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Precision measurements of heavy-flavor hadroproduction at the Large Hadron Collider (LHC) have the ability to probe heavy-flavor parton distribution functions (PDFs) in the proton. Sensitivity of inclusive $B^\pm$ meson production cross…

High Energy Physics - Phenomenology · Physics 2022-03-15 Keping Xie , Marco Guzzi , Pavel Nadolsky

Many measurements at the LHC require efficient identification of heavy-flavour jets, i.e. jets originating from bottom (b) or charm (c) quarks. An overview of the algorithms used to identify c jets is described and a novel method to…

High Energy Physics - Experiment · Physics 2022-03-22 CMS Collaboration

A novel machine-learning-based flavor-tagging algorithm combining same-side and opposite-side tagging is used to obtain the equivalent of 27$\,$000 tagged B$^0_\mathrm{s}$ $\to$ J/$\psi\, \phi$(1020) decays from pp collisions at $\sqrt{s}$…

High Energy Physics - Experiment · Physics 2026-05-08 CMS Collaboration

Using the recombination model (RM) extended to the heavy flavor scenario, we investigate the production of charmed mesons, i.e., $D^0$, $D_s^+$ and $J/\psi$, in Pb+Pb collisions at $\sqrt{s_{NN}}=2.76$ and 5.02 TeV at the CERN Large Hadron…

High Energy Physics - Phenomenology · Physics 2025-03-07 Jingzong Zhang , Huanjing Gong , Hua Zheng , Wei Dai , Lilin Zhu

We present the status of the LHCb experiment which will make precision measurements of CP violation in $B$ meson decays. The motivation for the experiment and an overview of the detector design are given. The vertex detector, ring imaging…

High Energy Physics - Experiment · Physics 2010-11-11 Franz Muheim

The study of b-hadrons made possible a great number of benchmark results in flavour physics. In recent years a lot of effort in understanding their dynamics has been done. These studies can represent a possible avenue for the discovery of…

High Energy Physics - Experiment · Physics 2012-09-04 F. Ruffini

Lepton Flavour Universality tests with semileptonic $\Lambda_b\to\Lambda_c^*$ decays are important to corroborate the present anomalies in the similar ratios $R_{D^{(*)}}$, and can provide complementary constraints on possible origins of…

High Energy Physics - Phenomenology · Physics 2018-07-31 Philipp Böer , Marzia Bordone , Elena Graverini , Patrick Owen , Marcello Rotondo , Danny van Dyk

Measurements of $CP$-violating observables in $B$ meson decays can be used to determine the angles of the Unitarity Triangle and hence probe for manifestations of New Physics beyond the Cabibbo-Kobayashi-Maskawa Standard Model paradigm. Of…

High Energy Physics - Experiment · Physics 2017-08-30 Greig A. Cowan

In this work, the impact of recent measurements of heavy-flavour production in $pp$ collisions on parton distribution functions (PDFs) and their uncertainties is studied. In this regard, the absolute and normalised cross sections of beauty…

High Energy Physics - Phenomenology · Physics 2018-10-08 A. Aleedaneshvar , Ali N. Khorramian

We report recent results from the ALICE experiment the Large Hadron Collider on open charmed hadron production in pp collisions at $\sqrt{s} = 2.76$ and 7 TeV, and Pb-Pb collisions at $\sqrt{\mathrm{s}_{_{\mathrm{NN}}}} = 2.76$ TeV. Open…

Nuclear Experiment · Physics 2019-08-13 Kai Schweda

We report the measurements of various hadronic $B$ decays at the Belle II experiment using a $362 fb^{-1}$ sample of electron-positron collisions collected at the $\Upsilon(4S)$ resonance. All results agree with the previous determination,…

High Energy Physics - Experiment · Physics 2023-05-23 Sagar Hazra

The $C\!P$-violating flavour-specific asymmetry in neutral $b$ mesons provides a method for testing the Standard Model. The measurements from the D0 experiment yield values of this asymmetry that disagree with the Standard Model at a level…

High Energy Physics - Experiment · Physics 2019-08-13 Suzanne Klaver

We provide nonperturbative fragmentation functions for B mesons, both at leading and next-to-leading order in the MS-bar factorization scheme with five massless quark flavors. They are determined by fitting the fractional energy…

High Energy Physics - Phenomenology · Physics 2011-01-27 J. Binnewies , B. A. Kniehl , G. Kramer

Inclusive c and b-jet tagging algorithms have been developed to utilize the excellent secondary vertex reconstruction and resolution capabilities of the LHCb detector. The validation and performance of these tagging algorithms are reported…

High Energy Physics - Experiment · Physics 2015-11-03 Philip Ilten

Production measurements of charm hadrons, particularly the yield ratios of different hadron species as a function of the transverse momentum, are important to study the charm hadronisation mechanism. In this contribution, measurements of…

High Energy Physics - Experiment · Physics 2024-12-31 Tiantian Cheng

We report on the first calibration of the standard Belle II $B$-flavor tagger using the full data set collected at the $\Upsilon(4{\rm S})$ resonance in 2019 with the Belle II detector at the SuperKEKB collider, corresponding to 8.7…

High Energy Physics - Experiment · Physics 2020-08-07 Belle II Collaboration , F. Abudinén , I. Adachi , R. Adak , K. Adamczyk , P. Ahlburg , J. K. Ahn , H. Aihara , N. Akopov , A. Aloisio , F. Ameli , L. Andricek , N. Anh Ky , D. M. Asner , H. Atmacan , V. Aulchenko , T. Aushev , V. Aushev , T. Aziz , V. Babu , S. Bacher , S. Baehr , S. Bahinipati , A. M. Bakich , P. Bambade , Sw. Banerjee , S. Bansal , M. Barrett , G. Batignani , J. Baudot , A. Beaulieu , J. Becker , P. K. Behera , M. Bender , J. V. Bennett , E. Bernieri , F. U. Bernlochner , M. Bertemes , M. Bessner , S. Bettarini , V. Bhardwaj , B. Bhuyan , F. Bianchi , T. Bilka , S. Bilokin , D. Biswas , A. Bobrov , A. Bondar , G. Bonvicini , A. Bozek , M. Bračko , P. Branchini , N. Braun , R. A. Briere , T. E. Browder , D. N. Brown , A. Budano , L. Burmistrov , S. Bussino , M. Campajola , L. Cao , G. Caria , G. Casarosa , C. Cecchi , D. Červenkov , M. -C. Chang , P. Chang , R. Cheaib , V. Chekelian , C. Chen , Y. Q. Chen , Y. -T. Chen , B. G. Cheon , K. Chilikin , K. Chirapatpimol , H. -E. Cho , K. Cho , S. -J. Cho , S. -K. Choi , S. Choudhury , D. Cinabro , L. Corona , L. M. Cremaldi , D. Cuesta , S. Cunliffe , T. Czank , N. Dash , F. Dattola , E. De La Cruz-Burelo , G. De Nardo , M. De Nuccio , G. De Pietro , R. de Sangro , B. Deschamps , M. Destefanis , S. Dey , A. De Yta-Hernandez , A. Di Canto , F. Di Capua , S. Di Carlo , J. Dingfelder , Z. Doležal , I. Domínguez Jiménez , T. V. Dong , K. Dort , D. Dossett , S. Dubey , S. Duell , G. Dujany , S. Eidelman , M. Eliachevitch , D. Epifanov , J. E. Fast , T. Ferber , D. Ferlewicz , G. Finocchiaro , S. Fiore , P. Fischer , A. Fodor , F. Forti , A. Frey , M. Friedl , B. G. Fulsom , M. Gabriel , N. Gabyshev , E. Ganiev , M. Garcia-Hernandez , R. Garg , A. Garmash , V. Gaur , A. Gaz , U. Gebauer , M. Gelb , A. Gellrich , J. Gemmler , T. Geßler , D. Getzkow , R. Giordano , A. Giri , A. Glazov , B. Gobbo , R. Godang , P. Goldenzweig , B. Golob , P. Gomis , P. Grace , W. Gradl , E. Graziani , D. Greenwald , Y. Guan , C. Hadjivasiliou , S. Halder , K. Hara , T. Hara , O. Hartbrich , T. Hauth , K. Hayasaka , H. Hayashii , C. Hearty , M. Heck , M. T. Hedges , I. Heredia de la Cruz , M. Hernández Villanueva , A. Hershenhorn , T. Higuchi , E. C. Hill , H. Hirata , M. Hoek , M. Hohmann , S. Hollitt , T. Hotta , C. -L. Hsu , Y. Hu , K. Huang , T. Iijima , K. Inami , G. Inguglia , J. Irakkathil Jabbar , A. Ishikawa , R. Itoh , M. Iwasaki , Y. Iwasaki , S. Iwata , P. Jackson , W. W. Jacobs , I. Jaegle , D. E. Jaffe , E. -J. Jang , M. Jeandron , H. B. Jeon , S. Jia , Y. Jin , C. Joo , K. K. Joo , I. Kadenko , J. Kahn , H. Kakuno , A. B. Kaliyar , J. Kandra , K. H. Kang , P. Kapusta , R. Karl , G. Karyan , Y. Kato , H. Kawai , T. Kawasaki , T. Keck , C. Ketter , H. Kichimi , C. Kiesling , B. H. Kim , C. -H. Kim , D. Y. Kim , H. J. Kim , J. B. Kim , K. -H. Kim , K. Kim , S. -H. Kim , Y. -K. Kim , Y. Kim , T. D. Kimmel , H. Kindo , K. Kinoshita , B. Kirby , C. Kleinwort , B. Knysh , P. Kodyš , T. Koga , S. Kohani , I. Komarov , T. Konno , S. Korpar , N. Kovalchuk , T. M. G. Kraetzschmar , P. Križan , R. Kroeger , J. F. Krohn , P. Krokovny , H. Krüger , W. Kuehn , T. Kuhr , J. Kumar , M. Kumar , R. Kumar , K. Kumara , T. Kumita , T. Kunigo , M. Künzel , S. Kurz , A. Kuzmin , P. Kvasnička , Y. -J. Kwon , S. Lacaprara , Y. -T. Lai , C. La Licata , K. Lalwani , L. Lanceri , J. S. Lange , K. Lautenbach , P. J. Laycock , F. R. Le Diberder , I. -S. Lee , S. C. Lee , P. Leitl , D. Levit , P. M. Lewis , C. Li , L. K. Li , S. X. Li , Y. M. Li , Y. B. Li , J. Libby , K. Lieret , L. Li Gioi , J. Lin , Z. Liptak , Q. Y. Liu , Z. A. Liu , D. Liventsev , S. Longo , A. Loos , P. Lu , M. Lubej , T. Lueck , F. Luetticke , T. Luo , C. MacQueen , Y. Maeda , M. Maggiora , S. Maity , R. Manfredi , E. Manoni , S. Marcello , C. Marinas , A. Martini , M. Masuda , T. Matsuda , K. Matsuoka , D. Matvienko , J. McNeil , F. Meggendorfer , J. C. Mei , F. Meier , M. Merola , F. Metzner , M. Milesi , C. Miller , K. Miyabayashi , H. Miyake , H. Miyata , R. Mizuk , K. Azmi , G. B. Mohanty , H. Moon , T. Moon , J. A. Mora Grimaldo , A. Morda , T. Morii , H. -G. Moser , M. Mrvar , F. Mueller , F. J. Müller , Th. Muller , G. Muroyama , C. Murphy , R. Mussa , K. Nakagiri , I. Nakamura , K. R. Nakamura , E. Nakano , M. Nakao , H. Nakayama , H. Nakazawa , T. Nanut , Z. Natkaniec , A. Natochii , M. Nayak , G. Nazaryan , D. Neverov , C. Niebuhr , M. Niiyama , J. Ninkovic , N. K. Nisar , S. Nishida , K. Nishimura , M. Nishimura , M. H. A. Nouxman , B. Oberhof , K. Ogawa , S. Ogawa , S. L. Olsen , Y. Onishchuk , H. Ono , Y. Onuki , P. Oskin , E. R. Oxford , H. Ozaki , P. Pakhlov , G. Pakhlova , A. Paladino , T. Pang , A. Panta , E. Paoloni , S. Pardi , C. Park , H. Park , S. -H. Park , B. Paschen , A. Passeri , A. Pathak , S. Patra , S. Paul , T. K. Pedlar , I. Peruzzi , R. Peschke , R. Pestotnik , M. Piccolo , L. E. Piilonen , P. L. M. Podesta-Lerma , G. Polat , V. Popov , C. Praz , E. Prencipe , M. T. Prim , M. V. Purohit , N. Rad , P. Rados , R. Rasheed , M. Reif , S. Reiter , M. Remnev , P. K. Resmi , I. Ripp-Baudot , M. Ritter , M. Ritzert , G. Rizzo , L. B. Rizzuto , S. H. Robertson , D. Rodríguez Pérez , J. M. Roney , C. Rosenfeld , A. Rostomyan , N. Rout , M. Rozanska , G. Russo , D. Sahoo , Y. Sakai , D. A. Sanders , S. Sandilya , A. Sangal , L. Santelj , P. Sartori , J. Sasaki , Y. Sato , V. Savinov , B. Scavino , M. Schram , H. Schreeck , J. Schueler , C. Schwanda , A. J. Schwartz , B. Schwenker , R. M. Seddon , Y. Seino , A. Selce , K. Senyo , I. S. Seong , J. Serrano , M. E. Sevior , C. Sfienti , V. Shebalin , C. P. Shen , H. Shibuya , J. -G. Shiu , B. Shwartz , A. Sibidanov , F. Simon , J. B. Singh , S. Skambraks , K. Smith , R. J. Sobie , A. Soffer , A. Sokolov , Y. Soloviev , E. Solovieva , S. Spataro , B. Spruck , M. Starič , S. Stefkova , Z. S. Stottler , R. Stroili , J. Strube , J. Stypula , M. Sumihama , K. Sumisawa , T. Sumiyoshi , D. J. Summers , W. Sutcliffe , K. Suzuki , S. Y. Suzuki , H. Svidras , M. Tabata , M. Takahashi , M. Takizawa , U. Tamponi , S. Tanaka , K. Tanida , H. Tanigawa , N. Taniguchi , Y. Tao , P. Taras , F. Tenchini , D. Tonelli , E. Torassa , K. Trabelsi , T. Tsuboyama , N. Tsuzuki , M. Uchida , I. Ueda , S. Uehara , T. Ueno , T. Uglov , K. Unger , Y. Unno , S. Uno , P. Urquijo , Y. Ushiroda , Y. Usov , S. E. Vahsen , R. van Tonder , G. S. Varner , K. E. Varvell , A. Vinokurova , L. Vitale , V. Vorobyev , A. Vossen , E. Waheed , H. M. Wakeling , K. Wan , W. Wan Abdullah , B. Wang , C. H. Wang , M. -Z. Wang , X. L. Wang , A. Warburton , M. Watanabe , S. Watanuki , I. Watson , J. Webb , S. Wehle , M. Welsch , C. Wessel , J. Wiechczynski , P. Wieduwilt , H. Windel , E. Won , L. J. Wu , X. P. Xu , B. Yabsley , S. Yamada , W. Yan , S. B. Yang , H. Ye , J. Yelton , I. Yeo , J. H. Yin , M. Yonenaga , Y. M. Yook , T. Yoshinobu , C. Z. Yuan , G. Yuan , W. Yuan , Y. Yusa , L. Zani , J. Z. Zhang , Y. Zhang , Z. Zhang , V. Zhilich , Q. D. Zhou , X. Y. Zhou , V. I. Zhukova , V. Zhulanov , A. Zupanc

Thanks to its multi-TeV LHC proton and lead beams, the LHC complex allows one to perform the most energetic fixed-target experiments ever and to study with high precision pp, pd and pA collisions at sqrt(s_NN) = 115 GeV and Pbp and PbA…

The study of $C\!P$ violation in decays of neutral $B$ mesons provides an important test of the Standard Model (SM) predictions and it is a sensitive probe to search for non-SM physics. In these proceedings I present measurements of $C\!P$…

High Energy Physics - Experiment · Physics 2014-05-16 Francesca Dordei

Based on a sample of four million events collected by ALEPH from 1991 to 1995, a measurement of the forward-backward asymmetry in Z -> b-barb decays using inclusive final states is presented. High-performance tagging of b-barb events in a…

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

Motivated by a hint in a CMS search for right-handed $W$-bosons in $eejj$ final states, we propose an experimental test of quark-mixing matrices in a general left-right symmetric model, based on counting the numbers of $b$-tags from…

High Energy Physics - Phenomenology · Physics 2016-09-19 Andrew Fowlie , Luca Marzola