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The topic of the paper is the position reconstruction from signals of segmented detectors. With the help of a simple simulation, it is shown that the position reconstruction using the centre-of-gravity method is strongly biased, if the…

Instrumentation and Detectors · Physics 2021-09-15 A. Ebrahimi , F. Feind , E. Fretwurst , E. Garutti , M. Hajheidari , R. Klanner , D. Pitzl , J. Schwandt , G. Steinbrueck , I. Zoi

We suggest a new application for the long-baseline and high powered cavities in a laser-interferometric gravitational-wave~(GW) detector to search for WISPs (weakly interacting sub-eV particles), such as a hidden U(1) gauge boson, called…

Instrumentation and Detectors · Physics 2015-09-29 Yuki Inoue , Koji Ishidoshiro

Purpose: Luminosity measurement at the Circular Electron-Positron Collider (CEPC) is required to achieve 10^-4 precision when operating at the center-of-mass energy of the Z-pole. Approximately 10^12 Z-bosons will be collected to refine…

High Energy Physics - Experiment · Physics 2026-01-12 Jiading Gong , Jun He , Rongyan He , Suen Hou , Quan Ji , Renjie Ma , Ming Qi , Haoyu Shi , Weimin Song , Xingyang Sun , Haijing Wang , Yilun Wang , Jialiang Zhang , Lei Zhang

The production of electroweak bosons (photons, W and Z particles) in PbPb and pp collisions at sqrt(s) = 2.76 TeV per interacting nucleon pair has been measured with the CMS detector at the LHC. Direct photon production is studied using…

Nuclear Experiment · Physics 2019-08-21 Begoña de la Cruz

In preparation for Higgs factories and energy-frontier facilities, future colliders are moving toward high-granularity calorimeters to improve reconstruction quality. However, the cost and construction complexity of such detectors is…

High Energy Physics - Experiment · Physics 2025-06-04 Nilotpal Kakati , Etienne Dreyer , Eilam Gross

The $(x, y)$ position reconstruction method used in the analysis of the complete exposure of the Large Underground Xenon (LUX) experiment is presented. The algorithm is based on a statistical test that makes use of an iterative method to…

Direct photon production is an important process at hadron colliders, being relevant both for precision measurement of the gluon density, and as background to Higgs and other new physics searches. Here we explore the implications of…

High Energy Physics - Phenomenology · Physics 2014-11-21 Giovanni Diana , Juan Rojo , Richard D. Ball

Single particle cryo-electron microscopy has become a critical tool in structural biology over the last decade, able to achieve atomic scale resolution in three dimensional models from hundreds of thousands of (noisy) two-dimensional…

Numerical Analysis · Mathematics 2023-07-19 Aaditya V. Rangan , Leslie Greengard

The Large Electron Positron collider observed an indication for a new Higgs boson with a mass around $95$\,GeV-$100$\,GeV in the process $e^+e^-\to Z^*\to ZS$ with $S\to b\bar b$. The interest in this excess re-emerged with the di-photon…

We propose a method for reconstructing the mass of a particle, such as the Higgs boson, decaying into a pair of tau leptons, of which one subsequently undergoes a 3-prong decay. The kinematics is solved using information from the visible…

High Energy Physics - Phenomenology · Physics 2015-06-11 Ben Gripaios , Keiko Nagao , Mihoko Nojiri , Kazuki Sakurai , Bryan Webber

In this paper we propose a new reconstruction method to explore the low mass region in the associated production of top-quark pairs ($t\bar{t}$) with a generic scalar boson ($\phi$) at the LHC. The new method of mass reconstruction shows an…

High Energy Physics - Phenomenology · Physics 2021-04-28 Duarte Azevedo , Rodrigo Capucha , Emanuel Gouveia , António Onofre , Rui Santos

The main attractions of studying the bosonic sector of the electroweak standard model and its extensions at a future high energy photon collider are reviewed. A presentation of the laser scheme for obtaining such a collider is given where…

High Energy Physics - Phenomenology · Physics 2008-02-03 M. Baillargeon , G. Belanger , F. Boudjema

We study the expected sensitivity to measure the branching ratio of Higgs boson decays to invisible particles at a future circular \epem collider (FCC-ee) in the process $e^+e^-\to HZ$ with $Z\to \ell^+\ell^-$ ($\ell=e$ or $\mu$) using an…

High Energy Physics - Experiment · Physics 2017-03-08 Olmo Cerri , Michele de Gruttola , Maurizio Pierini , Alessandro Podo , Gigi Rolandi

Precise measurement of the Higgs boson properties is an important issue of the International Linear Collider (ILC) experiment. We studied the accuracy of the Higgs mass reconstruction in the ZH->qqH multi-jet process with the Higgs mass of…

High Energy Physics - Experiment · Physics 2009-07-15 Hiroaki Ono

We study Higgs diphoton decays, in which both photons undergo nuclear conversion to electron- positron pairs. The kinematic distribution of the two electron-positron pairs may be used to probe the CP violating (CPV) coupling of the Higgs to…

High Energy Physics - Phenomenology · Physics 2015-11-11 Fady Bishara , Yuval Grossman , Roni Harnik , Dean J. Robinson , Jing Shu , Jure Zupan

TPC is a promising technology for the future electron positron colliders. However, its application might be limited at high event rate and high hit occupancies. In this paper, we study the feasibility of using TPC at the circular electron…

Instrumentation and Detectors · Physics 2017-08-02 Mingrui Zhao , Manqi Ruan , Huirong Qi , Yuanning Gao

The process ee-->ZH allows to measure the Higgs boson in the recoil mass spectrum against the Z boson without any assumptions on the Higgs boson decay. We performed a full simulation and reconstruction of ee-->ZH using the MOKKA and MARLIN…

High Energy Physics - Experiment · Physics 2009-02-16 W. Lohmann , M. Ohlerich , A. Raspereza , A. Schälicke

We present the first detailed measurement of incoherent photoproduction of neutral pions to a discrete state of a residual nucleus. The $^{12}$C$(\gamma,\pi^{0})^{12}$C$^{*}_{4.4MeV}$ reaction has been studied with the Glasgow photon tagger…

Future collider experiments require unprecedented precision in measurements of Higgs, electroweak, and flavour observables, placing stringent demands on event reconstruction. The achievable precision on Higgs couplings scales directly with…

High Energy Physics - Experiment · Physics 2026-03-05 Dolores Garcia , Lena Herrmann , Gregor Krzmanc , Michele Selvaggi

The violation of CP symmetry at the electro-weak scale is one of the essential ingredients for electro-weak baryogenesis. It is therefore of great interest to map the CP properties of the Higgs sector in as much detail as possible. A linear…

High Energy Physics - Experiment · Physics 2022-03-15 I. Božović-Jelisavucić , N. Vukausinović , D. Jeans
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