold-2024</a>

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