English
Related papers

Related papers: LEP 1 Heavy Flavour Electroweak Physics and 2-Ferm…

200 papers

Cross-section and angular distributions for hadronic and lepton-pair final states in e+e- collisions at centre-of-mass energies between 189 GeV and 209 GeV, measured with the OPAL detector at LEP, are presented and compared with the…

High Energy Physics - Experiment · Physics 2008-11-26 The OPAL collaboration , G. Abbiendi

We discuss forward-backward charge asymmetries for lepton pair production in association with a large transverse momentum jet at hadron colliders. The measurement of the lepton charge asymmetry relative to the jet direction A_{FB}^j gives a…

High Energy Physics - Phenomenology · Physics 2009-11-07 F. del Aguila , Ll. Ametller , P. Talavera

In recent years, PHENIX has studied many important observables related to heavy-flavor physics through their leptonic decay measurements including the invariant yield of electrons from nonphotonic sources, and prompt single muons, both of…

Nuclear Experiment · Physics 2019-08-21 Marisilvia Donadelli

The present report of the RF2 Topical Group to Snowmass 2021 describes the physics case for the studies of weak decays of strange and light quarks. Ongoing and proposed precision measurements of kaon, hyperon, pion and $\eta^{(\prime)}$…

High Energy Physics - Experiment · Physics 2022-09-16 Evgueni Goudzovski , Emilie Passemar

Cross-sections for hadronic, b-bbar and lepton pair final states in e+e- collisions at sqrt(s) = 183 GeV, measured with the OPAL detector at LEP, are presented and compared with the predictions of the Standard Model. Forward-backward…

High Energy Physics - Experiment · Physics 2008-11-26 The OPAL Collaboration , G. Abbiendi et al

This note presents a combination of published and preliminary electroweak results from the four LEP collaborations and the SLD collaboration which were prepared for the 2004 summer conferences. [...] The main changes with respect to the…

The LHeC is a proposed upgrade of the LHC to study $ep/eA$ collisions in the TeV regime, by adding a 60 GeV electron beam through an energy recovery linac. In $ep$, high precision top and electroweak physics can be performed, such as…

High Energy Physics - Experiment · Physics 2015-11-18 Zhiqing Zhang

We report the first measurement of the lepton forward-backward asymmetry ${\cal A}_{\rm FB}$ as a function of the squared four-momentum of the dilepton system, $q^2$, for the electroweak penguin process $B \rightarrow X_s \ell^+ \ell^-$…

High Energy Physics - Experiment · Physics 2016-03-02 Y. Sato , A. Ishikawa , H. Yamamoto , A. Abdesselam , I. Adachi , K. Adamczyk , H. Aihara , D. M. Asner , V. Aulchenko , T. Aushev , R. Ayad , A. M. Bakich , A. Bala , V. Bhardwaj , B. Bhuyan , A. Bondar , G. Bonvicini , A. Bozek , M. Bra\v , T. E. Browder , D. \v , V. Chekelian , A. Chen , B. G. Cheon , I. -S. Cho , K. Cho , V. Chobanova , Y. Choi , D. Cinabro , J. Dalseno , M. Danilov , Z. Dole\v , Z. Drásal , A. Drutskoy , D. Dutta , K. Dutta , S. Eidelman , H. Farhat , J. E. Fast , T. Ferber , V. Gaur , A. Garmash , R. Gillard , Y. M. Goh , B. Golob , J. Haba , T. Hara , K. Hayasaka , H. Hayashii , X. H. He , Y. Hoshi , W. -S. Hou , H. J. Hyun , T. Iijima , R. Itoh , Y. Iwasaki , T. Iwashita , I. Jaegle , T. Julius , J. H. Kang , E. Kato , Y. Kato , H. Kawai , T. Kawasaki , H. Kichimi , D. Y. Kim , H. J. Kim , J. B. Kim , J. H. Kim , M. J. Kim , Y. J. Kim , K. Kinoshita , J. Klucar , B. R. Ko , P. Kody\v , S. Korpar , P. Kri\v , P. Krokovny , T. Kuhr , T. Kumita , A. Kuzmin , Y. -J. Kwon , S. -H. Lee , Y. Li , J. Libby , C. Liu , Y. Liu , Z. Q. Liu , D. Liventsev , P. Lukin , H. Miyata , R. Mizuk , G. B. Mohanty , A. Moll , R. Mussa , M. Nakao , Z. Natkaniec , M. Nayak , E. Nedelkovska , N. K. Nisar , S. Nishida , O. Nitoh , S. Ogawa , P. Pakhlov , H. Park , H. K. Park , T. K. Pedlar , T. Peng , R. Pestotnik , M. Petri\v , L. E. Piilonen , E. Ribe\v , M. Ritter , M. Röhrken , A. Rostomyan , H. Sahoo , T. Saito , Y. Sakai , S. Sandilya , D. Santel , L. Santelj , T. Sanuki , V. Savinov , O. Schneider , G. Schnell , C. Schwanda , A. J. Schwartz , R. Seidl , D. Semmler , K. Senyo , M. E. Sevior , M. Shapkin , C. P. Shen , T. -A. Shibata , J. -G. Shiu , B. Shwartz , A. Sibidanov , F. Simon , Y. -S. Sohn , A. Sokolov , E. Solovieva , S. Stani\v , M. Stari\v , T. Sumiyoshi , U. Tamponi , G. Tatishvili , Y. Teramoto , K. Trabelsi , M. Uchida , S. Uehara , T. Uglov , Y. Unno , S. Uno , P. Urquijo , Y. Ushiroda , Y. Usov , S. E. Vahsen , C. Van Hulse , P. Vanhoefer , G. Varner , K. E. Varvell , V. Vorobyev , C. H. Wang , M. -Z. Wang , P. Wang , X. L. Wang , Y. Watanabe , E. Won , J. Yamaoka , Y. Yamashita , S. Yashchenko , Y. Yook , Z. P. Zhang , V. Zhilich , V. Zhulanov , A. Zupanc

We review the status of heavy flavour physics at the Fermilab Tevatron collider by summarizing recent top quark and B physics results from CDF and DO. In particular we discuss the measurement of the top quark mass and top production cross…

High Energy Physics - Experiment · Physics 2007-05-23 M. Paulini

Heavy-flavour measurements give an important contribution to the understanding of the Quark-Gluon Plasma (QGP) produced in heavy-ion collisions. Heavy quarks are effective probes for the QGP and understanding their interaction with the…

Nuclear Experiment · Physics 2018-07-03 Martin Völkl

Flavor-breaking interactions due to heavy new physics can be probed at a 10 TeV muon collider in the high-energy production of quarks and leptons. The high collision energy mitigates the suppression of the new interactions, offering…

High Energy Physics - Phenomenology · Physics 2025-12-23 Alfredo Glioti , David Marzocca , Andrea Wulzer

We discuss the phenomenology of a class of supersymmetric models in which some of the quark and lepton superfields are an integral part of a dynamical supersymmetry breaking sector. The corresponding squarks and sleptons are much heavier…

High Energy Physics - Phenomenology · Physics 2009-10-30 Sandro Ambrosanio , Ann E. Nelson

New results with increased statistics are presented for heavy flavour production at Q2<150 Gev2 and in the photoproduction limit Q2-->0. Cross sections for Dstar production, F2charm, the gluon density in the proton, and inelastic J/psi…

High Energy Physics - Experiment · Physics 2009-10-31 B. Naroska

Four-fermion production via electroweak neutral currents has been measured by all four LEP collaborations at center-of-mass energies near the Z resonance and for the first time also at energies well above the Z peak. Essentially all…

High Energy Physics - Experiment · Physics 2007-05-23 Michael Kobel , representing the four LEP collaborations ALEPH , DELPHI , L3 , OPAL

We compare the sensitivity of precision measurements of lepton flavour observables to the reach of the LHC in a case study of lepton-flavour violating operators of dimension six with two leptons and two quarks. For light quarks precision…

High Energy Physics - Phenomenology · Physics 2016-02-29 Yi Cai , Michael A. Schmidt

One of the fundamental predictions of the Standard Model is Lepton Flavour Universality. Any deviation from this prediction would indicate the existence of physics beyond the Standard Model. Recent LHCb measurements present a pattern of…

High Energy Physics - Phenomenology · Physics 2018-08-21 Yoav Afik , Jonathan Cohen , Eitan Gozani , Enrique Kajomovitz , Yoram Rozen

Electroweak Precision Measurements are stringent tests of the Standard Model and sensitive probes to New Physics. Accurate studies of the $Z$-boson couplings to the first-generation quarks, which are currently constrained from LEP data to a…

High Energy Physics - Phenomenology · Physics 2025-11-13 Krzysztof Mękała , Daniel Jeans , Jürgen Reuter , Junping Tian , Aleksander Filip Żarnecki

The most important hint of physics beyond the Standard Model (SM) from the 1995 precision electroweak data is that the most precisely measured quantities, the total, leptonic and hadronic decay widths of the $Z$ and the effective weak…

High Energy Physics - Phenomenology · Physics 2010-11-23 Kaoru Hagiwara

Various aspects of physics at LEP 2 are reviewed from a phenomenological point of view. We first discuss the search for Higgs bosons, which might be relatively light if indications from the precision electroweak data and supersymmetry are…

High Energy Physics - Phenomenology · Physics 2007-05-23 John Ellis

Charged lepton flavour-violating (cLFV) processes, which are definite proof of new physics beyond the Standard Model, have remained elusive experimentally till now. Effective Field Theory (EFT) has been very useful in providing information…

High Energy Physics - Phenomenology · Physics 2026-01-06 Utpal Chattopadhyay , Debottam Das , Rahul Puri , Joydeep Roy