HEPData Search

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Inclusive $K^$0 (890) and $\bar{K}^$0 (890) Production on Beryllium by $K^-$ and $\pi^-$ at 175-{GeV}

The ACCMOR & Amsterdam-Bristol-CERN-Cracow-Munich-Rutherford collaborations Bailey, R. ; Bardsley, D.G. ; Belau, E. ; et al.

Z.Phys.C 24 (1984) 111, 1984.

Inspire Record 200772 DOI 10.17182/hepdata.16302

The reactions$K^ -Be \to {}^(\bar K^) *^0 (890)X,\pi ^ -Be \to {}^(\bar K^) *^0 (890)X$, have been studied in a 175 GeV unseparated hadron beam in the kinematic range 0<xF<1.0 andpT2<5 GeV2. Integrated cross-sections and the dependence of the cross-sections on the longitudinal and transverse momentum are presented, together with quark counting rules predictions. The nuclear dependence ofK− fragmentation intoK*0(890) with respect to Feynmanx is investigated from hydrogen to beryllium.

4 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Observation of $D^*$+- and ($\bar{D}$)0 / $D^\pm$ Production in High-energy $\pi^-$ Be Interactions at the {SPS}

The ACCMOR & Amsterdam-Bristol-CERN-Cracow-Munich-Rutherford collaborations Bailey, R. ; Bardsley, D.G. ; Becker, H. ; et al.

Phys.Lett.B 132 (1983) 230-236, 1983.

Inspire Record 190658 DOI 10.17182/hepdata.30633

An experiment has been performed to search for associated hadronic production of charmed mesons, using a large-aperture forward magnetic spectrometer setup in a π − beam at the CERN SPS. A prompt electron trigger was used to select events containing a pair by charmed particles. D mesons have been identified by reconstruction of hadronic decay modes such as Kπ, Kππ. Data have been taken at 120, 175, and 200 GeV, The D D cross section measured at 175 200 GeV is σ( D D ) = (48 ± 15) μ b with a systematic uncertainty of ±50%. The energy dependence of the cross section is measured to be σ( D D ) [120 GeV )/σ( D D [175/200 GeV ] = 0.62 ± 0.34 .

2 data tables

Table 1

No description provided.

Table 2

No description provided.

Inclusive $\phi$ Meson Production in $K^-$, $\bar{p}$ and $p$ Be Interactions at 100-{GeV}/$c$

The ACCMOR collaboration Daum, C. ; Hertzberger, L.O. ; Hoogland, W. ; et al.

Z.Phys.C 18 (1983) 1, 1983.

Inspire Record 183362 DOI 10.17182/hepdata.16360

Inclusive ϕ-meson production has been measured for 100 GeV/cK−,$\bar p$ andp incident on a Be target. Differential cross sectionsdσ/dxF anddσ/dp⊥2 are presented in the interval 0.075<xF<0.225 and 0<p⊥<1 GeV/c respectively. The shape of thedσ/dxF distributions agrees with predictions from a quark fusion model. Comparison with cross sections measured on a hydrogen target in the samexF andp⊥ range suggest a linearA-dependence fromA=1 toA=9.

1 data table

Table 1

No description provided.

Measurement of the production rates of eta and eta-prime in hadronic Z decays

The ALEPH collaboration Buskulic, D. ; Decamp, D. ; Goy, C. ; et al.

Phys.Lett.B 292 (1992) 210-220, 1992.

Inspire Record 334575 DOI 10.17182/hepdata.29156

The decays η → γγ and η ′ → ηπ + π − have been observed in hadronic decays of the Z produced at LEP. The fragmentation functions of both the η and η ′ have been measured. The measured multiplicities for x > 0.1 are 0.298±0.023±0.021 and 0.068±0.016 for η and η ′ respectively. While the fragmentation function for the η is fairly well described by the JETSET Monte Carlo, it is found that the production rate of the η ′ is a factor of four less than the corresponding prediction.

3 data tables

Table 1

No description provided.

Table 2

Additional 7 pct systematic error.

Table 3

Additional 23 pct systematic error.

Production of K0 and Lambda in hadronic Z decays

The ALEPH collaboration Buskulic, D. ; Casper, D. ; De Bonis, I. ; et al.

Z.Phys.C 64 (1994) 361-374, 1994.

Inspire Record 375060 DOI 10.17182/hepdata.48239

Measurements of the inclusive cross-sections forK0 and Λ production in hadronic decays of the Z are presented together with measurements of two-particle correlations within pairs of Λ andK0. The results are compared with predictions from the hadronization models Jetset, based on string fragmentation, and Herwig, based on cluster decays. TheK0 spectrum is found to be harder than predicted by both models, while the Λ spectrum is softer than predicted. The correlation measurements are all reproduced well by Jetset, while Herwig misses some of the qualitative features and overestimates the size of the$\Lambda \bar \Lambda $ correlation. Finally, the possibility of Bose-Einstein correlation in theKS0KS0 system is discussed.

7 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Production of charmed mesons in Z decays

The ALEPH collaboration Buskulic, D. ; De Bonis, I. ; Decamp, D. ; et al.

Z.Phys.C 62 (1994) 1-14, 1994.

Inspire Record 363280 DOI 10.17182/hepdata.48368

The production of charmed mesons$$\mathop {D^0 }\limits^{( - )} $$,D

4 data tables

Table 1

No description provided.

Table 2

The DSYS error is due to the error in the branching ratio.

Table 3

The DSYS error is due to the error in the branching ratio.

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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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Search for Quark Contact Interactions in Dijet Angular Distributions in pp Collisions at sqrt(s) = 7 TeV Measured with the ATLAS Detector

The ATLAS collaboration Aad, G. ; Abbott, B. ; Abdallah, J. ; et al.

Phys.Lett.B 694 (2011) 327-345, 2011.

Inspire Record 871487 DOI 10.17182/hepdata.57022

Dijet angular distributions from the first LHC pp collisions at center-of-mass energy sqrt(s) = 7 TeV have been measured with the ATLAS detector. The dataset used for this analysis represents an integrated luminosity of 3.1 pb-1. Dijet $\chi$ distributions and centrality ratios have been measured up to dijet masses of 2.8 TeV, and found to be in good agreement with Standard Model predictions. Analysis of the $\chi$ distributions excludes quark contact interactions with a compositeness scale $\Lambda$ below 3.4 TeV, at 95% confidence level, significantly exceeding previous limits.

5 data tables

Table 1

CHI distribution for mass bin 340 to 520 GeV.

Table 2

CHI distribution for mass bin 520 to 800 GeV.

Table 3

CHI distribution for mass bin 800 to 1200 GeV.

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Search for New Particles in Two-Jet Final States in 7 TeV Proton-Proton Collisions with the ATLAS Detector at the LHC

The ATLAS collaboration Aad, G. ; Abbott, B. ; Abdallah, J. ; et al.

Phys.Rev.Lett. 105 (2010) 161801, 2010.

Inspire Record 865423 DOI 10.17182/hepdata.57036

A search for new heavy particles manifested as resonances in two-jet final states is presented. The data were produced in 7 TeV proton-proton collisions by the Large Hadron Collider (LHC) and correspond to an integrated luminosity of 315 nb^-1 collected by the ATLAS detector. No resonances were observed. Upper limits were set on the product of cross section and signal acceptance for excited-quark (q*) production as a function of q* mass. These exclude at the 95% CL the q* mass interval 0.30 < mq* < 1.26 TeV, extending the reach of previous experiments.

2 data tables

Table 1

The dijet mass distribution (NUMBER OF EVENTS).

Table 2

95 PCT CL upper limit of the cross section x acceptance.

Charged-hadron production in $pp$, $p$+Pb, Pb+Pb, and Xe+Xe collisions at $\sqrt{s_{_\text{NN}}}=5$ TeV with the ATLAS detector at the LHC

The ATLAS collaboration Aad, Georges ; Abbott, Braden Keim ; Abeling, Kira ; et al.

JHEP 07 (2023) 074, 2023.

Inspire Record 2601282 DOI 10.17182/hepdata.135676

This paper presents measurements of charged-hadron spectra obtained in $pp$, $p$+Pb, and Pb+Pb collisions at $\sqrt{s}$ or $\sqrt{s_{_\text{NN}}}=5.02$ TeV, and in Xe+Xe collisions at $\sqrt{s_{_\text{NN}}}=5.44$ TeV. The data recorded by the ATLAS detector at the LHC have total integrated luminosities of 25 pb${}^{-1}$, 28 nb${}^{-1}$, 0.50 nb${}^{-1}$, and 3 $\mu$b${}^{-1}$, respectively. The nuclear modification factors $R_{p\text{Pb}}$ and $R_\text{AA}$ are obtained by comparing the spectra in heavy-ion and $pp$ collisions in a wide range of charged-particle transverse momenta and pseudorapidity. The nuclear modification factor $R_{p\text{Pb}}$ shows a moderate enhancement above unity with a maximum at $p_{\mathrm{T}} \approx 3$ GeV; the enhancement is stronger in the Pb-going direction. The nuclear modification factors in both Pb+Pb and Xe+Xe collisions feature a significant, centrality-dependent suppression. They show a similar distinct $p_{\mathrm{T}}$-dependence with a local maximum at $p_{\mathrm{T}} \approx 2$ GeV and a local minimum at $p_{\mathrm{T}} \approx 7$ GeV. This dependence is more distinguishable in more central collisions. No significant $|\eta|$-dependence is found. A comprehensive comparison with several theoretical predictions is also provided. They typically describe $R_\text{AA}$ better in central collisions and in the $p_{\mathrm{T}}$ range from about 10 to 100 GeV.

140 data tables

Overview

- - - - - - - - - - - - - - - - - - - - charged-hadron spectra: pp reference:   <a href="?version=1&table=Table1">for p+Pb</a>   <a href="?version=1&table=Table10">for Pb+Pb</a>   <a href="?version=1&table=Table19">for Xe+Xe</a>   p+Pb:   <a href="?version=1&table=Table2">0-5%</a>   <a href="?version=1&table=Table3">5-10%</a>   <a href="?version=1&table=Table4">10-20%</a>   <a href="?version=1&table=Table5">20-30%</a>   <a href="?version=1&table=Table6">30-40%</a>   <a href="?version=1&table=Table7">40-60%</a>   <a href="?version=1&table=Table8">60-90%</a>   <a href="?version=1&table=Table9">0-90%</a>   Pb+Pb:   <a href="?version=1&table=Table11">0-5%</a>   <a href="?version=1&table=Table12">5-10%</a>   <a href="?version=1&table=Table13">10-20%</a>   <a href="?version=1&table=Table14">20-30%</a>   <a href="?version=1&table=Table15">30-40%</a>   <a href="?version=1&table=Table16">40-50%</a>   <a href="?version=1&table=Table17">50-60%</a>   <a href="?version=1&table=Table18">60-80%</a>   Xe+Xe:   <a href="?version=1&table=Table20">0-5%</a>   <a href="?version=1&table=Table21">5-10%</a>   <a href="?version=1&table=Table22">10-20%</a>   <a href="?version=1&table=Table23">20-30%</a>   <a href="?version=1&table=Table24">30-40%</a>   <a href="?version=1&table=Table25">40-50%</a>   <a href="?version=1&table=Table26">50-60%</a>   <a href="?version=1&table=Table27">60-80%</a>   - - - - - - - - - - - - - - - - - - - - nuclear modification factors (pT): RpPb:   <a href="?version=1&table=Table28">0-5%</a>   <a href="?version=1&table=Table29">5-10%</a>   <a href="?version=1&table=Table30">10-20%</a>   <a href="?version=1&table=Table31">20-30%</a>   <a href="?version=1&table=Table32">30-40%</a>   <a href="?version=1&table=Table33">40-60%</a>   <a href="?version=1&table=Table34">60-90%</a>   <a href="?version=1&table=Table35">0-90%</a>   RAA (Pb+Pb):   <a href="?version=1&table=Table36">0-5%</a>   <a href="?version=1&table=Table37">5-10%</a>   <a href="?version=1&table=Table38">10-20%</a>   <a href="?version=1&table=Table39">20-30%</a>   <a href="?version=1&table=Table40">30-40%</a>   <a href="?version=1&table=Table41">40-50%</a>   <a href="?version=1&table=Table42">50-60%</a>   <a href="?version=1&table=Table43">60-80%</a>   RAA (Xe+Xe):   <a href="?version=1&table=Table44">0-5%</a>   <a href="?version=1&table=Table45">5-10%</a>   <a href="?version=1&table=Table46">10-20%</a>   <a href="?version=1&table=Table47">20-30%</a>   <a href="?version=1&table=Table48">30-40%</a>   <a href="?version=1&table=Table49">40-50%</a>   <a href="?version=1&table=Table50">50-60%</a>   <a href="?version=1&table=Table51">60-80%</a>   - - - - - - - - - - - - - - - - - - - - nuclear modification factors (y*/eta): RpPb:   0-5%:   <a href="?version=1&table=Table52">0.66-0.755GeV</a>   <a href="?version=1&table=Table53">2.95-3.35GeV</a>   <a href="?version=1&table=Table54">7.65-8.8GeV</a>   <a href="?version=1&table=Table55">15.1-17.3GeV</a>     5-10%:   <a href="?version=1&table=Table56">0.66-0.755GeV</a>   <a href="?version=1&table=Table57">2.95-3.35GeV</a>   <a href="?version=1&table=Table58">7.65-8.8GeV</a>   <a href="?version=1&table=Table59">15.1-17.3GeV</a>     10-20%:   <a href="?version=1&table=Table60">0.66-0.755GeV</a>   <a href="?version=1&table=Table61">2.95-3.35GeV</a>   <a href="?version=1&table=Table62">7.65-8.8GeV</a>   <a href="?version=1&table=Table63">15.1-17.3GeV</a>     20-30%:   <a href="?version=1&table=Table64">0.66-0.755GeV</a>   <a href="?version=1&table=Table65">2.95-3.35GeV</a>   <a href="?version=1&table=Table66">7.65-8.8GeV</a>   <a href="?version=1&table=Table67">15.1-17.3GeV</a>     30-40%:   <a href="?version=1&table=Table68">0.66-0.755GeV</a>   <a href="?version=1&table=Table69">2.95-3.35GeV</a>   <a href="?version=1&table=Table70">7.65-8.8GeV</a>   <a href="?version=1&table=Table71">15.1-17.3GeV</a>     40-60%:   <a href="?version=1&table=Table72">0.66-0.755GeV</a>   <a href="?version=1&table=Table73">2.95-3.35GeV</a>   <a href="?version=1&table=Table74">7.65-8.8GeV</a>   <a href="?version=1&table=Table75">15.1-17.3GeV</a>     60-90%:   <a href="?version=1&table=Table76">0.66-0.755GeV</a>   <a href="?version=1&table=Table77">2.95-3.35GeV</a>   <a href="?version=1&table=Table78">7.65-8.8GeV</a>   <a href="?version=1&table=Table79">15.1-17.3GeV</a>     0-90%:   <a href="?version=1&table=Table80">0.66-0.755GeV</a>   <a href="?version=1&table=Table81">2.95-3.35GeV</a>   <a href="?version=1&table=Table82">7.65-8.8GeV</a>   <a href="?version=1&table=Table83">15.1-17.3GeV</a>   RAA (Pb+Pb):   0-5%:   <a href="?version=1&table=Table84">1.7-1.95GeV</a>   <a href="?version=1&table=Table85">6.7-7.65GeV</a>   <a href="?version=1&table=Table86">20-23GeV</a>   <a href="?version=1&table=Table87">60-95GeV</a>     5-10%:   <a href="?version=1&table=Table88">1.7-1.95GeV</a>   <a href="?version=1&table=Table89">6.7-7.65GeV</a>   <a href="?version=1&table=Table90">20-23GeV</a>   <a href="?version=1&table=Table91">60-95GeV</a>     10-20%:   <a href="?version=1&table=Table92">1.7-1.95GeV</a>   <a href="?version=1&table=Table93">6.7-7.65GeV</a>   <a href="?version=1&table=Table94">20-23GeV</a>   <a href="?version=1&table=Table95">60-95GeV</a>     20-30%:   <a href="?version=1&table=Table96">1.7-1.95GeV</a>   <a href="?version=1&table=Table97">6.7-7.65GeV</a>   <a href="?version=1&table=Table98">20-23GeV</a>   <a href="?version=1&table=Table99">60-95GeV</a>     30-40%:   <a href="?version=1&table=Table100">1.7-1.95GeV</a>   <a href="?version=1&table=Table101">6.7-7.65GeV</a>   <a href="?version=1&table=Table102">20-23GeV</a>   <a href="?version=1&table=Table103">60-95GeV</a>     40-50%:   <a href="?version=1&table=Table104">1.7-1.95GeV</a>   <a href="?version=1&table=Table105">6.7-7.65GeV</a>   <a href="?version=1&table=Table106">20-23GeV</a>   <a href="?version=1&table=Table107">60-95GeV</a>     50-60%:   <a href="?version=1&table=Table108">1.7-1.95GeV</a>   <a href="?version=1&table=Table109">6.7-7.65GeV</a>   <a href="?version=1&table=Table110">20-23GeV</a>   <a href="?version=1&table=Table111">60-95GeV</a>     60-80%:   <a href="?version=1&table=Table112">1.7-1.95GeV</a>   <a href="?version=1&table=Table113">6.7-7.65GeV</a>   <a href="?version=1&table=Table114">20-23GeV</a>   <a href="?version=1&table=Table115">60-95GeV</a>   RAA (Xe+Xe):   0-5%:   <a href="?version=1&table=Table116">1.7-1.95GeV</a>   <a href="?version=1&table=Table117">6.7-7.65GeV</a>   <a href="?version=1&table=Table118">20-23GeV</a>     5-10%:   <a href="?version=1&table=Table119">1.7-1.95GeV</a>   <a href="?version=1&table=Table120">6.7-7.65GeV</a>   <a href="?version=1&table=Table121">20-23GeV</a>     10-20%:   <a href="?version=1&table=Table122">1.7-1.95GeV</a>   <a href="?version=1&table=Table123">6.7-7.65GeV</a>   <a href="?version=1&table=Table124">20-23GeV</a>     20-30%:   <a href="?version=1&table=Table125">1.7-1.95GeV</a>   <a href="?version=1&table=Table126">6.7-7.65GeV</a>   <a href="?version=1&table=Table127">20-23GeV</a>     30-40%:   <a href="?version=1&table=Table128">1.7-1.95GeV</a>   <a href="?version=1&table=Table129">6.7-7.65GeV</a>   <a href="?version=1&table=Table130">20-23GeV</a>     40-50%:   <a href="?version=1&table=Table131">1.7-1.95GeV</a>   <a href="?version=1&table=Table132">6.7-7.65GeV</a>   <a href="?version=1&table=Table133">20-23GeV</a>     50-60%:   <a href="?version=1&table=Table134">1.7-1.95GeV</a>   <a href="?version=1&table=Table135">6.7-7.65GeV</a>   <a href="?version=1&table=Table136">20-23GeV</a>     60-80%:   <a href="?version=1&table=Table137">1.7-1.95GeV</a>   <a href="?version=1&table=Table138">6.7-7.65GeV</a>   <a href="?version=1&table=Table139">20-23GeV</a>   - - - - - - - - - - - - - - - - - - - -

Table 1

Charged-hadron cross-section in pp collisions. The systematic uncertainties are described in the section 7 of the paper. The total systematic uncertainties are determined by adding the contributions from all relevant sources in quadrature.

Table 2

Charged-hadron spectrum in the centrality interval 0-5% for p+Pb, divided by 〈TPPB〉. The systematic uncertainties are described in the section 7 of the paper. The total systematic uncertainties are determined by adding the contributions from all relevant sources in quadrature.

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Inclusive $K^$0 (890) and $\bar{K}^$0 (890) Production on Beryllium by $K^-$ and $\pi^-$ at 175-{GeV}

Observation of $D^*$+- and ($\bar{D}$)0 / $D^\pm$ Production in High-energy $\pi^-$ Be Interactions at the {SPS}

Inclusive $\phi$ Meson Production in $K^-$, $\bar{p}$ and $p$ Be Interactions at 100-{GeV}/$c$

Measurement of the production rates of eta and eta-prime in hadronic Z decays

Production of K0 and Lambda in hadronic Z decays

Production of charmed mesons in Z decays

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

Search for Quark Contact Interactions in Dijet Angular Distributions in pp Collisions at sqrt(s) = 7 TeV Measured with the ATLAS Detector

Search for New Particles in Two-Jet Final States in 7 TeV Proton-Proton Collisions with the ATLAS Detector at the LHC

Charged-hadron production in $pp$, $p$+Pb, Pb+Pb, and Xe+Xe collisions at $\sqrt{s_{_\text{NN}}}=5$ TeV with the ATLAS detector at the LHC