Amplitude analysis of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:msubsup> <mml:mi mathvariant="normal">Ξ</mml:mi> <mml:mi>c</mml:mi> <mml:mo>+</mml:mo> </mml:msubsup> <mml:mo stretchy="false">→</mml:mo> <mml:m

An amplitude analysis of the <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"> <a:msubsup> <a:mi mathvariant="normal">Ξ</a:mi> <a:mi>c</a:mi> <a:mo>+</a:mo> </a:msubsup> <a:mo stretchy="false">→</a:mo> <a:mi>p</a:mi> <a:msup> <a:mi>K</a:mi> <a:mo>−</a:mo> </a:msup> <a:msup> <a:mi>π</a:mi> <a:mo>+</a:mo> </a:msup> </a:math> decay together with a measurement of the <e:math xmlns:e="http://www.w3.org/1998/Math/MathML" display="inline"> <e:msubsup> <e:mi mathvariant="normal">Ξ</e:mi> <e:mi>c</e:mi> <e:mo>+</e:mo> </e:msubsup> </e:math> polarization vector in semileptonic beauty-hadron decays is presented. The analysis is performed using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of <h:math xmlns:h="http://www.w3.org/1998/Math/MathML" display="inline"> <h:mn>9</h:mn> <h:mtext> </h:mtext> <h:mtext> </h:mtext> <h:msup> <h:mi>fb</h:mi> <h:mrow> <h:mo>−</h:mo> <h:mn>1</h:mn> </h:mrow> </h:msup> </h:math> . An amplitude model is developed and the resonance fractions as well as two- and three-body decay parameters are reported. A sizeable <j:math xmlns:j="http://www.w3.org/1998/Math/MathML" display="inline"> <j:msubsup> <j:mi mathvariant="normal">Ξ</j:mi> <j:mi>c</j:mi> <j:mo>+</j:mo> </j:msubsup> </j:math> polarization is found. A large sensitivity of the <m:math xmlns:m="http://www.w3.org/1998/Math/MathML" display="inline"> <m:msubsup> <m:mi mathvariant="normal">Ξ</m:mi> <m:mi>c</m:mi> <m:mo>+</m:mo> </m:msubsup> <m:mo stretchy="false">→</m:mo> <m:mi>p</m:mi> <m:msup> <m:mi>K</m:mi> <m:mo>−</m:mo> </m:msup> <m:msup> <m:mi>π</m:mi> <m:mo>+</m:mo> </m:msup> </m:math> decay to the polarization is seen, making the amplitude model suitable for <q:math xmlns:q="http://www.w3.org/1998/Math/MathML" display="inline"> <q:msubsup> <q:mi mathvariant="normal">Ξ</q:mi> <q:mi>c</q:mi> <q:mo>+</q:mo> </q:msubsup> </q:math> polarization measurements in other systems.

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Physical review. D/Physical review. D.
Published
2025-11-07
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https://doi.org/10.1103/gcft-fgp1
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Particle physics theoretical and experimental studies
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article
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Amplitude analysis of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:msubsup> <mml:mi mathvariant="normal">Ξ</mml:mi> <mml:mi>c</mml:mi> <mml:mo>+</mml:mo> </mml:msubsup> <mml:mo stretchy="false">→</mml:mo> <mml:m

L. De Paula, A. Seuthe, I. Corredoira, M. M. Duras et al.
Physical review. D/Physical review. D.
Particle physics theoretical and experimental studies
article

Amplitude analysis of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:msubsup> <mml:mi mathvariant="normal">Ξ</mml:mi> <mml:mi>c</mml:mi> <mml:mo>+</mml:mo> </mml:msubsup> <mml:mo stretchy="false">→</mml:mo> <mml:m

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Stagni, Mohammadtaghi Hajheidari, V. Guliaeva, F. Reiss, M. Pepe Altarelli, A. Pellegrino, M. D. Sokoloff, Y. Luo, A. Kharisova, W. B. Qian, C. Nunez, A. Brossa Gonzalo, G. Wilkinson, M. Williams, V. Denysenko, R. Schwemmer, Hangyi Wu, T. Nanut, Lorenzo Malentacca, P. Nogga, S. Dadabaev, E. Gushchin, J. Walsh, I. Bachiller, P. Owen, M. Tobin, S. Gambetta, Georg Schwering, G. Graziani, S. Ponce, Shu Xian, S. Z. Zheng, Sabin Hashmi, F. Alessio, P. Neustroev, C. Haen, B. Pietrzyk, A. S. Boldyrev, B. Schmidt, G. Wan, Ned Francis Howarth, Qucheng Qian, Daniel Guillermo Martinez Gomez, David Vico Benet, Yuan Yuan, Esteban Felipe Molina Cardenas, Quentin Führing, B. Pietrzyk, Yingao Tang, S. A. Bouchiba, Y. Jiang, Alois Caillet, A. Washbrook, V. Dedu, S. Schmitt, Edoardo Mariani, Jonas Malte Roensch, J. Brodzicka, C. Mancuso, A. Oyanguren, T. Maltsev, L. Dai, I. Belyaev, W. Wiślicki, K. Choi, K. Petridis, M. J. Morello, J. Fu, D. Sahoo, I. Nasteva, U. De Freitas Carneiro Da Graca, C. Satriano, M. Cruz Torres, E. Cogneras, M. Kenzie, C. Vázquez Sierra, G. Raven, E. De Lucia, C. Lazzeroni, Benjamin Urbach, Riccardo Bonacci, Wojciech Gomułka, Henry James Linton, Federico Manganella, Alexia Martorell Granollers, Niclas Sommerfeld, C. Barbero Pretel, X. Liang, L. Calefice, A. Satta, Y. Z. Zhang, Y. Song, N. Bondar, M. Colonna, C. Li, Daniele Provenzano, Francesco Paciolla, Yinghao Wang
article en

Abstract

An amplitude analysis of the <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"> <a:msubsup> <a:mi mathvariant="normal">Ξ</a:mi> <a:mi>c</a:mi> <a:mo>+</a:mo> </a:msubsup> <a:mo stretchy="false">→</a:mo> <a:mi>p</a:mi> <a:msup> <a:mi>K</a:mi> <a:mo>−</a:mo> </a:msup> <a:msup> <a:mi>π</a:mi> <a:mo>+</a:mo> </a:msup> </a:math> decay together with a measurement of the <e:math xmlns:e="http://www.w3.org/1998/Math/MathML" display="inline"> <e:msubsup> <e:mi mathvariant="normal">Ξ</e:mi> <e:mi>c</e:mi> <e:mo>+</e:mo> </e:msubsup> </e:math> polarization vector in semileptonic beauty-hadron decays is presented. The analysis is performed using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of <h:math xmlns:h="http://www.w3.org/1998/Math/MathML" display="inline"> <h:mn>9</h:mn> <h:mtext> </h:mtext> <h:mtext> </h:mtext> <h:msup> <h:mi>fb</h:mi> <h:mrow> <h:mo>−</h:mo> <h:mn>1</h:mn> </h:mrow> </h:msup> </h:math> . An amplitude model is developed and the resonance fractions as well as two- and three-body decay parameters are reported. A sizeable <j:math xmlns:j="http://www.w3.org/1998/Math/MathML" display="inline"> <j:msubsup> <j:mi mathvariant="normal">Ξ</j:mi> <j:mi>c</j:mi> <j:mo>+</j:mo> </j:msubsup> </j:math> polarization is found. A large sensitivity of the <m:math xmlns:m="http://www.w3.org/1998/Math/MathML" display="inline"> <m:msubsup> <m:mi mathvariant="normal">Ξ</m:mi> <m:mi>c</m:mi> <m:mo>+</m:mo> </m:msubsup> <m:mo stretchy="false">→</m:mo> <m:mi>p</m:mi> <m:msup> <m:mi>K</m:mi> <m:mo>−</m:mo> </m:msup> <m:msup> <m:mi>π</m:mi> <m:mo>+</m:mo> </m:msup> </m:math> decay to the polarization is seen, making the amplitude model suitable for <q:math xmlns:q="http://www.w3.org/1998/Math/MathML" display="inline"> <q:msubsup> <q:mi mathvariant="normal">Ξ</q:mi> <q:mi>c</q:mi> <q:mo>+</q:mo> </q:msubsup> </q:math> polarization measurements in other systems.

Physical review. D/Physical review. D.Vol. 112(9)
University College Dublin (IE), Eötvös Loránd University (HU), Universidade da Coruña (ES), Universidade Federal do Rio de Janeiro (BR), Uppsala University (SE), Jagiellonian University (PL), Rutherford Appleton Laboratory (GB), Centre National de la Recherche Scientifique (FR), Los Alamos National Laboratory (US), University of Bonn (DE), École Polytechnique (FR), University of Liverpool (GB), Universitat de València (ES), University of Freiburg (DE), Hunan University (CN), University of Groningen (NL), South China Normal University (CN), Université Clermont Auvergne (FR), Universidade de Santiago de Compostela (ES), TU Dortmund University (DE), Peking University (CN), University of Zurich (CH), Aix-Marseille Université (FR), Heidelberg University (DE), University of Cambridge (GB), Cracow University of Technology (PL), Pontifícia Universidade Católica do Rio de Janeiro (BR), Université Paris-Saclay (FR), University of Michigan (US), Kharkiv Institute of Physics and Technology (UA), Australian Regenerative Medicine Institute (AU), University of Manchester (GB), Maastricht University (NL), University of Bristol (GB), Universidad Nacional de Colombia (CO), Wuhan University (CN), University of Warwick (GB), Sorbonne Université (FR), University of Oxford (GB), Central China Normal University (CN), Horia Hulubei National Institute for R and D in Physics and Nuclear Engineering (RO), National Institute for Subatomic Physics (NL), National Centre for Nuclear Research (PL), Istituto Nazionale di Fisica Nucleare, Sezione di Padova (IT), Institute of Nuclear Physics, Polish Academy of Sciences (PL), Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara (IT), Istituto Nazionale di Fisica Nucleare, Sezione di Bari (IT), Istituto Nazionale di Fisica Nucleare, Roma Tor Vergata (IT), FZU ‒ Institute of Physics of the Academy of Sciences of the Czech Republic (CZ), Centro Brasileiro de Pesquisas Físicas (BR), Istituto Nazionale di Fisica Nucleare, Sezione di Genova (IT), Istituto Nazionale di Fisica Nucleare, Sezione di Cagliari (IT), Istituto Nazionale di Fisica Nucleare, Sezione di Firenze (IT), Istituto Nazionale di Fisica Nucleare, Sezione di Milano (IT), Institute of High Energy Physics (CN), Istituto Nazionale di Fisica Nucleare, Sezione di Milano Bicocca (IT), Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati (IT), Institute for Nuclear Research (UA), Istituto Nazionale di Fisica Nucleare, Sezione di Bologna (IT), Laboratoire Leprince-Ringuet (FR), Max Planck Institute for Nuclear Physics (DE), Istituto Nazionale di Fisica Nucleare, Sezione di Roma I (IT), Istituto Nazionale di Fisica Nucleare, Sezione di Pisa (IT), Istituto Nazionale di Fisica Nucleare, Sezione di Perugia (IT), University of Chinese Academy of Sciences (CN), Consejo Nacional de Rectores, Laboratoire Médiations (FR), State Key Laboratory of Nuclear Physics and Technology, Imperial College London (GB), Universitat Ramon Llull (ES), Monash University (AU), University of Cincinnati (US), Massachusetts Institute of Technology (US), University of Maryland, College Park (US), European Organization for Nuclear Research (CH), AGH University of Krakow (PL), Université Savoie Mont Blanc (FR), Syracuse University (US), Universitat de Barcelona (ES), Lanzhou University (CN), University of Glasgow (GB), University of Birmingham (GB), RWTH Aachen University (DE), Ruhr University Bochum (DE), University of Edinburgh (GB), Tsinghua University (CN)
Openalex Percentile: Top 85%
Particle physics theoretical and experimental studies
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