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We identify the correct power counting of all the variables in the low-$q^2$ window of the inclusive decay $\bar B \to X_s \ell^+\ell^-$ within the effective theory SCET if a hadronic mass cut is imposed. Furthermore we analyse the resolved…

High Energy Physics - Phenomenology · Physics 2017-11-06 Tobias Hurth , Michael Benzke , Michael Fickinger , Sascha Turczyk

The shape of the lepton spectrum in inclusive semileptonic $B\to X\,\ell\,\bar\nu_\ell$ decay is sensitive to matrix elements of the heavy quark effective theory, $\bar\Lambda$ and $\lambda_1$. From CLEO data we extract…

High Energy Physics - Phenomenology · Physics 2014-11-17 Martin Gremm , Anton Kapustin , Zoltan Ligeti , Mark B. Wise

I briefly review the description of inclusive heavy hadron decays based on the inverse heavy quark mass expansion. In particular, I consider the transition $B \to X_u \ell \nu$ and the problem of extracting $V_{ub}$, mainly as far as the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Fulvia De Fazio

This paper presents $\alpha_s$ corrections to the inclusive semitauonic $B \to X_c \tau \bar{\nu}_\tau$ decay width and leptonic invariant mass spectrum up to order $1/m_b^3$ in the heavy quark expansion. Analytical results with full…

High Energy Physics - Phenomenology · Physics 2023-06-30 Daniel Moreno

We present analytical results for higher order corrections to the decay spectra of inclusive semileptonic heavy hadron weak decays using the heavy quark expansion (HQE). We compute analytically the spectrum of the leptonic invariant mass…

High Energy Physics - Phenomenology · Physics 2022-04-13 Th. Mannel , D. Moreno , A. A. Pivovarov

The hadronic invariant mass spectrum for the inclusive charmless semileptonic decay $B\to X_u e \bar\nu_e$ is studied. Particular attention is paid to the region $s_H<m_D^2$, which may be useful for extracting the value of $|V_{ub}|$. The…

High Energy Physics - Phenomenology · Physics 2014-11-17 Adam F. Falk , Zoltan Ligeti , Mark B. Wise

We evaluate the inclusive semileptonic B decay spectrum as a function of the final-state hadrons energy to second order in the inverse quark mass expansion and tree level in $\alpha_{s}$. We argue that there is an energy interval below the…

High Energy Physics - Phenomenology · Physics 2010-11-01 A. Bouzas , D. Zappala

We present measurements of partial branching fractions of inclusive semileptonic $B \to X_u \, \ell^+\, \nu_{\ell}$ decays using the full Belle data set of 711 fb$^{-1}$ of integrated luminosity at the $\Upsilon(4S)$ resonance and for $\ell…

High Energy Physics - Experiment · Physics 2021-07-13 Belle Collaboration , L. Cao , W. Sutcliffe , R. Van Tonder , F. U. Bernlochner , I. Adachi , H. Aihara , S. Al Said , D. M. Asner , H. Atmacan , T. Aushev , R. Ayad , V. Babu , M. Bauer , P. Behera , K. Belous , J. Bennett , M. Bessner , V. Bhardwaj , T. Bilka , J. Biswal , G. Bonvicini , A. Bozek , M. Bračko , T. E. Browder , M. Campajola , D. Červenkov , M. -C. Chang , P. Chang , V. Chekelian , A. Chen , B. G. Cheon , K. Chilikin , H. E. Cho , K. Cho , S. -J. Cho , S. -K. Choi , Y. Choi , S. Choudhury , D. Cinabro , S. Cunliffe , S. Das , N. Dash , G. De Nardo , F. Di Capua , J. Dingfelder , Z. Doležal , T. V. Dong , S. Dubey , S. Eidelman , D. Epifanov , T. Ferber , D. Ferlewicz , A. Frey , B. G. Fulsom , R. Garg , V. Gaur , A. Garmash , A. Giri , P. Goldenzweig , Y. Guan , C. Hadjivasiliou , T. Hara , O. Hartbrich , K. Hayasaka , H. Hayashii , M. T. Hedges , M. Hernandez Villanueva , W. -S. Hou , C. -L. Hsu , T. Iijima , K. Inami , A. Ishikawa , R. Itoh , M. Iwasaki , Y. Iwasaki , W. W. Jacobs , E. -J. Jang , H. B. Jeon , S. Jia , Y. Jin , C. W. Joo , K. K. Joo , K. H. Kang , G. Karyan , T. Kawasaki , H. Kichimi , C. Kiesling , B. H. Kim , C. H. Kim , D. Y. Kim , H. J. Kim , K. -H. Kim , S. H. Kim , Y. -K. Kim , K. Kinoshita , P. Kodyš , T. Konno , A. Korobov , S. Korpar , D. Kotchetkov , E. Kovalenko , P. Križan , R. Kroeger , P. Krokovny , T. Kuhr , M. Kumar , R. Kumar , K. Kumara , A. Kuzmin , Y. -J. Kwon , K. Lalwani , J. S. Lange , I. S. Lee , S. C. Lee , P. Lewis , C. H. Li , J. Li , L. K. Li , Y. B. Li , L. Li Gioi , J. Libby , K. Lieret , Z. Liptak , D. Liventsev , J. MacNaughton , C. MacQueen , M. Masuda , T. Matsuda , D. Matvienko , M. Merola , F. Metzner , K. Miyabayashi , R. Mizuk , G. B. Mohanty , T. J. Moon , T. Mori , M. Mrvar , R. Mussa , M. Nakao , Z. Natkaniec , A. Natochii , L. Nayak , M. Nayak , M. Niiyama , N. K. Nisar , S. Nishida , K. Nishimura , S. Ogawa , H. Ono , Y. Onuki , P. Oskin , P. Pakhlov , G. Pakhlova , T. Pang , S. Pardi , C. W. Park , H. Park , S. -H. Park , S. Patra , S. Paul , T. K. Pedlar , R. Pestotnik , L. E. Piilonen , T. Podobnik , V. Popov , E. Prencipe , M. T. Prim , M. Ritter , M. Röhrken , A. Rostomyan , N. Rout , M. Rozanska , G. Russo , D. Sahoo , Y. Sakai , S. Sandilya , A. Sangal , L. Santelj , T. Sanuki , V. Savinov , G. Schnell , J. Schueler , C. Schwanda , A. J. Schwartz , Y. Seino , K. Senyo , M. E. Sevior , M. Shapkin , C. Sharma , C. P. Shen , J. -G. Shiu , F. Simon , A. Sokolov , E. Solovieva , S. Stanič , M. Starič , Z. S. Stottler , J. F. Strube , T. Sumiyoshi , M. Takizawa , U. Tamponi , K. Tanida , F. Tenchini , K. Trabelsi , M. Uchida , T. Uglov , Y. Unno , S. Uno , P. Urquijo , Y. Usov , S. E. Vahsen , G. Varner , K. E. Varvell , A. Vinokurova , V. Vorobyev , A. Vossen , E. Waheed , C. H. Wang , E. Wang , M. -Z. Wang , P. Wang , M. Watanabe , S. Watanuki , S. Wehle , J. Wiechczynski , E. Won , X. Xu , B. D. Yabsley , W. Yan , S. B. Yang , H. Ye , J. H. Yin , C. Z. Yuan , Y. Yusa , Z. P. Zhang , V. Zhilich , V. Zhukova , V. Zhulanov

In this paper we compute $\alpha_s$ corrections to the matching coefficients of the dimension six operators in the Heavy Quark Expansion of the inclusive semileptonic heavy hadron decay rate and leptonic invariant mass spectrum with a…

High Energy Physics - Phenomenology · Physics 2024-03-04 Daniel Moreno

We report measurements of the inclusive electron energy spectrum and hadron invariant mass spectrum for charmed semileptonic decays of B mesons in a 140 fb^-1 data sample collected with the Belle detector at the KEKB e+e- collider. We…

High Energy Physics - Experiment · Physics 2019-08-14 Phillip Urquijo

We present theoretical predictions for observables in inclusive $\bar{B}\to X_s \ell^+\ell^-$ suitable for measurements at hadron colliders through a sum-over-exclusive approach. At low $q^2$ we calculate the branching ratio and three…

High Energy Physics - Phenomenology · Physics 2025-06-16 Tobias Huber , Tobias Hurth , Jack Jenkins , Enrico Lunghi , Qin Qin , K. Keri Vos

We discuss the recent developments in inclusive decays of hadrons containing a heavy quark. The subject is approached in a model independent way using an operator product expansion for the time-ordered product of weak currents. We discuss…

High Energy Physics - Phenomenology · Physics 2009-10-28 Martin J. Savage

We study inclusive semileptonic $\bar{B}\to X_c \ell \bar{\nu}$ decays ($\ell = e,\mu$) in the presence of generic physics Beyond the Standard Model (BSM) that is heavy compared to the $b$-quark mass. Its effect is encoded in the Wilson…

High Energy Physics - Phenomenology · Physics 2025-09-01 Alexandre Carvunis , Gael Finauri , Paolo Gambino , Martin Jung , Sandro Mächler

In this paper we investigate the hadronic mass spectra of inclusive B decays. Specifically, we study how an upper cut on the invariant mass spectrum, which is necessary to extract V_{ub}, results in the breakdown of the standard…

High Energy Physics - Phenomenology · Physics 2014-11-17 Adam K. Leibovich , Ian Low , I. Z. Rothstein

We report updates on two analyses of inclusive semileptonic B decays based on a dataset of 89 million BB events recorded with the BABAR detector at the Y(4S) resonance. Events are selected by fully reconstructing the decay of one B meson…

High Energy Physics - Experiment · Physics 2019-08-14 Urs Langenegger

We present a measurement of moments of the inclusive hadronic-mass and -energy spectrum in semileptonic $\bar{B} \to X_{c} \ell^{-} \bar{\nu}$ decays. This study is based on a sample of 232 million $\Upsilon(4S) \to B\bar{B}$ decays…

High Energy Physics - Experiment · Physics 2007-07-19 The BABAR Collaboration , B. Aubert

Inclusive semileptonic decays are discussed in the framework of heavy quark effective field theory by employing the short distance expansion in the effective theory. The lowest order term turns out to be the parton model; the higher order…

High Energy Physics - Phenomenology · Physics 2009-10-22 Thomas Mannel

Inclusive semileptonic decays of beauty baryons are studied using the heavy quark expansion to ${\cal O}(1/m_b^3)$, at leading order in $\alpha_s$. The case of a polarized decaying baryon is examined, with reference to $\Lambda_b$. An…

High Energy Physics - Phenomenology · Physics 2022-12-19 Pietro Colangelo , Fulvia De Fazio , Francesco Loparco

A mini-review of measurements of inclusive semileptonic $B \to X_c\ell\nu$ and radiative $B\to X_s\gamma$ decays is presented. The semileptonic $X_c$ mass moments are presented from Belle and BABAR. The inclusive $B\to X_s\gamma$ gamma…

High Energy Physics - Experiment · Physics 2010-12-01 Kyle J. Knoepfel

A novel approach to reconstruct inclusive $\bar{B} \to X_{s} \ell^{+}\ell^{-}$ decays is presented. The method relies on isopsin symmetry to extrapolate the semi-inclusive signature $X_{b}\to K^{+} \ell^{+}\ell^{-} X$ to the fully inclusive…

High Energy Physics - Phenomenology · Physics 2022-05-26 Yasmine Amhis , Patrick Owen
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