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The differential invariant yield as a function of transverse momentum ($p_\mathrm{T}$) of electrons from semileptonic heavy-flavour hadron decays was measured at midrapidity in central (0-10%), semi-central (30-50%) and peripheral (60-80%)…

Nuclear Experiment · Physics 2020-06-16 ALICE Collaboration

The photoneutron reaction $^{181}\rm{Ta}(\gamma,3n)^{178m,g}\rm{Ta}$ was investigated with the beam from the NSC KIPT electron linear accelerator LUE-40. The measurements were performed using the residual $\gamma$-activity method. The…

Nuclear Experiment · Physics 2022-01-26 O. S. Deiev , I. S. Timchenko , S. N. Olejnik , V. A. Kushnir , V. V. Mytrochenko , S. A. Perezhogin

The photon-proton total cross section has been measured in the process e+ p -> e+ gamma p -> e+ X with the ZEUS detector at HERA. Events were collected with photon virtuality Q^2 < 0.02 GeV^2 and average gamma-p center-of-mass energy…

High Energy Physics - Experiment · Physics 2012-08-27 ZEUS Collaboration

The cross section for the pd --> ^3He eta pi0 reaction has been measured at a beam energy of 1450 MeV using the WASA detector at the CELSIUS storage ring and detecting one ^3He and four photons from the decays of the two photons. The data…

The CLAS Collaboration at Jefferson Lab conducted a photoproduction experiment on a proton target using a tagged photon beam with an energy range of 1.5-3.8 GeV during May-July 2004. With an integrated luminosity of about 75 $pb^{-1}$, this…

High Energy Physics - Experiment · Physics 2019-08-14 L. Guo , D. P. Weygand

The ratio of the yields of antiprotons to protons in pp collisions has been measured by the ALICE experiment at $\sqrt{s} = 0.9$ and $7$ TeV during the initial running periods of the Large Hadron Collider(LHC). The measurement covers the…

High Energy Physics - Experiment · Physics 2017-10-02 ALICE Collaboration

The response of the ATLAS detector to large-radius jets is measured in situ using 36.2 fb$^{-1}$ of $\sqrt{s} = 13$ TeV proton-proton collisions provided by the LHC and recorded by the ATLAS experiment during 2015 and 2016. The jet energy…

High Energy Physics - Experiment · Physics 2019-03-28 ATLAS Collaboration

The $\gamma$-ray strength function of $^{56}$Fe has been measured from proton-$\gamma$ coincidences for excitation energies up to $\approx 11$ MeV. The low-energy enhancement in the $\gamma$-ray strength function, which was first discovered…

The cross section of the 16O(a,g)20Ne capture reaction is analyzed at low energies where the direct capture mechanism is dominant. For temperatures below T9 = 0.2 the resulting astrophysical reaction rate is about a factor of two higher…

Astrophysics · Physics 2007-05-23 P. Mohr

The cross sections of the 169Tm({\alpha}, {\gamma})173Lu and 169Tm({\alpha},n)172Lu reactions have been measured first time using a new method, by detecting the characteristic X-ray radiation following the electron capturedecay of…

Nuclear Experiment · Physics 2015-03-17 G. G. Kiss , T. Rauscher , T. Szücs , Zs. Kertész , Zs. Fülöp , Gy. Gyürky , C. Fröhlich , J. Farkas , Z. Elekes , E. Somorjai

For the better understanding of the astrophysical gamma-process the experimental determination of low energy proton- and alpha-capture cross sections on heavy isotopes is required. The existing data for the 92Mo(p,gamma)93Tc reaction are…

Nuclear Experiment · Physics 2015-06-18 Gy. Gyürky , M. Vakulenko , Zs. Fülöp , Z. Halász , G. G. Kiss , E. Somorjai , T. Szücs

The average total energy as well as its hadronic and electromagnetic components are measured with the CMS detector at pseudorapidities $-$6.6 $<$ $\eta$ $<-$5.2 in proton-proton collisions at a centre-of-mass energy $\sqrt{s} =$ 13 TeV. The…

High Energy Physics - Experiment · Physics 2019-11-11 CMS Collaboration

We have simultaneously measured the energy spectra of neutrons and protons emitted in the non-mesonic weak decays of 5_Lambda-He and 12_Lambda-C hypernuclei produced via the (pi^+,k^+) reaction with much higher statistics over those of…

During the slow neutron capture process in massive stars, reactions on light elements can both produce and absorb neutrons thereby influencing the final heavy element abundances. At low metallicities, the high neutron capture rate of 16-O…

The fraction of halo events among gamma-hadron families with SUM(Egamma) > 500 TeV is analyzed. The comparison of experimental data and Monte-Carlo simulations by MC0 code of quark-gluon string model under various assumptions on the PCR…

High Energy Astrophysical Phenomena · Physics 2018-05-01 Z. M. Guseva , E. A. Kanevskaya , J. Kempa , V. M. Maximenko , R. A. Mukhamedshin , S. E. Pyatovsky , V. S. Puchkov , S. A. Slavatinsky

A measurement of direct photons in p+p collisions at sqrt(s)=200 GeV is presented. A photon excess above background from pi^0 --> gamma+gamma, eta --> gamma+gamma, and other decays is observed in the transverse momentum range 5.5 < p_T < 7…

High Energy Physics - Experiment · Physics 2008-11-26 PHENIX Collaboration , S. Adler

A new value for the emission probability of 137.144keV g-ray of 186gRe decay are re-recommended to be 9.47+-0.03 (%). From this new g-ray emission probability, the measured cross sections for 187Re(n,2n)186mRe and 187Re(n,2n)186gRe…

Nuclear Theory · Physics 2016-08-24 Xiao-Long Huang , Meng-Xiao Kang , Li-Le Liu , Ji-Min Wang , Li-Yang Jiang , Xiong-Jun Chen

We present the first measurement of the exclusive reaction $\gamma p \rightarrow a_2(1320)^0 \, p$ in the photon energy range $3.5$-$5.5$ GeV and four-momentum transfer squared $0.2<-t<2.0$ GeV$^2$. Data were collected with the CEBAF Large…

Nuclear Experiment · Physics 2020-10-07 A. Celentano , M. Battaglieri , R. De Vita , L. Marsicano , V. Mathieu , A. Pilloni , A. Szczepaniak
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