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We study angular observables in the $e^+e^-\to Z H\to \ell^+ \ell^-\,b\bar{b}$ channel at future circular $e^+ e^-$ colliders such as CEPC and FCC-ee. Taking into account the impact of realistic cut acceptance and detector effects, we…

High Energy Physics - Phenomenology · Physics 2016-03-17 Nathaniel Craig , Jiayin Gu , Zhen Liu , Kechen Wang

We report the first inclusive photon measurements about mid-rapidity (|y|<0.5) from Au+Au collisions at sqrt(s_{NN}) = 130 GeV at RHIC. Photon pair conversions were reconstructed from electron and positron tracks measured with the Time…

Nuclear Experiment · Physics 2012-08-27 STAR Collaboration

Correlations between non-identical particles at small relative velocity probe asymmetries in the average space-time emission points at freeze-out. The origin of such asymmetries may be from long-lived resonances, bulk collective effects, or…

Nuclear Experiment · Physics 2019-08-13 Marcin Zawisza

PHENIX has measured the e^+e^- pair continuum in sqrt(s_NN) = 200 GeV Au+Au and p+p collisions over a wide range of mass and transverse momenta. While the p+p data in the mass range below the phi meson are well described by known…

Nuclear Experiment · Physics 2019-08-13 Torsten Dahms

Proton-proton correlations from spectator decays following Au + Au collisions at 1000 AMeV have been measured with an highly efficient detector hodoscope. The constructed correlation functions indicate a moderate expansion and low breakup…

Nuclear Experiment · Physics 2019-08-14 C. Schwarz

Two-proton correlation functions have been measured in Si+Pb collisions at 14.6A GeV/c and Au+Au collisions at 11.5A GeV/c by the E814/E877 collaboration. Data are compared with predictions of the transport model RQMD and the source size is…

Nuclear Experiment · Physics 2012-08-27 E877 Collaboration , J. Barrette

Inclusive double differential multiplicities and rapidity density distributions of hadrons are presented for 10.8 A GeV/c Au+Au collisions as measured at the AGS by the E877 collaboration. The results indicate that large amounts of stopping…

Nuclear Experiment · Physics 2009-10-30 Roger Lacasse , the E877 Collaboration

Emission source functions are extracted from correlation functions constructed from charged pions produced at mid-rapidity in Au+Au collisions at sqrt(s_NN)=200 GeV. The source parameters extracted from these functions at low k_T, give…

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

In this paper we present the measurement of charged pion two-particle femtoscopic correlation functions in 200 GeV Au+Au collisions, in 31 average transverse mass bins, separately for positive and negative pion pairs. L\'evy-shaped source…

Nuclear Experiment · Physics 2017-12-19 Mate Csanad

The E895 experiment at the AGS measured strange particle production and collective behavior in Au+Au collisions between 2--8 AGeV. The production of $\Lambda$ Baryons and K$^0$ Mesons as function of energy rises smoothly and exhibits a…

Nuclear Experiment · Physics 2019-08-14 C. Pinkenburg

We report the recent results of proton and anti-proton yields as a function of centrality and p_T in Au+Au collisions at sqrt(s_NN) = 200 GeV, measured by the PHENIX experiment at RHIC. In central collisions at intermediate transverse…

Nuclear Experiment · Physics 2019-08-14 Tatsuya Chujo

The first measurement of two-pion Bose-Einstein correlations in central Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 2.76$ TeV at the Large Hadron Collider is presented. We observe a growing trend with energy now not only for the longitudinal…

Nuclear Experiment · Physics 2017-10-02 ALICE Collaboration

Electron-positron ($e^+e^-$) collisions provide a clean environment for precision tests of Quantum Chromodynamics (QCD) due to the absence of hadronic initial-state effects. We present a novel analysis of archived ALEPH data from the Large…

High Energy Physics - Experiment · Physics 2025-05-20 Hannah Bossi , Yu-Chen Chen , Yi Chen , Jingyu Zhang , Gian Michele Innocenti , Anthony Badea , Austin Baty , Marcello Maggi , Chris McGinn , Yen-Jie Lee

Data collected at centre-of-mass energies of 181-184 GeV by ALEPH at LEP corresponding to an integrated luminosity of 56.9 pb-1, are analysed in a search for pair-produced charged Higgs bosons H+-. Three analyses are employed to select the…

High Energy Physics - Experiment · Physics 2008-11-26 ALEPH Collaboration , R. Barate et al

Measurement of quantumstatistical correlation functions in high energy nuclear physics is an important tool to investigate the QCD phase diagram. It may be used to search for the critical point, and also to understand underlying processes…

Nuclear Experiment · Physics 2018-11-27 Sándor Lökös

Using the two-component model, we analyze Bose-Einstein correlations in pp collisions at the center-of-mass energy of 13 TeV, measured by the CMS Collaboration at the LHC, and compare results with the $\tau$-model. We utilize data described…

High Energy Physics - Phenomenology · Physics 2023-07-06 Takuya Mizoguchi , Seiji Matsumoto , Minoru Biyajima

Bose-Einstein correlations between identical particles are measured in samples of proton-proton collisions at 0.9 and 7 TeV centre-of-mass energies, recorded by the CMS experiment at the LHC. The signal is observed in the form of an…

High Energy Physics - Experiment · Physics 2015-03-17 CMS Collaboration

Using the large acceptance apparatus FOPI, we study pion emission in the reactions (energies in GeV/nucleon are given in parentheses): 40Ca+40Ca (0.4, 0.6, 0.8, 1.0, 1.5, 1.93), 96Ru+96Ru (0.4, 1.0, 1.5), 96Zr+96Zr (0.4, 1.0, 1.5),…

Nuclear Experiment · Physics 2008-11-26 FOPI Collaboration , W. Reisdorf

First measurements of the beam energy dependence of the two proton correlation function in central Au+Au collisions are performed by the E895 Collaboration at the BNL AGS. The imaging technique of Brown-Danielewicz is used in order to…

Nuclear Experiment · Physics 2007-05-23 S. Y. Panitkin

The charged Higgs pair production via photon-photon collisions is investigated in the framework of two Higgs doublet model (2HDM), taking into account a full set of one-loop-level scattering amplitudes, i.e., including electroweak (EW)…

High Energy Physics - Phenomenology · Physics 2020-11-18 Mehmet Demirci