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10. Study of the processes χcJ→ Ξ−Ξ¯Ξ¯+ and Ξ0Ξ¯Ξ¯0

Author

Ablikim, M., Achasov, M.N., Adlarson, P., Ahmed, S., Albrecht, M., Aliberti, R., Amoroso, A., An, M.R., An, Q., Bai, X.H., Bai, Y., Bakina, O., Baldini Ferroli, R., Balossino, I., Ban, Y., Begzsuren, K., Berger, N., Bertani, M., Bettoni, D., Bianchi, F., Bloms, J., Bortone, A., Boyko, I., Briere, R.A., Cai, H., Cai, X., Calcaterra, A., Cao, G.F., Cao, N., Cetin, S.A., Chang, J.F., Chang, W.L., Chelkov, G., Chen, D.Y., Chen, G., Chen, H.S., Chen, M.L., Chen, S.J., Chen, X.R., Chen, Y.B., Chen, Z. J, Cheng, W.S., Cibinetto, G., Cossio, F., Cui, X.F., Dai, H.L., Dai, X.C., Dbeyssi, A., de Boer, R.E., Dedovich, D., Deng, Z.Y., Denig, A., Denysenko, I., Destefanis, M., De Mori, F., Ding, Y., Dong, C., Dong, J., Dong, L.Y., Dong, M.Y., Dong, X., Du, S.X., Fan, Y.L., Fang, J., Fang, S.S., Fang, Y., Farinelli, R., Fava, L., Feldbauer, F., Felici, G., Feng, C.Q., Feng, J.H., Fritsch, M., Fu, C.D., Gao, Y., Gao, Y., Gao, Y.G., Garzia, I., Ge, P.T., Geng, C., Gersabeck, E.M., Gilman, A, Goetzen, K., Gong, L., Gong, W.X., Gradl, W., Greco, M., Gu, L.M., Gu, M.H., Guan, C. Y, Guo, A.Q., Guo, A.Q., Guo, L.B., Guo, R.P., Guo, Y.P., Guskov, A., Han, T.T., Han, W.Y., Hao, X.Q., Harris, F.A., He, K.L., Heinsius, F.H., Heinz, C.H., Heng, Y.K., Herold, C., Himmelreich, M., Holtmann, T., Hou, G.Y., Hou, Y.R., Hou, Z.L., Hu, H.M., Hu, J.F., Hu, T., Hu, Y., Huang, G.S., Huang, L.Q., Huang, X.T., Huang, Y.P., Huang, Z., Hussain, T., Hüsken, N, Ikegami Andersson, W., Imoehl, W., Irshad, M., Jaeger, S., Janchiv, S., Ji, Q., Ji, Q.P., Ji, X.B., Ji, X.L., Ji, Y.Y., Jiang, H.B., Jiang, X.S., Jiao, J.B., Jiao, Z., Jin, S., Jin, Y., Jing, M.Q., Johansson, T., Kalantar-Nayestanaki, N., Kang, X.S., Kappert, R., Kavatsyuk, M., Ke, B.C., Keshk, I.K., Khoukaz, A., Kiese, P., Kiuchi, R., Kliemt, R., Koch, L., Kolcu, O.B., Kopf, B., Kuemmel, M., Kuessner, M., Kupsc, A., Kurth, M.G., Kühn, W., Lane, J.J., Lange, J.S., Larin, P., Lavania, A., Lavezzi, L., Lei, Z.H., Leithoff, H., Lellmann, M., Lenz, T., Li, C., Li, C.H., Li, Cheng, Li, D.M., Li, F., Li, G., Li, H., Li, H., Li, H.B., Li, H.J., Li, H.N., Li, J.L., Li, J.Q., Li, J.S., Li, Ke, Li, L.K., Li, Lei, Li, P.R., Li, S.Y., Li, W.D., Li, W.G., Li, X.H., Li, X.L., Li, Xiaoyu, Li, Z.Y., Liang, H., Liang, H., Liang, H., Liang, Y.F., Liang, Y.T., Liao, G.R., Liao, L.Z., Libby, J., Lin, C.X., Lin, D.X., Lin, T., Liu, B.J., Liu, C.X., Liu, D., Liu, F.H., Liu, Fang, Liu, Feng, Liu, G.M., Liu, H.M., Liu, Huanhuan, Liu, Huihui, Liu, J.B., Liu, J.L., Liu, J.Y., Liu, K., Liu, K.Y., Liu, Ke, Liu, L., Liu, M.H., Liu, P.L., Liu, Q., Liu, Q., Liu, S.B., Liu, T., Liu, W.M., Liu, X., Liu, Y., Liu, Y.B., Liu, Z.A., Liu, Z.Q., Lou, X.C., Lu, F.X., Lu, H.J., Lu, J.D., Lu, J.G., Lu, X.L., Lu, Y., Lu, Y.P., Luo, C.L., Luo, M.X., Luo, P.W., Luo, T., Luo, X.L., Lyu, X.R., Ma, F.C., Ma, H.L., Ma, L.L., Ma, M.M., Ma, Q.M., Ma, R.Q., Ma, R.T., Ma, X.X., Ma, X.Y., Maas, F.E., Maggiora, M., Maldaner, S., Malde, S., Malik, Q.A., Mangoni, A., Mao, Y.J., Mao, Z.P., Marcello, S., Meng, Z.X., Messchendorp, J.G., Mezzadri, G., Min, T.J., Mitchell, R.E., Mo, X.H., Muchnoi, N. Yu., Muramatsu, H., Nakhoul, S., Nefedov, Y., Nerling, F., Nikolaev, I.B., Ning, Z., Nisar, S., Ouyang, Q., Pacetti, S., Pan, X., Pan, Y., Pathak, A., Pathak, A., Patteri, P., Pelizaeus, M., Peng, H.P., Peters, K., Pettersson, J., Ping, J.L., Ping, R.G., Pogodin, S., Poling, R., Prasad, V., Qi, H., Qi, H.R., Qi, M., Qi, T.Y., Qian, S., Qian, W.B., Qian, Z., Qiao, C.F., Qin, J.J., Qin, L.Q., Qin, X.P., Qin, X.S., Qin, Z.H., Qiu, J.F., Qu, S.Q., Rashid, K.H., Ravindran, K., Redmer, C.F., Rivetti, A., Rodin, V., Rolo, M., Rong, G., Rosner, Ch., Rump, M., Sang, H.S., Sarantsev, A., Schelhaas, Y., Schnier, C., Schoenning, K., Scodeggio, M., Shan, W., Shan, X.Y., Shangguan, J.F., Shao, M., Shen, C.P., Shen, H.F., Shen, X.Y., Shi, H.C., Shi, R.S., Shi, X., Shi, X. D, Song, J.J., Song, J.J., Song, W.M., Song, Y.X., Sosio, S., Spataro, S., Su, K.X., Su, P.P., Sui, F.F., Sun, G.X., Sun, H.K., Sun, J.F., Sun, L., Sun, S.S., Sun, T., Sun, W.Y., Sun, X, Sun, Y.J., Sun, Y.Z., Sun, Z.T., Tan, Y.H., Tan, Y.X., Tang, C.J., Tang, G.Y., Tang, J., Teng, J.X., Thoren, V., Tian, W.H., Tian, Y.T., Uman, I., Wang, B., Wang, C.W., Wang, D.Y., Wang, H.J., Wang, H.P., Wang, K., Wang, L.L., Wang, M., Wang, M.Z., Wang, Meng, Wang, S., Wang, W., Wang, W.H., Wang, W.P., Wang, X., Wang, X.F., Wang, X.L., Wang, Y., Wang, Y.D., Wang, Y.F., Wang, Y.Q., Wang, Y.Y., Wang, Z., Wang, Z.Y., Wang, Ziyi, Wang, Zongyuan, Wei, D.H., Weidner, F., Wen, S.P., White, D.J., Wiedner, U., Wilkinson, G., Wolke, M., Wollenberg, L., Wu, J.F., Wu, L.H., Wu, L.J., Wu, X., Wu, X.H., Wu, Z., Xia, L., Xiao, H., Xiao, S.Y., Xiao, Z.J., Xie, X.H., Xie, Y.G., Xie, Y.H., Xing, T.Y., Xu, C.J., Xu, G.F., Xu, Q.J., Xu, W., Xu, X.P., Xu, Y.C., Yan, F., Yan, L., Yan, W.B., Yan, W.C., Yang, H.J., Yang, H.X., Yang, L., Yang, S.L., Yang, Y.X., Yang, Yifan, Yang, Zhi, Ye, M., Ye, M.H., Yin, J.H., You, Z.Y., Yu, B.X., Yu, C.X., Yu, G., Yu, J.S., Yu, T., Yuan, C.Z., Yuan, L., Yuan, X.Q., Yuan, Y., Yuan, Z.Y., Yue, C.X., Zafar, A.A., Zeng, X., Zeng, Y., Zhang, A.Q., Zhang, B.X., Zhang, Guangyi, Zhang, H., Zhang, H.H., Zhang, H.H., Zhang, H.Y., Zhang, J.J., Zhang, J.L., Zhang, J.Q., Zhang, J.W., Zhang, J.Y., Zhang, J.Z., Zhang, Jianyu, Zhang, Jiawei, Zhang, L.M., Zhang, L.Q., Zhang, Lei, Zhang, S., Zhang, S.F., Zhang, Shulei, Zhang, X.D., Zhang, X.Y., Zhang, Y., Zhang, Y.T., Zhang, Y.H., Zhang, Yan, Zhang, Yao, Zhang, Z.Y., Zhao, G., Zhao, J., Zhao, J.Y., Zhao, J.Z., Zhao, Lei, Zhao, Ling, Zhao, M.G., Zhao, Q., Zhao, S.J., Zhao, Y.B., Zhao, Y.X., Zhao, Z.G., Zhemchugov, A., Zheng, B., Zheng, J.P., Zheng, Y.H., Zhong, B., Zhong, C., Zhou, L.P., Zhou, Q., Zhou, X., Zhou, X.K., Zhou, X.R., Zhou, X.Y., Zhu, A.N., Zhu, J., Zhu, K., Zhu, K.J., Zhu, S.H., Zhu, T.J., Zhu, W.J., Zhu, W.J., Zhu, Y.C., Zhu, Z.A., Zou, B.S., and Zou, J.H.

Published
2022
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11. The changing strength of carbonate silt: parallel penetrometer and foundation tests with cyclic loading and reconsolidation periods

Author

Zhou, Z., White, D.J., and O'Loughlin, C.D.

Subjects
Silt -- Mechanical properties, Carbonates -- Mechanical properties, Strength of materials -- Observations, Earth sciences
Abstract

This paper describes a centrifuge study using novel penetrometer tests (T-bar and piezoball) and model foundation tests to explore through-life changes in the strength of a reconstituted natural carbonate silt. The test procedures include episodic cyclic loading, which involves intervals of pore pressure dissipation between cyclic packets. These loads and the associated remoulding and reconsolidation cause significant changes in the soil strength and foundation capacity. Soil strength changes from penetrometer tests differed by a factor of 15 from the fully remoulded strength to a limiting upper value after long-term cyclic loading and reconsolidation. For the model foundation tests, the foundation capacity of a surface foundation and a deep-embedded plate were studied. The soil strength interpreted from the measured foundation capacity varied by a factor of up to three due to episodes of loading and consolidation, with an associated order of magnitude increase in the coefficient of consolidation. The results show a remarkable rise in soil strength over the loading events and provide a potential link between changes in soil strength observed in penetrometer tests and the capacity of foundations, allowing the effects of cyclic loading and consolidation to be predicted. Key words: carbonate silt, penetrometers, model foundation, changing soil strength, foundation capacity, cyclic loading and reconsolidation. Le present article porte sur une etude en centrifugeuse a l'aide de nouveaux essais au penetrometre (barre en T et piezo ball) et d'essais de fondation sur modele afin de decouvrir les changements de la resistance d'un limon carbonate naturel reconstitue tout au long de sa duree de vie. Parmi les procedures d'essai, on retrouve la charge cyclique episodique, c'est-a-dire des intervalles de dissipation de la pression interstitielle entre les paquets cycliques. Ces charges, ainsi que le remodelage et la reconsolidation connexes, provoquent des variations importantes de la resistance du sol et de la capacite de la fondation. Les variations de la resistance du sol obtenues par les essais au penetrometre different par un facteur de 15 de la resistance du sol entierement remoule a une valeur maximale limite apres une charge cyclique et un remembrement a long terme. En ce qui concerne les essais de fondation sur modele, on a etudie la capacite de fondation d'une fondation de surface et d'une plaque profondement encastree. Selon l'interpretation de la resistance du sol basant sur la capacite mesuree de la fondation, la variation de la resistance du sol pouvait atteindre un facteur de trois en raison d'episodes de chargement et de consolidation, ce qui a entraine une hausse du coefficient de consolidation d'un ordre de grandeur correspondant. Par ailleurs, ces resultats revelent une hausse considerable de la resistance du sol au cours des episodes de charge et fournissent un lien potentiel entre les changements de resistance du sol releves dans les essais au penetrometre et la capacite des fondations, ce qui permet de prevoir les consequences des charges cycliques et de la consolidation. [Traduit par la Redaction] Mots-cles : limon carbonate, penetrometres, fondation sur modele, variation de la resistance du sol, capacite de fondation, chargement cyclique et reconsolidation., 1. Introduction Many offshore foundations are subjected to intermittent episodes of cyclic loading, or remoulding, and reconsolidation during their installation and long-term operation. The cyclic loading and reconsolidation processes cause [...]

Published
2020
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12. Shallow penetrometer tests: theoretical and experimental modelling of the rotation stage

Author

Schneider, M.A., Stanier, S.A., White, D.J., and Randolph, M.F.

Subjects
Advertising campaigns -- Analysis -- Models, Clay minerals -- Models -- Analysis, Clay -- Models -- Analysis, Sediments (Geology) -- Models -- Analysis, Earth sciences
Abstract

Shallow penetrometers are a new type of device that measures the properties of surficial offshore sediments via multi-phase tests involving penetration, dissipation, and rotation stages. In fine-grained soils such as silts and clays, these testing stages yield properties relevant to subsea pipeline and shallow foundation design; namely, undrained strength, consolidation, and interface friction. This paper describes the fundamentals of the rotation stage, including models required for data interpretation, encompassing both a total and an effective stress framework. Additionally, new relationships to evaluate the pore pressure scaling factor, which is a key interpretation parameter required to convert discrete measurements of pore pressure on the penetrometers to an average pore pressure over the contact area, are developed based on large-deformation finite element simulations. Results from an experimental campaign using kaolin clay samples are presented, illustrating the potential of the devices to rapidly and repeatably measure interface friction properties of fine-grained sediments offshore. The results compare well with comparative measures obtained from shear box tests conducted at similarly low effective stress levels. Recommendations regarding future in situ applications are given at end of the paper. Key words: shallow penetrometer, offshore engineering, in situ testing, axial sliding resistance, pipe-soil interaction. Les penetrometres peu profonds constituent un nouveau type d'appareil qui mesure les proprietes des sediments superficiels en surface au moyen d'essais multiphases impliquant des etapes de penetration, de dissipation et de rotation. Dans les sols a grains fins tels que les limons et les argiles, ces etapes d'essai donnent des proprietes de resistance, de consolidation et de frottement d'interface non drainees pertinentes pour les pipelines sous-marins et les fondations superficielles. Ce document decrit les principes fondamentaux de l'etape de la rotation, y compris les modeles necessaires a l'interpretation des donnees, englobant a la fois un cadre de contrainte total et un cadre de contrainte efficace. De plus, de nouvelles relations pour evaluer le facteur d'echelle de pression interstitielle, parametre cle d'interpretation requis pour convertir des mesures discretes de la pression interstitielle sur les penetrometres en une pression interstitielle moyenne sur la surface de contact, ont ete developpees a partir de simulations a elements finis a deformations importantes. Les resultats d'une campagne experimentale utilisant des echantillons d'argile de kaolin sont presentes, illustrant le potentiel des dispositifs pour mesurer rapidement et de maniere repetee les proprietes de frottement d'interface de sediments a grain fin au large des cotes. Les resultats se comparent bien avec les mesures comparatives obtenues a partir d'essais en boite de cisaillement conduits a des niveaux de contrainte effective similaires. Des recommandations concernant les futures applications in situ sont donnees a la fin de l'article. [Traduit par la Redaction] Mots-cles : penetrometre peu profond, ingenierie offshore, essais in situ, resistance au glissement axial, interaction pipe-sol., Introduction Accurate characterization of near-surface soil properties is increasingly important for the development of offshore subsea infrastructure, such as seabed pipelines, cables, and shallow foundations. The shear strength profile of [...]

Published
2020
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13. Shallow penetrometer tests: theoretical and experimental modelling of penetration and dissipation stages

Author

Schneider, M.A., Stanier, S.A., White, D.J., and Randolph, M.F.

Subjects
Clay -- Models, Sediments (Geology) -- Models, Earth sciences, University of Western Australia
Abstract

Shallow penetrometers are devices that penetrate into and measure the properties of surficial offshore sediments via multi-phase tests involving penetration, dissipation, and rotation stages. In fine-grained soils such as silts and clays, these testing stages yield undrained strength, consolidation, and friction properties relevant to subsea pipeline and shallow foundation design. This paper describes toroid and hemiball devices of the scale for use in box-core samples and associated interpretation methods for the penetration and dissipation stages. The aim of the paper is to provide all tools needed to design and interpret these tests. New large-deformation finite element (LDFE) dissipation solutions are presented, which can be used for back-analysis of the dissipation stage. Results of an extensive laboratory proof testing exercise in kaolin clay, for both the hemiball and toroid penetrometers, are also reported. These results highlight the potential of the two devices to quickly and economically assess strength and consolidation characteristics of fine-grained sediments in box-core samples recovered to the deck of a site investigation vessel. Key words: shallow penetrometer, offshore engineering, in situ testing, undrained penetration, dissipation. Les penetrometres peu profonds sont des dispositifs qui penetrent dans les sediments superficiels en mer et mesurent leurs proprietes au moyen d'essais multiphases comportant des etapes de penetration, de dissipation et de rotation. Dans les sols a grain fin tels que les limons et les argiles, ces etapes d'essai donnent des proprietes de resistance, de consolidation et de frottement non drainees pertinentes pour la conception des conduites sous-marines et des fondations peu profondes. Cet article decrit les dispositifs toroidaux et hemiballins de l'echelle a utiliser dans les echantillons de carottes de forage et les methodes d'interpretation connexes pour les etapes de penetration et de dissipation. L'objectif de cet article est de fournir tous les outils necessaires a la conception et a l'interpretation de ces essais. De nouvelles solutions de dissipation par elements finis a grande deformation (<< LDFE >>) sont presentees, qui peuvent etre utilisees pour l'analyse retrospective de l'etape de dissipation. Les resultats d'un vaste exercice d'essais en laboratoire dans l'argile kaolinique, tant pour l'hemiball que pour le penetrometre toroidal, sont egalement presentes. Ces resultats mettent en evidence le potentiel des deux dispositifs pour evaluer rapidement et economiquement la resistance et les caracteristiques de consolidation des sediments a grain fin dans des carottes de forage recuperees sur le pont d'un navire de recherche sur le site. [Traduit par la Redaction] Mots-cles : penetrometre peu profond, ingenierie en mer, essais in situ, penetration non drainee, dissipation., Introduction Many offshore structures--such as pipelines and shallow foundations--rest on soft surficial marine clays. Reliable characterization of these top soil layers (often only half a metre) is key to developing [...]

Published
2020
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18. Search for invisible decays of a dark photon using e+e− annihilation data at BESIII

Author

Ablikim, M., primary, Achasov, M.N., additional, Adlarson, P., additional, Albrecht, M., additional, Aliberti, R., additional, Amoroso, A., additional, An, M.R., additional, An, Q., additional, Bai, X.H., additional, Bai, Y., additional, Bakina, O., additional, Baldini Ferroli, R., additional, Balossino, I., additional, Ban, Y., additional, Batozskaya, V., additional, Becker, D., additional, Begzsuren, K., additional, Berger, N., additional, Bertani, M., additional, Bettoni, D., additional, Bianchi, F., additional, Bloms, J., additional, Bortone, A., additional, Boyko, I., additional, Briere, R.A., additional, Brueggemann, A., additional, Cai, H., additional, Cai, X., additional, Calcaterra, A., additional, Cao, G.F., additional, Cao, N., additional, Cetin, S.A., additional, Chang, J.F., additional, Chang, W.L., additional, Chelkov, G., additional, Chen, C., additional, Chen, Chao, additional, Chen, G., additional, Chen, H.S., additional, Chen, M.L., additional, Chen, S.J., additional, Chen, S.M., additional, Chen, T., additional, Chen, X.R., additional, Chen, X.T., additional, Chen, Y.B., additional, Chen, Z.J., additional, Cheng, W.S., additional, Choi, S.K., additional, Chu, X., additional, Cibinetto, G., additional, Coen, S.C., additional, Cossio, F., additional, Cui, J.J., additional, Dai, H.L., additional, Dai, J.P., additional, Dbeyssi, A., additional, de Boer, R.E., additional, Dedovich, D., additional, Deng, Z.Y., additional, Denig, A., additional, Denysenko, I., additional, Destefanis, M., additional, De Mori, F., additional, Ding, Y., additional, Dong, J., additional, Dong, L.Y., additional, Dong, M.Y., additional, Dong, X., additional, Du, S.X., additional, Egorov, P., additional, Fan, Y.L., additional, Fang, J., additional, Fang, S.S., additional, Fang, W.X., additional, Fang, Y., additional, Farinelli, R., additional, Fava, L., additional, Feldbauer, F., additional, Felici, G., additional, Feng, C.Q., additional, Feng, J.H., additional, Fischer, K., additional, Fritsch, M., additional, Fritzsch, C., additional, Fu, C.D., additional, Gao, H., additional, Gao, Y.N., additional, Gao, Yang, additional, Garbolino, S., additional, Garzia, I., additional, Ge, P.T., additional, Ge, Z.W., additional, Geng, C., additional, Gersabeck, E.M., additional, Gilman, A., additional, Goetzen, K., additional, Gong, L., additional, Gong, W.X., additional, Gradl, W., additional, Greco, M., additional, Gu, L.M., additional, Gu, M.H., additional, Gu, Y.T., additional, Guan, C.Y., additional, Guo, A.Q., additional, Guo, L.B., additional, Guo, R.P., additional, Guo, Y.P., additional, Guskov, A., additional, Han, T.T., additional, Han, W.Y., additional, Hao, X.Q., additional, Harris, F.A., additional, He, K.K., additional, He, K.L., additional, Heinsius, F.H., additional, Heinz, C.H., additional, Heng, Y.K., additional, Herold, C., additional, Himmelreich, M., additional, Holtmann, T., additional, Hou, G.Y., additional, Hou, Y.R., additional, Hou, Z.L., additional, Hu, H.M., additional, Hu, J.F., additional, Hu, T., additional, Hu, Y., additional, Huang, G.S., additional, Huang, K.X., additional, Huang, L.Q., additional, Huang, X.T., additional, Huang, Y.P., additional, Hussain, T., additional, Hüsken, N., additional, Imoehl, W., additional, Irshad, M., additional, Jackson, J., additional, Jaeger, S., additional, Janchiv, S., additional, Jang, E., additional, Jeong, J.H., additional, Ji, Q., additional, Ji, Q.P., additional, Ji, X.B., additional, Ji, X.L., additional, Ji, Y.Y., additional, Jia, Z.K., additional, Jiang, H.B., additional, Jiang, S.S., additional, Jiang, X.S., additional, Jiang, Y., additional, Jiao, J.B., additional, Jiao, Z., additional, Jin, S., additional, Jin, Y., additional, Jing, M.Q., additional, Johansson, T., additional, Kalantar-Nayestanaki, N., additional, Kang, X.S., additional, Kappert, R., additional, Kavatsyuk, M., additional, Ke, B.C., additional, Keshk, I.K., additional, Khoukaz, A., additional, Kiuchi, R., additional, Kliemt, R., additional, Koch, L., additional, Kolcu, O.B., additional, Kopf, B., additional, Kuemmel, M., additional, Kuessner, M., additional, Kupsc, A., additional, Kühn, W., additional, Lane, J.J., additional, Lange, J.S., additional, Larin, P., additional, Lavania, A., additional, Lavezzi, L., additional, Lei, T.T., additional, Lei, Z.H., additional, Leithoff, H., additional, Lellmann, M., additional, Lenz, T., additional, Li, C., additional, Li, C.H., additional, Li, Cheng, additional, Li, D.M., additional, Li, F., additional, Li, G., additional, Li, H., additional, Li, H.B., additional, Li, H.J., additional, Li, H.N., additional, Li, J.Q., additional, Li, J.S., additional, Li, J.W., additional, Li, Ke, additional, Li, L.J., additional, Li, L.K., additional, Li, Lei, additional, Li, M.H., additional, Li, P.R., additional, Li, S.X., additional, Li, S.Y., additional, Li, T., additional, Li, W.D., additional, Li, W.G., additional, Li, X.H., additional, Li, X.L., additional, Li, Xiaoyu, additional, Li, Z.X., additional, Li, Z.Y., additional, Liang, H., additional, Liang, Y.F., additional, Liang, Y.T., additional, Liao, G.R., additional, Liao, L.Z., additional, Libby, J., additional, Limphirat, A., additional, Lin, D.X., additional, Lin, T., additional, Liu, B.J., additional, Liu, C.X., additional, Liu, D., additional, Liu, F.H., additional, Liu, Fang, additional, Liu, Feng, additional, Liu, G.M., additional, Liu, H., additional, Liu, H.B., additional, Liu, H.M., additional, Liu, Huanhuan, additional, Liu, Huihui, additional, Liu, J.B., additional, Liu, J.L., additional, Liu, J.Y., additional, Liu, K., additional, Liu, K.Y., additional, Liu, Ke, additional, Liu, L., additional, Liu, Lu, additional, Liu, M.H., additional, Liu, P.L., additional, Liu, Q., additional, Liu, S.B., additional, Liu, T., additional, Liu, W.K., additional, Liu, W.M., additional, Liu, X., additional, Liu, Y., additional, Liu, Y.B., additional, Liu, Z.A., additional, Liu, Z.Q., additional, Lou, X.C., additional, Lu, F.X., additional, Lu, H.J., additional, Lu, J.G., additional, Lu, X.L., additional, Lu, Y., additional, Lu, Y.P., additional, Lu, Z.H., additional, Luo, C.L., additional, Luo, M.X., additional, Luo, T., additional, Luo, X.L., additional, Lyu, X.R., additional, Lyu, Y.F., additional, Ma, F.C., additional, Ma, H.L., additional, Ma, L.L., additional, Ma, M.M., additional, Ma, Q.M., additional, Ma, R.Q., additional, Ma, R.T., additional, Ma, X.Y., additional, Ma, Y., additional, Maas, F.E., additional, Maggiora, M., additional, Maldaner, S., additional, Malde, S., additional, Malik, Q.A., additional, Mangoni, A., additional, Mao, Y.J., additional, Mao, Z.P., additional, Marcello, S., additional, Meng, Z.X., additional, Messchendorp, J.G., additional, Mezzadri, G., additional, Miao, H., additional, Min, T.J., additional, Mitchell, R.E., additional, Mo, X.H., additional, Muchnoi, N.Yu., additional, Nefedov, Y., additional, Nerling, F., additional, 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Published
2023
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21. Search for $\it{CP}$ violation in $D_{(s)}^{+}\rightarrow K^{-}K^{+}K^{+}$ decays

Author

Aaij, R., Abdelmotteleb, A.S. W., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adeva, B., Adinolfi, M., Adlarson, P., Afsharnia, H., Agapopoulou, C., Aidala, C.A., Ajaltouni, Z., Akar, S., Akiba, K., Albicocco, P., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Aliouche, Z., Alvarez Cartelle, P., Amalric, R., Amato, S., Amey, J.L., Amhis, Y., An, L., Anderlini, L., Andersson, M., Andreianov, A., Andreotti, M., Andreou, D., Ao, D., Archilli, F., Artamonov, A., Artuso, M., Aslanides, E., Atzeni, M., Audurier, B., Bachiller Perea, I.B., Bachmann, S., Bachmayer, M., Back, J.J., Bailly-reyre, A., Baladron Rodriguez, P., Balagura, V., Baldini, W., Baptista de Souza Leite, J., Barbetti, M., Barlow, R.J., Barsuk, S., Barter, W., Bartolini, M., Baryshnikov, F., Basels, J.M., Bassi, G., Batsukh, B., Battig, A., Bay, A., Beck, A., Becker, M., Bedeschi, F., Bediaga, I.B., Beiter, A., Belin, S., Bellee, V., Belous, K., Belov, I., Belyaev, I., Benane, G., Bencivenni, G., Ben-Haim, E., Berezhnoy, A., Bernet, R., Bernet Andres, S., Berninghoff, D., Bernstein, H.C., Bertella, C., Bertolin, A., Betancourt, C., Betti, F., Bezshyiko, Ia., Bhom, J., Bian, L., Bieker, M.S., Biesuz, N.V., Billoir, P., Biolchini, A., Birch, M., Bishop, F.C. R., Bitadze, A., Bizzeti, A., Blago, M.P., Blake, T., Blanc, F., Blank, J.E., Blusk, S., Bobulska, D., Boelhauve, J.A., Boente Garcia, O., Boettcher, T., Boldyrev, A., Bolognani, C.S., Bolzonella, R., Bondar, N., Borgato, F., Borghi, S., Borsato, M., Borsuk, J.T., Bouchiba, S.A., Bowcock, T.J. V., Boyer, A., Bozzi, C., Bradley, M.J., Braun, S., Brea Rodriguez, A., Brodzicka, J., Brossa Gonzalo, A., Brown, J., Brundu, D., Buonaura, A., Buonincontri, L., Burke, A.T., Burr, C., Bursche, A., Butkevich, A., Butter, J.S., Buytaert, J., Byczynski, W., Cadeddu, S., Cai, H., Calabrese, R., Calefice, L., Cali, S., Calvi, M., Calvo Gomez, M., Campana, P., Campora Perez, D.H., Campoverde Quezada, A.F., Capelli, S., Capriotti, L., Carbone, A., Cardinale, R., Cardini, A., Carniti, P., Carus, L., Casais Vidal, A., Caspary, R., Casse, G., Cattaneo, M., Cavallero, G., Cavallini, V., Celani, S., Cerasoli, J., Cervenkov, D., Chadwick, A.J., Chahrour, I., Chapman, M.G., Charles, M., Charpentier, Ph., Chavez Barajas, C.A., Chefdeville, M., Chen, C., Chen, S., Chernov, A., Chernyshenko, S., Chobanova, V., Cholak, S., Chrzaszcz, M., Chubykin, A., Chulikov, V., Ciambrone, P., Cicala, M.F., Cid Vidal, X., Ciezarek, G., Cifra, P., Ciullo, G., Clarke, P.E. 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Subjects
High Energy Physics - Experiment (hep-ex), FOS: Physical sciences, Particle Physics - Experiment, High Energy Physics - Experiment
Abstract

A search for direct $\it{CP}$ violation in the Cabibbo-suppressed decay $D_{s}^{+}\rightarrow K^{-}K^{+}K^{+}$ and in the doubly Cabibbo-suppressed decay $D^{+}\rightarrow K^{-}K^{+}K^{+}$ is reported. The analysis is performed with data collected by the LHCb experiment in proton-proton collisions at a centre-of-mass energy of 13 TeV corresponding to an integrated luminosity of 5.6 $\textrm{fb}^{-1}$. The search is conducted by comparing the $D^+_{(s)}$ and $D^-_{(s)}$ Dalitz-plot distributions through a model-independent binned technique, based on fits to the $K^{-}K^{+}K^{+}$ invariant-mass distributions, with a total of 0.97 (1.27) million $D_{s}^{+}$ ($D^{+}$) signal candidates. The results are given as $p$-values for the hypothesis of $\it{CP}$ conservation and are found to be 13.3% for the $D_{s}^{+}\rightarrow K^{-}K^{+}K^{+}$ decay and 31.6% for the $D^{+}\rightarrow K^{-}K^{+}K^{+}$ decay. No evidence for $\it{CP}$ violation is observed in these decays., All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-042.html (LHCb public pages)

Published
2023

22. Open charm production and asymmetry in pNe collisions at $\sqrt{s_{\scriptscriptstyle {\textrm{NN}}}} = 68.5\,\text {Ge\hspace{-1.00006pt}V}$

Author

Aaij, R, Abdelmotteleb, A.S. 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D, Thomson, K.A, Tilquin, H, Tisserand, V, T’jampens, S, Tobin, M, Tomassetti, L, Tonani, G, Tong, X, Torres Machado, D, Tou, D.Y, Trilov, S.M, Trippl, C, Tuci, G, Tully, A, Tuning, N, Ukleja, A, Unverzagt, D.J, Usachov, A, Ustyuzhanin, A, Uwer, U, Vagner, A, Vagnoni, V, Valassi, A, Valenti, G, Valls Canudas, N, van Beuzekom, M, van Dijk, M, van Hecke, H, van Herwijnen, E, van Hulse, C.B, van Veghel, M, Vazquez Gomez, R, Vazquez Regueiro, P, Vázquez Sierra, C, Vecchi, S, Velthuis, J.J, Veltri, M, Venkateswaran, A, Veronesi, M, Vesterinen, M, Vieira, D, Vieites Diaz, M, Vilasis-Cardona, X, Vilella Figueras, E, Villa, A, Vincent, P, Volle, F.C, Vom Bruch, D, Vorobyev, A, Vorobyev, V, Voropaev, N, Vos, K, Vrahas, C, Waldi, R, Walsh, J, Wan, G, Wang, C, Wang, G, Wang, J, Wang, M, Wang, R, Wang, X, Wang, Y, Wang, Z, Ward, J.A, Watson, N.K, Websdale, D, Wei, Y, Weisser, C, Westhenry, B.D. C, White, D.J, Whitehead, M, Wiederhold, A.R, Wiedner, D, Wilkinson, G, Wilkinson, M.K, Williams, I, Williams, M, Williams, M.R. J, Williams, R, Wilson, F.F, Wislicki, W, Witek, M, Witola, L, Wong, C.P, Wormser, G, Wotton, S.A, Wu, H, Wu, J, Wyllie, K, Xiang, Z, Xiao, D, Xie, Y, Xu, A, Xu, J, Xu, L, Xu, M, Xu, Q, Xu, Z, Yang, D, Yang, S, Yang, X, Yang, Y, Yang, Z, Yeomans, L.E, Yeroshenko, V, Yeung, H, Yin, H, Yu, J, Yuan, X, Zaffaroni, E, Zavertyaev, M, Zdybal, M, Zenaiev, O, Zeng, M, Zhang, C, Zhang, D, Zhang, L, Zhang, S, Zhang, Y, Zharkova, A, Zhelezov, A, Zheng, Y, Zhou, T, Zhou, X, Zhou, Y, Zhovkovska, V, Zhu, X, Zhu, Z, Zhukov, V, Zou, Q, Zucchelli, S, Zuliani, D, Zunica, G, Laboratoire de Physique de Clermont (LPC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), and LHCb

Subjects
production, asymmetry, at rest, rapidity, star, nucleon nucleon, charm, production, nucleon, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], neon, meson, production, LHC-B, statistical, recombination
Abstract

International audience; A measurement of ${{D}} ^0$ meson production by the LHCb experiment in its fixed-target configuration is presented. The production of ${{D}} ^0$ mesons is studied with a beam of 2.5 $\,\text {Te\hspace{-1.00006pt}V}$ protons colliding on a gaseous neon target at rest, corresponding to a nucleon–nucleon centre-of-mass energy of $\sqrt{s_{\scriptscriptstyle \text {NN}}} = 68.5\,\,\text {Ge\hspace{-1.00006pt}V} $. The sum of the ${{D}} ^0$ and ${\hspace{0.0pt}\overline{\hspace{0.0pt}{D}}} {}^0$ production cross-section in $p\text {Ne}$ collisions in the centre-of-mass rapidity range $y^{\star }\in [-2.29, 0]$ is found to be $\sigma _{D^{0}}^{y^\star \in [-2.29, 0]} = 48.2 \pm 0.3 \pm 4.5 \,\upmu \text {b}/\text {nucleon}$ where the first uncertainty is statistical and the second is systematic. The ${{{D}} ^0}-{{\hspace{0.0pt}\overline{\hspace{0.0pt}{D}}} {}^0} $ production asymmetry is also evaluated and suggests a trend towards negative values at large negative $y^{\star }$. The considered models do not account precisely for all the features observed in the LHCb data, but theoretical predictions including 1$\%$ intrinsic charm and 10$\%$ recombination contributions better describe the data than the other models considered.

Published
2023

23. A study of $C\!P$ violation in the decays ${{B} ^\pm } \rightarrow [{{K} ^+} {{K} ^-} {{\uppi } ^+} {{\uppi } ^-} ]_{D} h^{\pm }$ ($h = K, \pi $) and ${{B} ^\pm } \rightarrow [{{\uppi } ^+} {{\uppi } ^-} {{\uppi } ^+} {{\uppi } ^-} ]_{D} h^{\pm }$

Author

Aaij, R, Abdelmotteleb, A.S. 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P, Solomin, A, Solovev, A, Solovyev, I, Song, R, de Almeida, F.L. Souza, de Paula, B.Souza, Spaan, B, Norella, E.Spadaro, Spedicato, E, Spiridenkov, E, Spradlin, P, Sriskaran, V, Stagni, F, Stahl, M, Stahl, S, Stanislaus, S, Stein, E.N, Steinkamp, O, Stenyakin, O, Stevens, H, Stone, S, Strekalina, D, Su, Y.S, Suljik, F, Sun, J, Sun, L, Sun, Y, Svihra, P, Swallow, P.N, Swientek, K, Szabelski, A, Szumlak, T, Szymanski, M, Tan, Y, Taneja, S, Tat, M.D, Terentev, A, Teubert, F, Thomas, E, Thompson, D.J. D, Thomson, K.A, Tilquin, H, Tisserand, V, T’jampens, S, Tobin, M, Tomassetti, L, Tonani, G, Tong, X, Machado, D.Torres, Tou, D.Y, Trilov, S.M, Trippl, C, Tuci, G, Tuning, N, Ukleja, A, Unverzagt, D.J, Usachov, A, Ustyuzhanin, A, Uwer, U, Vagner, A, Vagnoni, V, Valassi, A, Valenti, G, Canudas, N.Valls, Dijk, M.Van, Hecke, H.Van, van Herwijnen, E, van Hulse, C.B, van Veghel, M, Gomez, R.Vazquez, Regueiro, P.Vazquez, Sierra, C.Vázquez, Vecchi, S, Velthuis, J.J, Veltri, M, Venkateswaran, A, Veronesi, M, Vesterinen, M, Vieira, D, Diaz, M.Vieites, Vilasis-Cardona, X, Figueras, E.Vilella, Villa, A, Vincent, P, Volle, F.C, Vom Bruch, D, Vorobyev, A, Vorobyev, V, Voropaev, N, Vos, K, Vrahas, C, Walsh, J, Wan, G, Wang, C, Wang, G, Wang, J, Wang, M, Wang, R, Wang, X, Wang, Y, Wang, Z, Ward, J.A, Watson, N.K, Websdale, D, Wei, Y, Westhenry, B.D. C, White, D.J, Whitehead, M, Wiederhold, A.R, Wiedner, D, Wilkinson, G, Wilkinson, M.K, Williams, I, Williams, M, Williams, M.R. J, Williams, R, Wilson, F.F, Wislicki, W, Witek, M, Witola, L, Wong, C.P, Wormser, G, Wotton, S.A, Wu, H, Wu, J, Wyllie, K, Xiang, Z, Xie, Y, Xu, A, Xu, J, Xu, L, Xu, M, Xu, Q, Xu, Z, Yang, D, Yang, S, Yang, X, Yang, Y, Yang, Z, Yeomans, L.E, Yeroshenko, V, Yeung, H, Yin, H, Yu, J, Yuan, X, Zaffaroni, E, Zavertyaev, M, Zdybal, M, Zeng, M, Zhang, C, Zhang, D, Zhang, L, Zhang, S, Zhang, Y, Zhao, Y, Zharkova, A, Zhelezov, A, Zheng, Y, Zhou, T, Zhou, X, Zhou, Y, Zhovkovska, V, Zhu, X, Zhu, Z, Zhukov, V, Zou, Q, Zucchelli, S, Zuliani, D, Zunica, G, Laboratoire de Physique de Clermont (LPC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), and LHCb

Subjects
p p: scattering, data analysis method, +D0+K%2B%22">B+ --> D0 K+, +D0+K%22">B+ --> D0 K, 13000 GeV-cms, B: hadronic decay, D0: hadronic decay, phase space, CP: violation, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 8000 GeV-cms, +K%2B+K-+pi%2B+pi%22">D0 --> K+ K- pi+ pi, +D0+pi%22">B+ --> D0 pi, pi: multiple production, D0: decay modes, +2pi%2B+2pi%22">D0 --> 2pi+ 2pi, amplitude analysis, sensitivity, LHC-B, asymmetry: CP, CERN LHC Coll, 7000 GeV-cms, CKM matrix: unitarity, +D0+pi%2B%22">B+ --> D0 pi+, p p: colliding beams, experimental results
Abstract

International audience; The first study of $C\!P$ violation in the decay mode ${{B} ^\pm } \rightarrow [{{K} ^+} {{K} ^-} {{\uppi } ^+} {{\uppi } ^-} ]_{D} h^\pm $, with $h=K,\pi $, is presented, exploiting a data sample of proton–proton collisions collected by the LHCb experiment that corresponds to an integrated luminosity of $9\text {\,fb} ^{-1} $. The analysis is performed in bins of phase space, which are optimised for sensitivity to local $C\!P$ asymmetries. $C\!P$-violating observables that are sensitive to the angle $\gamma $ of the Unitarity Triangle are determined. The analysis requires external information on charm-decay parameters, which are currently taken from an amplitude analysis of LHCb data, but can be updated in the future when direct measurements become available. Measurements are also performed of phase-space integrated observables for ${{B} ^\pm } \rightarrow [{{K} ^+} {{K} ^-} {{\uppi } ^+} {{\uppi } ^-} ]_{D} h^\pm $ and ${{B} ^\pm } \rightarrow [{{\uppi } ^+} {{\uppi } ^-} {{\uppi } ^+} {{\uppi } ^-} ]_{D} h^\pm $ decays.

Published
2023

24. Search for the lepton-flavour violating decays B$^{0}$→ K$^{*0}$μ$^{±}$e$^{∓}$ and $ {B}_s^0 $→ ϕμ$^{±}$e$^{∓}$

Author

Aaij, R, Abdelmotteleb, A.S. W, Abellan Beteta, C, Abudinén, F, Ackernley, T, Adeva, B, Adinolfi, M, Afsharnia, H, Agapopoulou, C, Aidala, C.A, Aiola, S, Ajaltouni, Z, Akar, S, Akiba, K, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Aliouche, Z, Alvarez Cartelle, P, Amato, S, Amey, J.L, Amhis, Y, An, L, Anderlini, L, Andersson, M, Andreianov, A, Andreotti, M, Andreou, D, Ao, D, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Atzeni, M, Audurier, B, Bachmann, S, Bachmayer, M, Back, J.J, Bailly-Reyre, A, Baladron Rodriguez, P, Balagura, V, Baldini, W, Baptista de Souza Leite, J, Barbetti, M, Barlow, R.J, Barsuk, S, Barter, W, Bartolini, M, Baryshnikov, F, Basels, J.M, Bassi, G, Batsukh, B, Battig, A, Bay, A, Beck, A, Becker, M, Bedeschi, F, Bediaga, I.B, Beiter, A, Belavin, V, Belin, S, Bellee, V, Belous, K, Belov, I, Belyaev, I, Bencivenni, G, Ben-Haim, E, Berezhnoy, A, Bernet, R, Berninghoff, D, Bernstein, H.C, Bertella, C, Bertolin, A, Betancourt, C, Betti, F, Bezshyiko, Ia, Bhasin, S, Bhom, J, Bian, L, Bieker, M.S, Biesuz, N.V, Bifani, S, Billoir, P, Biolchini, A, Birch, M, Bishop, F.C. R, Bitadze, A, Bizzeti, A, Blago, M.P, Blake, T, Blanc, F, Blusk, S, Bobulska, D, Boelhauve, J.A, Boente Garcia, O, Boettcher, T, Boldyrev, A, Bondar, N, Borghi, S, Borsato, M, Borsuk, J.T, Bouchiba, S.A, Bowcock, T.J. V, Boyer, A, Bozzi, C, Bradley, M.J, Braun, S, Brea Rodriguez, A, Brodzicka, J, Brossa Gonzalo, A, Brundu, D, Buonaura, A, Buonincontri, L, Burke, A.T, Burr, C, Bursche, A, Butkevich, A, Butter, J.S, Buytaert, J, Byczynski, W, Cadeddu, S, Cai, H, Calabrese, R, Calefice, L, Cali, S, Calladine, R, Calvi, M, Calvo Gomez, M, Camargo Magalhaes, P, Campana, P, Campora Perez, D.H, Campoverde Quezada, A.F, Capelli, S, Capriotti, L, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carli, I, Carniti, P, Carus, L, Casais Vidal, A, Caspary, R, Casse, G, Cattaneo, M, Cavallero, G, Cavallini, V, Celani, S, Cerasoli, J, Cervenkov, D, Chadwick, A.J, Chapman, M.G, Charles, M, Charpentier, Ph, Chavez Barajas, C.A, Chefdeville, M, Chen, C, Chen, S, Chernov, A, Chernyshenko, S, Chobanova, V, Cholak, S, Chrzaszcz, M, Chubykin, A, Chulikov, V, Ciambrone, P, Cicala, M.F, Cid Vidal, X, Ciezarek, G, Ciullo, G, Clarke, P.E. L, Clemencic, M, Cliff, H.V, Closier, J, Cobbledick, J.L, Coco, V, Coelho, J.A. B, Cogan, J, Cogneras, E, Cojocariu, L, Collins, P, Colombo, T, Congedo, L, Contu, A, Cooke, N, Coombs, G, Corredoira, I, Corti, G, Couturier, B, Craik, D.C, Crkovská, J, Cruz Torres, M, Currie, R, da Silva, C.L, Dadabaev, S, Dai, L, Dall’occo, E, Dalseno, J, D’ambrosio, C, Danilina, A, D’argent, P, Davies, J.E, Davis, A, de Aguiar Francisco, O, de Boer, J, de Bruyn, K, de Capua, S, de Cian, M, de Freitas Carneiro da Graca, U, de Lucia, E, de Miranda, J.M, de Paula, L, de Serio, M, de Simone, D, de Simone, P, de Vellis, F, de Vries, J.A, Dean, C.T, Debernardis, F, Decamp, D, Dedu, V, del Buono, L, Delaney, B, Dembinski, H.P, Denysenko, V, Deschamps, O, Dettori, F, Dey, B, Di Cicco, A, Di Nezza, P, Didenko, S, Dieste Maronas, L, Ding, S, Dobishuk, V, Dolmatov, A, Dong, C, Donohoe, A.M, Dordei, F, dos Reis, A.C, Douglas, L, Downes, A.G, Dudek, M.W, Dufour, L, Duk, V, Durante, P, Durham, J.M, Dutta, D, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Eisenhardt, S, Ek-In, S, Eklund, L, Ely, S, Ene, A, Epple, E, Escher, S, Eschle, J, Esen, S, Evans, T, Falcao, L.N, Fan, Y, Fang, B, Farry, S, Fazzini, D, Feo, M, Fernez, A.D, Ferrari, F, Ferreira Lopes, L, Ferreira Rodrigues, F, Ferreres Sole, S, Ferrillo, M, Ferro-Luzzi, M, Filippov, S, Fini, R.A, Fiorini, M, Firlej, M, Fischer, K.M, Fitzgerald, D.S, Fitzpatrick, C, Fiutowski, T, Fleuret, F, Fontana, M, Fontanelli, F, Forty, R, Foulds-Holt, D, Franco Lima, V, Franco Sevilla, M, Frank, M, Franzoso, E, Frau, G, Frei, C, Friday, D.A, Fu, J, Fuehring, Q, Gabriel, E, Galati, G, Gallas Torreira, A, Galli, D, Gambetta, S, Gan, Y, Gandelman, M, Gandini, P, Gao, Y, Garau, M, Garcia Martin, L.M, Garcia Moreno, P, García Pardiñas, J, Garcia Plana, B, Garcia Rosales, F.A, Garrido, L, Gaspar, C, Geertsema, R.E, Gerick, D, Gerken, L.L, Gersabeck, E, Gersabeck, M, Gershon, T, Giambastiani, L, Gibson, V, Giemza, H.K, Gilman, A.L, Giovannetti, M, Gioventù, A, Gironella Gironell, P, Giugliano, C, Giza, M.A, Gizdov, K, Gkougkousis, E.L, Gligorov, V.V, Göbel, C, Golobardes, E, Golubkov, D, Golutvin, A, Gomes, A, Gomez Fernandez, S, Goncalves Abrantes, F, Goncerz, M, Gong, G, Gorelov, I.V, Gotti, C, Grabowski, J.P, Grammatico, T, Granado Cardoso, L.A, Graugés, E, Graverini, E, Graziani, G, Grecu, A.T, Greeven, L.M, Grieser, N.A, Grillo, L, Gromov, S, Gruberg Cazon, B.R, Gu, C, Guarise, M, Guittiere, M, Günther, P.A, Gushchin, E, Guth, A, Guz, Y, Gys, T, Hadavizadeh, T, Haefeli, G, Haen, C, Haimberger, J, Haines, S.C, Halewood-Leagas, T, Halvorsen, M.M, Hamilton, P.M, Hammerich, J, Han, Q, Han, X, Hansen, E.B, Hansmann-Menzemer, S, Hao, L, Harnew, N, Harrison, T, Hasse, C, Hatch, M, He, J, Heijhoff, K, Heinicke, K, Henderson, R.D. L, Hennequin, A.M, Hennessy, K, Henry, L, Heuel, J, Hicheur, A, Hill, D, Hilton, M, Hollitt, S.E, Hou, R, Hou, Y, Hu, J, Hu, W, Hu, X, Huang, W, Huang, X, Hulsbergen, W, Hunter, R.J, Hushchyn, M, Hutchcroft, D, Ibis, P, Idzik, M, Ilin, D, Ilten, P, Inglessi, A, Iniukhin, A, Ishteev, A, Ivshin, K, Jacobsson, R, Jage, H, Jaimes Elles, S.J, Jakobsen, S, Jans, E, Jashal, B.K, Jawahery, A, Jevtic, V, Jiang, X, John, M, Johnson, D, Jones, C.R, Jones, T.P, Jost, B, Jurik, N, Juszczak, I, Kandybei, S, Kang, Y, Karacson, M, Karpenkov, D, Karpov, M, Kautz, J.W, Keizer, F, Keller, D.M, Kenzie, M, Ketel, T, Khanji, B, Kharisova, A, Kholodenko, S, Kirn, T, Kirsebom, V.S, Kitouni, O, Klaver, S, Kleijne, N, Klimaszewski, K, Kmiec, M.R, Koliiev, S, Kondybayeva, A, Konoplyannikov, A, Kopciewicz, P, Kopecna, R, Koppenburg, P, Korolev, M, Kostiuk, I, Kot, O, Kotriakhova, S, Kozachuk, A, Kravchenko, P, Kravchuk, L, Krawczyk, R.D, Kreps, M, Kretzschmar, S, Krokovny, P, Krupa, W, Krzemien, W, Kubat, J, Kucewicz, W, Kucharczyk, M, Kudryavtsev, V, Kunde, G.J, Lacarrere, D, Lafferty, G, Lai, A, Lampis, A, Lancierini, D, Lane, J.J, Lane, R, Lanfranchi, G, Langenbruch, C, Langer, J, Lantwin, O, Latham, T, Lazzari, F, Lazzaroni, M, Le Gac, R, Lee, S.H, Lefèvre, R, Leflat, A, Legotin, S, Lenisa, P, Leroy, O, Lesiak, T, Leverington, B, Li, H, Li, K, Li, P, Li, S, Li, Y, Li, Z, Liang, X, Lin, C, Lin, T, Lindner, R, Lisovskyi, V, Litvinov, R, Liu, G, Liu, H, Liu, Q, Liu, S, Lobo Salvia, A, Loi, A, Lollini, R, Lomba Castro, J, Longstaff, I, Lopes, J.H, López Soliño, S, Lovell, G.H, Lu, Y, Lucarelli, C, Lucchesi, D, Luchuk, S, Lucio Martinez, M, Lukashenko, V, Luo, Y, Lupato, A, Luppi, E, Lusiani, A, Lynch, K, Lyu, X.R, Ma, L, Ma, R, Maccolini, S, Machefert, F, Maciuc, F, Macko, V, Mackowiak, P, Maddrell-Mander, S, Madhan Mohan, L.R, Maevskiy, A, Maisuzenko, D, Majewski, M.W, Malczewski, J.J, Malde, S, Malecki, B, Malinin, A, Maltsev, T, Malygina, H, Manca, G, Mancinelli, G, Manuzzi, D, Manzari, C.A, Marangotto, D, Maratas, J.M, Marchand, J.F, Marconi, U, Mariani, S, Marin Benito, C, Marinangeli, M, Marks, J, Marshall, A.M, Marshall, P.J, Martelli, G, Martellotti, G, Martinazzoli, L, Martinelli, M, Martinez Santos, D, Martinez Vidal, F, Massafferri, A, Materok, M, Matev, R, Mathad, A, Matiunin, V, Matteuzzi, C, Mattioli, K.R, Mauri, A, Maurice, E, Mauricio, J, Mazurek, M, Mccann, M, Mcconnell, L, Mcgrath, T.H, Mchugh, N.T, Mcnab, A, Mcnulty, R, Mead, J.V, Meadows, B, Meier, G, Melnychuk, D, Meloni, S, Merk, M, Merli, A, Meyer Garcia, L, Mikhasenko, M, Milanes, D.A, Millard, E, Milovanovic, M, Minard, M.N, Minotti, A, Mitchell, S.E, Mitreska, B, Mitzel, D.S, Mödden, A, Mohammed, R.A, Moise, R.D, Mokhnenko, S, Mombächer, T, Monroy, I.A, Monteil, S, Morandin, M, Morello, G, Morello, M.J, Moron, J, Morris, A.B, Morris, A.G, Mountain, R, Mu, H, Muheim, F, Mulder, M, Müller, K, Murphy, C.H, Murray, D, Murta, R, Muzzetto, P, Naik, P, Nakada, T, Nandakumar, R, Nanut, T, Nasteva, I, Needham, M, Neri, N, Neubert, S, Neufeld, N, Neustroev, P, Newcombe, R, Niel, E.M, Nieswand, S, Nikitin, N, Nolte, N.S, Normand, C, Nunez, C, Oblakowska-Mucha, A, Obraztsov, V, Oeser, T, O’hanlon, D.P, Okamura, S, Oldeman, R, Oliva, F, Olivares, M.E, Onderwater, C.J. G, O’neil, R.H, Otalora Goicochea, J.M, Ovsiannikova, T, Owen, P, Oyanguren, A, Ozcelik, O, Padeken, K.O, Pagare, B, Pais, P.R, Pajero, T, Palano, A, Palutan, M, Pan, Y, Panshin, G, Papanestis, A, Pappagallo, M, Pappalardo, L.L, Pappenheimer, C, Parker, W, Parkes, C, Passalacqua, B, Passaleva, G, Pastore, A, Patel, M, Patrignani, C, Pawley, C.J, Pearce, A, Pellegrino, A, Pepe Altarelli, M, Perazzini, S, Pereima, D, Pereiro Castro, A, Perret, P, Petric, M, Petridis, K, Petrolini, A, Petrov, A, Petrucci, S, Petruzzo, M, Pham, H, Philippov, A, Piandani, R, Pica, L, Piccini, M, Pietrzyk, B, Pietrzyk, G, Pili, M, Pinci, D, Pisani, F, Pizzichemi, M, Placinta, V, Plews, J, Plo Casasus, M, Polci, F, Poli Lener, M, Poliakova, M, Poluektov, A, Polukhina, N, Polyakov, I, Polycarpo, E, Ponce, S, Popov, D, Popov, S, Poslavskii, S, Prasanth, K, Promberger, L, Prouve, C, Pugatch, V, Puill, V, Punzi, G, Qi, H.R, Qian, W, Qin, N, Qu, S, Quagliani, R, Raab, N.V, Rabadan Trejo, R.I, Rachwal, B, Rademacker, J.H, Rajagopalan, R, Rama, M, Ramos Pernas, M, Rangel, M.S, Ratnikov, F, Raven, G, Rebollo de Miguel, M, Redi, F, Reiss, F, Remon Alepuz, C, Ren, Z, Renaudin, V, Resmi, P.K, Ribatti, R, Ricci, A.M, Ricciardi, S, Rinnert, K, Robbe, P, Robertson, G, Rodrigues, A.B, Rodrigues, E, Rodriguez Lopez, J.A, Rodriguez Rodriguez, E, Rollings, A, Roloff, P, Romanovskiy, V, Romero Lamas, M, Romero Vidal, A, Roth, J.D, Rotondo, M, Rudolph, M.S, Ruf, T, Ruiz Fernandez, R.A, Ruiz Vidal, J, Ryzhikov, A, Ryzka, J, Saborido Silva, J.J, Sagidova, N, Sahoo, N, Saitta, B, Salomoni, M, Sanchez Gras, C, Sanderswood, I, Santacesaria, R, Santamarina Rios, C, Santimaria, M, Santovetti, E, Saranin, D, Sarpis, G, Sarpis, M, Sarti, A, Satriano, C, Satta, A, Saur, M, Savrina, D, Sazak, H, Scantlebury Smead, L.G, Scarabotto, A, Schael, S, Scherl, S, Schiller, M, Schindler, H, Schmelling, M, Schmidt, B, Schmitt, S, Schneider, O, Schopper, A, Schubiger, M, Schulte, S, Schune, M.H, Schwemmer, R, Sciascia, B, Sciuccati, A, Sellam, S, Semennikov, A, Senghi Soares, M, Sergi, A, Serra, N, Sestini, L, Seuthe, A, Shang, Y, Shangase, D.M, Shapkin, M, Shchemerov, I, Shchutska, L, Shears, T, Shekhtman, L, Shen, Z, Sheng, S, Shevchenko, V, Shields, E.B, Shimizu, Y, Shmanin, E, Shupperd, J.D, Siddi, B.G, Silva Coutinho, R, Simi, G, Simone, S, Singla, M, Skidmore, N, Skuza, R, Skwarnicki, T, Slater, M.W, Slazyk, I, Smallwood, J.C, Smeaton, J.G, Smith, E, Smith, M, Snoch, A, Soares Lavra, L, Sokoloff, M.D, Soler, F.J. P, Solomin, A, Solovev, A, Solovyev, I, Souza de Almeida, F.L, Souza de Paula, B, Spaan, B, Spadaro Norella, E, Spiridenkov, E, Spradlin, P, Sriskaran, V, Stagni, F, Stahl, M, Stahl, S, Stanislaus, S, Steinkamp, O, Stenyakin, O, Stevens, H, Stone, S, Strekalina, D, Suljik, F, Sun, J, Sun, L, Sun, Y, Svihra, P, Swallow, P.N, Swientek, K, Szabelski, A, Szumlak, T, Szymanski, M, Taneja, S, Tanner, A.R, Tat, M.D, Terentev, A, Teubert, F, Thomas, E, Thompson, D.J. D, Thomson, K.A, Tilquin, H, Tisserand, V, T’jampens, S, Tobin, M, Tomassetti, L, Tonani, G, Tong, X, Torres Machado, D, Tou, D.Y, Trifonova, E, Trilov, S.M, Trippl, C, Tuci, G, Tully, A, Tuning, N, Ukleja, A, Unverzagt, D.J, Ursov, E, Usachov, A, Ustyuzhanin, A, Uwer, U, Vagner, A, Vagnoni, V, Valassi, A, Valenti, G, Valls Canudas, N, van Beuzekom, M, van Dijk, M, van Hecke, H, van Herwijnen, E, van Veghel, M, Vazquez Gomez, R, Vazquez Regueiro, P, Vázquez Sierra, C, Vecchi, S, Velthuis, J.J, Veltri, M, Venkateswaran, A, Veronesi, M, Vesterinen, M, Vieira, D, Vieites Diaz, M, Vilasis-Cardona, X, Vilella Figueras, E, Villa, A, Vincent, P, Volle, F.C, Vom Bruch, D, Vorobyev, A, Vorobyev, V, Voropaev, N, Vos, K, Waldi, R, Walsh, J, Wang, C, Wang, J, Wang, M, Wang, R, Wang, Y, Wang, Z, Ward, J.A, Watson, N.K, Websdale, D, Weisser, C, Westhenry, B.D. C, White, D.J, Whitehead, M, Wiederhold, A.R, Wiedner, D, Wilkinson, G, Wilkinson, M.K, Williams, I, Williams, M, Williams, M.R. J, Williams, R, Wilson, F.F, Wislicki, W, Witek, M, Witola, L, Wong, C.P, Wormser, G, Wotton, S.A, Wu, H, Wyllie, K, Xiang, Z, Xiao, D, Xie, Y, Xu, A, Xu, J, Xu, L, Xu, M, Xu, Q, Xu, Z, Yang, D, Yang, S, Yang, Y, Yang, Z, Yeomans, L.E, Yin, H, Yu, J, Yuan, X, Zaffaroni, E, Zavertyaev, M, Zdybal, M, Zenaiev, O, Zeng, M, Zhang, D, Zhang, L, Zhang, S, Zhang, Y, Zharkova, A, Zhelezov, A, Zheng, Y, Zhou, T, Zhou, X, Zhou, Y, Zhovkovska, V, Zhu, X, Zhu, Z, Zhukov, V, Zou, Q, Zucchelli, S, Zuliani, D, Zunica, G, Laboratoire de Physique de Clermont (LPC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), and LHCb

Subjects
+K*%28892%290+muon%2B+electron%22">B0 --> K*(892)0 muon+ electron, p p: scattering, 13000 GeV-cms, Flavour Physics, B/s0: semileptonic decay, Rare Decay, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], left-handed, 8000 GeV-cms, Hadron-Hadron Scattering, Phi(1020), new physics: search for, K*(892), B Physics, lepton: flavor: violation, B0: branching ratio: upper limit, B0: rare decay, phantom, B/s0: branching ratio: upper limit, LHC-B, CERN LHC Coll, +Phi%281020%29+muon%2B+electron%22">B/s0 --> Phi(1020) muon+ electron, +Phi%281020%29+muon-+positron%22">B/s0 --> Phi(1020) muon- positron, 7000 GeV-cms, B0: semileptonic decay, p p: colliding beams, +K*%28892%290+muon-+positron%22">B0 --> K*(892)0 muon- positron, B/s0: rare decay, experimental results
Abstract

International audience; A search for the lepton-flavour violating decays B$^{0}$ → K$^{*0}$μ$^{±}$e$^{∓}$ and $ {B}_s^0 $→ ϕμ$^{±}$e$^{∓}$ is presented, using proton-proton collision data collected by the LHCb detector at the LHC, corresponding to an integrated luminosity of 9 fb$^{−1}$. No significant signals are observed and upper limits of$ {\displaystyle \begin{array}{c}\mathcal{B}\left({B}^0\to {K}^{\ast 0}{\mu}^{+}{e}^{-}\right)

Published
2023

25. Amplitude analysis of the D$^{+}$→ π$^{−}$π$^{+}$π$^{+}$ decay and measurement of the π$^{−}$π$^{+}$ S-wave amplitude

Author

Aaij, R, Abdelmotteleb, A.S. W, Abellan Beteta, C, Abudinén, F, Ackernley, T, Adeva, B, Adinolfi, M, Afsharnia, H, Agapopoulou, C, Aidala, C.A, Aiola, S, Ajaltouni, Z, Akar, S, Akiba, K, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Aliouche, Z, Alvarez Cartelle, P, Amalric, R, Amato, S, Amey, J.L, Amhis, Y, An, L, Anderlini, L, Andersson, M, Andreianov, A, Andreotti, M, Andreou, D, Ao, D, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Atzeni, M, Audurier, B, Bachmann, S, Bachmayer, M, Back, J.J, Bailly-Reyre, A, Baladron Rodriguez, P, Balagura, V, Baldini, W, Baptista de Souza Leite, J, Barbetti, M, Barlow, R.J, Barsuk, S, Barter, W, Bartolini, M, Baryshnikov, F, Basels, J.M, Bassi, G, Batsukh, B, Battig, A, Bay, A, Beck, A, Becker, M, Bedeschi, F, Bediaga, I.B, Beiter, A, Belavin, V, Belin, S, Bellee, V, Belous, K, Belov, I, Belyaev, I, Benane, G, Bencivenni, G, Ben-Haim, E, Berezhnoy, A, Bernet, R, Berninghoff, D, Bernstein, H.C, Bertella, C, Bertolin, A, Betancourt, C, Betti, F, Bezshyiko, Ia, Bhasin, S, Bhom, J, Bian, L, Bieker, M.S, Biesuz, N.V, Bifani, S, Billoir, P, Biolchini, A, Birch, M, Bishop, F.C. R, Bitadze, A, Bizzeti, A, Blago, M.P, Blake, T, Blanc, F, Blusk, S, Bobulska, D, Boelhauve, J.A, Garcia, O.Boente, Boettcher, T, Boldyrev, A, Bolognani, C.S, Bondar, N, Borghi, S, Borsato, M, Borsuk, J.T, Bouchiba, S.A, Bowcock, T.J. V, Boyer, A, Bozzi, C, Bradley, M.J, Braun, S, Brea Rodriguez, A, Brodzicka, J, Brossa Gonzalo, A, Brundu, D, Buonaura, A, Buonincontri, L, Burke, A.T, Burr, C, Bursche, A, Butkevich, A, Butter, J.S, Buytaert, J, Byczynski, W, Cadeddu, S, Cai, H, Calabrese, R, Calefice, L, Cali, S, Calladine, R, Calvi, M, Calvo Gomez, M, Campana, P, Campora Perez, D.H, Campoverde Quezada, A.F, Capelli, S, Capriotti, L, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carli, I, Carniti, P, Carus, L, Casais Vidal, A, Caspary, R, Casse, G, Cattaneo, M, Cavallero, G, Cavallini, V, Celani, S, Cerasoli, J, Cervenkov, D, Chadwick, A.J, Chapman, M.G, Charles, M, Charpentier, Ph, Chavez Barajas, C.A, Chefdeville, M, Chen, C, Chen, S, Chernov, A, Chernyshenko, S, Chobanova, V, Cholak, S, Chrzaszcz, M, Chubykin, A, Chulikov, V, Ciambrone, P, Cicala, M.F, Cid Vidal, X, Ciezarek, G, Ciullo, G, Clarke, P.E. L, Clemencic, M, Cliff, H.V, Closier, J, Cobbledick, J.L, Coco, V, Coelho, J.A. B, Cogan, J, Cogneras, E, Cojocariu, L, Collins, P, Colombo, T, Congedo, L, Contu, A, Cooke, N, Coombs, G, Corredoira, I, Corti, G, Couturier, B, Craik, D.C, Crkovská, J, Cruz Torres, M, Currie, R, da Silva, C.L, Dadabaev, S, Dai, L, Dai, X, Dall’occo, E, Dalseno, J, D’ambrosio, C, Danilina, A, D’argent, P, Davies, J.E, Davis, A, de Aguiar Francisco, O, de Boer, J, de Bruyn, K, de Capua, S, de Cian, M, de Freitas Carneiro da Graca, U, de Lucia, E, de Miranda, J.M, de Paula, L, de Serio, M, de Simone, D, de Simone, P, de Vellis, F, de Vries, J.A, Dean, C.T, Debernardis, F, Decamp, D, Dedu, V, del Buono, L, Delaney, B, Dembinski, H.P, Denysenko, V, Deschamps, O, Dettori, F, Dey, B, Di Cicco, A, Di Nezza, P, Diachkov, I, Didenko, S, Dieste Maronas, L, Ding, S, Dobishuk, V, Dolmatov, A, Dong, C, Donohoe, A.M, Dordei, F, dos Reis, A.C, Douglas, L, Downes, A.G, Dudek, M.W, Dufour, L, Duk, V, Durante, P, Durham, J.M, Dutta, D, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Eirea Orro, C, Eisenhardt, S, Ek-In, S, Eklund, L, Ely, S, Ene, A, Epple, E, Escher, S, Eschle, J, Esen, S, Evans, T, Falcao, L.N, Fan, Y, Fang, B, Farry, S, Fazzini, D, Feo, M, Fernez, A.D, Ferrari, F, Ferreira Lopes, L, Ferreira Rodrigues, F, Ferreres Sole, S, Ferrillo, M, Ferro-Luzzi, M, Filippov, S, Fini, R.A, Fiorini, M, Firlej, M, Fischer, K.M, Fitzgerald, D.S, Fitzpatrick, C, Fiutowski, T, Fleuret, F, Fontana, M, Fontanelli, F, Forty, R, Foulds-Holt, D, Franco Lima, V, Franco Sevilla, M, Frank, M, Franzoso, E, Frau, G, Frei, C, Friday, D.A, Fu, J, Fuehring, Q, Gabriel, E, Galati, G, Galati, M.D, Gallas Torreira, A, Galli, D, Gambetta, S, Gan, Y, Gandelman, M, Gandini, P, Gao, Y, Garau, M, Garcia Martin, L.M, Garcia Moreno, P, García Pardiñas, J, Garcia Plana, B, Garcia Rosales, F.A, Garrido, L, Gaspar, C, Geertsema, R.E, Gerick, D, Gerken, L.L, Gersabeck, E, Gersabeck, M, Gershon, T, Giambastiani, L, Gibson, V, Giemza, H.K, Gilman, A.L, Giovannetti, M, Gioventù, A, Gironella Gironell, P, Giugliano, C, Giza, M.A, Gizdov, K, Gkougkousis, E.L, Gligorov, V.V, Göbel, C, Golobardes, E, Golubkov, D, Golutvin, A, Gomes, A, Gomez Fernandez, S, Goncalves Abrantes, F, Goncerz, M, Gong, G, Gorelov, I.V, Gotti, C, Grabowski, J.P, Grammatico, T, Granado Cardoso, L.A, Graugés, E, Graverini, E, Graziani, G, Grecu, A.T, Greeven, L.M, Grieser, N.A, Grillo, L, Gromov, S, Gruberg Cazon, B.R, Gu, C, Guarise, M, Guittiere, M, Günther, P.A, Gushchin, E, Guth, A, Guz, Y, Gys, T, Hadavizadeh, T, Haefeli, G, Haen, C, Haimberger, J, Haines, S.C, Halewood-Leagas, T, Halvorsen, M.M, Hamilton, P.M, Hammerich, J, Han, Q, Han, X, Hansen, E.B, Hansmann-Menzemer, S, Hao, L, Harnew, N, Harrison, T, Hasse, C, Hatch, M, He, J, Heijhoff, K, Heinicke, K, Henderson, C, Henderson, R.D. 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G, O’neil, R.H, Otalora Goicochea, J.M, Ovsiannikova, T, Owen, P, Oyanguren, A, Ozcelik, O, Padeken, K.O, Pagare, B, Pais, P.R, Pajero, T, Palano, A, Palutan, M, Pan, Y, Panshin, G, Papanestis, A, Pappagallo, M, Pappalardo, L.L, Pappenheimer, C, Parker, W, Parkes, C, Passalacqua, B, Passaleva, G, Pastore, A, Patel, M, Patrignani, C, Pawley, C.J, Pearce, A, Pellegrino, A, Pepe Altarelli, M, Perazzini, S, Pereima, D, Pereiro Castro, A, Perret, P, Petric, M, Petridis, K, Petrolini, A, Petrov, A, Petrucci, S, Petruzzo, M, Pham, H, Philippov, A, Piandani, R, Pica, L, Piccini, M, Pietrzyk, B, Pietrzyk, G, Pili, M, Pinci, D, Pisani, F, Pizzichemi, M, Placinta, V, Plews, J, Plo Casasus, M, Polci, F, Poli Lener, M, Poliakova, M, Poluektov, A, Polukhina, N, Polyakov, I, Polycarpo, E, Ponce, S, Popov, D, Popov, S, Poslavskii, S, Prasanth, K, Promberger, L, Prouve, C, Pugatch, V, Puill, V, Punzi, G, Qi, H.R, Qian, W, Qin, N, Qu, S, Quagliani, R, Raab, N.V, Rabadan Trejo, R.I, Rachwal, B, Rademacker, J.H, Rajagopalan, R, Rama, M, Ramos Pernas, M, Rangel, M.S, Ratnikov, F, Raven, G, Rebollo de Miguel, M, Redi, F, Reich, J, Reiss, F, Remon Alepuz, C, Ren, Z, Renaudin, V, Resmi, P.K, Ribatti, R, Ricci, A.M, Ricciardi, S, Richardson, K, Richardson-Slipper, M, Rinnert, K, Robbe, P, Robertson, G, Rodrigues, A.B, Rodrigues, E, Rodriguez Lopez, J.A, Rodriguez Rodriguez, E, Rollings, A, Roloff, P, Romanovskiy, V, Romero Lamas, M, Romero Vidal, A, Roth, J.D, Rotondo, M, Rudolph, M.S, Ruf, T, Ruiz Fernandez, R.A, Ruiz Vidal, J, Ryzhikov, A, Ryzka, J, Saborido Silva, J.J, Sagidova, N, Sahoo, N, Saitta, B, Salomoni, M, Sanchez Gras, C, Sanderswood, I, Santacesaria, R, Santamarina Rios, C, Santimaria, M, Santovetti, E, Saranin, D, Sarpis, G, Sarpis, M, Sarti, A, Satriano, C, Satta, A, Saur, M, Savrina, D, Sazak, H, Scantlebury Smead, L.G, Scarabotto, A, Schael, S, Scherl, S, Schiller, M, Schindler, H, Schmelling, M, Schmidt, B, Schmitt, S, Schneider, O, Schopper, A, Schubiger, M, Schulte, S, Schune, M.H, Schwemmer, R, Sciascia, B, Sciuccati, A, Sellam, S, Semennikov, A, Senghi Soares, M, Sergi, A, Serra, N, Sestini, L, Seuthe, A, Shang, Y, Shangase, D.M, Shapkin, M, Shchemerov, I, Shchutska, L, Shears, T, Shekhtman, L, Shen, Z, Sheng, S, Shevchenko, V, Shi, B, Shields, E.B, Shimizu, Y, Shmanin, E, Shupperd, J.D, Siddi, B.G, Silva Coutinho, R, Simi, G, Simone, S, Singla, M, Skidmore, N, Skuza, R, Skwarnicki, T, Slater, M.W, Smallwood, J.C, Smeaton, J.G, Smith, E, Smith, K, Smith, M, Snoch, A, Soares Lavra, L, Sokoloff, M.D, Soler, F.J. P, Solomin, A, Solovev, A, Solovyev, I, Song, R, Souza de Almeida, F.L, Souza de Paula, B, Spaan, B, Spadaro Norella, E, Spiridenkov, E, Spradlin, P, Sriskaran, V, Stagni, F, Stahl, M, Stahl, S, Stanislaus, S, Stein, E.N, Steinkamp, O, Stenyakin, O, Stevens, H, Stone, S, Strekalina, D, Suljik, F, Sun, J, Sun, L, Sun, Y, Svihra, P, Swallow, P.N, Swientek, K, Szabelski, A, Szumlak, T, Szymanski, M, Tan, Y, Taneja, S, Tanner, A.R, Tat, M.D, Terentev, A, Teubert, F, Thomas, E, Thompson, D.J. D, Thomson, K.A, Tilquin, H, Tisserand, V, T’jampens, S, Tobin, M, Tomassetti, L, Tonani, G, Tong, X, Torres Machado, D, Tou, D.Y, Trifonova, E, Trilov, S.M, Trippl, C, Tuci, G, Tully, A, Tuning, N, Ukleja, A, Unverzagt, D.J, Ursov, E, Usachov, A, Ustyuzhanin, A, Uwer, U, Vagner, A, Vagnoni, V, Valassi, A, Valenti, G, Valls Canudas, N, van Beuzekom, M, van Dijk, M, van Hecke, H, van Herwijnen, E, van Hulse, C.B, van Veghel, M, Vazquez Gomez, R, Vazquez Regueiro, P, Vázquez Sierra, C, Vecchi, S, Velthuis, J.J, Veltri, M, Venkateswaran, A, Veronesi, M, Vesterinen, M, Vieira, D, Vieites Diaz, M, Vilasis-Cardona, X, Vilella Figueras, E, Villa, A, Vincent, P, Volle, F.C, Vom Bruch, D, Vorobyev, A, Vorobyev, V, Voropaev, N, Vos, K, Vrahas, C, Waldi, R, Walsh, J, Wan, G, Wang, C, Wang, J, Wang, M, Wang, R, Wang, X, Wang, Y, Wang, Z, Ward, J.A, Watson, N.K, Websdale, D, Wei, Y, Weisser, C, Westhenry, B.D. C, White, D.J, Whitehead, M, Wiederhold, A.R, Wiedner, D, Wilkinson, G, Wilkinson, M.K, Williams, I, Williams, M, Williams, M.R. J, Williams, R, Wilson, F.F, Wislicki, W, Witek, M, Witola, L, Wong, C.P, Wormser, G, Wotton, S.A, Wu, H, Wyllie, K, Xiang, Z, Xiao, D, Xie, Y, Xu, A, Xu, J, Xu, L, Xu, M, Xu, Q, Xu, Z, Yang, D, Yang, S, Yang, Y, Yang, Z, Yeomans, L.E, Yin, H, Yu, J, Yuan, X, Zaffaroni, E, Zavertyaev, M, Zdybal, M, Zenaiev, O, Zeng, M, Zhang, C, Zhang, D, Zhang, L, Zhang, S, Zhang, Y, Zharkova, A, Zhelezov, A, Zheng, Y, Zhou, T, Zhou, X, Zhou, Y, Zhovkovska, V, Zhu, X, Zhu, Z, Zhukov, V, Zou, Q, Zucchelli, S, Zuliani, D, Zunica, G, Laboratoire de Physique de Clermont (LPC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), and LHCb

Subjects
8000 GeV-cms, p p: scattering, data analysis method, Hadron-Hadron Scattering, pi: multiple production, omega(783), Particle and Resonance Production, Dalitz plot, mass spectrum: (pi+ pi-), rho(770), +pi-+2pi%2B%22">D+ --> pi- 2pi+, amplitude analysis, LHC-B, High Energy Physics - Experiment, f2(1270), intermediate state, CERN LHC Coll, Charm Physics, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], D+: hadronic decay, structure, p p: colliding beams, isobar model, Particle Physics - Experiment, experimental results
Abstract

An amplitude analysis of the $D^+ \to \pi^- \pi^+ \pi^+$ decay is performed with a sample corresponding to $1.5\rm fb^{-1}$ of integrated luminosity of $pp$ collisions at a centre-of-mass energy $\sqrt{s}=8$ TeV collected by the LHCb detector in 2012. The sample contains approximately six hundred thousand candidates with a signal purity of $95\%$. The resonant structure is studied through a fit to the Dalitz plot where the $\pi^- \pi^+$ S-wave amplitude is extracted as a function of $\pi^-\pi^+$ mass, and spin-1 and spin-2 resonances are included coherently through an isobar model. The S-wave component is found to be dominant, followed by the $\rho(770)^0\pi^+$ and $f_2(1270)\pi^+$ components. A small contribution from the $\omega(782)\to\pi^-\pi^+$ decay is seen for the first time in the $D^+ \to \pi^- \pi^+ \pi^+$ decay., Comment: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-016.html (LHCb public pages)

Published
2023

26. Measurement of the ratio of branching fractions $ \mathcal{B}\left({B}_c^{+}\to {B}_s^0{\pi}^{+}\right)/\mathcal{B}\left({B}_c^{+}\to J/\psi {\pi}^{+}\right) $

Author

Aaij, R, Abdelmotteleb, A.S. W, Abellan Beteta, C, Abudinén, F, Ackernley, T, Adeva, B, Adinolfi, M, Adlarson, P, Afsharnia, H, Agapopoulou, C, Aidala, C.A, Ajaltouni, Z, Akar, S, Akiba, K, Albicocco, P, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Aliouche, Z, Alvarez Cartelle, P, Amalric, R, Amato, S, Amey, J.L, Amhis, Y, An, L, Anderlini, L, Andersson, M, Andreianov, A, Andreotti, M, Andreou, D, Ao, D, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Atzeni, M, Audurier, B, Bachiller Perea, I.B, Bachmann, S, Bachmayer, M, Back, J.J, Bailly-Reyre, A, Baladron Rodriguez, P, Balagura, V, Baldini, W, Baptista de Souza Leite, J, Barbetti, M, Barlow, R.J, Barsuk, S, Barter, W, Bartolini, M, Baryshnikov, F, Basels, J.M, Bassi, G, Batsukh, B, Battig, A, Bay, A, Beck, A, Becker, M, Bedeschi, F, Bediaga, I.B, Beiter, A, Belavin, V, Belin, S, Bellee, V, Belous, K, Belov, I, Belyaev, I, Benane, G, Bencivenni, G, Ben-Haim, E, Berezhnoy, A, Bernet, R, Bernet Andres, S, Berninghoff, D, Bernstein, H.C, Bertella, C, Bertolin, A, Betancourt, C, Betti, F, Bezshyiko, Ia, Bhasin, S, Bhom, J, Bian, L, Bieker, M.S, Biesuz, N.V, Bifani, S, Billoir, P, Biolchini, A, Birch, M, Bishop, F.C. R, Bitadze, A, Bizzeti, A, Blago, M.P, Blake, T, Blanc, F, Blank, J.E, Blusk, S, Bobulska, D, Boelhauve, J.A, Boente Garcia, O, Boettcher, T, Boldyrev, A, Bolognani, C.S, Bolzonella, R, Bondar, N, Borgato, F, Borghi, S, Borsato, M, Borsuk, J.T, Bouchiba, S.A, Bowcock, T.J. V, Boyer, A, Bozzi, C, Bradley, M.J, Braun, S, Brea Rodriguez, A, Brodzicka, J, Brossa Gonzalo, A, Brown, J, Brundu, D, Buonaura, A, Buonincontri, L, Burke, A.T, Burr, C, Bursche, A, Butkevich, A, Butter, J.S, Buytaert, J, Byczynski, W, Cadeddu, S, Cai, H, Calabrese, R, Calefice, L, Cali, S, Calvi, M, Calvo Gomez, M, Campana, P, Campora Perez, D.H, Campoverde Quezada, A.F, Capelli, S, Capriotti, L, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carniti, P, Carus, L, Casais Vidal, A, Caspary, R, Casse, G, Cattaneo, M, Cavallero, G, Cavallini, V, Celani, S, Cerasoli, J, Cervenkov, D, Chadwick, A.J, Chahrour, I, Chapman, M.G, Charles, M, Charpentier, Ph, Chavez Barajas, C.A, Chefdeville, M, Chen, C, Chen, S, Chernov, A, Chernyshenko, S, Chobanova, V, Cholak, S, Chrzaszcz, M, Chubykin, A, Chulikov, V, Ciambrone, P, Cicala, M.F, Cid Vidal, X, Ciezarek, G, Ciullo, G, Clarke, P.E. L, Clemencic, M, Cliff, H.V, Closier, J, Cobbledick, J.L, Coco, V, Coelho, J.A. B, Cogan, J, Cogneras, E, Cojocariu, L, Collins, P, Colombo, T, Congedo, L, Contu, A, Cooke, N, Corredoira, I, Corti, G, Couturier, B, Craik, D.C, Cruz Torres, M, Currie, R, da Silva, C.L, Dadabaev, S, Dai, L, Dai, X, Dall’occo, E, Dalseno, J, D’ambrosio, C, Daniel, J, Danilina, A, D’argent, P, Davies, J.E, Davis, A, de Aguiar Francisco, O, de Boer, J, de Bruyn, K, de Capua, S, de Cian, M, de Freitas Carneiro da Graca, U, de Lucia, E, de Miranda, J.M, de Paula, L, de Serio, M, de Simone, D, de Simone, P, de Vellis, F, de Vries, J.A, Dean, C.T, Debernardis, F, Decamp, D, Dedu, V, del Buono, L, Delaney, B, Dembinski, H.P, Denysenko, V, Deschamps, O, Dettori, F, Dey, B, Di Nezza, P, Diachkov, I, Didenko, S, Dieste Maronas, L, Ding, S, Dobishuk, V, Dolmatov, A, Dong, C, Donohoe, A.M, Dordei, F, dos Reis, A.C, Douglas, L, Downes, A.G, Duda, P, Dudek, M.W, Dufour, L, Duk, V, Durante, P, Duras, M.M, Durham, J.M, Dutta, D, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eirea Orro, C, Eisenhardt, S, Ejopu, E, Ek-In, S, Eklund, L, Ellbracht, J, Ely, S, Ene, A, Epple, E, Escher, S, Eschle, J, Esen, S, Evans, T, Fabiano, F, Falcao, L.N, Fan, Y, Fang, B, Fantini, L, Faria, M, Farry, S, Fazzini, D, Felkowski, L.F, Feo, M, Fernandez Gomez, M, Fernez, A.D, Ferrari, F, Ferreira Lopes, L, Ferreira Rodrigues, F, Ferreres Sole, S, Ferrillo, M, Ferro-Luzzi, M, Filippov, S, Fini, R.A, Fiorini, M, Firlej, M, Fischer, K.M, Fitzgerald, D.S, Fitzpatrick, C, Fiutowski, T, Fleuret, F, Fontana, M, Fontanelli, F, Forty, R, Foulds-Holt, D, Franco Lima, V, Franco Sevilla, M, Frank, M, Franzoso, E, Frau, G, Frei, C, Friday, D.A, Fu, J, Fuehring, Q, Fulghesu, T, Gabriel, E, Galati, G, Galati, M.D, Gallas Torreira, A, Galli, D, Gambetta, S, Gan, Y, Gandelman, M, Gandini, P, Gao, Y, Garau, M, Garcia Martin, L.M, Garcia Moreno, P, García Pardiñas, J, Garcia Plana, B, Garcia Rosales, F.A, Garrido, L, Gaspar, C, Geertsema, R.E, Gerick, D, Gerken, L.L, Gersabeck, E, Gersabeck, M, Gershon, T, Giambastiani, L, Gibson, V, Giemza, H.K, Gilman, A.L, Giovannetti, M, Gioventù, A, Gironella Gironell, P, Giugliano, C, Giza, M.A, Gizdov, K, Gkougkousis, E.L, Gligorov, V.V, Göbel, C, Golobardes, E, Golubkov, D, Golutvin, A, Gomes, A, Gomez Fernandez, S, Goncalves Abrantes, F, Goncerz, M, Gong, G, Gorelov, I.V, Gotti, C, Grabowski, J.P, Grammatico, T, Granado Cardoso, L.A, Graugés, E, Graverini, E, Graziani, G, Grecu, A.T, Greeven, L.M, Grieser, N.A, Grillo, L, Gromov, S, Gruberg Cazon, B.R, Gu, C, Guarise, M, Guittiere, M, Günther, P.A, Gushchin, E, Guth, A, Guz, Y, Gys, T, Hadavizadeh, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Haimberger, J, Haines, S.C, Halewood-Leagas, T, Halvorsen, M.M, Hamilton, P.M, Hammerich, J, Han, Q, Han, X, Hansen, E.B, Hansmann-Menzemer, S, Hao, L, Harnew, N, Harrison, T, Hasse, C, Hatch, M, He, J, Heijhoff, K, Hemmer, F.H, Henderson, C, Henderson, R.D. 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G, O’neil, R.H, Otalora Goicochea, J.M, Ovsiannikova, T, Owen, P, Oyanguren, A, Ozcelik, O, Padeken, K.O, Pagare, B, Pais, P.R, Pajero, T, Palano, A, Palutan, M, Pan, Y, Panshin, G, Paolucci, L, Papanestis, A, Pappagallo, M, Pappalardo, L.L, Pappenheimer, C, Parker, W, Parkes, C, Passalacqua, B, Passaleva, G, Pastore, A, Patel, M, Patrignani, C, Pawley, C.J, Pearce, A, Pellegrino, A, Pepe Altarelli, M, Perazzini, S, Pereima, D, Pereiro Castro, A, Perret, P, Petridis, K, Petrolini, A, Petrov, A, Petrucci, S, Petruzzo, M, Pham, H, Philippov, A, Piandani, R, Pica, L, Piccini, M, Pietrzyk, B, Pietrzyk, G, Pili, M, Pinci, D, Pisani, F, Pizzichemi, M, Placinta, V, Plews, J, Plo Casasus, M, Polci, F, Poli Lener, M, Poliakova, M, Poluektov, A, Polukhina, N, Polyakov, I, Polycarpo, E, Ponce, S, Popov, D, Popov, S, Poslavskii, S, Prasanth, K, Promberger, L, Prouve, C, Pugatch, V, Puill, V, Punzi, G, Qi, H.R, Qian, W, Qin, N, Qu, S, Quagliani, R, Raab, N.V, Rachwal, B, Rademacker, J.H, Rajagopalan, R, Rama, M, Ramos Pernas, M, Rangel, M.S, Ratnikov, F, Raven, G, Rebollo de Miguel, M, Redi, F, Reich, J, Reiss, F, Remon Alepuz, C, Ren, Z, Resmi, P.K, Ribatti, R, Ricci, A.M, Ricciardi, S, Richardson, K, Richardson-Slipper, M, Rinnert, K, Robbe, P, Robertson, G, Rodrigues, A.B, Rodrigues, E, Rodriguez Fernandez, E, Rodriguez Lopez, J.A, Rodriguez Rodriguez, E, Rolf, D.L, Rollings, A, Roloff, P, Romanovskiy, V, Romero Lamas, M, Romero Vidal, A, Roth, J.D, Rotondo, M, Rudolph, M.S, Ruf, T, Ruiz Fernandez, R.A, Ruiz Vidal, J, Ryzhikov, A, Ryzka, J, Saborido Silva, J.J, Sagidova, N, Sahoo, N, Saitta, B, Salomoni, M, Sanchez Gras, C, Sanderswood, I, Santacesaria, R, Santamarina Rios, C, Santimaria, M, Santovetti, E, Saranin, D, Sarpis, G, Sarpis, M, Sarti, A, Satriano, C, Satta, A, Saur, M, Savrina, D, Sazak, H, Scantlebury Smead, L.G, Scarabotto, A, Schael, S, Scherl, S, Schiller, M, Schindler, H, Schmelling, M, Schmidt, B, Schmitt, S, Schneider, O, Schopper, A, Schubiger, M, Schulte, S, Schune, M.H, Schwemmer, R, Sciascia, B, Sciuccati, A, Sellam, S, Semennikov, A, Senghi Soares, M, Sergi, A, Serra, N, Sestini, L, Seuthe, A, Shang, Y, Shangase, D.M, Shapkin, M, Shchemerov, I, Shchutska, L, Shears, T, Shekhtman, L, Shen, Z, Sheng, S, Shevchenko, V, Shi, B, Shi, Q, Shields, E.B, Shimizu, Y, Shmanin, E, Shorkin, R, Shupperd, J.D, Siddi, B.G, Silva Coutinho, R, Simi, G, Simone, S, Singla, M, Skidmore, N, Skuza, R, Skwarnicki, T, Slater, M.W, Smallwood, J.C, Smeaton, J.G, Smith, E, Smith, K, Smith, M, Snoch, A, Soares Lavra, L, Sokoloff, M.D, Soler, F.J. P, Solomin, A, Solovev, A, Solovyev, I, Song, R, Souza de Almeida, F.L, Souza de Paula, B, Spaan, B, Spadaro Norella, E, Spedicato, E, Spiridenkov, E, Spradlin, P, Sriskaran, V, Stagni, F, Stahl, M, Stahl, S, Stanislaus, S, Stein, E.N, Steinkamp, O, Stenyakin, O, Stevens, H, Stone, S, Strekalina, D, Su, Y.S, Suljik, F, Sun, J, Sun, L, Sun, Y, Svihra, P, Swallow, P.N, Swientek, K, Szabelski, A, Szumlak, T, Szymanski, M, Tan, Y, Taneja, S, Tat, M.D, Terentev, A, Teubert, F, Thomas, E, Thompson, D.J. D, Thomson, K.A, Tilquin, H, Tisserand, V, T’jampens, S, Tobin, M, Tomassetti, L, Tonani, G, Tong, X, Torres Machado, D, Tou, D.Y, Trilov, S.M, Trippl, C, Tuci, G, Tully, A, Tuning, N, Ukleja, A, Unverzagt, D.J, Usachov, A, Ustyuzhanin, A, Uwer, U, Vagner, A, Vagnoni, V, Valassi, A, Valenti, G, Valls Canudas, N, van Dijk, M, van Hecke, H, van Herwijnen, E, van Hulse, C.B, van Veghel, M, Vazquez Gomez, R, Vazquez Regueiro, P, Vázquez Sierra, C, Vecchi, S, Velthuis, J.J, Veltri, M, Venkateswaran, A, Veronesi, M, Vesterinen, M, Vieira, D, Vieites Diaz, M, Vilasis-Cardona, X, Vilella Figueras, E, Villa, A, Vincent, P, Volle, F.C, Vom Bruch, D, Vorobyev, A, Vorobyev, V, Voropaev, N, Vos, K, Vrahas, C, Waldi, R, Walsh, J, Wan, G, Wang, C, Wang, G, Wang, J, Wang, M, Wang, R, Wang, X, Wang, Y, Wang, Z, Ward, J.A, Watson, N.K, Websdale, D, Wei, Y, Westhenry, B.D. C, White, D.J, Whitehead, M, Wiederhold, A.R, Wiedner, D, Wilkinson, G, Wilkinson, M.K, Williams, I, Williams, M, Williams, M.R. J, Williams, R, Wilson, F.F, Wislicki, W, Witek, M, Witola, L, Wong, C.P, Wormser, G, Wotton, S.A, Wu, H, Wu, J, Wyllie, K, Xiang, Z, Xiao, D, Xie, Y, Xu, A, Xu, J, Xu, L, Xu, M, Xu, Q, Xu, Z, Yang, D, Yang, S, Yang, X, Yang, Y, Yang, Z, Yeomans, L.E, Yeroshenko, V, Yeung, H, Yin, H, Yu, J, Yuan, X, Zaffaroni, E, Zavertyaev, M, Zdybal, M, Zenaiev, O, Zeng, M, Zhang, C, Zhang, D, Zhang, L, Zhang, S, Zhang, Y, Zharkova, A, Zhelezov, A, Zheng, Y, Zhou, T, Zhou, X, Zhou, Y, Zhovkovska, V, Zhu, X, Zhu, Z, Zhukov, V, Zou, Q, Zucchelli, S, Zuliani, D, Zunica, G, Laboratoire de Physique de Clermont (LPC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), and LHCb

Subjects
J/psi(3100), p p: scattering, Hadron-Hadron Scattering, 13000 GeV-cms, Flavour Physics, branching ratio: ratio: measured, B Physics, +B%2Fs0+pi%2B%22">B/c+ --> B/s0 pi+, B/c+: hadronic decay, B/c: decay modes, pi+, +D%2Fs-+pi%2B%22">B/s0 --> D/s- pi+, LHC-B, +J%2Fpsi%283100%29+Phi%281020%29%22">B/s0 --> J/psi(3100) Phi(1020), intermediate state, error: statistical, CERN LHC Coll, B/s0: hadronic decay, B/s0: decay modes, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Branching fraction, +J%2Fpsi%283100%29+pi%2B%22">B/c+ --> J/psi(3100) pi+, p p: colliding beams, B/c: branching ratio, experimental results
Abstract

International audience; The ratio of branching fractions of $ {B}_c^{+}\to {B}_s^0{\pi}^{+} $ and $ {B}_c^{+}\to J/\psi {\pi}^{+} $ decays is measured with proton-proton collision data of a centre-of-mass energy of 13 TeV. The data were collected with the LHCb experiment during 2016–2018, corresponding to an integrated luminosity of 5.4 fb$^{−1}$. The $ {B}_s^0 $ mesons are reconstructed via the decays $ {B}_s^0\to J/\psi \phi $ and $ {B}_s^0\to {D}_s^{-}{\pi}^{+} $. The ratio of branching fractions is measured to be $ \mathcal{B}\left({B}_c^{+}\to {B}_s^0{\pi}^{+}\right)/\mathcal{B}\left({B}_c^{+}\to J/\psi {\pi}^{+}\right)=91\pm 10\pm 8\pm 3 $ where the first uncertainty is statistical, the second is systematic and the third is due to the knowledge of the branching fractions of the intermediate state decays.[graphic not available: see fulltext]

Published
2023

27. Measurement of Υ production in pp collisions at $ \sqrt{s} $ = 5 TeV

Author

Aaij, R, Abdelmotteleb, A.S. W, Abellan Beteta, C, Abudinén, F, Ackernley, T, Adeva, B, Adinolfi, M, Adlarson, P, Afsharnia, H, Agapopoulou, C, Aidala, C.A, Ajaltouni, Z, Akar, S, Akiba, K, Albicocco, P, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Aliouche, Z, Alvarez Cartelle, P, Amalric, R, Amato, S, Amey, J.L, Amhis, Y, An, L, Anderlini, L, Andersson, M, Andreianov, A, Andreotti, M, Andreou, D, Ao, D, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Atzeni, M, Audurier, B, Bachiller Perea, I.B, Bachmann, S, Bachmayer, M, Back, J.J, Bailly-Reyre, A, Baladron Rodriguez, P, Balagura, V, Baldini, W, Baptista de Souza Leite, J, Barbetti, M, Barlow, R.J, Barsuk, S, Barter, W, Bartolini, M, Baryshnikov, F, Basels, J.M, Bassi, G, Batsukh, B, Battig, A, Bay, A, Beck, A, Becker, M, Bedeschi, F, Bediaga, I.B, Beiter, A, Belavin, V, Belin, S, Bellee, V, Belous, K, Belov, I, Belyaev, I, Benane, G, Bencivenni, G, Ben-Haim, E, Berezhnoy, A, Bernet, R, Bernet Andres, S, Berninghoff, D, Bernstein, H.C, Bertella, C, Bertolin, A, Betancourt, C, Betti, F, Bezshyiko, Ia, Bhasin, S, Bhom, J, Bian, L, Bieker, M.S, Biesuz, N.V, Billoir, P, Biolchini, A, Birch, M, Bishop, F.C. R, Bitadze, A, Bizzeti, A, Blago, M.P, Blake, T, Blanc, F, Blank, J.E, Blusk, S, Bobulska, D, Boelhauve, J.A, Boente Garcia, O, Boettcher, T, Boldyrev, A, Bolognani, C.S, Bolzonella, R, Bondar, N, Borgato, F, Borghi, S, Borsato, M, Borsuk, J.T, Bouchiba, S.A, Bowcock, T.J. 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Subjects
p p: scattering, Upsilon(9460): hadroproduction, upsilon mesons: hadroproduction, Quarkonium, Heavy Quark Production, transverse momentum dependence, rapidity dependence, differential cross section: measured, Upsilon(9460): leptonic decay, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 5000 GeV-cms, Upsilon(10020): hadroproduction, upsilon mesons: decay modes, Hadron-Hadron Scattering, nuclear matter: effect, QCD, LHC-B, channel cross section: branching ratio: measured, Upsilon(10020): leptonic decay, muon: pair production, error: statistical, CERN LHC Coll, cross section: ratio: measured, Upsilon(10355): hadroproduction, Upsilon(10355): leptonic decay, p p: colliding beams, experimental results
Abstract

International audience; The production cross-sections of Υ mesons, namely Υ(1S), Υ(2S) and Υ(3S), in pp collisions at $ \sqrt{s} $ = 5 TeV are measured with a data sample corresponding to an integrated luminosity of 9.13 ± 0.18 pb$^{−1}$ collected by the LHCb detector. The Υ mesons are reconstructed in the decay mode Υ → μ$^{+}$μ$^{−}$. Double differential cross-sections times branching fractions, as functions of the transverse momentum p$_{T}$ and the rapidity y of the Υ mesons, are measured in the range p$_{T}$< 20 GeV/c and 2.0 < y < 4.5. The results integrated over these p$_{T}$ and y ranges are$ \sigma \left(\textrm{Y}(1S)\right)\times \mathcal{B}\left(\textrm{Y}(1S)\to {\mu}^{+}{\mu}^{-}\right)=2101\pm 33\pm 83\ \textrm{pb}, \sigma \left(\textrm{Y}(2S)\right)\times \mathcal{B}\left(\textrm{Y}(2S)\to {\mu}^{+}{\mu}^{-}\right)=526\pm 20\pm 21\ \textrm{pb}, \sigma \left(\textrm{Y}(3S)\right)\times \mathcal{B}\left(\textrm{Y}(3S)\to {\mu}^{+}{\mu}^{-}\right)=242\pm 16\pm 10\ \textrm{pb}, $where the first uncertainties are statistical and the second are systematic. The ratios of cross-sections between measurements of two different Υ states and between measurements at different centre-of-mass energies are determined. The nuclear modification factor of Υ(1S) at $ \sqrt{s} $ = 5 TeV is updated as well using the directly measured cross-section results from this analysis.[graphic not available: see fulltext]

Published
2023

28. Search for the weak decay *

Author

Ablikim, M., Achasov, M.N., Adlarson, P., Albrecht, M., Aliberti, R., Amoroso, A., An, M.R., An, Q., Bai, X.H., Bai, Y., Bakina, O., Baldini Ferroli, R., Balossino, I., Ban, Y., Batozskaya, V., Becker, D., Begzsuren, K., Berger, N., Bertani, M., Bettoni, D., Bianchi, F., Bloms, J., Bortone, A., Boyko, I., Briere, R.A., Brueggemann, A., Cai, H., Cai, X., Calcaterra, A., Cao, G.F., Cao, N., Cetin, S.A., Chang, J.F., Chang, W.L., Chelkov, G., Chen, C., Chen, Chao, Chen, G., Chen, H.S., Chen, M.L., Chen, S.J., Chen, S.M., Chen, T., Chen, X.R., Chen, X.T., Chen, Y.B., Chen, Z.J., Cheng, W.S., Chu, X., Cibinetto, G., Cossio, F., Cui, J.J., Dai, H.L., Dai, J.P., Dbeyssi, A., de Boer, R.E., Dedovich, D., Deng, Z.Y., Denig, A., Denysenko, I., Destefanis, M., De Mori, F., Ding, Y., Dong, J., Dong, L.Y., Dong, M.Y., Dong, X., Du, S.X., Egorov, P., Fan, Y.L., Fang, J., Fang, S.S., Fang, W.X., Fang, Y., Farinelli, R., Fava, L., Feldbauer, F., Felici, G., Feng, C.Q., Feng, J.H., Fischer, K, Fritsch, M., Fritzsch, C., Fu, C.D., Gao, H., Gao, Y.N., Gao, Yang, Garbolino, S., Garzia, I., Ge, P.T., Ge, Z.W., Geng, C., Gersabeck, E.M., Gilman, A, Goetzen, K., Gong, L., Gong, W.X., Gradl, W., Greco, M., Gu, L.M., Gu, M.H., Gu, Y.T., Y Guan, C., Guo, A.Q., Guo, L.B., Guo, R.P., Guo, Y.P., Guskov, A., Han, T.T., Han, W.Y., Hao, X.Q., Harris, F.A., He, K.K., He, K.L., Heinsius, F.H., Heinz, C.H., Heng, Y.K., Herold, C., Himmelreich, M., Hou, G.Y., Hou, Y.R., Hou, Z.L., Hu, H.M., Hu, J.F., Hu, T., Hu, Y., Huang, G.S., Huang, K.X., Huang, L.Q., Huang, X.T., Huang, Y.P., Huang, Z., Hussain, T., Hüsken, N, Imoehl, W., Irshad, M., Jackson, J., Jaeger, S., Janchiv, S., Ji, Q., Ji, Q.P., Ji, X.B., Ji, X.L., Ji, Y.Y., Jia, Z.K., Jiang, H.B., Jiang, S.S., Jiang, X.S., Jiang, Y., Jiao, J.B., Jiao, Z., Jin, S., Jin, Y., Jing, M.Q., Johansson, T., Kalantar-Nayestanaki, N., Kang, X.S., Kappert, R., Ke, B.C., Keshk, I.K., Khoukaz, A., Kiese, P., Kiuchi, R., Kliemt, R., Koch, L., Kolcu, O.B., Kopf, B., Kuemmel, M., Kuessner, M., Kupsc, A., Kühn, W., Lane, J.J., Lange, J.S., Larin, P., Lavania, A., Lavezzi, L., Lei, Z.H., Leithoff, H., Lellmann, M., Lenz, T., Li, C., Li, C.H., Li, Cheng, Li, D.M., Li, F., Li, G., Li, H., Li, H.B., Li, H.J., Li, H.N., Li, J.Q., Li, J.S., Li, J.W., Li, Ke, Li, L.J., Li, L.K., Li, Lei, Li, M.H., Li, P.R., Li, S.X., Li, S.Y., Li, T., Li, W.D., Li, W.G., Li, X.H., Li, X.L., Li, Xiaoyu, Liang, H., Liang, Y.F., Liang, Y.T., Liao, G.R., Liao, L.Z., Libby, J., Limphirat, A., Lin, C.X., Lin, D.X., Lin, T., Liu, B.J., Liu, C.X., Liu, D., Liu, F.H., Liu, Fang, Liu, Feng, Liu, G.M., Liu, H., Liu, H.B., Liu, H.M., Liu, Huanhuan, Liu, Huihui, Liu, J.B., Liu, J.L., Liu, J.Y., Liu, K., Liu, K.Y., Liu, Ke, Liu, L., Liu, Lu, Liu, M.H., Liu, P.L., Liu, Q., Liu, S.B., Liu, T., Liu, W.K., Liu, W.M., Liu, X., Liu, Y., Liu, Y.B., Liu, Z.A., Liu, Z.Q., Lou, X.C., Lu, F.X., Lu, H.J., Lu, J.G., Lu, X.L., Lu, Y., Lu, Y.P., Lu, Z.H., Luo, C.L., Luo, M.X., Luo, T., Luo, X.L., Lyu, X.R., Lyu, Y.F., Ma, F.C., Ma, H.L., Ma, L.L., Ma, M.M., Ma, Q.M., Ma, R.Q., Ma, R.T., Ma, X.Y., Ma, Y., Maas, F.E., Maggiora, M., Maldaner, S., Malde, S., Malik, Q.A., Mangoni, A., Mao, Y.J., Mao, Z.P., Marcello, S., Meng, Z.X., Messchendorp, J.G., Mezzadri, G., Miao, H., Min, T.J., Mitchell, R.E., Mo, X.H., Muchnoi, N. Yu., Nefedov, Y., Nerling, F., Nikolaev, I.B., Ning, Z., Nisar, S., Niu, Y., Olsen, S.L., Ouyang, Q., Pacetti, S., Pan, X., Pan, Y., Pathak, A., Pelizaeus, M., Peng, H.P., Peters, K., Ping, J.L., Ping, R.G., Plura, S., Pogodin, S., Prasad, V., Qi, F.Z., Qi, H., Qi, H.R., Qi, M., Qi, T.Y., Qian, S., Qian, W.B., Qian, Z., Qiao, C.F., Qin, J.J., Qin, L.Q., Qin, X.P., Qin, X.S., Qin, Z.H., Qiu, J.F., Qu, S.Q., Rashid, K.H., Redmer, C.F., Ren, K.J., Rivetti, A., Rodin, V., Rolo, M., Rong, G., Rosner, Ch., Ruan, S.N., Sang, H.S., Sarantsev, A., Schelhaas, Y., Schnier, C., Schoenning, K., Scodeggio, M., Shan, K.Y., Shan, W., Shan, X.Y., Shangguan, J.F., Shao, L.G., Shao, M., Shen, C.P., Shen, H.F., Shen, X.Y., Shi, B.A., Shi, H.C., Shi, J.Y., Shi, q. q., Shi, R.S., Shi, X., D Shi, X., Song, J.J., Song, W.M., Song, Y.X., Sosio, S., Spataro, S., Stieler, F., Su, K.X., Su, P.P., Su, Y.J., Sun, G.X., Sun, H., Sun, H.K., Sun, J.F., Sun, L., Sun, S.S., Sun, T., Sun, W.Y., Sun, X, Sun, Y.J., Sun, Y.Z., Sun, Z.T., Tan, Y.H., Tan, Y.X., Tang, C.J., Tang, G.Y., Tang, J., Y Tao, L., Tao, Q.T., Tat, M., Teng, J.X., Thoren, V., Tian, W.H., Tian, Y., Uman, I., Wang, B., Wang, B.L., Wang, C.W., Wang, D.Y., Wang, F., Wang, H.J., Wang, H.P., Wang, K., Wang, L.L., Wang, M., Wang, M.Z., Wang, Meng, Wang, S., Wang, T., Wang, T.J., Wang, W., Wang, W.H., Wang, W.P., Wang, X., Wang, X.F., Wang, X.L., Wang, Y., Wang, Y.D., Wang, Y.F., Wang, Y.H., Wang, Y.Q., Wang, Yaqian, Wang, Z., Wang, Z.Y., Wang, Ziyi, Wei, D.H., Weidner, F., Wen, S.P., White, D.J., Wiedner, U., Wilkinson, G., Wolke, M., Wollenberg, L., Wu, J.F., Wu, L.H., Wu, L.J., Wu, X., Wu, X.H., Wu, Y., Wu, Z., Xia, L., Xiang, T., Xiao, D., Xiao, G.Y., Xiao, H., Xiao, S.Y., Xiao, Y.L., Xiao, Z.J., Xie, C., Xie, X.H., Xie, Y., Xie, Y.G., Xie, Y.H., Xie, Z.P., Xing, T.Y., Xu, C.F., Xu, C.J., Xu, G.F., Xu, H.Y., Xu, Q.J., Xu, X.P., Xu, Y.C., Xu, Z.P., Yan, F., Yan, L., Yan, W.B., Yan, W.C., Yang, H.J., Yang, H.L., Yang, H.X., Yang, L., Yang, S.L., Yang, Tao, Yang, Y.F., Yang, Y.X., Yang, Yifan, Ye, M., Ye, M.H., Yin, J.H., You, Z.Y., Yu, B.X., Yu, C.X., Yu, G., Yu, T., Yuan, C.Z., Yuan, L., Yuan, S.C., Yuan, X.Q., Yuan, Y., Yuan, Z.Y., Yue, C.X., Zafar, A.A., Zeng, F.R., Zeng, X., Zeng, Y., Zhan, Y.H., Zhang, A.Q., Zhang, B.L., Zhang, B.X., Zhang, D.H., Zhang, G.Y., Zhang, H., Zhang, H.H., Zhang, H.Y., Zhang, J.L., Zhang, J.Q., Zhang, J.W., Zhang, J.X., Zhang, J.Y., Zhang, J.Z., Zhang, Jianyu, Zhang, Jiawei, Zhang, L.M., Zhang, L.Q., Zhang, Lei, Zhang, P., Zhang, Q.Y., Zhang, Shuihan, Zhang, Shulei, Zhang, X.D., Zhang, X.M., Zhang, X.Y., Zhang, Y., Zhang, Y.T., Zhang, Y.H., Zhang, Yan, Zhang, Yao, Zhang, Z.H., Zhang, Z.Y., Zhao, G., Zhao, J., Zhao, J.Y., Zhao, J.Z., Zhao, Lei, Zhao, Ling, Zhao, M.G., Zhao, Q., Zhao, S.J., Zhao, Y.B., Zhao, Y.X., Zhao, Z.G., Zhemchugov, A., Zheng, B., Zheng, J.P., Zheng, Y.H., Zhong, B., Zhong, C., Zhong, X., Zhou, H., Zhou, L.P., Zhou, X., Zhou, X.K., Zhou, X.R., Zhou, X.Y., Zhou, Y.Z., Zhu, J., Zhu, K., Zhu, K.J., Zhu, L.X., Zhu, S.H., Zhu, S.Q., Zhu, T.J., Zhu, W.J., Zhu, Y.C., Zhu, Z.A., Zou, B.S., Zou, J.H., and (BESIII Collaboration)

Subjects
Nuclear and High Energy Physics, Astronomy and Astrophysics, BESIII detector, weak decay, Instrumentation, upper limit
Abstract

Using events collected with the BESIII detector, we perform the first search for the weak baryonic decay . The analysis procedure is optimized using a blinded method. No significant signal is observed, and the upper limit on the branching fraction ( ) of is set as at the 90% confidence level.

Published
2023

29. Measurement of the Z boson production cross-section in proton-lead collisions at $ \sqrt{s_{\textrm{NN}}} $ = 8.16 TeV

Author

Aaij, R, Abdelmotteleb, A.S. W, Abellan Beteta, C, Abudinén, F, Ackernley, T, Adeva, B, Adinolfi, M, Afsharnia, H, Agapopoulou, C, Aidala, C.A, Aiola, S, Ajaltouni, Z, Akar, S, Akiba, K, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Aliouche, Z, Alvarez Cartelle, P, Amalric, R, Amato, S, Amey, J.L, Amhis, Y, An, L, Anderlini, L, Andersson, M, Andreianov, A, Andreotti, M, Andreou, D, Ao, D, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Atzeni, M, Audurier, B, Bachmann, S, Bachmayer, M, Back, J.J, Bailly-Reyre, A, Baladron Rodriguez, P, Balagura, V, Baldini, W, Baptista de Souza Leite, J, Barbetti, M, Barlow, R.J, Barsuk, S, Barter, W, Bartolini, M, Baryshnikov, F, Basels, J.M, Bassi, G, Batsukh, B, Battig, A, Bay, A, Beck, A, Becker, M, Bedeschi, F, Bediaga, I.B, Beiter, A, Belavin, V, Belin, S, Bellee, V, Belous, K, Belov, I, Belyaev, I, Bencivenni, G, Ben-Haim, E, Berezhnoy, A, Bernet, R, Berninghoff, D, Bernstein, H.C, Bertella, C, Bertolin, A, Betancourt, C, Betti, F, Bezshyiko, Ia, Bhasin, S, Bhom, J, Bian, L, Bieker, M.S, Biesuz, N.V, Bifani, S, Billoir, P, Biolchini, A, Birch, M, Bishop, F.C. R, Bitadze, A, Bizzeti, A, Blago, M.P, Blake, T, Blanc, F, Blusk, S, Bobulska, D, Boelhauve, J.A, Boente Garcia, O, Boettcher, T, Boldyrev, A, Bolognani, C.S, Bondar, N, Borghi, S, Borsato, M, Borsuk, J.T, Bouchiba, S.A, Bowcock, T.J. V, Boyer, A, Bozzi, C, Bradley, M.J, Braun, S, Brea Rodriguez, A, Brodzicka, J, Brossa Gonzalo, A, Brundu, D, Buonaura, A, Buonincontri, L, Burke, A.T, Burr, C, Bursche, A, Butkevich, A, Butter, J.S, Buytaert, J, Byczynski, W, Cadeddu, S, Cai, H, Calabrese, R, Calefice, L, Cali, S, Calladine, R, Calvi, M, Calvo Gomez, M, Camargo Magalhaes, P, Campana, P, Campora Perez, D.H, Campoverde Quezada, A.F, Capelli, S, Capriotti, L, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carli, I, Carniti, P, Carus, L, Casais Vidal, A, Caspary, R, Casse, G, Cattaneo, M, Cavallero, G, Cavallini, V, Celani, S, Cerasoli, J, Cervenkov, D, Chadwick, A.J, Chapman, M.G, Charles, M, Charpentier, Ph, Chavez Barajas, C.A, Chefdeville, M, Chen, C, Chen, S, Chernov, A, Chernyshenko, S, Chobanova, V, Cholak, S, Chrzaszcz, M, Chubykin, A, Chulikov, V, Ciambrone, P, Cicala, M.F, Cid Vidal, X, Ciezarek, G, Ciullo, G, Clarke, P.E. L, Clemencic, M, Cliff, H.V, Closier, J, Cobbledick, J.L, Coco, V, Coelho, J.A. B, Cogan, J, Cogneras, E, Cojocariu, L, Collins, P, Colombo, T, Congedo, L, Contu, A, Cooke, N, Coombs, G, Corredoira, I, Corti, G, Couturier, B, Craik, D.C, Crkovská, J, Cruz Torres, M, Currie, R, da Silva, C.L, Dadabaev, S, Dai, L, Dall’occo, E, Dalseno, J, D’ambrosio, C, Danilina, A, D’argent, P, Davies, J.E, Davis, A, de Aguiar Francisco, O, de Boer, J, de Bruyn, K, de Capua, S, de Cian, M, de Freitas Carneiro da Graca, U, de Lucia, E, de Miranda, J.M, de Paula, L, de Serio, M, de Simone, D, de Simone, P, de Vellis, F, de Vries, J.A, Dean, C.T, Debernardis, F, Decamp, D, Dedu, V, del Buono, L, Delaney, B, Dembinski, H.P, Denysenko, V, Deschamps, O, Dettori, F, Dey, B, Di Cicco, A, Di Nezza, P, Diachkov, I, Didenko, S, Dieste Maronas, L, Ding, S, Dobishuk, V, Dolmatov, A, Dong, C, Donohoe, A.M, Dordei, F, dos Reis, A.C, Douglas, L, Downes, A.G, Dudek, M.W, Dufour, L, Duk, V, Durante, P, Durham, J.M, Dutta, D, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Eisenhardt, S, Ek-In, S, Eklund, L, Ely, S, Ene, A, Epple, E, Escher, S, Eschle, J, Esen, S, Evans, T, Falcao, L.N, Fan, Y, Fang, B, Farry, S, Fazzini, D, Feo, M, Fernez, A.D, Ferrari, F, Ferreira Lopes, L, Ferreira Rodrigues, F, Ferreres Sole, S, Ferrillo, M, Ferro-Luzzi, M, Filippov, S, Fini, R.A, Fiorini, M, Firlej, M, Fischer, K.M, Fitzgerald, D.S, Fitzpatrick, C, Fiutowski, T, Fleuret, F, Fontana, M, Fontanelli, F, Forty, R, Foulds-Holt, D, Franco Lima, V, Franco Sevilla, M, Frank, M, Franzoso, E, Frau, G, Frei, C, Friday, D.A, Fu, J, Fuehring, Q, Gabriel, E, Galati, G, Galati, M.D, Gallas Torreira, A, Galli, D, Gambetta, S, Gan, Y, Gandelman, M, Gandini, P, Gao, Y, Garau, M, Garcia Martin, L.M, Garcia Moreno, P, García Pardiñas, J, Garcia Plana, B, Garcia Rosales, F.A, Garrido, L, Gaspar, C, Geertsema, R.E, Gerick, D, Gerken, L.L, Gersabeck, E, Gersabeck, M, Gershon, T, Giambastiani, L, Gibson, V, Giemza, H.K, Gilman, A.L, Giovannetti, M, Gioventù, A, Gironella Gironell, P, Giugliano, C, Giza, M.A, Gizdov, K, Gkougkousis, E.L, Gligorov, V.V, Göbel, C, Golobardes, E, Golubkov, D, Golutvin, A, Gomes, A, Gomez Fernandez, S, Goncalves Abrantes, F, Goncerz, M, Gong, G, Gorelov, I.V, Gotti, C, Grabowski, J.P, Grammatico, T, Granado Cardoso, L.A, Graugés, E, Graverini, E, Graziani, G, Grecu, A.T, Greeven, L.M, Grieser, N.A, Grillo, L, Gromov, S, Gruberg Cazon, B.R, Gu, C, Guarise, M, Guittiere, M, Günther, P.A, Gushchin, E, Guth, A, Guz, Y, Gys, T, Hadavizadeh, T, Haefeli, G, Haen, C, Haimberger, J, Haines, S.C, Halewood-Leagas, T, Halvorsen, M.M, Hamilton, P.M, Hammerich, J, Han, Q, Han, X, Hansen, E.B, Hansmann-Menzemer, S, Hao, L, Harnew, N, Harrison, T, Hasse, C, Hatch, M, He, J, Heijhoff, K, Heinicke, K, Henderson, R.D. L, Hennequin, A.M, Hennessy, K, Henry, L, Heuel, J, Hicheur, A, Hill, D, Hilton, M, Hollitt, S.E, Hou, R, Hou, Y, Hu, J, Hu, W, Hu, X, Huang, W, Huang, X, Hulsbergen, W, Hunter, R.J, Hushchyn, M, Hutchcroft, D, Ibis, P, Idzik, M, Ilin, D, Ilten, P, Inglessi, A, Iniukhin, A, Ishteev, A, Ivshin, K, Jacobsson, R, Jage, H, Jaimes Elles, S.J, Jakobsen, S, Jans, E, Jashal, B.K, Jawahery, A, Jevtic, V, Jiang, X, Jiang, Y, John, M, Johnson, D, Jones, C.R, Jones, T.P, Jost, B, Jurik, N, Juszczak, I, Kandybei, S, Kang, Y, Karacson, M, Karpenkov, D, Karpov, M, Kautz, J.W, Keizer, F, Keller, D.M, Kenzie, M, Ketel, T, Khanji, B, Kharisova, A, Kholodenko, S, Kirn, T, Kirsebom, V.S, Kitouni, O, Klaver, S, Kleijne, N, Klimaszewski, K, Kmiec, M.R, Koliiev, S, Kondybayeva, A, Konoplyannikov, A, Kopciewicz, P, Kopecna, R, Koppenburg, P, Korolev, M, Kostiuk, I, Kot, O, Kotriakhova, S, Kozachuk, A, Kravchenko, P, Kravchuk, L, Krawczyk, R.D, Kreps, M, Kretzschmar, S, Krokovny, P, Krupa, W, Krzemien, W, Kubat, J, Kucewicz, W, Kucharczyk, M, Kudryavtsev, V, Kunde, G.J, Lacarrere, D, Lafferty, G, Lai, A, Lampis, A, Lancierini, D, Lane, J.J, Lane, R, Lanfranchi, G, Langenbruch, C, Langer, J, Lantwin, O, Latham, T, Lazzari, F, Lazzaroni, M, Le Gac, R, Lee, S.H, Lefèvre, R, Leflat, A, Legotin, S, Lenisa, P, Leroy, O, Lesiak, T, Leverington, B, Li, H, Li, K, Li, P, Li, S, Li, T, Li, Y, Li, Z, Liang, X, Lin, C, Lin, T, Lindner, R, Lisovskyi, V, Litvinov, R, Liu, G, Liu, H, Liu, Q, Liu, S, Lobo Salvia, A, Loi, A, Lollini, R, Lomba Castro, J, Longstaff, I, Lopes, J.H, López Soliño, S, Lovell, G.H, Lu, Y, Lucarelli, C, Lucchesi, D, Luchuk, S, Lucio Martinez, M, Lukashenko, V, Luo, Y, Lupato, A, Luppi, E, Lusiani, A, Lynch, K, Lyu, X.R, Ma, L, Ma, R, Maccolini, S, Machefert, F, Maciuc, F, Macko, V, Mackowiak, P, Maddrell-Mander, S, Madhan Mohan, L.R, Maevskiy, A, Maisuzenko, D, Majewski, M.W, Malczewski, J.J, Malde, S, Malecki, B, Malinin, A, Maltsev, T, Malygina, H, Manca, G, Mancinelli, G, Manuzzi, D, Manzari, C.A, Marangotto, D, Marchand, J.F, Marconi, U, Mariani, S, Marin Benito, C, Marinangeli, M, Marks, J, Marshall, A.M, Marshall, P.J, Martelli, G, Martellotti, G, Martinazzoli, L, Martinelli, M, Martinez Santos, D, Martinez Vidal, F, Massafferri, A, Materok, M, Matev, R, Mathad, A, Matiunin, V, Matteuzzi, C, Mattioli, K.R, Mauri, A, Maurice, E, Mauricio, J, Mazurek, M, Mccann, M, Mcconnell, L, Mcgrath, T.H, Mchugh, N.T, Mcnab, A, Mcnulty, R, Mead, J.V, Meadows, B, Meier, G, Melnychuk, D, Meloni, S, Merk, M, Merli, A, Meyer Garcia, L, Miao, D, Mikhasenko, M, Milanes, D.A, Millard, E, Milovanovic, M, Minard, M.N, Minotti, A, Mitchell, S.E, Mitreska, B, Mitzel, D.S, Mödden, A, Mohammed, R.A, Moise, R.D, Mokhnenko, S, Mombächer, T, Monroy, I.A, Monteil, S, Morandin, M, Morello, G, Morello, M.J, Moron, J, Morris, A.B, Morris, A.G, Mountain, R, Mu, H, Muheim, F, Mulder, M, Müller, K, Murphy, C.H, Murray, D, Murta, R, Muzzetto, P, Naik, P, Nakada, T, Nandakumar, R, Nanut, T, Nasteva, I, Needham, M, Neri, N, Neubert, S, Neufeld, N, Neustroev, P, Newcombe, R, Niel, E.M, Nieswand, S, Nikitin, N, Nolte, N.S, Normand, C, Nunez, C, Oblakowska-Mucha, A, Obraztsov, V, Oeser, T, O’hanlon, D.P, Okamura, S, Oldeman, R, Oliva, F, Olivares, M.E, Onderwater, C.J. 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J, Williams, R, Wilson, F.F, Wislicki, W, Witek, M, Witola, L, Wong, C.P, Wormser, G, Wotton, S.A, Wu, H, Wyllie, K, Xian, S, Xiang, Z, Xiao, D, Xie, Y, Xu, A, Xu, J, Xu, L, Xu, M, Xu, Q, Xu, Z, Yang, D, Yang, S, Yang, Y, Yang, Z, Yeomans, L.E, Yin, H, Yu, J, Yuan, X, Zaffaroni, E, Zavertyaev, M, Zdybal, M, Zenaiev, O, Zeng, M, Zhang, D, Zhang, L, Zhang, S, Zhang, Y, Zharkova, A, Zhelezov, A, Zheng, Y, Zhou, T, Zhou, X, Zhou, Y, Zhovkovska, V, Zhu, Q, Zhu, X, Zhu, Z, Zhukov, V, Zou, Q, Zucchelli, S, Zuliani, D, Zunica, G, Laboratoire de Physique de Clermont (LPC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), and LHCb

Subjects
p nucleus: interaction, FOS: Physical sciences, parton: distribution function, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], nucl-ex, transverse momentum dependence, High Energy Physics - Experiment, rapidity dependence, differential cross section: measured, High Energy Physics - Experiment (hep-ex), Heavy Ion Experiments, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Nuclear Physics - Experiment, Nuclear Experiment (nucl-ex), Nuclear Experiment, lead, hep-ex, Electroweak Interaction, Z0: hadroproduction, nuclear matter: effect, 8160 GeV-cms/nucleon, LHC-B, CERN LHC Coll, Z0: transverse momentum, High Energy Physics::Experiment, Heavy-Ion Collision, Particle Physics - Experiment, experimental results
Abstract

This article presents the first measurement of the differential $Z$-boson production cross-section in the forward region using proton-lead collisions with the LHCb detector. The dataset was collected at a nucleon-nucleon centre-of-mass energy of $\sqrt{s_\mathrm{NN}}=8.16\,\mathrm{TeV}$ in 2016, corresponding to an integrated luminosity of $30.8\,\mathrm{nb}^{-1}$. The forward-backward ratio and the nuclear modification factors are measured together with the differential cross-section as functions of the $Z$ boson rapidity in the centre-of-mass frame, the transverse momentum of the $Z$ boson and a geometric variable $\phi^{*}$. The results are in good agreement with the predictions from nuclear parton distribution functions, providing strong constraining power at small Bjorken-$x$., Comment: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-009.html (LHCb public pages)

Published
2023

30. Measurement of CP asymmetries in $ {D}_{(s)}^{+}\to \eta {\pi}^{+} $ and $ {D}_{(s)}^{+}\to {\eta}^{\prime }{\pi}^{+} $ decays

Author

Aaij, R, Abdelmotteleb, A.S. 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B, Cogan, J, Cogneras, E, Cojocariu, L, Collins, P, Colombo, T, Congedo, L, Contu, A, Cooke, N, Coombs, G, Corredoira, I, Corti, G, Costa Sobral, C.M, Couturier, B, Craik, D.C, Crkovská, J, Cruz Torres, M, Currie, R, da Silva, C.L, Dadabaev, S, Dai, L, Dall’occo, E, Dalseno, J, D’ambrosio, C, Danilina, A, D’argent, P, Davies, J.E, Davis, A, de Aguiar Francisco, O, de Boer, J, de Bruyn, K, de Capua, S, de Cian, M, de Freitas Carneiro da Graca, U, de Lucia, E, de Miranda, J.M, de Paula, L, de Serio, M, de Simone, D, de Simone, P, de Vellis, F, de Vries, J.A, Dean, C.T, Debernardis, F, Decamp, D, Dedu, V, del Buono, L, Delaney, B, Dembinski, H.P, Denysenko, V, Deschamps, O, Dettori, F, Dey, B, Di Cicco, A, Di Nezza, P, Didenko, S, Dieste Maronas, L, Dijkstra, H, Ding, S, Dobishuk, V, Dong, C, Donohoe, A.M, Dordei, F, dos Reis, A.C, Douglas, L, Downes, A.G, Dudek, M.W, Dufour, L, Duk, V, Durante, P, Durham, J.M, Dutta, D, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Eisenhardt, S, Ek-In, S, Eklund, L, Ely, S, Ene, A, Epple, E, Escher, S, Eschle, J, Esen, S, Evans, T, Falcao, L.N, Fan, Y, Fang, B, Farry, S, Fazzini, D, Feo, M, Fernandez Prieto, A, Fernez, A.D, Ferrari, F, Ferreira Lopes, L, Ferreira Rodrigues, F, Ferreres Sole, S, Ferrillo, M, Ferro-Luzzi, M, Filippov, S, Fini, R.A, Fiorini, M, Firlej, M, Fischer, K.M, Fitzgerald, D.S, Fitzpatrick, C, Fiutowski, T, Fleuret, F, Fontana, M, Fontanelli, F, Forty, R, Foulds-Holt, D, Franco Lima, V, Franco Sevilla, M, Frank, M, Franzoso, E, Frau, G, Frei, C, Friday, D.A, Fu, J, Fuehring, Q, Gabriel, E, Galati, G, Gallas Torreira, A, Galli, D, Gambetta, S, Gan, Y, Gandelman, M, Gandini, P, Gao, Y, Garau, M, Garcia Martin, L.M, Garcia Moreno, P, García Pardiñas, J, Garcia Plana, B, Garcia Rosales, F.A, Garrido, L, Gaspar, C, Geertsema, R.E, Gerick, D, Gerken, L.L, Gersabeck, E, Gersabeck, M, Gershon, T, Gerstel, D, Giambastiani, L, Gibson, V, Giemza, H.K, Gilman, A.L, Giovannetti, M, Gioventù, A, Gironella Gironell, P, Giugliano, C, Gizdov, K, Gkougkousis, E.L, Gligorov, V.V, Göbel, C, Golobardes, E, Golubkov, D, Golutvin, A, Gomes, A, Gomez Fernandez, S, Goncalves Abrantes, F, Goncerz, M, Gong, G, Gorelov, I.V, Gotti, C, Grabowski, J.P, Grammatico, T, Granado Cardoso, L.A, Graugés, E, Graverini, E, Graziani, G, Grecu, A.T, Greeven, L.M, Grieser, N.A, Grillo, L, Gromov, S, Gruberg Cazon, B.R, Gu, C, Guarise, M, Guittiere, M, Günther, P.A, Gushchin, E, Guth, A, Guz, Y, Gys, T, Hadavizadeh, T, Haefeli, G, Haen, C, Haimberger, J, Haines, S.C, Halewood-Leagas, T, Halvorsen, M.M, Hamilton, P.M, Hammerich, J, Han, Q, Han, X, Hansen, E.B, Hansmann-Menzemer, S, Harnew, N, Harrison, T, Hasse, C, Hatch, M, He, J, Hecker, M, Heijhoff, K, Heinicke, K, Henderson, R.D. L, Hennequin, A.M, Hennessy, K, Henry, L, Heuel, J, Hicheur, A, Hill, D, Hilton, M, Hollitt, S.E, Hou, R, Hou, Y, Hu, J, Hu, W, Hu, X, Huang, W, Huang, X, Hulsbergen, W, Hunter, R.J, Hushchyn, M, Hutchcroft, D, Hynds, D, Ibis, P, Idzik, M, Ilin, D, Ilten, P, Inglessi, A, Ishteev, A, Ivshin, K, Jacobsson, R, Jage, H, Jakobsen, S, Jans, E, Jashal, B.K, Jawahery, A, Jevtic, V, Jiang, X, John, M, Johnson, D, Jones, C.R, Jones, T.P, Jost, B, Jurik, N, Kandybei, S, Kang, Y, Karacson, M, Karpenkov, D, Karpov, M, Kautz, J.W, Keizer, F, Keller, D.M, Kenzie, M, Ketel, T, Khanji, B, Kharisova, A, Kholodenko, S, Kirn, T, Kirsebom, V.S, Kitouni, O, Klaver, S, Kleijne, N, Klimaszewski, K, Kmiec, M.R, Koliiev, S, Kondybayeva, A, Konoplyannikov, A, Kopciewicz, P, Kopecna, R, Koppenburg, P, Korolev, M, Kostiuk, I, Kot, O, Kotriakhova, S, Kozachuk, A, Kravchenko, P, Kravchuk, L, Krawczyk, R.D, Kreps, M, Kretzschmar, S, Krokovny, P, Krupa, W, Krzemien, W, Kubat, J, Kucewicz, W, Kucharczyk, M, Kudryavtsev, V, Kuindersma, H.S, Kunde, G.J, Kvaratskheliya, T, Lacarrere, D, Lafferty, G, Lai, A, Lampis, A, Lancierini, D, Lane, J.J, Lane, R, Lanfranchi, G, Langenbruch, C, Langer, J, Lantwin, O, Latham, T, Lazzari, F, Lazzaroni, M, Le Gac, R, Lee, S.H, Lefèvre, R, Leflat, A, Legotin, S, Leroy, O, Lesiak, T, Leverington, B, Li, H, Li, P, Li, S, Li, Y, Li, Z, Liang, X, Lin, T, Lindner, R, Lisovskyi, V, Litvinov, R, Liu, G, Liu, H, Liu, Q, Liu, S, Lobo Salvia, A, Loi, A, Lollini, R, Lomba Castro, J, Longstaff, I, Lopes, J.H, López Soliño, S, Lovell, G.H, Lu, Y, Lucarelli, C, Lucchesi, D, Luchuk, S, Lucio Martinez, M, Lukashenko, V, Luo, Y, Lupato, A, Luppi, E, Lupton, O, Lusiani, A, Lyu, X.R, Ma, L, Ma, R, Maccolini, S, Machefert, F, Maciuc, F, Macko, V, Mackowiak, P, Maddrell-Mander, S, Madhan Mohan, L.R, Maevskiy, A, Maisuzenko, D, Majewski, M.W, Malczewski, J.J, Malde, S, Malecki, B, Malinin, A, Maltsev, T, Malygina, H, Manca, G, Mancinelli, G, Manuzzi, D, Manzari, C.A, Marangotto, D, Maratas, J.M, Marchand, J.F, Marconi, U, Mariani, S, Marin Benito, C, Marinangeli, M, Marks, J, Marshall, A.M, Marshall, P.J, Martelli, G, Martellotti, G, Martinazzoli, L, Martinelli, M, Martinez Santos, D, Martinez Vidal, F, Massafferri, A, Materok, M, Matev, R, Mathad, A, Matiunin, V, Matteuzzi, C, Mattioli, K.R, Mauri, A, Maurice, E, Mauricio, J, Mazurek, M, Mccann, M, Mcconnell, L, Mcgrath, T.H, Mchugh, N.T, Mcnab, A, Mcnulty, R, Mead, J.V, Meadows, B, Meier, G, Melnychuk, D, Meloni, S, Merk, M, Merli, A, Meyer Garcia, L, Mikhasenko, M, Milanes, D.A, Millard, E, Milovanovic, M, Minard, M.N, Minotti, A, Mitchell, S.E, Mitreska, B, Mitzel, D.S, Mödden, A, Mohammed, R.A, Moise, R.D, Mokhnenko, S, Mombächer, T, Monroy, I.A, Monteil, S, Morandin, M, Morello, G, Morello, M.J, Moron, J, Morris, A.B, Morris, A.G, Mountain, R, Mu, H, Muheim, F, Mulder, M, Müller, K, Murphy, C.H, Murray, D, Murta, R, Muzzetto, P, Naik, P, Nakada, T, Nandakumar, R, Nanut, T, Nasteva, I, Needham, M, Neri, N, Neubert, S, Neufeld, N, Neustroev, P, Newcombe, R, Niel, E.M, Nieswand, S, Nikitin, N, Nolte, N.S, Normand, C, Nunez, C, Oblakowska-Mucha, A, Obraztsov, V, Oeser, T, O’hanlon, D.P, Okamura, S, Oldeman, R, Oliva, F, Olivares, M.E, Onderwater, C.J. G, O’neil, R.H, Otalora Goicochea, J.M, Ovsiannikova, T, Owen, P, Oyanguren, A, Ozcelik, O, Padeken, K.O, Pagare, B, Pais, P.R, Pajero, T, Palano, A, Palutan, M, Pan, Y, Panshin, G, Papanestis, A, Pappagallo, M, Pappalardo, L.L, Pappenheimer, C, Parker, W, Parkes, C, Passalacqua, B, Passaleva, G, Pastore, A, Patel, M, Patrignani, C, Pawley, C.J, Pearce, A, Pellegrino, A, Pepe Altarelli, M, Perazzini, S, Pereima, D, Pereiro Castro, A, Perret, P, Petric, M, Petridis, K, Petrolini, A, Petrov, A, Petrucci, S, Petruzzo, M, Pham, H, Philippov, A, Piandani, R, Pica, L, Piccini, M, Pietrzyk, B, Pietrzyk, G, Pili, M, Pinci, D, Pisani, F, Pizzichemi, M, Placinta, V, Plews, J, Plo Casasus, M, Polci, F, Poli Lener, M, Poliakova, M, Poluektov, A, Polukhina, N, Polyakov, I, Polycarpo, E, Ponce, S, Popov, D, Popov, S, Poslavskii, S, Prasanth, K, Promberger, L, Prouve, C, Pugatch, V, Puill, V, Punzi, G, Qi, H.R, Qian, W, Qin, N, Quagliani, R, Raab, N.V, Rabadan Trejo, R.I, Rachwal, B, Rademacker, J.H, Rajagopalan, R, Rama, M, Ramos Pernas, M, Rangel, M.S, Ratnikov, F, Raven, G, Reboud, M, Redi, F, Reiss, F, Remon Alepuz, C, Ren, Z, Renaudin, V, Resmi, P.K, Ribatti, R, Ricci, A.M, Ricciardi, S, Rinnert, K, Robbe, P, Robertson, G, Rodrigues, A.B, Rodrigues, E, Rodriguez Lopez, J.A, Rodriguez Rodriguez, E, Rollings, A, Roloff, P, Romanovskiy, V, Romero Lamas, M, Romero Vidal, A, Roth, J.D, Rotondo, M, Rudolph, M.S, Ruf, T, Ruiz Fernandez, R.A, Ruiz Vidal, J, Ryzhikov, A, Ryzka, J, Saborido Silva, J.J, Sagidova, N, Sahoo, N, Saitta, B, Salomoni, M, Sanchez Gras, C, Santacesaria, R, Santamarina Rios, C, Santimaria, M, Santovetti, E, Saranin, D, Sarpis, G, Sarpis, M, Sarti, A, Satriano, C, Satta, A, Saur, M, Savrina, D, Sazak, H, Scantlebury Smead, L.G, Scarabotto, A, Schael, S, Scherl, S, Schiller, M, Schindler, H, Schmelling, M, Schmidt, B, Schmitt, S, Schneider, O, Schopper, A, Schubiger, M, Schulte, S, Schune, M.H, Schwemmer, R, Sciascia, B, Sciuccati, A, Sellam, S, Semennikov, A, Senghi Soares, M, Sergi, A, Serra, N, Sestini, L, Seuthe, A, Shang, Y, Shangase, D.M, Shapkin, M, Shchemerov, I, Shchutska, L, Shears, T, Shekhtman, L, Shen, Z, Sheng, S, Shevchenko, V, Shields, E.B, Shimizu, Y, Shmanin, E, Shupperd, J.D, Siddi, B.G, Silva Coutinho, R, Simi, G, Simone, S, Singla, M, Skidmore, N, Skuza, R, Skwarnicki, T, Slater, M.W, Slazyk, I, Smallwood, J.C, Smeaton, J.G, Smith, E, Smith, M, Snoch, A, Soares Lavra, L, Sokoloff, M.D, Soler, F.J. P, Solomin, A, Solovev, A, Solovyev, I, Souza de Almeida, F.L, Souza de Paula, B, Spaan, B, Spadaro Norella, E, Spiridenkov, E, Spradlin, P, Stagni, F, Stahl, M, Stahl, S, Stanislaus, S, Steinkamp, O, Stenyakin, O, Stevens, H, Stone, S, Stracka, S, Strekalina, D, Suljik, F, Sun, J, Sun, L, Sun, Y, Svihra, P, Swallow, P.N, Swientek, K, Szabelski, A, Szumlak, T, Szymanski, M, Taneja, S, Tanner, A.R, Tat, M.D, Terentev, A, Teubert, F, Thomas, E, Thompson, D.J. D, Thomson, K.A, Tilquin, H, Tisserand, V, T’jampens, S, Tobin, M, Tomassetti, L, Tong, X, Torres Machado, D, Tou, D.Y, Trifonova, E, Trilov, S.M, Trippl, C, Tuci, G, Tully, A, Tuning, N, Ukleja, A, Unverzagt, D.J, Ursov, E, Usachov, A, Ustyuzhanin, A, Uwer, U, Vagner, A, Vagnoni, V, Valassi, A, Valenti, G, Valls Canudas, N, van Beuzekom, M, van Dijk, M, van Hecke, H, van Herwijnen, E, van Veghel, M, Vazquez Gomez, R, Vazquez Regueiro, P, Vázquez Sierra, C, Vecchi, S, Velthuis, J.J, Veltri, M, Venkateswaran, A, Veronesi, M, Vesterinen, M, Vieira, D, Vieites Diaz, M, Viemann, H, Vilasis-Cardona, X, Vilella Figueras, E, Villa, A, Vincent, P, Volle, F.C, Vom Bruch, D, Vorobyev, A, Vorobyev, V, Voropaev, N, Vos, K, Waldi, R, Walsh, J, Wang, C, Wang, J, Wang, M, Wang, R, Wang, Y, Wang, Z, Ward, J.A, Watson, N.K, Websdale, D, Weisser, C, Westhenry, B.D. C, White, D.J, Whitehead, M, Wiederhold, A.R, Wiedner, D, Wilkinson, G, Wilkinson, M.K, Williams, I, Williams, M, Williams, M.R. J, Wilson, F.F, Wislicki, W, Witek, M, Witola, L, Wormser, G, Wotton, S.A, Wu, H, Wyllie, K, Xiang, Z, Xiao, D, Xie, Y, Xu, A, Xu, J, Xu, L, Xu, M, Xu, Q, Xu, Z, Yang, D, Yang, S, Yang, Y, Yang, Z, Yao, Y, Yeomans, L.E, Yin, H, Yu, J, Yuan, X, Zaffaroni, E, Zavertyaev, M, Zdybal, M, Zenaiev, O, Zeng, M, Zhang, D, Zhang, L, Zhang, S, Zhang, Y, Zharkova, A, Zhelezov, A, Zheng, Y, Zhou, T, Zhou, X, Zhou, Y, Zhovkovska, V, Zhu, X, Zhu, Z, Zhukov, V, Zou, Q, Zucchelli, S, Zuliani, D, Zunica, G, Laboratoire de Physique de Clermont (LPC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), and LHCb

Subjects
p p: scattering, 13000 GeV-cms, Flavour Physics, Astrophysics::Cosmology and Extragalactic Astrophysics, eta(958): radiative decay, +eta%28958%29+pi%2B%22">D+ --> eta(958) pi+, +pi%2B+pi-+photon%22">eta(958) --> pi+ pi- photon, CP: violation, +eta+pi%2B%22">D/s+ --> eta pi+, +eta%28958%29+pi%2B%22">D/s+ --> eta(958) pi+, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], D+: hadronic decay, D/s+: hadronic decay, Astrophysics::Galaxy Astrophysics, CP Violation, Hadron-Hadron Scattering, eta: radiative decay, hep-ex, High Energy Physics::Phenomenology, +eta+pi%2B%22">D+ --> eta pi+, calibration, LHC-B, asymmetry: CP, error: statistical, CERN LHC Coll, Charm Physics, High Energy Physics::Experiment, +pi%2B+pi-+photon%22">eta --> pi+ pi- photon, Astrophysics::Earth and Planetary Astrophysics, pi: pair production, p p: colliding beams, Particle Physics - Experiment, experimental results
Abstract

Searches for CP violation in the decays $ {D}_{(s)}^{+}\to \eta {\pi}^{+} $ and $ {D}_{(s)}^{+}\to {\eta}^{\prime }{\pi}^{+} $ are performed using pp collision data corresponding to 6 fb$^{−1}$ of integrated luminosity collected by the LHCb experiment. The calibration channels $ {D}_{(s)}^{+}\to \phi {\pi}^{+} $ are used to remove production and detection asymmetries. The resulting CP-violating asymmetries are$ {\displaystyle \begin{array}{l}{\mathcal{A}}^{CP}=\left({D}^{+}\to \eta {\pi}^{+}\right)=\left(0.34\pm 0.66\pm 0.16\pm 0.05\right)\%,\\ {}{\mathcal{A}}^{CP}=\left({D}_s^{+}\to \eta {\pi}^{+}\right)=\left(0.32\pm 0.51\pm 0.12\right)\%,\\ {}\begin{array}{l}{\mathcal{A}}^{CP}=\left({D}^{+}\to {\eta}^{\prime }{\pi}^{+}\right)=\left(0.49\pm 0.18\pm 0.06\pm 0.05\right)\%,\\ {}{\mathcal{A}}^{CP}=\left({D}_s^{+}\to {\eta}^{\prime }{\pi}^{+}\right)=\left(0.01\pm 0.12\pm 0.08\right)\%,\end{array}\end{array}} $where the first uncertainty is statistical, the second is systematic and the third, relevant for the D$^{+}$ channels, is due to the uncertainty on $ {\mathcal{A}}^{CP}=\left({D}^{+}\to \phi {\pi}^{+}\right) $. These measurements, currently the most precise for three of the four channels considered, are consistent with the absence of CP violation. A combination of these results with previous LHCb measurements is presented.[graphic not available: see fulltext] Searches for $CP$ violation in the decays $D^+_{(s)}\rightarrow \eta \pi^+$ and $D^+_{(s)}\rightarrow \eta^{\prime} \pi^+$ are performed using $pp$ collision data corresponding to 6 fb$^{-1}$ of integrated luminosity collected by the LHCb experiment. The calibration channels $D^+_{(s)}\rightarrow \phi \pi^+$ are used to remove production and detection asymmetries. The resulting $CP$-violating asymmetries are $A^{CP}(D^+ \rightarrow \eta \pi^+) = (0.34 \pm 0.66 \pm 0.16 \pm 0.05)\%$, $A^{CP}(D^+_s \rightarrow \eta \pi^+) = (0.32 \pm 0.51 \pm 0.12)\%$, $A^{CP}(D^+ \rightarrow \eta^{\prime} \pi^+) = (0.49 \pm 0.18 \pm 0.06 \pm 0.05)\%$, $A^{CP}(D^+_s \rightarrow \eta^{\prime} \pi^+) = (0.01 \pm 0.12 \pm 0.08)\%$, where the first uncertainty is statistical, the second is systematic and the third, relevant for the $D^+$ channels, is due to the uncertainty on $A^{CP}(D^+ \to \phi \pi^+)$. These measurements, currently the most precise for three of the four channels considered, are consistent with the absence of $CP$ violation. A combination of these results with previous LHCb measurements is presented.

Published
2023

31. Search for the lepton-flavour violating decays $B^0 \to K^{*0} \tau^\pm \mu^\mp$

Author

Aaij, R, Abdelmotteleb, A.S. W, Abellan Beteta, C, Abudinén, F, Ackernley, T, Adeva, B, Adinolfi, M, Afsharnia, H, Agapopoulou, C, Aidala, C.A, Aiola, S, Ajaltouni, Z, Akar, S, Akiba, K, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Aliouche, Z, Alvarez Cartelle, P, Amalric, R, Amato, S, Amey, J.L, Amhis, Y, An, L, Anderlini, L, Andersson, M, Andreianov, A, Andreotti, M, Andreou, D, Ao, D, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Atzeni, M, Audurier, B, Bachmann, S, Bachmayer, M, Back, J.J, Bailly-Reyre, A, Baladron Rodriguez, P, Balagura, V, Baldini, W, Baptista de Souza Leite, J, Barbetti, M, Barlow, R.J, Barsuk, S, Barter, W, Bartolini, M, Baryshnikov, F, Basels, J.M, Bassi, G, Batsukh, B, Battig, A, Bay, A, Beck, A, Becker, M, Bedeschi, F, Bediaga, I.B, Beiter, A, Belavin, V, Belin, S, Bellee, V, Belous, K, Belov, I, Belyaev, I, Benane, G, Bencivenni, G, Ben-Haim, E, Berezhnoy, A, Bernet, R, Bernet Andres, S, Berninghoff, D, Bernstein, H.C, Bertella, C, Bertolin, A, Betancourt, C, Betti, F, Bezshyiko, Ia, Bhasin, S, Bhom, J, Bian, L, Bieker, M.S, Biesuz, N.V, Bifani, S, Billoir, P, Biolchini, A, Birch, M, Bishop, F.C. R, Bitadze, A, Bizzeti, A, Blago, M.P, Blake, T, Blanc, F, Blusk, S, Bobulska, D, Boelhauve, J.A, Boente Garcia, O, Boettcher, T, Boldyrev, A, Bolognani, C.S, Bolzonella, R, Bondar, N, Borgato, F, Borghi, S, Borsato, M, Borsuk, J.T, Bouchiba, S.A, Bowcock, T.J. V, Boyer, A, Bozzi, C, Bradley, M.J, Braun, S, Brea Rodriguez, A, Brodzicka, J, Brossa Gonzalo, A, Brown, J, Brundu, D, Buonaura, A, Buonincontri, L, Burke, A.T, Burr, C, Bursche, A, Butkevich, A, Butter, J.S, Buytaert, J, Byczynski, W, Cadeddu, S, Cai, H, Calabrese, R, Calefice, L, Cali, S, Calladine, R, Calvi, M, Calvo Gomez, M, Campana, P, Campora Perez, D.H, Campoverde Quezada, A.F, Capelli, S, Capriotti, L, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carli, I, Carniti, P, Carus, L, Casais Vidal, A, Caspary, R, Casse, G, Cattaneo, M, Cavallero, G, Cavallini, V, Celani, S, Cerasoli, J, Cervenkov, D, Chadwick, A.J, Chapman, M.G, Charles, M, Charpentier, Ph, Chavez Barajas, C.A, Chefdeville, M, Chen, C, Chen, S, Chernov, A, Chernyshenko, S, Chobanova, V, Cholak, S, Chrzaszcz, M, Chubykin, A, Chulikov, V, Ciambrone, P, Cicala, M.F, Cid Vidal, X, Ciezarek, G, Ciullo, G, Clarke, P.E. L, Clemencic, M, Cliff, H.V, Closier, J, Cobbledick, J.L, Coco, V, Coelho, J.A. 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J, Williams, R, Wilson, F.F, Wislicki, W, Witek, M, Witola, L, Wong, C.P, Wormser, G, Wotton, S.A, Wu, H, Wyllie, K, Xiang, Z, Xiao, D, Xie, Y, Xu, A, Xu, J, Xu, L, Xu, M, Xu, Q, Xu, Z, Yang, D, Yang, S, Yang, Y, Yang, Z, Yeomans, L.E, Yeroshenko, V, Yeung, H, Yin, H, Yu, J, Yuan, X, Zaffaroni, E, Zavertyaev, M, Zdybal, M, Zenaiev, O, Zeng, M, Zhang, C, Zhang, D, Zhang, L, Zhang, S, Zhang, Y, Zharkova, A, Zhelezov, A, Zheng, Y, Zhou, T, Zhou, X, Zhou, Y, Zhovkovska, V, Zhu, X, Zhu, Z, Zhukov, V, Zou, Q, Zucchelli, S, Zuliani, D, Zunica, G, Laboratoire de Physique de Clermont (LPC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), and LHCb

Subjects
8000 GeV-cms, p p: scattering, +K*%28892%290+tau-+muon%2B%22">B0 --> K*(892)0 tau- muon+, Hadron-Hadron Scattering, 13000 GeV-cms, B Physics, B0: branching ratio: upper limit, B0: rare decay, LHC-B, +K*%28892%290+tau%2B+muon%22">B0 --> K*(892)0 tau+ muon, High Energy Physics - Experiment, CERN LHC Coll, muon, 7000 GeV-cms, Beyond Standard Model, Rare Decay, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], K*(892)0, tau, B0: semileptonic decay, p p: colliding beams, Particle Physics - Experiment, experimental results
Abstract

A first search for the lepton-flavour violating decays $B^0 \to K^{*0} \tau^\pm \mu^\mp$ is presented. The analysis is performed using a sample of proton-proton collision data, collected with the LHCb detector at centre-of-mass energies of 7, 8 and 13 TeV between 2011 and 2018, corresponding to an integrated luminosity of 9 fb$^{-1}$. No significant signal is observed, and upper limits on the branching fractions are determined to be ${\cal{B}}(B^0 \to K^{*0} \tau^+ \mu^-)< 1.0$ $(1.2)\times 10^{-5} $ and ${\cal{B}}(B^0 \to K^{*0} \tau^- \mu^+)< 8.2$ $(9.8) \times 10^{-6}$ at the 90% (95%) confidence level., Comment: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-021.html (LHCb public pages)

Published
2023

32. Measurement of the $ {\Lambda}_c^{+} $ to D$^{0}$ production ratio in periphera PbPb collisions at $ \sqrt{s_{\textrm{NN}}} $ = 5.02 TeV

Author

Aaij, R, Abdelmotteleb, A.S. W, Abellan Beteta, C, Abudinén, F, Ackernley, T, Adeva, B, Adinolfi, M, Afsharnia, H, Agapopoulou, C, Aidala, C.A, Aiola, S, Ajaltouni, Z, Akar, S, Akiba, K, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Aliouche, Z, Alvarez Cartelle, P, Amato, S, Amey, J.L, Amhis, Y, An, L, Anderlini, L, Andersson, M, Andreianov, A, Andreotti, M, Andreou, D, Ao, D, Archilli, F, Artamonov, A, Artuso, M, Aslanides, E, Atzeni, M, Audurier, B, Bachmann, S, Bachmayer, M, Back, J.J, Bailly-Reyre, A, Baladron Rodriguez, P, Balagura, V, Baldini, W, Baptista de Souza Leite, J, Barbetti, M, Barlow, R.J, Barsuk, S, Barter, W, Bartolini, M, Baryshnikov, F, Basels, J.M, Bassi, G, Batsukh, B, Battig, A, Bay, A, Beck, A, Becker, M, Bedeschi, F, Bediaga, I.B, Beiter, A, Belavin, V, Belin, S, Bellee, V, Belous, K, Belov, I, Belyaev, I, Bencivenni, G, Ben-Haim, E, Berezhnoy, A, Bernet, R, Berninghoff, D, Bernstein, H.C, Bertella, C, Bertolin, A, Betancourt, C, Betti, F, Bezshyiko, Ia, Bhasin, S, Bhom, J, Bian, L, Bieker, M.S, Biesuz, N.V, Bifani, S, Billoir, P, Biolchini, A, Birch, M, Bishop, F.C. R, Bitadze, A, Bizzeti, A, Blago, M.P, Blake, T, Blanc, F, Blusk, S, Bobulska, D, Boelhauve, J.A, Boente Garcia, O, Boettcher, T, Boldyrev, A, Bondar, N, Borghi, S, Borsato, M, Borsuk, J.T, Bouchiba, S.A, Bowcock, T.J. V, Boyer, A, Bozzi, C, Bradley, M.J, Braun, S, Brea Rodriguez, A, Brodzicka, J, Brossa Gonzalo, A, Brundu, D, Buonaura, A, Buonincontri, L, Burke, A.T, Burr, C, Bursche, A, Butkevich, A, Butter, J.S, Buytaert, J, Byczynski, W, Cadeddu, S, Cai, H, Calabrese, R, Calefice, L, Cali, S, Calladine, R, Calvi, M, Calvo Gomez, M, Camargo Magalhaes, P, Campana, P, Campora Perez, D.H, Campoverde Quezada, A.F, Capelli, S, Capriotti, L, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carli, I, Carniti, P, Carus, L, Casais Vidal, A, Caspary, R, Casse, G, Cattaneo, M, Cavallero, G, Cavallini, V, Celani, S, Cerasoli, J, Cervenkov, D, Chadwick, A.J, Chapman, M.G, Charles, M, Charpentier, Ph, Chavez Barajas, C.A, Chefdeville, M, Chen, C, Chen, S, Chernov, A, Chernyshenko, S, Chobanova, V, Cholak, S, Chrzaszcz, M, Chubykin, A, Chulikov, V, Ciambrone, P, Cicala, M.F, Cid Vidal, X, Ciezarek, G, Ciullo, G, Clarke, P.E. L, Clemencic, M, Cliff, H.V, Closier, J, Cobbledick, J.L, Coco, V, Coelho, J.A. B, Cogan, J, Cogneras, E, Cojocariu, L, Collins, P, Colombo, T, Congedo, L, Contu, A, Cooke, N, Coombs, G, Corredoira, I, Corti, G, Couturier, B, Craik, D.C, Crkovská, J, Cruz Torres, M, Currie, R, da Silva, C.L, Dadabaev, S, Dai, L, Dall’occo, E, Dalseno, J, D’ambrosio, C, Danilina, A, D’argent, P, Davies, J.E, Davis, A, de Aguiar Francisco, O, de Boer, J, de Bruyn, K, de Capua, S, de Cian, M, de Freitas Carneiro da Graca, U, de Lucia, E, de Miranda, J.M, de Paula, L, de Serio, M, de Simone, D, de Simone, P, de Vellis, F, de Vries, J.A, Dean, C.T, Debernardis, F, Decamp, D, Dedu, V, del Buono, L, Delaney, B, Dembinski, H.P, Denysenko, V, Deschamps, O, Dettori, F, Dey, B, Di Cicco, A, Di Nezza, P, Didenko, S, Dieste Maronas, L, Ding, S, Dobishuk, V, Dolmatov, A, Dong, C, Donohoe, A.M, Dordei, F, dos Reis, A.C, Douglas, L, Downes, A.G, Dudek, M.W, Dufour, L, Duk, V, Durante, P, Durham, J.M, Dutta, D, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Eisenhardt, S, Ek-In, S, Eklund, L, Ely, S, Ene, A, Epple, E, Escher, S, Eschle, J, Esen, S, Evans, T, Falcao, L.N, Fan, Y, Fang, B, Farry, S, Fazzini, D, Feo, M, Fernez, A.D, Ferrari, F, Ferreira Lopes, L, Ferreira Rodrigues, F, Ferreres Sole, S, Ferrillo, M, Ferro-Luzzi, M, Filippov, S, Fini, R.A, Fiorini, M, Firlej, M, Fischer, K.M, Fitzgerald, D.S, Fitzpatrick, C, Fiutowski, T, Fleuret, F, Fontana, M, Fontanelli, F, Forty, R, Foulds-Holt, D, Franco Lima, V, Franco Sevilla, M, Frank, M, Franzoso, E, Frau, G, Frei, C, Friday, D.A, Fu, J, Fuehring, Q, Gabriel, E, Galati, G, Gallas Torreira, A, Galli, D, Gambetta, S, Gan, Y, Gandelman, M, Gandini, P, Gao, Y, Garau, M, Garcia Martin, L.M, Garcia Moreno, P, García Pardiñas, J, Garcia Plana, B, Garcia Rosales, F.A, Garrido, L, Gaspar, C, Geertsema, R.E, Gerick, D, Gerken, L.L, Gersabeck, E, Gersabeck, M, Gershon, T, Giambastiani, L, Gibson, V, Giemza, H.K, Gilman, A.L, Giovannetti, M, Gioventù, A, Gironella Gironell, P, Giugliano, C, Gizdov, K, Gkougkousis, E.L, Gligorov, V.V, Göbel, C, Golobardes, E, Golubkov, D, Golutvin, A, Gomes, A, Gomez Fernandez, S, Goncalves Abrantes, F, Goncerz, M, Gong, G, Gorelov, I.V, Gotti, C, Grabowski, J.P, Grammatico, T, Granado Cardoso, L.A, Graugés, E, Graverini, E, Graziani, G, Grecu, A.T, Greeven, L.M, Grieser, N.A, Grillo, L, Gromov, S, Gruberg Cazon, B.R, Gu, C, Guarise, M, Guittiere, M, Günther, P.A, Gushchin, E, Guth, A, Guz, Y, Gys, T, Hadavizadeh, T, Haefeli, G, Haen, C, Haimberger, J, Haines, S.C, Halewood-Leagas, T, Halvorsen, M.M, Hamilton, P.M, Hammerich, J, Han, Q, Han, X, Hansen, E.B, Hansmann-Menzemer, S, Hao, L, Harnew, N, Harrison, T, Hasse, C, Hatch, M, He, J, Heijhoff, K, Heinicke, K, Henderson, R.D. L, Hennequin, A.M, Hennessy, K, Henry, L, Heuel, J, Hicheur, A, Hill, D, Hilton, M, Hollitt, S.E, Hou, R, Hou, Y, Hu, J, Hu, W, Hu, X, Huang, W, Huang, X, Hulsbergen, W, Hunter, R.J, Hushchyn, M, Hutchcroft, D, Ibis, P, Idzik, M, Ilin, D, Ilten, P, Inglessi, A, Iniukhin, A, Ishteev, A, Ivshin, K, Jacobsson, R, Jage, H, Jakobsen, S, Jans, E, Jashal, B.K, Jawahery, A, Jevtic, V, Jiang, X, John, M, Johnson, D, Jones, C.R, Jones, T.P, Jost, B, Jurik, N, Kandybei, S, Kang, Y, Karacson, M, Karpenkov, D, Karpov, M, Kautz, J.W, Keizer, F, Keller, D.M, Kenzie, M, Ketel, T, Khanji, B, Kharisova, A, Kholodenko, S, Kirn, T, Kirsebom, V.S, Kitouni, O, Klaver, S, Kleijne, N, Klimaszewski, K, Kmiec, M.R, Koliiev, S, Kondybayeva, A, Konoplyannikov, A, Kopciewicz, P, Kopecna, R, Koppenburg, P, Korolev, M, Kostiuk, I, Kot, O, Kotriakhova, S, Kozachuk, A, Kravchenko, P, Kravchuk, L, Krawczyk, R.D, Kreps, M, Kretzschmar, S, Krokovny, P, Krupa, W, Krzemien, W, Kubat, J, Kucewicz, W, Kucharczyk, M, Kudryavtsev, V, Kuindersma, H.S, Kunde, G.J, Lacarrere, D, Lafferty, G, Lai, A, Lampis, A, Lancierini, D, Lane, J.J, Lane, R, Lanfranchi, G, Langenbruch, C, Langer, J, Lantwin, O, Latham, T, Lazzari, F, Lazzaroni, M, Le Gac, R, Lee, S.H, Lefèvre, R, Leflat, A, Legotin, S, Lenisa, P, Leroy, O, Lesiak, T, Leverington, B, Li, H, Li, K, Li, P, Li, S, Li, Y, Li, Z, Liang, X, Lin, C, Lin, T, Lindner, R, Lisovskyi, V, Litvinov, R, Liu, G, Liu, H, Liu, Q, Liu, S, Lobo Salvia, A, Loi, A, Lollini, R, Lomba Castro, J, Longstaff, I, Lopes, J.H, López Soliño, S, Lovell, G.H, Lu, Y, Lucarelli, C, Lucchesi, D, Luchuk, S, Lucio Martinez, M, Lukashenko, V, Luo, Y, Lupato, A, Luppi, E, Lusiani, A, Lynch, K, Lyu, X.R, Ma, L, Ma, R, Maccolini, S, Machefert, F, Maciuc, F, Macko, V, Mackowiak, P, Maddrell-Mander, S, Madhan Mohan, L.R, Maevskiy, A, Maisuzenko, D, Majewski, M.W, Malczewski, J.J, Malde, S, Malecki, B, Malinin, A, Maltsev, T, Malygina, H, Manca, G, Mancinelli, G, Manuzzi, D, Manzari, C.A, Marangotto, D, Marchand, J.F, Marconi, U, Mariani, S, Marin Benito, C, Marinangeli, M, Marks, J, Marshall, A.M, Marshall, P.J, Martelli, G, Martellotti, G, Martinazzoli, L, Martinelli, M, Martinez Santos, D, Martinez Vidal, F, Massafferri, A, Materok, M, Matev, R, Mathad, A, Matiunin, V, Matteuzzi, C, Mattioli, K.R, Mauri, A, Maurice, E, Mauricio, J, Mazurek, M, Mccann, M, Mcconnell, L, Mcgrath, T.H, Mchugh, N.T, Mcnab, A, Mcnulty, R, Mead, J.V, Meadows, B, Meier, G, Melnychuk, D, Meloni, S, Merk, M, Merli, A, Meyer Garcia, L, Mikhasenko, M, Milanes, D.A, Millard, E, Milovanovic, M, Minard, M.N, Minotti, A, Mitchell, S.E, Mitreska, B, Mitzel, D.S, Mödden, A, Mohammed, R.A, Moise, R.D, Mokhnenko, S, Mombächer, T, Monroy, I.A, Monteil, S, Morandin, M, Morello, G, Morello, M.J, Moron, J, Morris, A.B, Morris, A.G, Mountain, R, Mu, H, Muheim, F, Mulder, M, Müller, K, Murphy, C.H, Murray, D, Murta, R, Muzzetto, P, Naik, P, Nakada, T, Nandakumar, R, Nanut, T, Nasteva, I, Needham, M, Neri, N, Neubert, S, Neufeld, N, Neustroev, P, Newcombe, R, Niel, E.M, Nieswand, S, Nikitin, N, Nolte, N.S, Normand, C, Nunez, C, Oblakowska-Mucha, A, Obraztsov, V, Oeser, T, O’hanlon, D.P, Okamura, S, Oldeman, R, Oliva, F, Olivares, M.E, Onderwater, C.J. G, O’neil, R.H, Otalora Goicochea, J.M, Ovsiannikova, T, Owen, P, Oyanguren, A, Ozcelik, O, Padeken, K.O, Pagare, B, Pais, P.R, Pajero, T, Palano, A, Palutan, M, Pan, Y, Panshin, G, Papanestis, A, Pappagallo, M, Pappalardo, L.L, Pappenheimer, C, Parker, W, Parkes, C, Passalacqua, B, Passaleva, G, Pastore, A, Patel, M, Patrignani, C, Pawley, C.J, Pearce, A, Pellegrino, A, Pepe Altarelli, M, Perazzini, S, Pereima, D, Pereiro Castro, A, Perret, P, Petric, M, Petridis, K, Petrolini, A, Petrov, A, Petrucci, S, Petruzzo, M, Pham, H, Philippov, A, Piandani, R, Pica, L, Piccini, M, Pietrzyk, B, Pietrzyk, G, Pili, M, Pinci, D, Pisani, F, Pizzichemi, M, Placinta, V, Plews, J, Plo Casasus, M, Polci, F, Poli Lener, M, Poliakova, M, Poluektov, A, Polukhina, N, Polyakov, I, Polycarpo, E, Ponce, S, Popov, D, Popov, S, Poslavskii, S, Prasanth, K, Promberger, L, Prouve, C, Pugatch, V, Puill, V, Punzi, G, Qi, H.R, Qian, W, Qin, N, Qu, S, Quagliani, R, Raab, N.V, Rabadan Trejo, R.I, Rachwal, B, Rademacker, J.H, Rajagopalan, R, Rama, M, Ramos Pernas, M, Rangel, M.S, Ratnikov, F, Raven, G, Rebollo de Miguel, M, Reboud, M, Redi, F, Reiss, F, Remon Alepuz, C, Ren, Z, Renaudin, V, Resmi, P.K, Ribatti, R, Ricci, A.M, Ricciardi, S, Rinnert, K, Robbe, P, Robertson, G, Rodrigues, A.B, Rodrigues, E, Rodriguez Lopez, J.A, Rodriguez Rodriguez, E, Rollings, A, Roloff, P, Romanovskiy, V, Romero Lamas, M, Romero Vidal, A, Roth, J.D, Rotondo, M, Rudolph, M.S, Ruf, T, Ruiz Fernandez, R.A, Ruiz Vidal, J, Ryzhikov, A, Ryzka, J, Saborido Silva, J.J, Sagidova, N, Sahoo, N, Saitta, B, Salomoni, M, Sanchez Gras, C, Sanderswood, I, Santacesaria, R, Santamarina Rios, C, Santimaria, M, Santovetti, E, Saranin, D, Sarpis, G, Sarpis, M, Sarti, A, Satriano, C, Satta, A, Saur, M, Savrina, D, Sazak, H, Scantlebury Smead, L.G, Scarabotto, A, Schael, S, Scherl, S, Schiller, M, Schindler, H, Schmelling, M, Schmidt, B, Schmitt, S, Schneider, O, Schopper, A, Schubiger, M, Schulte, S, Schune, M.H, Schwemmer, R, Sciascia, B, Sciuccati, A, Sellam, S, Semennikov, A, Senghi Soares, M, Sergi, A, Serra, N, Sestini, L, Seuthe, A, Shang, Y, Shangase, D.M, Shapkin, M, Shchemerov, I, Shchutska, L, Shears, T, Shekhtman, L, Shen, Z, Sheng, S, Shevchenko, V, Shields, E.B, Shimizu, Y, Shmanin, E, Shupperd, J.D, Siddi, B.G, Silva Coutinho, R, Simi, G, Simone, S, Singla, M, Skidmore, N, Skuza, R, Skwarnicki, T, Slater, M.W, Slazyk, I, Smallwood, J.C, Smeaton, J.G, Smith, E, Smith, M, Snoch, A, Soares Lavra, L, Sokoloff, M.D, Soler, F.J. P, Solomin, A, Solovev, A, Solovyev, I, Souza de Almeida, F.L, Souza de Paula, B, Spaan, B, Spadaro Norella, E, Spiridenkov, E, Spradlin, P, Sriskaran, V, Stagni, F, Stahl, M, Stahl, S, Stanislaus, S, Steinkamp, O, Stenyakin, O, Stevens, H, Stone, S, Strekalina, D, Suljik, F, Sun, J, Sun, L, Sun, Y, Svihra, P, Swallow, P.N, Swientek, K, Szabelski, A, Szumlak, T, Szymanski, M, Taneja, S, Tanner, A.R, Tat, M.D, Terentev, A, Teubert, F, Thomas, E, Thompson, D.J. D, Thomson, K.A, Tilquin, H, Tisserand, V, T’jampens, S, Tobin, M, Tomassetti, L, Tonani, G, Tong, X, Torres Machado, D, Tou, D.Y, Trifonova, E, Trilov, S.M, Trippl, C, Tuci, G, Tully, A, Tuning, N, Ukleja, A, Unverzagt, D.J, Ursov, E, Usachov, A, Ustyuzhanin, A, Uwer, U, Vagner, A, Vagnoni, V, Valassi, A, Valenti, G, Valls Canudas, N, van Beuzekom, M, van Dijk, M, van Hecke, H, van Herwijnen, E, van Veghel, M, Vazquez Gomez, R, Vazquez Regueiro, P, Vázquez Sierra, C, Vecchi, S, Velthuis, J.J, Veltri, M, Venkateswaran, A, Veronesi, M, Vesterinen, M, Vieira, D, Vieites Diaz, M, Vilasis-Cardona, X, Vilella Figueras, E, Villa, A, Vincent, P, Volle, F.C, Vom Bruch, D, Vorobyev, A, Vorobyev, V, Voropaev, N, Vos, K, Waldi, R, Walsh, J, Wang, C, Wang, J, Wang, M, Wang, R, Wang, Y, Wang, Z, Ward, J.A, Watson, N.K, Websdale, D, Weisser, C, Westhenry, B.D. C, White, D.J, Whitehead, M, Wiederhold, A.R, Wiedner, D, Wilkinson, G, Wilkinson, M.K, Williams, I, Williams, M, Williams, M.R. J, Wilson, F.F, Wislicki, W, Witek, M, Witola, L, Wong, C.P, Wormser, G, Wotton, S.A, Wu, H, Wyllie, K, Xiang, Z, Xiao, D, Xie, Y, Xu, A, Xu, J, Xu, L, Xu, M, Xu, Q, Xu, Z, Yang, D, Yang, S, Yang, Y, Yang, Z, Yao, Y, Yeomans, L.E, Yin, H, Yu, J, Yuan, X, Zaffaroni, E, Zavertyaev, M, Zdybal, M, Zenaiev, O, Zeng, M, Zhang, D, Zhang, L, Zhang, S, Zhang, Y, Zharkova, A, Zhelezov, A, Zheng, Y, Zhou, T, Zhou, X, Zhou, Y, Zhovkovska, V, Zhu, X, Zhu, Z, Zhukov, V, Zou, Q, Zucchelli, S, Zuliani, D, Cynic’s, G, Laboratoire de Physique de Clermont (LPC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), and LHCb

Subjects
p p: scattering, heavy ion: scattering, Heavy Quark Production, Lambda/c+: hadroproduction, +p+K%2B+pi%22">Lambda/c+ --> p K+ pi, D0: hadronic decay, transverse momentum dependence, rapidity dependence, Heavy Ion Experiments, hadronization: statistical, Lambda/c+: hadronic decay, D0: hadroproduction, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Relativistic Heavy Ion Physics, 5020 GeV-cms/nucleon, peripheral, lead, D0: yield, multiplicity: dependence, tension, LHC-B, Lambda/c+: yield, CERN LHC Coll, PYTHIA, Charm Physics, +K-+pi%2B%22">D0 --> K- pi+, numerical calculations: Monte Carlo, channel cross section: ratio, hadronization: model, yield: ratio: measured, experimental results
Abstract

International audience; We report on a measurement of the $ {\Lambda}_c^{+} $ to D$^{0}$ production ratio in peripheral PbPb collisions at $ \sqrt{s_{\textrm{NN}}} $ = 5.02 TeV with the LHCb detector in the forward rapidity region 2 < y < 4.5. The $ {\Lambda}_c^{+} $ (D$^{0}$) hadrons are reconstructed via the decay channel $ {\Lambda}_c^{+} $→ pK$^{−}$π$^{+}$ (D$^{0}$→ K$^{−}$π$^{+}$) for 2 < p$_{T}$< 8 GeV/c and in the centrality range of about 65–90%. The results show no significant dependence on p$_{T}$, y or the mean number of participating nucleons. They are also consistent with similar measurements obtained by the LHCb collaboration in pPb and Pbp collisions at $ \sqrt{s_{\textrm{NN}}} $ = 5.02 TeV. The data agree well with predictions from PYTHIA in pp collisions at $ \sqrt{s} $ = 5 TeV but are in tension with predictions of the Statistical Hadronization model.[graphic not available: see fulltext]

Published
2023

34. Elastoplastic consolidation solutions for scaling from shallow penetrometers to pipelines

Author

Yan, Y., White, D.J., and Randolph, M.F.

Subjects
Engineering models -- Usage, Underwater pipelines -- Mechanical properties -- Models, Earth sciences
Abstract

The build-up of friction on seabed pipelines is an important design consideration, affecting their stability and the resulting in-service strain and fatigue. The consolidation beneath a partially embedded pipeline has been investigated in the past and linked to the build-up of axial pipe-soil resistance. This paper extends previous work by providing solutions for consolidation around a new class of shallow penetrometer, to provide a basis to scale from site investigation results directly to the build-up of pipeline friction. Small-strain finite element analyses, using the Modified Cam Clay soil model, are presented for the novel toroid and ball penetrometers. The effects of initial penetrometer embedment, device roughness, strength gradient, and overload ratio have been explored in a comprehensive manner, and are compared with pipe results. The toroid penetrometer shows excellent agreement with an element of an infinitely long pipe, simplifying the scaling process. The ball penetrometer shows a faster consolidation response, typically by a factor of three, reflecting the more effective drainage mechanisms of a three-dimensional device compared to a plane strain device. The dissipation responses are fitted by simple equations to aid application in design. Key words: offshore engineering, pipelines, penetrometers, plasticity, numerical analysis. L'accumulation de frottement sur les pipelines en fonds marins est un important element de la conception, affectant leur stabilite aboutissant dans la deformation et la fatigue en service. La consolidation sous un pipeline integre partiellement a ete etudiee dans le passe et est liee a l'accumulation de resistance axiale de tuyau-sol. Le present article elargit le travail precedent en fournissant des solutions de consolidation autour d'une nouvelle classe de penetrometre peu profonde, et fournir une base a developper de resultats d'un site d'enquete directement avec l'accumulation de frottement de pipeline. Les analyses en elements finis de petites contraintes, a l'aide du modele de sol d'argile a Cam modifie, sont presentees pour le toroidal novateur et penetrometre a billes. Les effets de l'encastrement du penetrometre initial, la rugosite de l'appareil, la resistance de la pente et le rapport de surcharge ont ete etudies de maniere globale, et sont compares avec les resultats de tuyau. Le penetrometre toroidal montre excellent accord avec un element d'un tuyau de longueur infinie, simplifiant le processus de mise a l'echelle. Le penetrometre a bille montre une consolidation plus rapide, comme regle generale par un facteur de trois, ce qui reflete la plus efficace des mecanismes de drainage d'un dispositif a trois dimensions par rapport a un dispositif de deformation plane. Les reponses de dissipation sont equipees par des equations simples pour aider la conception. [Traduit par la Redaction] Mots-cles: ingenierie outremer, pipelines, penetrometres, plasticite, analyse numerique., Introduction Subsea pipelines serve as a significant component of offshore oil and gas developments, to connect wells with other facilities, and for export of processed hydrocarbons, and are usually laid [...]

Published
2017
Full Text
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35. Measurement of $\Upsilon$ production in $pp$ collisions at $\sqrt{s}=5 \ \rm{TeV}$

Author

Aaij, R., Abdelmotteleb, A.S. W., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adeva, B., Adinolfi, M., Adlarson, P., Afsharnia, H., Agapopoulou, C., Aidala, C.A., Ajaltouni, Z., Akar, S., Akiba, K., Albicocco, P., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Aliouche, Z., Alvarez Cartelle, P., Amalric, R., Amato, S., Amey, J.L., Amhis, Y., An, L., Anderlini, L., Andersson, M., Andreianov, A., Andreotti, M., Andreou, D., Ao, D., Archilli, F., Artamonov, A., Artuso, M., Aslanides, E., Atzeni, M., Audurier, B., Bachiller Perea, I.B., Bachmann, S., Bachmayer, M., Back, J.J., Bailly-reyre, A., Baladron Rodriguez, P., Balagura, V., Baldini, W., Baptista de Souza Leite, J., Barbetti, M., Barlow, R.J., Barsuk, S., Barter, W., Bartolini, M., Baryshnikov, F., Basels, J.M., Bassi, G., Batsukh, B., Battig, A., Bay, A., Beck, A., Becker, M., Bedeschi, F., Bediaga, I.B., Beiter, A., Belavin, V., Belin, S., Bellee, V., Belous, K., Belov, I., Belyaev, I., Benane, G., Bencivenni, G., Ben-Haim, E., Berezhnoy, A., Bernet, R., Bernet Andres, S., Berninghoff, D., Bernstein, H.C., Bertella, C., Bertolin, A., Betancourt, C., Betti, F., Bezshyiko, Ia., Bhasin, S., Bhom, J., Bian, L., Bieker, M.S., Biesuz, N.V., Billoir, P., Biolchini, A., Birch, M., Bishop, F.C. R., Bitadze, A., Bizzeti, A., Blago, M.P., Blake, T., Blanc, F., Blank, J.E., Blusk, S., Bobulska, D., Boelhauve, J.A., Boente Garcia, O., Boettcher, T., Boldyrev, A., Bolognani, C.S., Bolzonella, R., Bondar, N., Borgato, F., Borghi, S., Borsato, M., Borsuk, J.T., Bouchiba, S.A., Bowcock, T.J. V., Boyer, A., Bozzi, C., Bradley, M.J., Braun, S., Brea Rodriguez, A., Brodzicka, J., Brossa Gonzalo, A., Brown, J., Brundu, D., Buonaura, A., Buonincontri, L., Burke, A.T., Burr, C., Bursche, A., Butkevich, A., Butter, J.S., Buytaert, J., Byczynski, W., Cadeddu, S., Cai, H., Calabrese, R., Calefice, L., Cali, S., Calvi, M., Calvo Gomez, M., Campana, P., Campora Perez, D.H., Campoverde Quezada, A.F., Capelli, S., Capriotti, L., Carbone, A., Cardinale, R., Cardini, A., Carniti, P., Carus, L., Casais Vidal, A., Caspary, R., Casse, G., Cattaneo, M., Cavallero, G., Cavallini, V., Celani, S., Cerasoli, J., Cervenkov, D., Chadwick, A.J., Chahrour, I., Chapman, M.G., Charles, M., Charpentier, Ph., Chavez Barajas, C.A., Chefdeville, M., Chen, C., Chen, S., Chernov, A., Chernyshenko, S., Chobanova, V., Cholak, S., Chrzaszcz, M., Chubykin, A., Chulikov, V., Ciambrone, P., Cicala, M.F., Cid Vidal, X., Ciezarek, G., Cifra, P., Ciullo, G., Clarke, P.E. L., Clemencic, M., Cliff, H.V., Closier, J., Cobbledick, J.L., Coco, V., Coelho, J.A. B., Cogan, J., Cogneras, E., Cojocariu, L., Collins, P., Colombo, T., Congedo, L., Contu, A., Cooke, N., Corredoira, I., Corti, G., Couturier, B., Craik, D.C., Cruz Torres, M., Currie, R., Da Silva, C.L., Dadabaev, S., Dai, L., Dai, X., Dall’Occo, E., Dalseno, J., D’Ambrosio, C., Daniel, J., Danilina, A., d’Argent, P., Davies, J.E., Davis, A., De Aguiar Francisco, O., de Boer, J., De Bruyn, K., De Capua, S., De Cian, M., De Freitas Carneiro Da Graca, U., De Lucia, E., De Miranda, J.M., De Paula, L., De Serio, M., De Simone, D., De Simone, P., De Vellis, F., de Vries, J.A., Dean, C.T., Debernardis, F., Decamp, D., Dedu, V., Del Buono, L., Delaney, B., Dembinski, H.P., Denysenko, V., Deschamps, O., Dettori, F., Dey, B., Di Nezza, P., Diachkov, I., Didenko, S., Dieste Maronas, L., Ding, S., Dobishuk, V., Dolmatov, A., Dong, C., Donohoe, A.M., Dordei, F., dos Reis, A.C., Douglas, L., Downes, A.G., Duda, P., Dudek, M.W., Dufour, L., Duk, V., Durante, P., Duras, M.M., Durham, J.M., Dutta, D., Dziurda, A., Dzyuba, A., Easo, S., Egede, U., Egorychev, V., Eirea Orro, C., Eisenhardt, S., Ejopu, E., Ek-In, S., Eklund, L., Ellbracht, J., Ely, S., Ene, A., Epple, E., Escher, S., Eschle, J., Esen, S., Evans, T., Fabiano, F., Falcao, L.N., Fan, Y., Fang, B., Fantini, L., Faria, M., Farry, S., Fazzini, D., Felkowski, L.F., Feo, M., Fernandez Gomez, M., Fernez, A.D., Ferrari, F., Ferreira Lopes, L., Ferreira Rodrigues, F., Ferreres Sole, S., Ferrillo, M., Ferro-Luzzi, M., Filippov, S., Fini, R.A., Fiorini, M., Firlej, M., Fischer, K.M., Fitzgerald, D.S., Fitzpatrick, C., Fiutowski, T., Fleuret, F., Fontana, M., Fontanelli, F., Forty, R., Foulds-Holt, D., Franco Lima, V., Franco Sevilla, M., Frank, M., Franzoso, E., Frau, G., Frei, C., Friday, D.A., Fu, J., Fuehring, Q., Fulghesu, T., Gabriel, E., Galati, G., Galati, M.D., Gallas Torreira, A., Galli, D., Gambetta, S., Gan, Y., Gandelman, M., Gandini, P., Gao, Y., Garau, M., Garcia Martin, L.M., Garcia Moreno, P., García Pardiñas, J., Garcia Plana, B., Garcia Rosales, F.A., Garrido, L., Gaspar, C., Geertsema, R.E., Gerick, D., Gerken, L.L., Gersabeck, E., Gersabeck, M., Gershon, T., Giambastiani, L., Gibson, V., Giemza, H.K., Gilman, A.L., Giovannetti, M., Gioventù, A., Gironella Gironell, P., Giugliano, C., Giza, M.A., Gizdov, K., Gkougkousis, E.L., Gligorov, V.V., Göbel, C., Golobardes, E., Golubkov, D., Golutvin, A., Gomes, A., Gomez Fernandez, S., Goncalves Abrantes, F., Goncerz, M., Gong, G., Gorelov, I.V., Gotti, C., Grabowski, J.P., Grammatico, T., Granado Cardoso, L.A., Graugés, E., Graverini, E., Graziani, G., Grecu, A.T., Greeven, L.M., Grieser, N.A., Grillo, L., Gromov, S., Gruberg Cazon, B.R., Gu, C., Guarise, M., Guittiere, M., Günther, P.A., Gushchin, E., Guth, A., Guz, Y., Gys, T., Hadavizadeh, T., Hadjivasiliou, C., Haefeli, G., Haen, C., Haimberger, J., Haines, S.C., Halewood-leagas, T., Halvorsen, M.M., Hamilton, P.M., Hammerich, J., Han, Q., Han, X., Hansen, E.B., Hansmann-Menzemer, S., Hao, L., Harnew, N., Harrison, T., Hasse, C., Hatch, M., He, J., Heijhoff, K., Hemmer, F.H., Henderson, C., Henderson, R.D. L., Hennequin, A.M., Hennessy, K., Henry, L., Herd, J., Heuel, J., Hicheur, A., Hill, D., Hilton, M., Hollitt, S.E., Horswill, J., Hou, R., Hou, Y., Hu, J., Hu, W., Hu, X., Huang, W., Huang, X., Hulsbergen, W., Hunter, R.J., Hushchyn, M., Hutchcroft, D., Ibis, P., Idzik, M., Ilin, D., Ilten, P., Inglessi, A., Iniukhin, A., Ishteev, A., Ivshin, K., Jacobsson, R., Jage, H., Jaimes Elles, S.J., Jakobsen, S., Jans, E., Jashal, B.K., Jawahery, A., Jevtic, V., Jiang, E., Jiang, X., Jiang, Y., John, M., Johnson, D., Jones, C.R., Jones, T.P., Jost, B., Jurik, N., Juszczak, I., Kandybei, S., Kang, Y., Karacson, M., Karpenkov, D., Karpov, M., Kautz, J.W., Keizer, F., Keller, D.M., Kenzie, M., Ketel, T., Khanji, B., Kharisova, A., Kholodenko, S., Khreich, G., Kirn, T., Kirsebom, V.S., Kitouni, O., Klaver, S., Kleijne, N., Klimaszewski, K., Kmiec, M.R., Koliiev, S., Kolk, L., Kondybayeva, A., Konoplyannikov, A., Kopciewicz, P., Kopecna, R., Koppenburg, P., Korolev, M., Kostiuk, I., Kot, O., Kotriakhova, S., Kozachuk, A., Kravchenko, P., Kravchuk, L., Krawczyk, R.D., Kreps, M., Kretzschmar, S., Krokovny, P., Krupa, W., Krzemien, W., Kubat, J., Kubis, S., Kucewicz, W., Kucharczyk, M., Kudryavtsev, V., Kulikova, E.K., Kupsc, A., Lacarrere, D., Lafferty, G., Lai, A., Lampis, A., Lancierini, D., Landesa Gomez, C., Lane, J.J., Lane, R., Langenbruch, C., Langer, J., Lantwin, O., Latham, T., Lazzari, F., Lazzaroni, M., Le Gac, R., Lee, S.H., Lefèvre, R., Leflat, A., Legotin, S., Lenisa, P., Leroy, O., Lesiak, T., Leverington, B., Li, A., Li, H., Li, K., Li, P., Li, P.R., Li, S., Li, T., Li, Y., Li, Z., Liang, X., Lin, C., Lin, T., Lindner, R., Lisovskyi, V., Litvinov, R., Liu, G., Liu, H., Liu, Q., Liu, S., Lobo Salvia, A., Loi, A., Lollini, R., Lomba Castro, J., Longstaff, I., Lopes, J.H., Lopez Huertas, A., López Soliño, S., Lovell, G.H., Lu, Y., Lucarelli, C., Lucchesi, D., Luchuk, S., Lucio Martinez, M., Lukashenko, V., Luo, Y., Lupato, A., Luppi, E., Lusiani, A., Lynch, K., Lyu, X.R., Ma, R., Maccolini, S., Machefert, F., Maciuc, F., Mackay, I., Macko, V., Madhan Mohan, L.R., Maevskiy, A., Maisuzenko, D., Majewski, M.W., Malczewski, J.J., Malde, S., Malecki, B., Malinin, A., Maltsev, T., Manca, G., Mancinelli, G., Mancuso, C., Manera Escalero, R., Manuzzi, D., Manzari, C.A., Marangotto, D., Marchand, J.F., Marconi, U., Mariani, S., Marin Benito, C., Marks, J., Marshall, A.M., Marshall, P.J., Martelli, G., Martellotti, G., Martinazzoli, L., Martinelli, M., Martinez Santos, D., Martinez Vidal, F., Massafferri, A., Materok, M., Matev, R., Mathad, A., Matiunin, V., Matteuzzi, C., Mattioli, K.R., Mauri, A., Maurice, E., Mauricio, J., Mazurek, M., McCann, M., Mcconnell, L., McGrath, T.H., McHugh, N.T., McNab, A., McNulty, R., Mead, J.V., Meadows, B., Meier, G., Melnychuk, D., Meloni, S., Merk, M., Merli, A., Meyer Garcia, L., Miao, D., Mikhasenko, M., Milanes, D.A., Millard, E., Milovanovic, M., Minard, M.N., Minotti, A., Miralles, T., Mitchell, S.E., Mitreska, B., Mitzel, D.S., Mödden, A., Mohammed, R.A., Moise, R.D., Mokhnenko, S., Mombächer, T., Monk, M., Monroy, I.A., Monteil, S., Morello, G., Morello, M.J., Moron, J., Morris, A.B., Morris, A.G., Mountain, R., Mu, H., Muhammad, E., Muheim, F., Mulder, M., Müller, K., Murphy, C.H., Murray, D., Murta, R., Muzzetto, P., Naik, P., Nakada, T., Nandakumar, R., Nanut, T., Nasteva, I., Needham, M., Neri, N., Neubert, S., Neufeld, N., Neustroev, P., Newcombe, R., Nicolini, J., Nicotra, D., Niel, E.M., Nieswand, S., Nikitin, N., Nolte, N.S., Normand, C., Novoa Fernandez, J., Nowak, G.N., Nunez, C., Oblakowska-Mucha, A., Obraztsov, V., Oeser, T., O’Hanlon, D.P., Okamura, S., Oldeman, R., Oliva, F., Onderwater, C.J. 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Subjects
hep-ex, Particle Physics - Experiment, High Energy Physics - Experiment
Abstract

The production cross-sections of $\Upsilon$ mesons, namely $\Upsilon(1S)$, $\Upsilon(2S)$ and $\Upsilon(3S)$, in $pp$ collisions at $\sqrt{s}=5 \ \rm{TeV}$ are measured with a data sample corresponding to an integrated luminosity of $9.13\pm{0.18} \ \rm{pb}^{-1}$ collected by the LHCb detector. The $\Upsilon$ mesons are reconstructed in the decay mode $\Upsilon \to {\mu}^+ {\mu}^-$. Double differential cross-sections times branching fractions, as functions of the transverse momentum $p_{\rm{T}}$ and the rapidity $y$ of the $\Upsilon$ mesons, are measured in the range $p_{\rm{T}} < 20 \ \rm{GeV}/c$ and $2.0, Comment: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-036.html (LHCb public pages)

Published
2022

36. Open charm production and asymmetry in $p$Ne collisions at $\sqrt{s_{\scriptscriptstyle\rm NN}} =$ 68.5 GeV

Author

Aaij, R., Abdelmotteleb, A.S. W., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adeva, B., Adinolfi, M., Adlarson, P., Afsharnia, H., Agapopoulou, C., Aidala, C.A., Ajaltouni, Z., Akar, S., Akiba, K., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Aliouche, Z., Alvarez Cartelle, P., Amalric, R., Amato, S., Amey, J.L., Amhis, Y., An, L., Anderlini, L., Andersson, M., Andreianov, A., Andreotti, M., Andreou, D., Ao, D., Archilli, F., Artamonov, A., Artuso, M., Aslanides, E., Atzeni, M., Audurier, B., Bachmann, S., Bachmayer, M., Back, J.J., Bailly-reyre, A., Baladron Rodriguez, P., Balagura, V., Baldini, W., Baptista de Souza Leite, J., Barbetti, M., Barlow, R.J., Barsuk, S., Barter, W., Bartolini, M., Baryshnikov, F., Basels, J.M., Bassi, G., Batsukh, B., Battig, A., Bay, A., Beck, A., Becker, M., Bedeschi, F., Bediaga, I.B., Beiter, A., Belavin, V., Belin, S., Bellee, V., Belous, K., Belov, I., Belyaev, I., Benane, G., Bencivenni, G., Ben-Haim, E., Berezhnoy, A., Bernet, R., Bernet Andres, S., Berninghoff, D., Bernstein, H.C., Bertella, C., Bertolin, A., Betancourt, C., Betti, F., Bezshyiko, Ia., Bhasin, S., Bhom, J., Bian, L., Bieker, M.S., Biesuz, N.V., Bifani, S., Billoir, P., Biolchini, A., Birch, M., Bishop, F.C. R., Bitadze, A., Bizzeti, A., Blago, M.P., Blake, T., Blanc, F., Blank, J.E., Blusk, S., Bobulska, D., Boelhauve, J.A., Boente Garcia, O., Boettcher, T., Boldyrev, A., Bolognani, C.S., Bolzonella, R., Bondar, N., Borgato, F., Borghi, S., Borsato, M., Borsuk, J.T., Bouchiba, S.A., Bowcock, T.J. V., Boyer, A., Bozzi, C., Bradley, M.J., Braun, S., Brea Rodriguez, A., Brodzicka, J., Brossa Gonzalo, A., Brown, J., Brundu, D., Buonaura, A., Buonincontri, L., Burke, A.T., Burr, C., Bursche, A., Butkevich, A., Butter, J.S., Buytaert, J., Byczynski, W., Cadeddu, S., Cai, H., Calabrese, R., Calefice, L., Cali, S., Calladine, R., Calvi, M., Calvo Gomez, M., Campana, P., Campora Perez, D.H., Campoverde Quezada, A.F., Capelli, S., Capriotti, L., Carbone, A., Carboni, G., Cardinale, R., Cardini, A., Carniti, P., Carus, L., Casais Vidal, A., Caspary, R., Casse, G., Cattaneo, M., Cavallero, G., Cavallini, V., Celani, S., Cerasoli, J., Cervenkov, D., Chadwick, A.J., Chapman, M.G., Charles, M., Charpentier, Ph., Chavez Barajas, C.A., Chefdeville, M., Chen, C., Chen, S., Chernov, A., Chernyshenko, S., Chobanova, V., Cholak, S., Chrzaszcz, M., Chubykin, A., Chulikov, V., Ciambrone, P., Cicala, M.F., Vidal, X.Cid, Ciezarek, G., Ciullo, G., Clarke, P.E. L., Clemencic, M., Cliff, H.V., Closier, J., Cobbledick, J.L., Coco, V., Coelho, J.A. B., Cogan, J., Cogneras, E., Cojocariu, L., Collins, P., Colombo, T., Congedo, L., Contu, A., Cooke, N., Corredoira, I., Corti, G., Couturier, B., Craik, D.C., Cruz Torres, M., Currie, R., Da Silva, C.L., Dadabaev, S., Dai, L., Dai, X., Dall’Occo, E., Dalseno, J., D’Ambrosio, C., Daniel, J., Danilina, A., d’Argent, P., Davies, J.E., Davis, A., De Aguiar Francisco, O., de Boer, J., De Bruyn, K., De Capua, S., De Cian, M., De Freitas Carneiro Da Graca, U., De Lucia, E., De Miranda, J.M., De Paula, L., De Serio, M., De Simone, D., De Simone, P., De Vellis, F., de Vries, J.A., Dean, C.T., Debernardis, F., Decamp, D., Dedu, V., Del Buono, L., Delaney, B., Dembinski, H.P., Denysenko, V., Deschamps, O., Dettori, F., Dey, B., Di Nezza, P., Diachkov, I., Didenko, S., Dieste Maronas, L., Ding, S., Dobishuk, V., Dolmatov, A., Dong, C., Donohoe, A.M., Dordei, F., dos Reis, A.C., Douglas, L., Downes, A.G., Duda, P., Dudek, M.W., Dufour, L., Duk, V., Durante, P., Duras, M.M., Durham, J.M., Dutta, D., Dziurda, A., Dzyuba, A., Easo, S., Egede, U., Egorychev, V., Eidelman, S., Eirea Orro, C., Eisenhardt, S., Ejopu, E., Ek-In, S., Eklund, L., Ely, S., Ene, A., Epple, E., Escher, S., Eschle, J., Esen, S., Evans, T., Fabiano, F., Falcao, L.N., Fan, Y., Fang, B., Fantini, L., Faria, M., Farry, S., Fazzini, D., Felkowski, L.F., Feo, M., Fernandez Gomez, M., Fernez, A.D., Ferrari, F., Ferreira Lopes, L., Ferreira Rodrigues, F., Ferreres Sole, S., Ferrillo, M., Ferro-Luzzi, M., Filippov, S., Fini, R.A., Fiorini, M., Firlej, M., Fischer, K.M., Fitzgerald, D.S., Fitzpatrick, C., Fiutowski, T., Fleuret, F., Fontana, M., Fontanelli, F., Forty, R., Foulds-Holt, D., Franco Lima, V., Franco Sevilla, M., Frank, M., Franzoso, E., Frau, G., Frei, C., Friday, D.A., Fu, J., Fuehring, Q., Fulghesu, T., Gabriel, E., Galati, G., Galati, M.D., Gallas Torreira, A., Galli, D., Gambetta, S., Gan, Y., Gandelman, M., Gandini, P., Gao, Y., Garau, M., Garcia Martin, L.M., Garcia Moreno, P., García Pardiñas, J., Garcia Plana, B., Garcia Rosales, F.A., Garrido, L., Gaspar, C., Geertsema, R.E., Gerick, D., Gerken, L.L., Gersabeck, E., Gersabeck, M., Gershon, T., Giambastiani, L., Gibson, V., Giemza, H.K., Gilman, A.L., Giovannetti, M., Gioventù, A., Gironella Gironell, P., Giugliano, C., Giza, M.A., Gizdov, K., Gkougkousis, E.L., Gligorov, V.V., Göbel, C., Golobardes, E., Golubkov, D., Golutvin, A., Gomes, A., Gomez Fernandez, S., Goncalves Abrantes, F., Goncerz, M., Gong, G., Gorelov, I.V., Gotti, C., Grabowski, J.P., Grammatico, T., Granado Cardoso, L.A., Graugés, E., Graverini, E., Graziani, G., Grecu, A.T., Greeven, L.M., Grieser, N.A., Grillo, L., Gromov, S., Gruberg Cazon, B.R., Gu, C., Guarise, M., Guittiere, M., Günther, P.A., Gushchin, E., Guth, A., Guz, Y., Gys, T., Hadavizadeh, T., Hadjivasiliou, C., Haefeli, G., Haen, C., Haimberger, J., Haines, S.C., Halewood-leagas, T., Halvorsen, M.M., Hamilton, P.M., Hammerich, J., Han, Q., Han, X., Hansen, E.B., Hansmann-Menzemer, S., Hao, L., Harnew, N., Harrison, T., Hasse, C., Hatch, M., He, J., Heijhoff, K., Henderson, C., Henderson, R.D. 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Subjects
High Energy Physics - Experiment (hep-ex), FOS: Physical sciences, Particle Physics - Experiment, High Energy Physics - Experiment
Abstract

A measurement of $D^0$ meson production by the LHCb experiment in its fixed-target configuration is presented. The production of $D^0$ mesons is studied with a beam of 2.5 TeV protons colliding on a gaseous neon target at rest, corresponding to a nucleon-nucleon centre-of-mass energy of $\sqrt{s_{\rm NN}}$ = 68.5 GeV. The $D^0$ and ${\overline D^0}$ production cross-section in $p$Ne collisions in the centre-of-mass rapidity range $y^{\star}\in [-2.29, 0]$ is found to be $\sigma_{D^{0}}^{y^\star \in [-2.29, 0]} = 48.2 \pm 0.3 \pm 4.5 \,\mu\textrm{b/nucleon}$ where the first uncertainty is statistical and the second is systematic. The $D^0-{\overline D^0}$ production asymmetry is also evaluated and suggests a negative trend at large negative $y^{\star}$. The considered models do not account precisely for all the features observed in the LHCb data, but theoretical predictions including 1$\%$ intrinsic charm and 10$\%$ recombination contributions better describe the data than the other models considered., Comment: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-015.html (LHCb public pages). arXiv admin note: text overlap with arXiv:1810.07907

Published
2022

37. Observation of the $B_s^{0} \rightarrow D^{*+}D^{*-}$ decay

Author

Aaij, R., Abdelmotteleb, A.S. W., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adeva, B., Adinolfi, M., Adlarson, P., Afsharnia, H., Agapopoulou, C., Aidala, C.A., Aiola, S., Ajaltouni, Z., Akar, S., Akiba, K., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Aliouche, Z., Alvarez Cartelle, P., Amalric, R., Amato, S., Amey, J.L., Amhis, Y., An, L., Anderlini, L., Andersson, M., Andreianov, A., Andreotti, M., Andreou, D., Ao, D., Archilli, F., Artamonov, A., Artuso, M., Aslanides, E., Atzeni, M., Audurier, B., Bachmann, S., Bachmayer, M., Back, J.J., Bailly-reyre, A., Baladron Rodriguez, P., Balagura, V., Baldini, W., Baptista de Souza Leite, J., Barbetti, M., Barlow, R.J., Barsuk, S., Barter, W., Bartolini, M., Baryshnikov, F., Basels, J.M., Bassi, G., Batsukh, B., Battig, A., Bay, A., Beck, A., Becker, M., Bedeschi, F., Bediaga, I.B., Beiter, A., Belavin, V., Belin, S., Bellee, V., Belous, K., Belov, I., Belyaev, I., Benane, G., Bencivenni, G., Ben-Haim, E., Berezhnoy, A., Bernet, R., Bernet Andres, S., Berninghoff, D., Bernstein, H.C., Bertella, C., Bertolin, A., Betancourt, C., Betti, F., Bezshyiko, Ia., Bhasin, S., Bhom, J., Bian, L., Bieker, M.S., Biesuz, N.V., Bifani, S., Billoir, P., Biolchini, A., Birch, M., Bishop, F.C. R., Bitadze, A., Bizzeti, A., Blago, M.P., Blake, T., Blanc, F., Blusk, S., Bobulska, D., Boelhauve, J.A., Boente Garcia, O., Boettcher, T., Boldyrev, A., Bolognani, C.S., Bolzonella, R., Bondar, N., Borgato, F., Borghi, S., Borsato, M., Borsuk, J.T., Bouchiba, S.A., Bowcock, T.J. V., Boyer, A., Bozzi, C., Bradley, M.J., Braun, S., Brea Rodriguez, A., Brodzicka, J., Brossa Gonzalo, A., Brown, J., Brundu, D., Buonaura, A., Buonincontri, L., Burke, A.T., Burr, C., Bursche, A., Butkevich, A., Butter, J.S., Buytaert, J., Byczynski, W., Cadeddu, S., Cai, H., Calabrese, R., Calefice, L., Cali, S., Calladine, R., Calvi, M., Calvo Gomez, M., Campana, P., Campora Perez, D.H., Campoverde Quezada, A.F., Capelli, S., Capriotti, L., Carbone, A., Carboni, G., Cardinale, R., Cardini, A., Carli, I., Carniti, P., Carus, L., Casais Vidal, A., Caspary, R., Casse, G., Cattaneo, M., Cavallero, G., Cavallini, V., Celani, S., Cerasoli, J., Cervenkov, D., Chadwick, A.J., Chapman, M.G., Charles, M., Charpentier, Ph., Chavez Barajas, C.A., Chefdeville, M., Chen, C., Chen, S., Chernov, A., Chernyshenko, S., Chobanova, V., Cholak, S., Chrzaszcz, M., Chubykin, A., Chulikov, V., Ciambrone, P., Cicala, M.F., Cid Vidal, X., Ciezarek, G., Ciullo, G., Clarke, P.E. L., Clemencic, M., Cliff, H.V., Closier, J., Cobbledick, J.L., Coco, V., Coelho, J.A. B., Cogan, J., Cogneras, E., Cojocariu, L., Collins, P., Colombo, T., Congedo, L., Contu, A., Cooke, N., Corredoira, I., Corti, G., Couturier, B., Craik, D.C., Crkovská, J., Cruz Torres, M., Currie, R., Da Silva, C.L., Dadabaev, S., Dai, L., Dai, X., Dall’Occo, E., Dalseno, J., D’Ambrosio, C., Daniel, J., Danilina, A., d’Argent, P., Davies, J.E., Davis, A., De Aguiar Francisco, O., de Boer, J., De Bruyn, K., De Capua, S., De Cian, M., De Freitas Carneiro Da Graca, U., De Lucia, E., De Miranda, J.M., De Paula, L., De Serio, M., De Simone, D., De Simone, P., De Vellis, F., de Vries, J.A., Dean, C.T., Debernardis, F., Decamp, D., Dedu, V., Del Buono, L., Delaney, B., Dembinski, H.P., Denysenko, V., Deschamps, O., Dettori, F., Dey, B., Di Cicco, A., Di Nezza, P., Diachkov, I., Didenko, S., Dieste Maronas, L., Ding, S., Dobishuk, V., Dolmatov, A., Dong, C., Donohoe, A.M., Dordei, F., dos Reis, A.C., Douglas, L., Downes, A.G., Duda, P., Dudek, M.W., Dufour, L., Duk, V., Durante, P., Duras, M.M., Durham, J.M., Dutta, D., Dziurda, A., Dzyuba, A., Easo, S., Egede, U., Egorychev, V., Eidelman, S., Eirea Orro, C., Eisenhardt, S., Ejopu, E., Ek-In, S., Eklund, L., Ely, S., Ene, A., Epple, E., Escher, S., Eschle, J., Esen, S., Evans, T., Fabiano, F., Falcao, L.N., Fan, Y., Fang, B., Fantini, L., Faria, M., Farry, S., Fazzini, D., Felkowski, L.F., Feo, M., Fernandez Gomez, M., Fernez, A.D., Ferrari, F., Ferreira Lopes, L., Ferreira Rodrigues, F., Ferreres Sole, S., Ferrillo, M., Ferro-Luzzi, M., Filippov, S., Fini, R.A., Fiorini, M., Firlej, M., Fischer, K.M., Fitzgerald, D.S., Fitzpatrick, C., Fiutowski, T., Fleuret, F., Fontana, M., Fontanelli, F., Forty, R., Foulds-Holt, D., Franco Lima, V., Franco Sevilla, M., Frank, M., Franzoso, E., Frau, G., Frei, C., Friday, D.A., Fu, J., Fuehring, Q., Fulghesu, T., Gabriel, E., Galati, G., Galati, M.D., Gallas Torreira, A., Galli, D., Gambetta, S., Gan, Y., Gandelman, M., Gandini, P., Gao, Y., Garau, M., Garcia Martin, L.M., Garcia Moreno, P., García Pardiñas, J., Garcia Plana, B., Garcia Rosales, F.A., Garrido, L., Gaspar, C., Geertsema, R.E., Gerick, D., Gerken, L.L., Gersabeck, E., Gersabeck, M., Gershon, T., Giambastiani, L., Gibson, V., Giemza, H.K., Gilman, A.L., Giovannetti, M., Gioventù, A., Gironella Gironell, P., Giugliano, C., Giza, M.A., Gizdov, K., Gkougkousis, E.L., Gligorov, V.V., Göbel, C., Golobardes, E., Golubkov, D., Golutvin, A., Gomes, A., Gomez Fernandez, S., Goncalves Abrantes, F., Goncerz, M., Gong, G., Gorelov, I.V., Gotti, C., Grabowski, J.P., Grammatico, T., Granado Cardoso, L.A., Graugés, E., Graverini, E., Graziani, G., Grecu, A.T., Greeven, L.M., Grieser, N.A., Grillo, L., Gromov, S., Gruberg Cazon, B.R., Gu, C., Guarise, M., Guittiere, M., Günther, P.A., Gushchin, E., Guth, A., Guz, Y., Gys, T., Hadavizadeh, T., Haefeli, G., Haen, C., Haimberger, J., Haines, S.C., Halewood-leagas, T., Halvorsen, M.M., Hamilton, P.M., Hammerich, J., Han, Q., Han, X., Hansen, E.B., Hansmann-Menzemer, S., Hao, L., Harnew, N., Harrison, T., Hasse, C., Hatch, M., He, J., Heijhoff, K., Heinicke, K., Henderson, C., Henderson, R.D. 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Subjects
Particle Physics - Experiment
Abstract

The first observation of the $B_s^0 \to D^{\ast +} D^{\ast -}$ decay and the measurement of its branching ratio relative to the $B_d^0 \to D^{\ast +} D^{\ast -}$ decay are presented. The data sample used corresponds to an integrated luminosity of 9 $\text{fb}^{-1}$ of proton-proton collisions recorded by the LHCb experiment at centre-of-mass energies of 7, 8 and 13 TeV between 2011 and 2018. The decay is observed with a very high significance and the ratio of branching fractions is determined to be \begin{align*} \frac{\mathcal{B}(B_s^0 \to D^{\ast +} D^{\ast -})}{\mathcal{B}(B_d^0 \to D^{\ast +} D^{\ast -})} = 0.269 \pm 0.032 \pm 0.011 \pm 0.008\, , \end{align*} where the first uncertainty is statistical, the second systematic and the third due to the uncertainty of the fragmentation fraction ratio $f_s/f_d$. The $B_s^0 \to D^{\ast +} D^{\ast -}$ branching fraction is calculated to be \begin{align*} \mathcal{B}(B_s^0 \to D^{\ast +} D^{\ast -}) = (2.15 \pm 0.26 \pm 0.09 \pm 0.06 \pm 0.16)\times 10^{-4} \,, \end{align*} where the fourth uncertainty is due to the $B_d^0 \to D^{\ast +} D^{\ast -}$ branching fraction. The first observation of the $ {B}_s^0 $→ D$^{∗+}$D$^{∗−}$ decay and the measurement of its branching ratio relative to the B$^{0}$→ D$^{∗+}$D$^{∗−}$ decay are presented. The data sample used corresponds to an integrated luminosity of 9 fb$^{−1}$ of proton-proton collisions recorded by the LHCb experiment at centre-of-mass energies of 7, 8 and 13 TeV between 2011 and 2018. The decay is observed with more than 10 standard deviations and the time-integrated ratio of branching fractions is determined to be$ \frac{\mathcal{B}\left({B}_s^0\to {D}^{\ast +}{D}^{\ast -}\right)}{\mathcal{B}\left({B}^0\to {D}^{\ast +}{D}^{\ast -}\right)}=0.269\pm 0.032\pm 0.011\pm 0.008, $where the first uncertainty is statistical, the second systematic and the third due to the uncertainty of the fragmentation fraction ratio f$_{s}$/f$_{d}$. The $ {B}_s^0 $→ D$^{*+}$D$^{*−}$ branching fraction is calculated to be$ \mathcal{B}\left({B}_s^0\to {D}^{\ast +}{D}^{\ast -}\right)=\left(2.15\pm 0.26\pm 0.09\pm 0.06\pm 0.16\right)\times {10}^{-4}, $where the fourth uncertainty is due to the B$^{0}$→ D$^{*+}$D$^{*−}$ branching fraction. These results are calculated using the average $ {B}_s^0 $ meson lifetime in simulation. Correction factors are reported for scenarios where either a purely heavy or a purely light $ {B}_s^0 $ eigenstate is considered.[graphic not available: see fulltext] The first observation of the $B^0_s\!\to D^{*+}D^{*-}$ decay and the measurement of its branching ratio relative to the $B^0\!\to D^{*+}D^{*-}$ decay are presented. The data sample used corresponds to an integrated luminosity of 9$\,\text{fb}^{-1}$ of proton-proton collisions recorded by the LHCb experiment at centre-of-mass energies of 7, 8 and 13$\,\text{TeV}$ between 2011 and 2018. The decay is observed with a very high significance and the ratio of branching fractions is determined to be \begin{align*} \frac{\mathcal{B}(B^0_s\!\to D^{*+}D^{*-})}{\mathcal{B}(B^0\!\to D^{*+}D^{*-})} = 0.269 \pm 0.032 \pm 0.011 \pm 0.008\, , \end{align*} where the first uncertainty is statistical, the second systematic and the third due to the uncertainty of the fragmentation fraction ratio $f_s/f_d$. The $B^0_s\!\to D^{*+}D^{*-}$ branching fraction is calculated to be \begin{align*} \mathcal{B}(B^0_s\!\to D^{*+}D^{*-}) = (2.15 \pm 0.26 \pm 0.09 \pm 0.06 \pm 0.16)\times 10^{-4} \,, \end{align*} where the fourth uncertainty is due to the $B^0\!\to D^{*+}D^{*-}$ branching fraction.

Published
2022

38. Measurement of the $\Lambda_c^+$ to $D^0$ production cross-section ratio in peripheral PbPb collisions

Author

Aaij, R., Abdelmotteleb, A.S. W., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., Agapopoulou, C., Aidala, C.A., Aiola, S., Ajaltouni, Z., Akar, S., Akiba, K., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Aliouche, Z., Alvarez Cartelle, P., Amato, S., Amey, J.L., Amhis, Y., An, L., Anderlini, L., Andersson, M., Andreianov, A., Andreotti, M., Andreou, D., Ao, D., Archilli, F., Artamonov, A., Artuso, M., Aslanides, E., Atzeni, M., Audurier, B., Bachmann, S., Bachmayer, M., Back, J.J., Bailly-reyre, A., Baladron Rodriguez, P., Balagura, V., Baldini, W., Baptista de Souza Leite, J., Barbetti, M., Barlow, R.J., Barsuk, S., Barter, W., Bartolini, M., Baryshnikov, F., Basels, J.M., Bassi, G., Batsukh, B., Battig, A., Bay, A., Beck, A., Becker, M., Bedeschi, F., Bediaga, I.B., Beiter, A., Belavin, V., Belin, S., Bellee, V., Belous, K., Belov, I., Belyaev, I., Bencivenni, G., Ben-Haim, E., Berezhnoy, A., Bernet, R., Berninghoff, D., Bernstein, H.C., Bertella, C., Bertolin, A., Betancourt, C., Betti, F., Bezshyiko, Ia., Bhasin, S., Bhom, J., Bian, L., Bieker, M.S., Biesuz, N.V., Bifani, S., Billoir, P., Biolchini, A., Birch, M., Bishop, F.C. R., Bitadze, A., Bizzeti, A., Blago, M.P., Blake, T., Blanc, F., Blusk, S., Bobulska, D., Boelhauve, J.A., Boente Garcia, O., Boettcher, T., Boldyrev, A., Bondar, N., Borghi, S., Borsato, M., Borsuk, J.T., Bouchiba, S.A., Bowcock, T.J. V., Boyer, A., Bozzi, C., Bradley, M.J., Braun, S., Brea Rodriguez, A., Brodzicka, J., Brossa Gonzalo, A., Brundu, D., Buonaura, A., Buonincontri, L., Burke, A.T., Burr, C., Bursche, A., Butkevich, A., Butter, J.S., Buytaert, J., Byczynski, W., Cadeddu, S., Cai, H., Calabrese, R., Calefice, L., Cali, S., Calladine, R., Calvi, M., Calvo Gomez, M., Camargo Magalhaes, P., Campana, P., Campora Perez, D.H., Campoverde Quezada, A.F., Capelli, S., Capriotti, L., Carbone, A., Carboni, G., Cardinale, R., Cardini, A., Carli, I., Carniti, P., Carus, L., Casais Vidal, A., Caspary, R., Casse, G., Cattaneo, M., Cavallero, G., Cavallini, V., Celani, S., Cerasoli, J., Cervenkov, D., Chadwick, A.J., Chapman, M.G., Charles, M., Charpentier, Ph., Chavez Barajas, C.A., Chefdeville, M., Chen, C., Chen, S., Chernov, A., Chernyshenko, S., Chobanova, V., Cholak, S., Chrzaszcz, M., Chubykin, A., Chulikov, V., Ciambrone, P., Cicala, M.F., Cid Vidal, X., Ciezarek, G., Ciullo, G., Clarke, P.E. L., Clemencic, M., Cliff, H.V., Closier, J., Cobbledick, J.L., Coco, V., Coelho, J.A. B., Cogan, J., Cogneras, E., Cojocariu, L., Collins, P., Colombo, T., Congedo, L., Contu, A., Cooke, N., Coombs, G., Corredoira, I., Corti, G., Couturier, B., Craik, D.C., Crkovská, J., Cruz Torres, M., Currie, R., Da Silva, C.L., Dadabaev, S., Dai, L., Dall’Occo, E., Dalseno, J., D’Ambrosio, C., Danilina, A., d’Argent, P., Davies, J.E., Davis, A., De Aguiar Francisco, O., de Boer, J., De Bruyn, K., De Capua, S., De Cian, M., De Freitas Carneiro Da Graca, U., De Lucia, E., De Miranda, J.M., De Paula, L., De Serio, M., De Simone, D., De Simone, P., De Vellis, F., de Vries, J.A., Dean, C.T., Debernardis, F., Decamp, D., Dedu, V., Del Buono, L., Delaney, B., Dembinski, H.P., Denysenko, V., Deschamps, O., Dettori, F., Dey, B., Di Cicco, A., Di Nezza, P., Didenko, S., Dieste Maronas, L., Ding, S., Dobishuk, V., Dolmatov, A., Dong, C., Donohoe, A.M., Dordei, F., dos Reis, A.C., Douglas, L., Downes, A.G., Dudek, M.W., Dufour, L., Duk, V., Durante, P., Durham, J.M., Dutta, D., Dziurda, A., Dzyuba, A., Easo, S., Egede, U., Egorychev, V., Eidelman, S., Eisenhardt, S., Ek-In, S., Eklund, L., Ely, S., Ene, A., Epple, E., Escher, S., Eschle, J., Esen, S., Evans, T., Falcao, L.N., Fan, Y., Fang, B., Farry, S., Fazzini, D., Feo, M., Fernez, A.D., Ferrari, F., Ferreira Lopes, L., Ferreira Rodrigues, F., Ferreres Sole, S., Ferrillo, M., Ferro-Luzzi, M., Filippov, S., Fini, R.A., Fiorini, M., Firlej, M., Fischer, K.M., Fitzgerald, D.S., Fitzpatrick, C., Fiutowski, T., Fleuret, F., Fontana, M., Fontanelli, F., Forty, R., Foulds-Holt, D., Franco Lima, V., Franco Sevilla, M., Frank, M., Franzoso, E., Frau, G., Frei, C., Friday, D.A., Fu, J., Fuehring, Q., Gabriel, E., Galati, G., Gallas Torreira, A., Galli, D., Gambetta, S., Gan, Y., Gandelman, M., Gandini, P., Gao, Y., Garau, M., Garcia Martin, L.M., Garcia Moreno, P., García Pardiñas, J., Garcia Plana, B., Garcia Rosales, F.A., Garrido, L., Gaspar, C., Geertsema, R.E., Gerick, D., Gerken, L.L., Gersabeck, E., Gersabeck, M., Gershon, T., Giambastiani, L., Gibson, V., Giemza, H.K., Gilman, A.L., Giovannetti, M., Gioventù, A., Gironella Gironell, P., Giugliano, C., Gizdov, K., Gkougkousis, E.L., Gligorov, V.V., Göbel, C., Golobardes, E., Golubkov, D., Golutvin, A., Gomes, A., Gomez Fernandez, S., Goncalves Abrantes, F., Goncerz, M., Gong, G., Gorelov, I.V., Gotti, C., Grabowski, J.P., Grammatico, T., Granado Cardoso, L.A., Graugés, E., Graverini, E., Graziani, G., Grecu, A.T., Greeven, L.M., Grieser, N.A., Grillo, L., Gromov, S., Gruberg Cazon, B.R., Gu, C., Guarise, M., Guittiere, M., Günther, P.A., Gushchin, E., Guth, A., Guz, Y., Gys, T., Hadavizadeh, T., Haefeli, G., Haen, C., Haimberger, J., Haines, S.C., Halewood-leagas, T., Halvorsen, M.M., Hamilton, P.M., Hammerich, J., Han, Q., Han, X., Hansen, E.B., Hansmann-Menzemer, S., Hao, L., Harnew, N., Harrison, T., Hasse, C., Hatch, M., He, J., Heijhoff, K., Heinicke, K., Henderson, R.D. 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C., White, D.J., Whitehead, M., Wiederhold, A.R., Wiedner, D., Wilkinson, G., Wilkinson, M.K., Williams, I., Williams, M., Williams, M.R. J., Wilson, F.F., Wislicki, W., Witek, M., Witola, L., Wong, C.P., Wormser, G., Wotton, S.A., Wu, H., Wyllie, K., Xiang, Z., Xiao, D., Xie, Y., Xu, A., Xu, J., Xu, L., Xu, M., Xu, Q., Xu, Z., Yang, D., Yang, S., Yang, Y., Yang, Z., Yao, Y., Yeomans, L.E., Yin, H., Yu, J., Yuan, X., Zaffaroni, E., Zavertyaev, M., Zdybal, M., Zenaiev, O., Zeng, M., Zhang, D., Zhang, L., Zhang, S., Zhang, Y., Zharkova, A., Zhelezov, A., Zheng, Y., Zhou, T., Zhou, X., Zhou, Y., Zhovkovska, V., Zhu, X., Zhu, Z., Zhukov, V., Zou, Q., Zucchelli, S., Zuliani, D., and Cynic’s, G.

Subjects
Particle Physics - Experiment, High Energy Physics - Experiment
Abstract

We report on a measurement of the $\Lambda_c^+$ to $D^0$ production ratio in PbPb collisions at $\sqrt{s_{\rm NN}}$= 5.02 TeV with the LHCb detector in the forward rapidity region $2, Comment: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2021-046.html (LHCb public pages)

Published
2022

39. Modelling spatial variability in as-laid embedment for high pressure and high temperature (HPHT) pipeline design

Author

Westgate, Z.J., Haneberg, W., and White, D.J.

Subjects
Underwater pipe lines -- Design and construction, Stress analysis (Engineering) -- Methods, Earth sciences
Abstract

Subsea pipelines are being designed to accommodate higher temperatures and pressures. Current modelling approaches that adopt constant lateral seabed resistance along the pipeline do not capture the high spatial variability in as-laid pipeline embedment from field observations, which strongly affects the lateral resistance. Ignoring spatial variability when designing pipelines with engineered buckles leads to higher predictions of axial force along the pipeline, with reduced likelihood of buckle formation. This can result in excessive mitigation measures being adopted, such as sleepers or counteract structures, which significantly increase project costs. Spatial variability of pipeline embedment is not currently handled rationally in design because an understanding of the physical mechanisms that cause as-laid embedment and methods for accurately predicting it have only recently emerged. This paper illustrates how the influence of these physical mechanisms that drive embedment can be extracted from field survey data and then modelled synthetically in design analyses. The impact of embedment variability and the resulting variation in lateral seabed resistance on the lateral buckling response is illustrated. The framework represents an improvement in the way geotechnical uncertainty and variability is handled in pipeline-seabed interaction analyses for use in pipeline design, and has already begun to be implemented in practice. Key words: pipeline embedment, pipeline design, high pressure and high temperature (HPHT), lateral buckling, modelling, spatial variability. Les pipelines sous-marins sont concus pour tenir compte des pressions et des temperatures plus elevees. Les approches de modelisation actuelles qui adoptent la resistance laterale constante aux fonds marins le long du pipeline ne tiennent pas compte de la forte variabilite spatiale d'enrobement de pipelines installes a partir des observations sur le terrain, qui influe fortement la resistance laterale. Ignorer la variabilite spatiale lors de la conception des pipelines avec des boucles concues aboutit a des previsions plus elevees de force axiale le long du pipeline, avec une probabilite reduite de formation de boucle. Cela peut entrainer de mesures adoptees d'attenuation excessive, telles que des sous-poutres ou des structures de compensation, ce qui augmente les couts du projet. La variabilite spatiale d'unenrobage de pipeline n'estpas actuellement traitee rationnellement dans la conception, car la comprehension des mecanismes physiques qui causent des enrobages d'installation, et les methodes pour predire avec precision, ont emerge que recemment. Cet article illustre comment l'influence de ces mecanismes physiques qui produisent un enrobage peut etre extraite des donnees d'enquetes de terrain, et puis modelee synthetiquement dans des analyses de conception. L'impact de la variabilite d'enrobage et la variation resultante de la resistance laterale du fond marin a la reponse du flambement lateral sont illustres. Le cadre de travail represente une amelioration dans la maniere dont l'incertitude geotechnique et la variabilite sont gerees par des analyses d'interaction de pipelines-fonds marins devant servir a la conception du pipeline, et a deja commence a etre mis en reuvre dans la pratique. [Traduit par la Redaction] Mots-cles: enrobage de pipeline, conception de pipeline, haute pression et haute temperature (HPHT), flambage lateral, modelisation, variabilite spatiale., Introduction For pipelines laid and operated on the seabed, the pipe embedment has a significant impact on lateral and axial seabed resistance (White and Cathie 2011). This in turn has [...]

Published
2016
Full Text
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40. Search for the lepton-flavour violating decays $B^0 \to K^{*0} \mu^\pm e^\mp$ and $B_s^0 \to \phi \mu^\pm e^\mp$

Author

Aaij, R., Abdelmotteleb, A.S. W., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., Agapopoulou, C., Aidala, C.A., Aiola, S., Ajaltouni, Z., Akar, S., Akiba, K., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Aliouche, Z., Alvarez Cartelle, P., Amato, S., Amey, J.L., Amhis, Y., An, L., Anderlini, L., Andersson, M., Andreianov, A., Andreotti, M., Andreou, D., Ao, D., Archilli, F., Artamonov, A., Artuso, M., Aslanides, E., Atzeni, M., Audurier, B., Bachmann, S., Bachmayer, M., Back, J.J., Bailly-reyre, A., Baladron Rodriguez, P., Balagura, V., Baldini, W., Baptista de Souza Leite, J., Barbetti, M., Barlow, R.J., Barsuk, S., Barter, W., Bartolini, M., Baryshnikov, F., Basels, J.M., Bassi, G., Batsukh, B., Battig, A., Bay, A., Beck, A., Becker, M., Bedeschi, F., Bediaga, I.B., Beiter, A., Belavin, V., Belin, S., Bellee, V., Belous, K., Belov, I., Belyaev, I., Bencivenni, G., Ben-Haim, E., Berezhnoy, A., Bernet, R., Berninghoff, D., Bernstein, H.C., Bertella, C., Bertolin, A., Betancourt, C., Betti, F., Bezshyiko, Ia., Bhasin, S., Bhom, J., Bian, L., Bieker, M.S., Biesuz, N.V., Bifani, S., Billoir, P., Biolchini, A., Birch, M., Bishop, F.C. R., Bitadze, A., Bizzeti, A., Blago, M.P., Blake, T., Blanc, F., Blusk, S., Bobulska, D., Boelhauve, J.A., Boente Garcia, O., Boettcher, T., Boldyrev, A., Bondar, N., Borghi, S., Borsato, M., Borsuk, J.T., Bouchiba, S.A., Bowcock, T.J. V., Boyer, A., Bozzi, C., Bradley, M.J., Braun, S., Brea Rodriguez, A., Brodzicka, J., Brossa Gonzalo, A., Brundu, D., Buonaura, A., Buonincontri, L., Burke, A.T., Burr, C., Bursche, A., Butkevich, A., Butter, J.S., Buytaert, J., Byczynski, W., Cadeddu, S., Cai, H., Calabrese, R., Calefice, L., Cali, S., Calladine, R., Calvi, M., Calvo Gomez, M., Camargo Magalhaes, P., Campana, P., Campora Perez, D.H., Campoverde Quezada, A.F., Capelli, S., Capriotti, L., Carbone, A., Carboni, G., Cardinale, R., Cardini, A., Carli, I., Carniti, P., Carus, L., Casais Vidal, A., Caspary, R., Casse, G., Cattaneo, M., Cavallero, G., Cavallini, V., Celani, S., Cerasoli, J., Cervenkov, D., Chadwick, A.J., Chapman, M.G., Charles, M., Charpentier, Ph., Chavez Barajas, C.A., Chefdeville, M., Chen, C., Chen, S., Chernov, A., Chernyshenko, S., Chobanova, V., Cholak, S., Chrzaszcz, M., Chubykin, A., Chulikov, V., Ciambrone, P., Cicala, M.F., Cid Vidal, X., Ciezarek, G., Ciullo, G., Clarke, P.E. L., Clemencic, M., Cliff, H.V., Closier, J., Cobbledick, J.L., Coco, V., Coelho, J.A. 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Subjects
Particle Physics - Experiment, High Energy Physics - Experiment
Abstract

A search for the lepton-flavour violating decays $B^0 \to K^{*0} \mu^\pm e^\mp$ and $B_s^0 \to \phi \mu^\pm e^\mp$ is presented, using proton-proton collision data collected by the LHCb detector at the LHC, corresponding to an integrated luminosity of $9\,\text{fb}^{-1}$. No significant signals are observed and upper limits of \begin{align} {\cal B}( B^0 \to K^{*0} \mu^+ e^- ) &< \phantom{1}5.7\times 10^{-9}~(6.9\times 10^{-9}),\newline {\cal B}( B^0 \to K^{*0} \mu^- e^+ ) &< \phantom{1}6.8\times 10^{-9}~(7.9\times 10^{-9}),\newline {\cal B}( B^0 \to K^{*0} \mu^\pm e^\mp ) &< 10.1\times 10^{-9}~(11.7\times 10^{-9}),\newline {\cal B}( B_s^0 \to \phi \mu^\pm e^\mp ) &< 16.0\times 10^{-9}~(19.8\times 10^{-9}) \end{align} are set at $90\%~(95\%)$ confidence level. These results constitute the world's most stringent limits to date, with the limit on the decay $B_s^0 \to \phi \mu^\pm e^\mp$ the first being set. In addition, limits are reported for scalar and left-handed lepton-flavour violating New Physics scenarios., Comment: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-008.html (LHCb public pages)

Published
2022

41. Number of events at BESIII

Author

Ablikim, M., Achasov, M.N., Adlarson, P., Ahmed, S., Albrecht, M., Aliberti, R., Amoroso, A., An, M.R., An, Q., Bai, X.H., Bai, Y., Bakina, O., Baldini Ferroli, R., Balossino, I., Ban, Y., Begzsuren, K., Berger, N., Bertani, M., Bettoni, D., Bianchi, F., Bloms, J., Bortone, A., Boyko, I., Briere, R.A., Cai, H., Cai, X., Calcaterra, A., Cao, G.F., Cao, N., Cetin, S.A., Chang, J.F., Chang, W.L., Chelkov, G., Chen, G., Chen, H.S., Chen, M.L., Chen, S.J., Chen, X.R., Chen, Y.B., Chen, Z.J., Cheng, W.S., Cibinetto, G., Cossio, F., Cui, J.J., Cui, X.F., Dai, H.L., Dai, J.P., Dai, X.C., Dbeyssi, A., de Boer, R.E., Dedovich, D., Deng, Z.Y., Denig, A., Denysenko, I., Destefanis, M., De Mori, F., Ding, Y., Dong, C., Dong, J., Dong, L.Y., Dong, M.Y., Dong, X., Du, S.X., Egorov, P., Fan, Y.L., Fang, J., Fang, S.S., Fang, Y., Farinelli, R., Fava, L., Feldbauer, F., Felici, G., Feng, C.Q., Feng, J.H., Fritsch, M., Fu, C.D., Gao, Y., Garzia, I., Ge, P.T., Geng, C., Gersabeck, E.M., Gilman, A, Goetzen, K., Gong, L., Gong, W.X., Gradl, W., Greco, M., Gu, L.M., Gu, M.H., Y Guan, C., Guo, A.Q., Guo, L.B., Guo, R.P., Guo, Y.P., Guskov, A., Han, T.T., Han, W.Y., Hao, X.Q., Harris, F.A., He, K.K., He, K.L., Heinsius, F.H., Heinz, C.H., Heng, Y.K., Herold, C., Himmelreich, M., Holtmann, T., Hou, G.Y., Hou, Y.R., Hou, Z.L., Hu, H.M., Hu, J.F., Hu, T., Hu, Y., Huang, G.S., Huang, L.Q., Huang, X.T., Huang, Y.P., Huang, Z., Hussain, T., Hüsken, N, Ikegami Andersson, W., Imoehl, W., Irshad, M., Jaeger, S., Janchiv, S., Ji, Q., Ji, Q.P., Ji, X.B., Ji, X.L., Ji, Y.Y., Jiang, H.B., Jiang, X.S., Jiao, J.B., Jiao, Z., Jin, S., Jin, Y., Jing, M.Q., Johansson, T., Kalantar-Nayestanaki, N., Kang, X.S., Kappert, R., Kavatsyuk, M., Ke, B.C., Keshk, I.K., Khoukaz, A., Kiese, P., Kiuchi, R., Kliemt, R., Koch, L., Kolcu, O.B., Kopf, B., Kuemmel, M., Kuessner, M., Kupsc, A., Kurth, M.G., Kühn, W., Lane, J.J., Lange, J.S., Larin, P., Lavania, A., Lavezzi, L., Lei, Z.H., Leithoff, H., Lellmann, M., Lenz, T., Li, C., Li, C.H., Li, Cheng, Li, D.M., Li, F., Li, G., Li, H., Li, H.B., Li, H.J., Li, H.N., Li, J.L., Li, J.Q., Li, J.S., Li, Ke, Li, L.K., Li, Lei, Li, P.R., Li, S.Y., Li, W.D., Li, W.G., Li, X.H., Li, X.L., Li, Xiaoyu, Li, Z.Y., Liang, H., Liang, Y.F., Liang, Y.T., Liao, G.R., Liao, L.Z., Libby, J., Limphirat, A., Lin, C.X., Lin, D.X., Lin, T., Liu, B.J., Liu, C.X., Liu, D., Liu, F.H., Liu, Fang, Liu, Feng, Liu, G.M., Liu, H.M., Liu, Huanhuan, Liu, Huihui, Liu, J.B., Liu, J.L., Liu, J.Y., Liu, K., Liu, K.Y., Liu, Ke, Liu, L., Liu, M.H., Liu, P.L., Liu, Q., Liu, S.B., Liu, T., Liu, W.M., Liu, X., Liu, Y., Liu, Y.B., Liu, Z.A., Liu, Z.Q., Lou, X.C., Lu, F.X., Lu, H.J., Lu, J.D., Lu, J.G., Lu, X.L., Lu, Y., Lu, Y.P., Luo, C.L., Luo, M.X., Luo, P.W., Luo, T., Luo, X.L., Lyu, X.R., Ma, F.C., Ma, H.L., Ma, L.L., Ma, M.M., Ma, Q.M., Ma, R.Q., Ma, R.T., Ma, X.X., Ma, X.Y., Ma, Y., Maas, F.E., Maggiora, M., Maldaner, S., Malde, S., Malik, Q.A., Mangoni, A., Mao, Y.J., Mao, Z.P., Marcello, S., Meng, Z.X., Messchendorp, J.G., Mezzadri, G., Min, T.J., Mitchell, R.E., Mo, X.H., Muchnoi, N. Yu., Muramatsu, H., Nakhoul, S., Nefedov, Y., Nerling, F., Nikolaev, I.B., Ning, Z., Nisar, S., Olsen, S.L., Ouyang, Q., Pacetti, S., Pan, X., Pan, Y., Pathak, A., Patteri, P., Pelizaeus, M., Peng, H.P., Peters, K., Pettersson, J., Ping, J.L., Ping, R.G., Plura, S., Pogodin, S., Poling, R., Prasad, V., Qi, H., Qi, H.R., Qi, M., Qi, T.Y., Qian, S., Qian, W.B., Qian, Z., Qiao, C.F., Qin, J.J., Qin, L.Q., Qin, X.P., Qin, X.S., Qin, Z.H., Qiu, J.F., Qu, S.Q., Rashid, K.H., Ravindran, K., Redmer, C.F., Rivetti, A., Rodin, V., Rolo, M., Rong, G., Rosner, Ch., Rump, M., Sang, H.S., Sarantsev, A., Schelhaas, Y., Schnier, C., Schoenning, K., Scodeggio, M., Shan, W., Shan, X.Y., Shangguan, J.F., Shao, M., Shen, C.P., Shen, H.F., Shen, X.Y., Shi, H.C., Shi, R.S., Shi, X., D Shi, X., Song, J.J., Song, W.M., Song, Y.X., Sosio, S., Spataro, S., Stieler, F., Su, K.X., Su, P.P., Sun, G.X., Sun, H.K., Sun, J.F., Sun, L., Sun, S.S., Sun, T., Sun, W.Y., Sun, X, Sun, Y.J., Sun, Y.Z., Sun, Z.T., Tan, Y.H., Tan, Y.X., Tang, C.J., Tang, G.Y., Tang, J., Tao, Q.T., Teng, J.X., Thoren, V., Tian, W.H., Tian, Y.T., Uman, I., Wang, B., Wang, C.W., Wang, D.Y., Wang, H.J., Wang, H.P., Wang, K., Wang, L.L., Wang, M., Wang, M.Z., Wang, Meng, Wang, S., Wang, W., Wang, W.H., Wang, W.P., Wang, X., Wang, X.F., Wang, X.L., Wang, Y., Wang, Y.D., Wang, Y.F., Wang, Y.Q., Wang, Y.Y., Wang, Z., Wang, Z.Y., Wang, Ziyi, Wang, Zongyuan, Wei, D.H., Weidner, F., Wen, S.P., White, D.J., Wiedner, U., Wilkinson, G., Wolke, M., Wollenberg, L., Wu, J.F., Wu, L.H., Wu, L.J., Wu, X., Wu, X.H., Wu, Z., Xia, L., Xiang, T., Xiao, H., Xiao, S.Y., Xiao, Z.J., Xie, X.H., Xie, Y.G., Xie, Y.H., Xing, T.Y., Xu, C.J., Xu, G.F., Xu, Q.J., Xu, W., Xu, X.P., Xu, Y.C., Yan, F., Yan, L., Yan, W.B., Yan, W.C., Yang, H.J., Yang, H.X., Yang, L., Yang, S.L., Yang, Y.X., Yang, Yifan, Yang, Zhi, Ye, M., Ye, M.H., Yin, J.H., You, Z.Y., Yu, B.X., Yu, C.X., Yu, G., Yu, J.S., Yu, T., Yuan, C.Z., Yuan, L., Yuan, Y., Yuan, Z.Y., Yue, C.X., Zafar, A.A., Zeng Zeng, X., Zeng, Y., Zhang, A.Q., Zhang, B.X., Zhang, G.Y., Zhang, H., Zhang, H.H., Zhang, H.Y., Zhang, J.L., Zhang, J.Q., Zhang, J.W., Zhang, J.Y., Zhang, J.Z., Zhang, Jianyu, Zhang, Jiawei, Zhang, L.M., Zhang, L.Q., Zhang, Lei, Zhang, S., Zhang, S.F., Zhang, Shulei, Zhang, X.D., Zhang, X.M., Zhang, X.Y., Zhang, Y., Zhang, Y.T., Zhang, Y.H., Zhang, Yan, Zhang, Yao, Zhang, Z.Y., Zhao, G., Zhao, J., Zhao, J.Y., Zhao, J.Z., Zhao, Lei, Zhao, Ling, Zhao, M.G., Zhao, Q., Zhao, S.J., Zhao, Y.B., Zhao, Y.X., Zhao, Z.G., Zhemchugov, A., Zheng, B., Zheng, J.P., Zheng, Y.H., Zhong, B., Zhong, C., Zhou, L.P., Zhou, Q., Zhou, X., Zhou, X.K., Zhou, X.R., Zhou, X.Y., Zhu, A.N., Zhu, J., Zhu, K., Zhu, K.J., Zhu, S.H., Zhu, T.J., Zhu, W.J., Zhu, Y.C., Zhu, Z.A., Zou, B.S., Zou, J.H., and (BESIII Collaboration)

Abstract

Using inclusive decays of $J/\psi $ , a precise determination of the number of $J/\psi $ events collected with the BESIII detector was performed. For the two data sets taken in 2009 and 2012, the numbers of $J/\psi $ events were recalculated to be $J/\psi $ and $J/\psi $ , respectively; these numbers are in good agreement with the previous measurements. For the $J/\psi $ sample taken in 2017–2019, the number of events was determined to be $J/\psi $ . The total number of $J/\psi $ events collected with the BESIII detector was determined to be $J/\psi $ , where the uncertainty is dominated by systematic effects, and the statistical uncertainty is negligible.

Published
2022

42. Measurement of the e+e−→Σ0Σ¯0 cross sections at center-of-mass energies from 2.3864 to 3.0200 GeV

Author

Ablikim, M., primary, Achasov, M.N., additional, Adlarson, P., additional, Ahmed, S., additional, Albrecht, M., additional, Amoroso, A., additional, An, Q., additional, Bai, Y., additional, Bakina, O., additional, Baldini Ferroli, R., additional, Balossino, I., additional, Ban, Y., additional, Begzsuren, K., additional, Bennett, J.V., additional, Berger, N., additional, Bertani, M., additional, Bettoni, D., additional, Bianchi, F., additional, Biernat, J., additional, Bloms, J., additional, Bortone, A., additional, Boyko, I., additional, Briere, R.A., additional, Cai, H., additional, Cai, X., additional, Calcaterra, A., additional, Cao, G.F., additional, Cao, N., additional, Cetin, S.A., additional, Chang, J.F., additional, Chang, W.L., additional, Chelkov, G., additional, Chen, D.Y., additional, Chen, G., additional, Chen, H.S., additional, Chen, M.L., additional, Chen, S.J., additional, Chen, X.R., additional, Chen, Y.B., additional, Cheng, W., additional, Cibinetto, G., additional, Cossio, F., additional, Cui, X.F., additional, Dai, H.L., additional, Dai, J.P., additional, Dai, X.C., additional, Dbeyssi, A., additional, de Boer, R.B., additional, Dedovich, D., additional, Deng, Z.Y., additional, Denig, A., additional, Denysenko, I., additional, Destefanis, M., additional, De Mori, F., additional, Ding, Y., additional, Dong, C., additional, Dong, J., additional, Dong, L.Y., additional, Dong, M.Y., additional, Du, S.X., additional, Fang, J., additional, Fang, S.S., additional, Fang, Y., additional, Farinelli, R., additional, Fava, L., additional, Feldbauer, F., additional, Felici, G., additional, Feng, C.Q., additional, Fritsch, M., additional, Fu, C.D., additional, Fu, Y., additional, Gao, X.L., additional, Gao, Y., additional, Gao, Y.G., additional, Garzia, I., additional, Gersabeck, E.M., additional, Gilman, A., additional, Goetzen, K., additional, Gong, L., additional, Gong, W.X., additional, Gradl, W., additional, Greco, M., additional, Gu, L.M., additional, Gu, M.H., additional, Gu, S., additional, Gu, Y.T., additional, Guan, C.Y., additional, Guo, A.Q., additional, Guo, L.B., additional, Guo, R.P., additional, Guo, Y.P., additional, Guskov, A., additional, Han, S., additional, Han, T.T., additional, Han, T.Z., additional, Hao, X.Q., additional, Harris, F.A., additional, He, K.L., additional, Heinsius, F.H., additional, Held, T., additional, Heng, Y.K., additional, Himmelreich, M., additional, Holtmann, T., additional, Hou, Y.R., additional, Hou, Z.L., additional, Hu, H.M., additional, Hu, J.F., additional, Hu, T., additional, Hu, Y., additional, Huang, G.S., additional, Huang, L.Q., additional, Huang, X.T., additional, Huang, Z., additional, Huesken, N., additional, Hussain, T., additional, Ikegami Andersson, W., additional, Imoehl, W., additional, Irshad, M., additional, Jaeger, S., additional, Janchiv, S., additional, Ji, Q., additional, Ji, Q.P., additional, Ji, X.B., additional, Ji, X.L., additional, Jiang, H.B., additional, Jiang, X.S., additional, Jiang, X.Y., additional, Jiao, J.B., additional, Jiao, Z., additional, Jin, S., additional, Jin, Y., additional, Johansson, T., additional, Kalantar-Nayestanaki, N., additional, Kang, X.S., additional, Kappert, R., additional, Kavatsyuk, M., additional, Ke, B.C., additional, Keshk, I.K., additional, Khoukaz, A., additional, Kiese, P., additional, Kiuchi, R., additional, Kliemt, R., additional, Koch, L., additional, Kolcu, O.B., additional, Kopf, B., additional, Kuemmel, M., additional, Kuessner, M., additional, Kupsc, A., additional, Kurth, M.G., additional, Kühn, W., additional, Lane, J.J., additional, Lange, J.S., additional, Larin, P., additional, Lavezzi, L., additional, Leithoff, H., additional, Lellmann, M., additional, Lenz, T., additional, Li, C., additional, Li, C.H., additional, Li, Cheng, additional, Li, D.M., additional, Li, F., additional, Li, G., additional, Li, H.B., additional, Li, H.J., additional, Li, J.L., additional, Li, J.Q., additional, Li, Ke, additional, Li, L.K., additional, Li, Lei, additional, Li, P.L., additional, Li, P.R., additional, Li, S.Y., additional, Li, W.D., additional, Li, W.G., additional, Li, X.H., additional, Li, X.L., additional, Li, Z.B., additional, Li, Z.Y., additional, Liang, H., additional, Liang, Y.F., additional, Liang, Y.T., additional, Liao, L.Z., additional, Libby, J., additional, Lin, C.X., additional, Liu, B., additional, Liu, B.J., additional, Liu, C.X., additional, Liu, D., additional, Liu, D.Y., additional, Liu, F.H., additional, Liu, Fang, additional, Liu, Feng, additional, Liu, H.B., additional, Liu, H.M., additional, Liu, Huanhuan, additional, Liu, Huihui, additional, Liu, J.B., additional, Liu, J.Y., additional, Liu, K., additional, Liu, K.Y., additional, Liu, Ke, additional, Liu, L., additional, Liu, Q., additional, Liu, S.B., additional, Liu, Shuai, additional, Liu, T., additional, Liu, X., additional, Liu, Y.B., additional, Liu, Z.A., additional, Liu, Z.Q., additional, Long, Y.F., additional, Lou, X.C., additional, Lu, F.X., additional, Lu, H.J., additional, Lu, J.D., additional, Lu, J.G., additional, Lu, X.L., additional, Lu, Y., additional, Lu, Y.P., additional, Luo, C.L., additional, Luo, M.X., additional, Luo, P.W., additional, Luo, T., additional, Luo, X.L., additional, Lusso, S., additional, Lyu, X.R., additional, Ma, F.C., additional, Ma, H.L., additional, Ma, L.L., additional, Ma, M.M., additional, Ma, Q.M., additional, Ma, R.Q., additional, Ma, R.T., additional, Ma, X.N., additional, Ma, X.X., additional, Ma, X.Y., additional, Ma, Y.M., additional, Maas, F.E., additional, Maggiora, M., additional, Maldaner, S., additional, Malde, S., additional, Malik, Q.A., additional, Mangoni, A., additional, Mao, Y.J., additional, Mao, Z.P., additional, Marcello, S., additional, Meng, Z.X., additional, Messchendorp, J.G., additional, Mezzadri, G., additional, Min, T.J., additional, Mitchell, R.E., additional, Mo, X.H., additional, Mo, Y.J., additional, Muchnoi, N.Yu., additional, Muramatsu, H., additional, Nakhoul, S., additional, Nefedov, Y., additional, Nerling, F., additional, Nikolaev, I.B., additional, Ning, Z., additional, Nisar, S., additional, Olsen, S.L., additional, Ouyang, Q., additional, Pacetti, S., additional, Pan, X., additional, Pan, Y., additional, Pathak, A., additional, Patteri, P., additional, Pelizaeus, M., additional, Peng, H.P., additional, Peters, K., additional, Pettersson, J., additional, Ping, J.L., additional, Ping, R.G., additional, Pitka, A., additional, Poling, R., additional, Prasad, V., additional, Qi, H., additional, Qi, H.R., additional, Qi, M., additional, Qi, T.Y., additional, Qian, S., additional, Qian, W.-B., additional, Qian, Z., additional, Qiao, C.F., additional, Qin, L.Q., additional, Qin, X.P., additional, Qin, X.S., additional, Qin, Z.H., additional, Qiu, J.F., additional, Qu, S.Q., additional, Rashid, K.H., additional, Ravindran, K., additional, Redmer, C.F., additional, Rivetti, A., additional, Rodin, V., additional, Rolo, M., additional, Rong, G., additional, Rosner, Ch., additional, Rump, M., additional, Sarantsev, A., additional, Savrié, M., additional, Schelhaas, Y., additional, Schnier, C., additional, Schoenning, K., additional, Shan, D.C., additional, Shan, W., additional, Shan, X.Y., additional, Shao, M., additional, Shen, C.P., additional, Shen, P.X., additional, Shen, X.Y., additional, Shi, H.C., additional, Shi, R.S., additional, Shi, X., additional, Shi, X.D., additional, Song, J.J., additional, Song, Q.Q., additional, Song, W.M., additional, Song, Y.X., additional, Sosio, S., additional, Spataro, S., additional, Sui, F.F., additional, Sun, G.X., additional, Sun, J.F., additional, Sun, L., additional, Sun, S.S., additional, Sun, T., additional, Sun, W.Y., additional, Sun, Y.J., additional, Sun, Y.K., additional, Sun, Y.Z., additional, Sun, Z.T., additional, Tan, Y.H., additional, Tan, Y.X., additional, Tang, C.J., additional, Tang, G.Y., additional, Tang, J., additional, Thoren, V., additional, Tsednee, B., additional, Uman, I., additional, Wang, B., additional, Wang, B.L., additional, Wang, C.W., additional, Wang, D.Y., additional, Wang, H.P., additional, Wang, K., additional, Wang, L.L., additional, Wang, M., additional, Wang, M.Z., additional, Wang, Meng, additional, Wang, W.H., additional, Wang, W.P., additional, Wang, X., additional, Wang, X.F., additional, Wang, X.L., additional, Wang, Y., additional, Wang, Y.D., additional, Wang, Y.F., additional, Wang, Y.Q., additional, Wang, Z., additional, Wang, Z.Y., additional, Wang, Ziyi, additional, Wang, Zongyuan, additional, Weber, T., additional, Wei, D.H., additional, Weidenkaff, P., additional, Weidner, F., additional, Wen, S.P., additional, White, D.J., additional, Wiedner, U., additional, Wilkinson, G., additional, Wolke, M., additional, Wollenberg, L., additional, Wu, J.F., additional, Wu, L.H., additional, Wu, L.J., additional, Wu, X., additional, Wu, Z., additional, Xia, L., additional, Xiao, H., additional, Xiao, S.Y., additional, Xiao, Y.J., additional, Xiao, Z.J., additional, Xie, X.H., additional, Xie, Y.G., additional, Xie, Y.H., additional, Xing, T.Y., additional, Xiong, X.A., additional, Xu, G.F., additional, Xu, J.J., additional, Xu, Q.J., additional, Xu, W., additional, Xu, X.P., additional, Yan, L., additional, Yan, W.B., additional, Yan, W.C., additional, Yan, Xu, additional, Yang, H.J., additional, Yang, H.X., additional, Yang, L., additional, Yang, R.X., additional, Yang, S.L., additional, Yang, Y.H., additional, Yang, Y.X., additional, Yang, Yifan, additional, Yang, Zhi, additional, Ye, M., additional, Ye, M.H., additional, Yin, J.H., additional, You, Z.Y., additional, Yu, B.X., additional, Yu, C.X., additional, Yu, G., additional, Yu, J.S., additional, Yu, T., additional, Yuan, C.Z., additional, Yuan, W., additional, Yuan, X.Q., additional, Yuan, Y., additional, Yuan, Z.Y., additional, Yue, C.X., additional, Yuncu, A., additional, Zafar, A.A., additional, Zeng, Y., additional, Zhang, B.X., additional, Zhang, Guangyi, additional, Zhang, H.H., additional, Zhang, H.Y., additional, Zhang, J.L., additional, Zhang, J.Q., additional, Zhang, J.W., additional, Zhang, J.Y., additional, Zhang, J.Z., additional, Zhang, Jianyu, additional, Zhang, Jiawei, additional, Zhang, L., additional, Zhang, Lei, additional, Zhang, S., additional, Zhang, S.F., additional, Zhang, T.J., additional, Zhang, X.Y., additional, Zhang, Y., additional, Zhang, Y.H., additional, Zhang, Y.T., additional, Zhang, Yan, additional, Zhang, Yao, additional, Zhang, Yi, additional, Zhang, Z.H., additional, Zhang, Z.Y., additional, Zhao, G., additional, Zhao, J., additional, Zhao, J.Y., additional, Zhao, J.Z., additional, Zhao, Lei, additional, Zhao, Ling, additional, Zhao, M.G., additional, Zhao, Q., additional, Zhao, S.J., additional, Zhao, Y.B., additional, Zhao, Y.X., additional, Zhao, Z.G., additional, Zhemchugov, A., additional, Zheng, B., additional, Zheng, J.P., additional, Zheng, Y., additional, Zheng, Y.H., additional, Zhong, B., additional, Zhong, C., additional, Zhou, L.P., additional, Zhou, Q., additional, Zhou, X., additional, Zhou, X.K., additional, Zhou, X.R., additional, Zhu, A.N., additional, Zhu, J., additional, Zhu, K., additional, Zhu, K.J., additional, Zhu, S.H., additional, Zhu, W.J., additional, Zhu, X.L., additional, Zhu, Y.C., additional, Zhu, Z.A., additional, Zou, B.S., additional, and Zou, J.H., additional

Published
2022
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44. Observation of *

Author

Ablikim, M., Achasov, M.N., Adlarson, P., Albrecht, M., Aliberti, R., Amoroso, A., An, M.R., An, Q., Bai, X.H., Bai, Y., Bakina, O., Baldini Ferroli, R., Balossino, I., Ban, Y., Batozskaya, V., Becker, D., Begzsuren, K., Berger, N., Bertani, M., Bettoni, D., Bianchi, F., Bloms, J., Bortone, A., Boyko, I., Briere, R.A., Brueggemann, A., Cai, H., Cai, X., Calcaterra, A., Cao, G.F., Cao, N., Cetin, S.A., Chang, J.F., Chang, W.L., Chelkov, G., Chen, C., Chen, Chao, Chen, G., Chen, H.S., Chen, M.L., Chen, S.J., Chen, S.M., Chen, T., Chen, X.R., Chen, X.T., Chen, Y.B., Chen, Z.J., Cheng, W.S., Chu, X., Cibinetto, G., Cossio, F., Cui, J.J., Dai, H.L., Dai, J.P., Dbeyssi, A., de Boer, R.E., Dedovich, D., Deng, Z.Y., Denig, A., Denysenko, I., Destefanis, M., De Mori, F., Ding, Y., Dong, J., Dong, L.Y., Dong, M.Y., Dong, X., Du, S.X., Egorov, P., Fan, Y.L., Fang, J., Fang, S.S., Fang, W.X., Fang, Y., Farinelli, R., Fava, L., Feldbauer, F., Felici, G., Feng, C.Q., Feng, J.H., Fischer, K, Fritsch, M., Fritzsch, C., Fu, C.D., Gao, H., Gao, Y.N., Gao, Yang, Garbolino, S., Garzia, I., Ge, P.T., Ge, Z.W., Geng, C., Gersabeck, E.M., Gilman, A, Goetzen, K., Gong, L., Gong, W.X., Gradl, W., Greco, M., Gu, L.M., Gu, M.H., Gu, Y.T., Guan, C.Y., Guo, A.Q., Guo, L.B., Guo, R.P., Guo, Y.P., Guskov, A., Han, T.T., Han, W.Y., Hao, X.Q., Harris, F.A., He, K.K., He, K.L., Heinsius, F.H., Heinz, C.H., Heng, Y.K., Herold, C., Himmelreich, M., Hou, G.Y., Hou, Y.R., Hou, Z.L., Hu, H.M., Hu, J.F., Hu, T., Hu, Y., Huang, G.S., Huang, K.X., Huang, L.Q., Huang, X.T., Huang, Y.P., Huang, Z., Hussain, T., Hüsken, N, Imoehl, W., Irshad, M., Jackson, J., Jaeger, S., Janchiv, S., Ji, Q., Ji, Q.P., Ji, X.B., Ji, X.L., Ji, Y.Y., Jia, Z.K., Jiang, H.B., Jiang, S.S., Jiang, X.S., Jiang, Y., Jiao, J.B., Jiao, Z., Jin, S., Jin, Y., Jing, M.Q., Johansson, T., Kalantar-Nayestanaki, N., Kang, X.S., Kappert, R., Ke, B.C., Keshk, I.K., Khoukaz, A., Kiese, P., Kiuchi, R., Kliemt, R., Koch, L., Kolcu, O.B., Kopf, B., Kuemmel, M., Kuessner, M., Kupsc, A., Kühn, W., Lane, J.J., Lange, J.S., Larin, P., Lavania, A., Lavezzi, L., Lei, Z.H., Leithoff, H., Lellmann, M., Lenz, T., Li, C., Li, C.H., Li, Cheng, Li, D.M., Li, F., Li, G., Li, H., Li, H.B., Li, H.J., Li, H.N., Li, J.Q., Li, J.S., Li, J.W., Li, Ke, Li, L.J., Li, L.K., Li, Lei, Li, M.H., Li, P.R., Li, S.X., Li, S.Y., Li, T., Li, W.D., Li, W.G., Li, X.H., Li, X.L., Li, Xiaoyu, Liang, H., Liang, Y.F., Liang, Y.T., Liao, G.R., Liao, L.Z., Libby, J., Limphirat, A., Lin, C.X., Lin, D.X., Lin, T., Liu, B.J., Liu, C.X., Liu, D., Liu, F.H., Liu, Fang, Liu, Feng, Liu, G.M., Liu, H., Liu, H.B., Liu, H.M., Liu, Huanhuan, Liu, Huihui, Liu, J.B., Liu, J.L., Liu, J.Y., Liu, K., Liu, K.Y., Liu, Ke, Liu, L., Liu, Lu, Liu, M.H., Liu, P.L., Liu, Q., Liu, S.B., Liu, T., Liu, W.K., Liu, W.M., Liu, X., Liu, Y., Liu, Y.B., Liu, Z.A., Liu, Z.Q., Lou, X.C., Lu, F.X., Lu, H.J., Lu, J.G., Lu, X.L., Lu, Y., Lu, Y.P., Lu, Z.H., Luo, C.L., Luo, M.X., Luo, T., Luo, X.L., Lyu, X.R., Lyu, Y.F., Ma, F.C., Ma, H.L., Ma, L.L., Ma, M.M., Ma, Q.M., Ma, R.Q., Ma, R.T., Ma, X.Y., Ma, Y., Maas, F.E., Maggiora, M., Maldaner, S., Malde, S., Malik, Q.A., Mangoni, A., Mao, Y.J., Mao, Z.P., Marcello, S., Meng, Z.X., Messchendorp, J.G., Mezzadri, G., Miao, H., Min, T.J., Mitchell, R.E., Mo, X.H., Muchnoi, N. Yu., Nefedov, Y., Nerling, F., Nikolaev, I.B., Ning, Z., Nisar, S., Niu, Y., Olsen, S.L., Ouyang, Q., Pacetti, S., Pan, X., Pan, Y., Pathak, A., Pelizaeus, M., Peng, H.P., Peters, K., Ping, J.L., Ping, R.G., Plura, S., Pogodin, S., Prasad, V., Qi, F.Z., Qi, H., Qi, H.R., Qi, M., Qi, T.Y., Qian, S., Qian, W.B., Qian, Z., Qiao, C.F., Qin, J.J., Qin, L.Q., Qin, X.P., Qin, X.S., Qin, Z.H., Qiu, J.F., Qu, S.Q., Rashid, K.H., Redmer, C.F., Ren, K.J., Rivetti, A., Rodin, V., Rolo, M., Rong, G., Rosner, Ch., Ruan, S.N., Sang, H.S., Sarantsev, A., Schelhaas, Y., Schnier, C., Schoenning, K., Scodeggio, M., Shan, K.Y., Shan, W., Shan, X.Y., Shangguan, J.F., Shao, L.G., Shao, M., Shen, C.P., Shen, H.F., Shen, X.Y., Shi, B.A., Shi, H.C., Shi, J.Y., Shi, Q.Q., Shi, R.S., Shi, X., D Shi, X., Song, J.J., Song, W.M., Song, Y.X., Sosio, S., Spataro, S., Stieler, F., Su, K.X., Su, P.P., Su, Y.J., Sun, G.X., Sun, H., Sun, H.K., Sun, J.F., Sun, L., Sun, S.S., Sun, T., Sun, W.Y., Sun, X, Sun, Y.J., Sun, Y.Z., Sun, Z.T., Tan, Y.H., Tan, Y.X., Tang, C.J., Tang, G.Y., Tang, J., Tao, L.Y., Tao, Q.T., Tat, M., Teng, J.X., Thoren, V., Tian, W.H., Tian, Y., Uman, I., Wang, B., Wang, B.L., Wang, C.W., Wang, D.Y., Wang, F., Wang, H.J., Wang, H.P., Wang, K., Wang, L.L., Wang, M., Wang, M.Z., Wang, Meng, Wang, S., Wang, T., Wang, T.J., Wang, W., Wang, W.H., Wang, W.P., Wang, X., Wang, X.F., Wang, X.L., Wang, Y., Wang, Y.D., Wang, Y.F., Wang, Y.H., Wang, Y.Q., Wang, Yaqian, Wang, Z., Wang, Z.Y., Wang, Ziyi, Wei, D.H., Weidner, F., Wen, S.P., White, D.J., Wiedner, U., Wilkinson, G., Wolke, M., Wollenberg, L., Wu, J.F., Wu, L.H., Wu, L.J., Wu, X., Wu, X.H., Wu, Y., Wu, Z., Xia, L., Xiang, T., Xiao, D., Xiao, G.Y., Xiao, H., Xiao, S.Y., Xiao, Y.L., Xiao, Z.J., Xie, C., Xie, X.H., Xie, Y., Xie, Y.G., Xie, Y.H., Xie, Z.P., Xing, T.Y., Xu, C.F., Xu, C.J., Xu, G.F., Xu, H.Y., Xu, Q.J., Xu, X.P., Xu, Y.C., Xu, Z.P., Yan, F., Yan, L., Yan, W.B., Yan, W.C., Yang, H.J., Yang, H.L., Yang, H.X., Yang, L., Yang, S.L., Yang, Tao, Yang, Y.F., Yang, Y.X., Yang, Yifan, Ye, M., Ye, M.H., Yin, J.H., You, Z.Y., Yu, B.X., Yu, C.X., Yu, G., Yu, T., Yuan, C.Z., Yuan, L., Yuan, S.C., Yuan, X.Q., Yuan, Y., Yuan, Z.Y., Yue, C.X., Zafar, A.A., Zeng, F.R., Zeng, X., Zeng, Y., Zhan, Y.H., Zhang, A.Q., Zhang, B.L., Zhang, B.X., Zhang, D.H., Zhang, G.Y., Zhang, H., Zhang, H.H., Zhang, H.Y., Zhang, J.L., Zhang, J.Q., Zhang, J.W., Zhang, J.X., Zhang, J.Y., Zhang, J.Z., Zhang, Jianyu, Zhang, Jiawei, Zhang, L.M., Zhang, L.Q., Zhang, Lei, Zhang, P., Zhang, Q.Y., Zhang, Shuihan, Zhang, Shulei, Zhang, X.D., Zhang, X.M., Zhang, X.Y., Zhang, Y., Zhang, Y.T., Zhang, Y.H., Zhang, Yan, Zhang, Yao, Zhang, Z.H., Zhang, Z.Y., Zhao, G., Zhao, J., Zhao, J.Y., Zhao, J.Z., Zhao, Lei, Zhao, Ling, Zhao, M.G., Zhao, Q., Zhao, S.J., Zhao, Y.B., Zhao, Y.X., Zhao, Z.G., Zhemchugov, A., Zheng, B., Zheng, J.P., Zheng, Y.H., Zhong, B., Zhong, C., Zhong, X., Zhou, H., Zhou, L.P., Zhou, X., Zhou, X.K., Zhou, X.R., Zhou, X.Y., Zhou, Y.Z., Zhu, J., Zhu, K., Zhu, K.J., Zhu, L.X., Zhu, S.H., Zhu, S.Q., Zhu, T.J., Zhu, W.J., Zhu, Y.C., Zhu, Z.A., Zou, B.S., Zou, J.H., and (BESIII Collaboration)

Subjects
Nuclear and High Energy Physics, Astronomy and Astrophysics, Instrumentation
Abstract

Using data taken at 29 center-of-mass energies between 4.16 and 4.70 GeV with the BESIII detector at the Beijing Electron Positron Collider corresponding to a total integrated luminosity of approximately 18.8 , the process is observed for the first time with a statistical significance of . The average Born cross sections in the energy ranges of (4.160, 4.380) GeV, (4.400, 4.600) GeV and (4.610, 4.700) GeV are measured to be fb, fb and fb, respectively, where the first uncertainties are statistical and the second are systematic. The line shapes of the and invariant mass spectra are consistent with phase space distributions, indicating that no hexaquark or di-baryon state is observed.

Published
2023

45. Centrifuge modelling of an instrumented free-fall sphere for measurement of undrained strength in fine-grained soils

Author

Morton, J.P., O'Loughlin, C.D., and White, D.J.

Subjects
Shear strength of soils -- Research, Clay soils -- Research, Soil research, Earth sciences
Abstract

This paper describes centrifuge tests in which a model free-fall sphere was allowed to free fall in water before dynamically embedding within reconstituted samples of kaolin clay and two offshore natural clays. Instrumentation within the sphere measured accelerations along three orthogonal axes. The resultant acceleration was used to calculate sphere velocities and displacements. This allowed the penetration resistance acting on the sphere to be expressed in terms of a single capacity factor that captures soil resistance from both shearing and drag, and varies uniquely with the non-Newtonian Reynolds number. Undrained shear strength profiles obtained from a simple inverse analysis of the acceleration data show good agreement with those obtained using conventional push-in penetrometer tests. Key words: sphere, clay, free fall, dynamic, fluid drag, physical modelling, soil strength. Le present article decrit les essais en centrifugeuse, durant lesquels on laisse tomber en chute libre une sphere experimentale dans de l'eau avant que celle-ci soit enfouie de maniere dynamique dans des echantillons reconstitues d'argile kaolinique et d'argiles marines naturelles. Les appareils de mesure installes dans la sphere ont mesure l'acceleration selon trois axes orthogonaux. L'acceleration resultante a servi calculer la vitesse et les deplacements de la sphere. Cela a permis d'exprimer la resistance la penetration s'exercant sur la sphere sous la forme d'un facteur de capacite unique qui rend compte de la resistance du sol en fonction du cisaillement et de la trainee et varie uniquement avec le nombre de Reynolds non newtonien. Les profils de resistance au cisaillement non draine obtenus partir d'une simple analyse inverse des donnees d'acceleration semblent bien concorder avec ceux obtenus grace des essais classiques d'enfoncement au penetrometre. [Traduit par la Redaction] Mots-cles: sphere, argile, chute libre, dynamique, resistance aux fluides, modelisation physique, resistance du sol., Introduction Assessments of seabed strength for design are often based on interpretations of the penetration resistance of a cone, T-bar, or ball penetrometer as it is pushed into the soil. [...]

Published
2016
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46. Improved image-based deformation measurement for geotechnical applications

Author

Stanier, S.A., Blaber, J., Take, W.A., and White, D.J.

Subjects
Geotechnology -- Methods, Deformations (Mechanics) -- Measurement, Algorithms -- Measurement -- Technology application -- Usage, Algorithm, Earth sciences
Abstract

This paper describes and benchmarks a new implementation of image-based deformation measurement for geotechnical applications. The updated approach combines a range of advances in image analysis algorithms and techniques best suited to geotechnical applications. Performance benchmarking of the new approach has used a series of artificial images subjected to prescribed spatially varying displacement fields. An improvement by at least a factor of 10 in measurement precision is achieved relative to the most commonly used particle image velocimetry (PIV) approach for all deformation modes, including rigid-body displacements, rotations, and strains (compressive and shear). Lastly, an example analysis of a centrifuge model test is used to demonstrate the capabilities of the new approach. The strain field generated by penetration of a flat footing and an entrapped sand plug into an underlying clay layer is computed and compared for both the current and updated algorithms. This analysis demonstrates that the enhanced measurement precision improves the clarity of the interpretation. Key words: image analysis, model tests, particle image velocimetry, digital image correlation. Le present article decrit et evalue la mise en oeuvre recente d'une nouvelle methode de mesure de deformation basee sur des images et applicable au domaine de la l'ingenierie geotechnique. Cette nouvelle methode combine une serie d'ameliorations apportees aux algorithmes et techniques d'analyse d'images specialement adaptes au domaine de l'ingenierie geotechnique. L'evaluation des performances de cette nouvelle methode a ete realisee a l'aide d'une serie d'images artificielles soumises a des champs de deplacement definis et variant dans l'espace. Une amelioration de la precision des mesures d'un facteur au moins egal a dix est obtenue si l'on utilise la nouvelle methode plutot que la methode la plus souvent employee de la velocimetrie par images de particules (VIP), et ce pour tous les modes de deformation, y compris les deplacements, rotations et deformations (par compression ou par cisaillement) de corps rigides. Enfin, on se sert d'un exemple d'analyse d'un essai sur modele en centrifugeuse pour montrer ce que permet de realiser la nouvelle methode. Le champ de deformation genere par la penetration d'un socle plat et d'un bouchon de sable piege dans une couche d'argile sous-jacente est calcule et compare aux algorithmes nouveaux et actuels. Cette analyse montre que la plus grande precision des mesures permet d'ameliorer la clarte de l'interpretation. [Traduit par la Redaction] Mots-cles : analyse des images, essais sur modele, velocimetrie par images de particules, correlation d'images numeriques., Introduction Measurement of soil deformations in geotechnical models using particle image velocimetry (PIV) techniques (Adrian 1991) --also known as digital image correlation (DIC) (Sutton et al. 1983, 2000)--has become routine [...]

Published
2016
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48. Study of coherent charmonium production in ultra-peripheral lead-lead collisions

Author

Aaij, R., Abdelmotteleb, A.S. W., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., Agapopoulou, C., Aidala, C.A., Aiola, S., Ajaltouni, Z., Akar, S., Akiba, K., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Aliouche, Z., Alvarez Cartelle, P., Amalric, R., Amato, S., Amey, J.L., Amhis, Y., An, L., Anderlini, L., Andersson, M., Andreianov, A., Andreotti, M., Andreou, D., Ao, D., Archilli, F., Artamonov, A., Artuso, M., Aslanides, E., Atzeni, M., Audurier, B., Bachmann, S., Bachmayer, M., Back, J.J., Bailly-reyre, A., Baladron Rodriguez, P., Balagura, V., Baldini, W., Baptista de Souza Leite, J., Barbetti, M., Barlow, R.J., Barsuk, S., Barter, W., Bartolini, M., Baryshnikov, F., Basels, J.M., Bassi, G., Batsukh, B., Battig, A., Bay, A., Beck, A., Becker, M., Bedeschi, F., Bediaga, I.B., Beiter, A., Belavin, V., Belin, S., Bellee, V., Belous, K., Belov, I., Belyaev, I., Benane, G., Bencivenni, G., Ben-Haim, E., Berezhnoy, A., Bernet, R., Berninghoff, D., Bernstein, H.C., Bertella, C., Bertolin, A., Betancourt, C., Betti, F., Bezshyiko, Ia., Bhasin, S., Bhom, J., Bian, L., Bieker, M.S., Biesuz, N.V., Bifani, S., Billoir, P., Biolchini, A., Birch, M., Bishop, F.C. R., Bitadze, A., Bizzeti, A., Blago, M.P., Blake, T., Blanc, F., Blusk, S., Bobulska, D., Boelhauve, J.A., Boente Garcia, O., Boettcher, T., Boldyrev, A., Bolognani, C.S., Bondar, N., Borghi, S., Borsato, M., Borsuk, J.T., Bouchiba, S.A., Bowcock, T.J. V., Boyer, A., Bozzi, C., Bradley, M.J., Braun, S., Brea Rodriguez, A., Brodzicka, J., Brossa Gonzalo, A., Brundu, D., Buonaura, A., Buonincontri, L., Burke, A.T., Burr, C., Bursche, A., Butkevich, A., Butter, J.S., Buytaert, J., Byczynski, W., Cadeddu, S., Cai, H., Calabrese, R., Calefice, L., Cali, S., Calladine, R., Calvi, M., Calvo Gomez, M., Camargo Magalhaes, P., Campana, P., Campora Perez, D.H., Campoverde Quezada, A.F., Capelli, S., Capriotti, L., Carbone, A., Carboni, G., Cardinale, R., Cardini, A., Carli, I., Carniti, P., Carus, L., Casais Vidal, A., Caspary, R., Casse, G., Cattaneo, M., Cavallero, G., Cavallini, V., Celani, S., Cerasoli, J., Cervenkov, D., Chadwick, A.J., Chapman, M.G., Charles, M., Charpentier, Ph., Chavez Barajas, C.A., Chefdeville, M., Chen, C., Chen, S., Chernov, A., Chernyshenko, S., Chobanova, V., Cholak, S., Chrzaszcz, M., Chubykin, A., Chulikov, V., Ciambrone, P., Cicala, M.F., Cid Vidal, X., Ciezarek, G., Ciullo, G., Clarke, P.E. L., Clemencic, M., Cliff, H.V., Closier, J., Cobbledick, J.L., Coco, V., Coelho, J.A. B., Cogan, J., Cogneras, E., Cojocariu, L., Collins, P., Colombo, T., Congedo, L., Contu, A., Cooke, N., Coombs, G., Corredoira, I., Corti, G., Couturier, B., Craik, D.C., Crkovská, J., Cruz Torres, M., Currie, R., Da Silva, C.L., Dadabaev, S., Dai, L., Dai, X., Dall’Occo, E., Dalseno, J., D’Ambrosio, C., Danilina, A., d’Argent, P., Davies, J.E., Davis, A., De Aguiar Francisco, O., de Boer, J., De Bruyn, K., De Capua, S., De Cian, M., De Freitas Carneiro Da Graca, U., De Lucia, E., De Miranda, J.M., De Paula, L., De Serio, M., De Simone, D., De Simone, P., De Vellis, F., de Vries, J.A., Dean, C.T., Debernardis, F., Decamp, D., Dedu, V., Del Buono, L., Delaney, B., Dembinski, H.P., Denysenko, V., Deschamps, O., Dettori, F., Dey, B., Di Cicco, A., Di Nezza, P., Diachkov, I., Didenko, S., Dieste Maronas, L., Ding, S., Dobishuk, V., Dolmatov, A., Dong, C., Donohoe, A.M., Dordei, F., dos Reis, A.C., Douglas, L., Downes, A.G., Duan, W., Dudek, M.W., Dufour, L., Duk, V., Durante, P., Durham, J.M., Dutta, D., Dziurda, A., Dzyuba, A., Easo, S., Egede, U., Egorychev, V., Eidelman, S., Eirea Orro, C., Eisenhardt, S., Ek-In, S., Eklund, L., Ely, S., Ene, A., Epple, E., Escher, S., Eschle, J., Esen, S., Evans, T., Falcao, L.N., Fan, Y., Fang, B., Farry, S., Fazzini, D., Feo, M., Fernez, A.D., Ferrari, F., Ferreira Lopes, L., Ferreira Rodrigues, F., Ferreres Sole, S., Ferrillo, M., Ferro-Luzzi, M., Filippov, S., Fini, R.A., Fiorini, M., Firlej, M., Fischer, K.M., Fitzgerald, D.S., Fitzpatrick, C., Fiutowski, T., Fleuret, F., Fontana, M., Fontanelli, F., Forty, R., Foulds-Holt, D., Franco Lima, V., Franco Sevilla, M., Frank, M., Franzoso, E., Frau, G., Frei, C., Friday, D.A., Fu, J., Fuehring, Q., Gabriel, E., Galati, G., Galati, M.D., Gallas Torreira, A., Galli, D., Gambetta, S., Gan, Y., Gandelman, M., Gandini, P., Gao, Y., Garau, M., Garcia Martin, L.M., Garcia Moreno, P., García Pardiñas, J., Garcia Plana, B., Garcia Rosales, F.A., Garrido, L., Gaspar, C., Geertsema, R.E., Gerick, D., Gerken, L.L., Gersabeck, E., Gersabeck, M., Gershon, T., Giambastiani, L., Gibson, V., Giemza, H.K., Gilman, A.L., Giovannetti, M., Gioventù, A., Gironella Gironell, P., Giugliano, C., Giza, M.A., Gizdov, K., Gkougkousis, E.L., Gligorov, V.V., Göbel, C., Golobardes, E., Golubkov, D., Golutvin, A., Gomes, A., Gomez Fernandez, S., Goncalves Abrantes, F., Goncerz, M., Gong, G., Gorelov, I.V., Gotti, C., Grabowski, J.P., Grammatico, T., Granado Cardoso, L.A., Graugés, E., Graverini, E., Graziani, G., Grecu, A.T., Greeven, L.M., Grieser, N.A., Grillo, L., Gromov, S., Gruberg Cazon, B.R., Gu, C., Guarise, M., Guittiere, M., Günther, P.A., Gushchin, E., Guth, A., Guz, Y., Gys, T., Hadavizadeh, T., Haefeli, G., Haen, C., Haimberger, J., Haines, S.C., Halewood-leagas, T., Halvorsen, M.M., Hamilton, P.M., Hammerich, J., Han, Q., Han, X., Hansen, E.B., Hansmann-Menzemer, S., Hao, L., Harnew, N., Harrison, T., Hasse, C., Hatch, M., He, J., Heijhoff, K., Heinicke, K., Henderson, C., Henderson, R.D. L., Hennequin, A.M., Hennessy, K., Henry, L., Heuel, J., Hicheur, A., Hill, D., Hilton, M., Hollitt, S.E., Hou, R., Hou, Y., Hu, J., Hu, W., Hu, X., Huang, W., Huang, X., Hulsbergen, W., Hunter, R.J., Hushchyn, M., Hutchcroft, D., Ibis, P., Idzik, M., Ilin, D., Ilten, P., Inglessi, A., Iniukhin, A., Ishteev, A., Ivshin, K., Jacobsson, R., Jage, H., Jaimes Elles, S.J., Jakobsen, S., Jans, E., Jashal, B.K., Jawahery, A., Jevtic, V., Jiang, X., Jiang, Y., John, M., Johnson, D., Jones, C.R., Jones, T.P., Jost, B., Jurik, N., Juszczak, I., Kandybei, S., Kang, Y., Karacson, M., Karpenkov, D., Karpov, M., Kautz, J.W., Keizer, F., Keller, D.M., Kenzie, M., Ketel, T., Khanji, B., Kharisova, A., Kholodenko, S., Kirn, T., Kirsebom, V.S., Kitouni, O., Klaver, S., Kleijne, N., Klimaszewski, K., Kmiec, M.R., Koliiev, S., Kondybayeva, A., Konoplyannikov, A., Kopciewicz, P., Kopecna, R., Koppenburg, P., Korolev, M., Kostiuk, I., Kot, O., Kotriakhova, S., Kozachuk, A., Kravchenko, P., Kravchuk, L., Krawczyk, R.D., Kreps, M., Kretzschmar, S., Krokovny, P., Krupa, W., Krzemien, W., Kubat, J., Kucewicz, W., Kucharczyk, M., Kudryavtsev, V., Kunde, G.J., Kupsc, A., Lacarrere, D., Lafferty, G., Lai, A., Lampis, A., Lancierini, D., Landesa Gomez, C., Lane, J.J., Lane, R., Lanfranchi, G., Langenbruch, C., Langer, J., Lantwin, O., Latham, T., Lazzari, F., Lazzaroni, M., Le Gac, R., Lee, S.H., Lefèvre, R., Leflat, A., Legotin, S., Lenisa, P., Leroy, O., Lesiak, T., Leverington, B., Li, A., Li, H., Li, K., Li, P., Li, S., Li, T., Li, Y., Li, Z., Liang, X., Lin, C., Lin, T., Lindner, R., Lisovskyi, V., Litvinov, R., Liu, G., Liu, H., Liu, Q., Liu, S., Lobo Salvia, A., Loi, A., Lollini, R., Lomba Castro, J., Longstaff, I., Lopes, J.H., López Soliño, S., Lovell, G.H., Lu, Q., Lu, Y., Lucarelli, C., Lucchesi, D., Luchuk, S., Lucio Martinez, M., Lukashenko, V., Luo, Y., Lupato, A., Luppi, E., Lusiani, A., Lynch, K., Lyu, X.R., Ma, L., Ma, R., Maccolini, S., Machefert, F., Maciuc, F., Macko, V., Mackowiak, P., Maddrell-Mander, S., Madhan Mohan, L.R., Maevskiy, A., Maisuzenko, D., Majewski, M.W., Malczewski, J.J., Malde, S., Malecki, B., Malinin, A., Maltsev, T., Malygina, H., Manca, G., Mancinelli, G., Manuzzi, D., Manzari, C.A., Marangotto, D., Marchand, J.F., Marconi, U., Mariani, S., Marin Benito, C., Marinangeli, M., Marks, J., Marshall, A.M., Marshall, P.J., Martelli, G., Martellotti, G., Martinazzoli, L., Martinelli, M., Martinez Santos, D., Martinez Vidal, F., Massafferri, A., Materok, M., Matev, R., Mathad, A., Matiunin, V., Matteuzzi, C., Mattioli, K.R., Mauri, A., Maurice, E., Mauricio, J., Mazurek, M., McCann, M., Mcconnell, L., McGrath, T.H., McHugh, N.T., McNab, A., McNulty, R., Mead, J.V., Meadows, B., Meier, G., Melnychuk, D., Meloni, S., Merk, M., Merli, A., Meyer Garcia, L., Miao, D., Mikhasenko, M., Milanes, D.A., Millard, E., Milovanovic, M., Minard, M.N., Minotti, A., Mitchell, S.E., Mitreska, B., Mitzel, D.S., Mödden, A., Mohammed, R.A., Moise, R.D., Mokhnenko, S., Mombächer, T., Monroy, I.A., Monteil, S., Morandin, M., Morello, G., Morello, M.J., Moron, J., Morris, A.B., Morris, A.G., Mountain, R., Mu, H., Muheim, F., Mulder, M., Müller, K., Murphy, C.H., Murray, D., Murta, R., Muzzetto, P., Naik, P., Nakada, T., Nandakumar, R., Nanut, T., Nasteva, I., Needham, M., Neri, N., Neubert, S., Neufeld, N., Neustroev, P., Newcomb, R., Niel, E.M., Nieswand, S., Nikitin, N., Nolte, N.S., Normand, C., Novoa Fernandez, J., Nunez, C., Oblakowska-Mucha, A., Obraztsov, V., Oeser, T., O’Hanlon, D.P., Okamura, S., Oldeman, R., Oliva, F., Olivares, M.E., Onderwater, C.J. G., O’Neil, R.H., Otalora Goicochea, J.M., Ovsiannikova, T., Owen, P., Oyanguren, A., Ozcelik, O., Padeken, K.O., Pagare, B., Pais, P.R., Pajero, T., Palano, A., Palutan, M., Pan, Y., Panshin, G., Papanestis, A., Pappagallo, M., Pappalardo, L.L., Pappenheimer, C., Parker, W., Parkes, C., Passalacqua, B., Passaleva, G., Pastore, A., Patel, M., Patrignani, C., Pawley, C.J., Pearce, A., Pellegrino, A., Pepe Altarelli, M., Perazzini, S., Pereima, D., Pereiro Castro, A., Perret, P., Petric, M., Petridis, K., Petrolini, A., Petrov, A., Petrucci, S., Petruzzo, M., Pham, H., Philippov, A., Piandani, R., Pica, L., Piccini, M., Pietrzyk, B., Pietrzyk, G., Pili, M., Pinci, D., Pisani, F., Pizzichemi, M., Placinta, V., Plews, J., Plo Casasus, M., Polci, F., Poli Lener, M., Poliakova, M., Poluektov, A., Polukhina, N., Polyakov, I., Polycarpo, E., Ponce, S., Popov, D., Popov, S., Poslavskii, S., Prasanth, K., Promberger, L., Prouve, C., Pugatch, V., Puill, V., Punzi, G., Qi, H.R., Qian, W., Qin, N., Qu, S., Quagliani, R., Raab, N.V., Rabadan Trejo, R.I., Rachwal, B., Rademacker, J.H., Rajagopalan, R., Rama, M., Ramos Pernas, M., Rangel, M.S., Ratnikov, F., Raven, G., Rebollo De Miguel, M., Redi, F., Reiss, F., Remon Alepuz, C., Ren, Z., Renaudin, V., Resmi, P.K., Ribatti, R., Ricci, A.M., Ricciardi, S., Richardson-Slipper, M., Rinnert, K., Robbe, P., Robertson, G., Rodrigues, A.B., Rodrigues, E., Rodriguez Lopez, J.A., Rodriguez Rodriguez, E., Rollings, A., Roloff, P., Romanovskiy, V., Romero Lamas, M., Romero Vidal, A., Roth, J.D., Rotondo, M., Rudolph, M.S., Ruf, T., Ruiz Fernandez, R.A., Ruiz Vidal, J., Ryzhikov, A., Ryzka, J., Saborido Silva, J.J., Sagidova, N., Sahoo, N., Saitta, B., Salomoni, M., Sanchez Gras, C., Sanderswood, I., Santacesaria, R., Santamarina Rios, C., Santimaria, M., Santovetti, E., Saranin, D., Sarpis, G., Sarpis, M., Sarti, A., Satriano, C., Satta, A., Saur, M., Savrina, D., Sazak, H., Scantlebury Smead, L.G., Scarabotto, A., Schael, S., Scherl, S., Schiller, M., Schindler, H., Schmelling, M., Schmidt, B., Schmitt, S., Schneider, O., Schopper, A., Schubiger, M., Schulte, S., Schune, M.H., Schwemmer, R., Sciascia, B., Sciuccati, A., Sellam, S., Semennikov, A., Senghi Soares, M., Sergi, A., Serra, N., Sestini, L., Seuthe, A., Shang, Y., Shangase, D.M., Shapkin, M., Shchemerov, I., Shchutska, L., Shears, T., Shekhtman, L., Shen, Z., Sheng, S., Shevchenko, V., Shi, B., Shields, E.B., Shimizu, Y., Shmanin, E., Shupperd, J.D., Siddi, B.G., Silva Coutinho, R., Simi, G., Simone, S., Singla, M., Skidmore, N., Skuza, R., Skwarnicki, T., Slater, M.W., Smallwood, J.C., Smeaton, J.G., Smith, E., Smith, K., Smith, M., Snoch, A., Soares Lavra, L., Sokoloff, M.D., Soler, F.J. P., Solomin, A., Solovev, A., Solovyev, I., Souza De Almeida, F.L., Souza De Paula, B., Spaan, B., Spadaro Norella, E., Spiridenkov, E., Spradlin, P., Sriskaran, V., Stagni, F., Stahl, M., Stahl, S., Stanislaus, S., Stein, E.N., Steinkamp, O., Stenyakin, O., Stevens, H., Stone, S., Strekalina, D., Suljik, F., Sun, J., Sun, L., Sun, Y., Svihra, P., Swallow, P.N., Swientek, K., Szabelski, A., Szumlak, T., Szymanski, M., Tan, Y., Taneja, S., Tanner, A.R., Tat, M.D., Terentev, A., Teubert, F., Thomas, E., Thompson, D.J. 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Subjects
High Energy Physics - Experiment (hep-ex), hep-ex, FOS: Physical sciences, Nuclear Physics - Experiment, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), nucl-ex, Nuclear Experiment, Particle Physics - Experiment, High Energy Physics - Experiment
Abstract

The cross-sections of coherent $J/\psi$ and $\psi(\mathrm{2S})$ production in ultra-peripheral PbPb collisions at a nucleon-nucleon centre-of-mass energy of $5.02\,\mathrm{TeV}$ are measured using a data sample corresponding to an integrated luminosity of $228\pm10\,\mathrm{\mu b}^{-1}$, collected by the LHCb experiment in 2018. The differential cross-sections are measured separately as a function of transverse momentum and rapidity in the nucleus-nucleus centre-of-mass frame for $J/\psi$ and $\psi(\mathrm{2S})$ mesons. The integrated cross-sections are measured to be $\sigma^\mathrm{coh}_{J/\psi} = 5.965 \pm 0.059 \pm 0.232 \pm 0.262\,\mathrm{mb}$ and $\sigma^\mathrm{coh}_{\psi(\mathrm{2S})} = 0.923 \pm 0.086 \pm 0.028 \pm 0.040\,\mathrm{mb}$, where the first listed uncertainty is statistical, the second systematic and the third due to the luminosity determination. The cross-section ratio is measured to be $\sigma^\mathrm{coh}_{\psi(\mathrm{2S})}/\sigma^\mathrm{coh}_{J/\psi} = 0.155 \pm 0.014 \pm 0.003$, where the first uncertainty is statistical and the second is systematic. These results are compatible with theoretical predictions., Comment: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-012.html (LHCb public pages)

Published
2022

49. Measurement of $\tau_{L}$ using the $B_{s}^{0} \to J/\psi \eta$ decay mode

Author

Aaij, R., Abdelmotteleb, A.S. W., Beteta, C.Abellan, Abudinén, F., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., Agapopoulou, C., Aidala, C.A., Aiola, S., Ajaltouni, Z., Akar, S., Akiba, K., Albrecht, J., Alessio, F., Alexander, M., Albero, A.Alfonso, Aliouche, Z., Cartelle, P.Alvarez, Amalric, R., Amato, S., Amey, J.L., Amhis, Y., An, L., Anderlini, L., Andersson, M., Andreianov, A., Andreotti, M., Andreou, D., Ao, D., Archilli, F., Artamonov, A., Artuso, M., Aslanides, E., Atzeni, M., Audurier, B., Bachmann, S., Bachmayer, M., Back, J.J., Bailly-reyre, A., Rodriguez, P.Baladron, Balagura, V., Baldini, W., de Souza Leite, J.Baptista, Barbetti, M., Barlow, R.J., Barsuk, S., Barter, W., Bartolini, M., Baryshnikov, F., Basels, J.M., Bassi, G., Batsukh, B., Battig, A., Bay, A., Beck, A., Becker, M., Bedeschi, F., Bediaga, I.B., Beiter, A., Belavin, V., Belin, S., Bellee, V., Belous, K., Belov, I., Belyaev, I., Bencivenni, G., Ben-Haim, E., Berezhnoy, A., Bernet, R., Berninghoff, D., Bernstein, H.C., Bertella, C., Bertolin, A., Betancourt, C., Betti, F., Bezshyiko, Ia., Bhasin, S., Bhom, J., Bian, L., Bieker, M.S., Biesuz, N.V., Bifani, S., Billoir, P., Biolchini, A., Birch, M., Bishop, F.C. R., Bitadze, A., Bizzeti, A., Blago, M.P., Blake, T., Blanc, F., Blusk, S., Bobulska, D., Boelhauve, J.A., Garcia, O.Boente, Boettcher, T., Boldyrev, A., Bolognani, C.S., Bondar, N., Borghi, S., Borsato, M., Borsuk, J.T., Bouchiba, S.A., Bowcock, T.J. V., Boyer, A., Bozzi, C., Bradley, M.J., Braun, S., Rodriguez, A.Brea, Brodzicka, J., Gonzalo, A.Brossa, Brundu, D., Buonaura, A., Buonincontri, L., Burke, A.T., Burr, C., Bursche, A., Butkevich, A., Butter, J.S., Buytaert, J., Byczynski, W., Cadeddu, S., Cai, H., Calabrese, R., Calefice, L., Cali, S., Calladine, R., Calvi, M., Gomez, M.Calvo, Magalhaes, P.Camargo, Campana, P., Campora Perez, D.H., Campoverde Quezada, A.F., Capelli, S., Capriotti, L., Carbone, A., Carboni, G., Cardinale, R., Cardini, A., Carli, I., Carniti, P., Carus, L., Vidal, A.Casais, Caspary, R., Casse, G., Cattaneo, M., Cavallero, G., Cavallini, V., Celani, S., Cerasoli, J., Cervenkov, D., Chadwick, A.J., Chapman, M.G., Charles, M., Charpentier, Ph., Chavez Barajas, C.A., Chefdeville, M., Chen, C., Chen, S., Chernov, A., Chernyshenko, S., Chobanova, V., Cholak, S., Chrzaszcz, M., Chubykin, A., Chulikov, V., Ciambrone, P., Cicala, M.F., Vidal, X.Cid, Ciezarek, G., Ciullo, G., Clarke, P.E. L., Clemencic, M., Cliff, H.V., Closier, J., Cobbledick, J.L., Coco, V., Coelho, J.A. B., Cogan, J., Cogneras, E., Cojocariu, L., Collins, P., Colombo, T., Congedo, L., Contu, A., Cooke, N., Coombs, G., Corredoira, I., Corti, G., Couturier, B., Craik, D.C., Crkovská, J., Torres, M.Cruz, Currie, R., Da Silva, C.L., Dadabaev, S., Dai, L., Dall’Occo, E., Dalseno, J., D’Ambrosio, C., Danilina, A., d’Argent, P., Davies, J.E., Davis, A., De Aguiar Francisco, O., de Boer, J., De Bruyn, K., De Capua, S., De Cian, M., De Freitas Carneiro Da Graca, U., De Lucia, E., De Miranda, J.M., De Paula, L., De Serio, M., De Simone, D., De Simone, P., De Vellis, F., de Vries, J.A., Dean, C.T., Debernardis, F., Decamp, D., Dedu, V., Del Buono, L., Delaney, B., Dembinski, H.P., Denysenko, V., Deschamps, O., Dettori, F., Dey, B., Cicco, A.Di, Nezza, P.Di, Diachkov, I., Didenko, S., Maronas, L.Dieste, Ding, S., Dobishuk, V., Dolmatov, A., Dong, C., Donohoe, A.M., Dordei, F., dos Reis, A.C., Douglas, L., Downes, A.G., Dudek, M.W., Dufour, L., Duk, V., Durante, P., Durham, J.M., Dutta, D., Dziurda, A., Dzyuba, A., Easo, S., Egede, U., Egorychev, V., Eidelman, S., Eisenhardt, S., Ek-In, S., Eklund, L., Ely, S., Ene, A., Epple, E., Escher, S., Eschle, J., Esen, S., Evans, T., Falcao, L.N., Fan, Y., Fang, B., Farry, S., Fazzini, D., Feo, M., Fernez, A.D., Ferrari, F., Lopes, L.Ferreira, Rodrigues, F.Ferreira, Sole, S.Ferreres, Ferrillo, M., Ferro-Luzzi, M., Filippov, S., Fini, R.A., Fiorini, M., Firlej, M., Fischer, K.M., Fitzgerald, D.S., Fitzpatrick, C., Fiutowski, T., Fleuret, F., Fontana, M., Fontanelli, F., Forty, R., Foulds-Holt, D., Lima, V.Franco, Sevilla, M.Franco, Frank, M., Franzoso, E., Frau, G., Frei, C., Friday, D.A., Fu, J., Fuehring, Q., Gabriel, E., Galati, G., Galati, M.D., Torreira, A.Gallas, Galli, D., Gambetta, S., Gan, Y., Gandelman, M., Gandini, P., Gao, Y., Garau, M., Garcia Martin, L.M., Moreno, P.Garcia, Pardiñas, J.García, Plana, B.Garcia, Garcia Rosales, F.A., Garrido, L., Gaspar, C., Geertsema, R.E., Gerick, D., Gerken, L.L., Gersabeck, E., Gersabeck, M., Gershon, T., Giambastiani, L., Gibson, V., Giemza, H.K., Gilman, A.L., Giovannetti, M., Gioventù, A., Gironell, P.Gironella, Giugliano, C., Giza, M.A., Gizdov, K., Gkougkousis, E.L., Gligorov, V.V., Göbel, C., Golobardes, E., Golubkov, D., Golutvin, A., Gomes, A., Fernandez, S.Gomez, Abrantes, F.Goncalves, Goncerz, M., Gong, G., Gorelov, I.V., Gotti, C., Grabowski, J.P., Grammatico, T., Granado Cardoso, L.A., Graugés, E., Graverini, E., Graziani, G., Grecu, A.T., Greeven, L.M., Grieser, N.A., Grillo, L., Gromov, S., Gruberg Cazon, B.R., Gu, C., Guarise, M., Guittiere, M., Günther, P.A., Gushchin, E., Guth, A., Guz, Y., Gys, T., Hadavizadeh, T., Haefeli, G., Haen, C., Haimberger, J., Haines, S.C., Halewood-leagas, T., Halvorsen, M.M., Hamilton, P.M., Hammerich, J., Han, Q., Han, X., Hansen, E.B., Hansmann-Menzemer, S., Hao, L., Harnew, N., Harrison, T., Hasse, C., Hatch, M., He, J., Heijhoff, K., Heinicke, K., Henderson, R.D. L., Hennequin, A.M., Hennessy, K., Henry, L., Heuel, J., Hicheur, A., Hill, D., Hilton, M., Hollitt, S.E., Hou, R., Hou, Y., Hu, J., Hu, W., Hu, X., Huang, W., Huang, X., Hulsbergen, W., Hunter, R.J., Hushchyn, M., Hutchcroft, D., Ibis, P., Idzik, M., Ilin, D., Ilten, P., Inglessi, A., Iniukhin, A., Ishteev, A., Ivshin, K., Jacobsson, R., Jage, H., Jaimes Elles, S.J., Jakobsen, S., Jans, E., Jashal, B.K., Jawahery, A., Jevtic, V., Jiang, X., Jiang, Y., John, M., Johnson, D., Jones, C.R., Jones, T.P., Jost, B., Jurik, N., Juszczak, I., Kandybei, S., Kang, Y., Karacson, M., Karpenkov, D., Karpov, M., Kautz, J.W., Keizer, F., Keller, D.M., Kenzie, M., Ketel, T., Khanji, B., Kharisova, A., Kholodenko, S., Kirn, T., Kirsebom, V.S., Kitouni, O., Klaver, S., Kleijne, N., Klimaszewski, K., Kmiec, M.R., Koliiev, S., Kondybayeva, A., Konoplyannikov, A., Kopciewicz, P., Kopecna, R., Koppenburg, P., Korolev, M., Kostiuk, I., Kot, O., Kotriakhova, S., Kozachuk, A., Kravchenko, P., Kravchuk, L., Krawczyk, R.D., Kreps, M., Kretzschmar, S., Krokovny, P., Krupa, W., Krzemien, W., Kubat, J., Kucewicz, W., Kucharczyk, M., Kudryavtsev, V., Kunde, G.J., Lacarrere, D., Lafferty, G., Lai, A., Lampis, A., Lancierini, D., Lane, J.J., Lane, R., Lanfranchi, G., Langenbruch, C., Langer, J., Lantwin, O., Latham, T., Lazzari, F., Lazzaroni, M., Gac, R.Le, Lee, S.H., Lefèvre, R., Leflat, A., Legotin, S., Lenisa, P., Leroy, O., Lesiak, T., Leverington, B., Li, H., Li, K., Li, P., Li, S., Li, T., Li, Y., Li, Z., Liang, X., Lin, C., Lin, T., Lindner, R., Lisovskyi, V., Litvinov, R., Liu, G., Liu, H., Liu, Q., Liu, S., Salvia, A.Lobo, Loi, A., Lollini, R., Castro, J.Lomba, Longstaff, I., Lopes, J.H., Soliño, S.López, Lovell, G.H., Lu, Y., Lucarelli, C., Lucchesi, D., Luchuk, S., Martinez, M.Lucio, Lukashenko, V., Luo, Y., Lupato, A., Luppi, E., Lusiani, A., Lynch, K., Lyu, X.R., Ma, L., Ma, R., Maccolini, S., Machefert, F., Maciuc, F., Mackay, I., Macko, V., Mackowiak, P., Maddrell-Mander, S., Madhan Mohan, L.R., Maevskiy, A., Maisuzenko, D., Majewski, M.W., Malczewski, J.J., Malde, S., Malecki, B., Malinin, A., Maltsev, T., Malygina, H., Manca, G., Mancinelli, G., Manuzzi, D., Manzari, C.A., Marangotto, D., Marchand, J.F., Marconi, U., Mariani, S., Benito, C.Marin, Marinangeli, M., Marks, J., Marshall, A.M., Marshall, P.J., Martelli, G., Martellotti, G., Martinazzoli, L., Martinelli, M., Santos, D.Martinez, Vidal, F.Martinez, Massafferri, A., Materok, M., Matev, R., Mathad, A., Matiunin, V., Matteuzzi, C., Mattioli, K.R., Mauri, A., Maurice, E., Mauricio, J., Mazurek, M., McCann, M., Mcconnell, L., McGrath, T.H., McHugh, N.T., McNab, A., McNulty, R., Mead, J.V., Meadows, B., Meier, G., Melnychuk, D., Meloni, S., Merk, M., Merli, A., Garcia, L.Meyer, Miao, D., Mikhasenko, M., Milanes, D.A., Millard, E., Milovanovic, M., Minard, M.N., Minotti, A., Mitchell, S.E., Mitreska, B., Mitzel, D.S., Mödden, A., Mohammed, R.A., Moise, R.D., Mokhnenko, S., Mombächer, T., Monroy, I.A., Monteil, S., Morandin, M., Morello, G., Morello, M.J., Moron, J., Morris, A.B., Morris, A.G., Mountain, R., Mu, H., Muheim, F., Mulder, M., Müller, K., Murphy, C.H., Murray, D., Murta, R., Muzzetto, P., Naik, P., Nakada, T., Nandakumar, R., Nanut, T., Nasteva, I., Needham, M., Neri, N., Neubert, S., Neufeld, N., Neustroev, P., Newcombe, R., Niel, E.M., Nieswand, S., Nikitin, N., Nolte, N.S., Normand, C., Nunez, C., Oblakowska-Mucha, A., Obraztsov, V., Oeser, T., O’Hanlon, D.P., Okamura, S., Oldeman, R., Oliva, F., Olivares, M.E., Onderwater, C.J. 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Subjects
hep-ex, Particle Physics - Experiment, High Energy Physics - Experiment
Abstract

Using a proton-proton collision data sample collected by the LHCb detector and corresponding to an integrated luminosity of 5.7 $\text{fb}^{-1}$, the lifetime of the $B_{s}^{0}$ mass eigenstate, $\tau_{L}$, is measured using $B_{s}^{0} \to J/\psi \eta$ decay mode to be $\tau_{L}$ = 1.445 $\pm$ 0.016(stat) $\pm$ 0.008(syst) ps. A combination of this result with a previous LHCb analysis using an independent dataset corresponding to 3 $\text{fb}^{-1}$ of integrated luminosity gives $\tau_{L}$ = 1.452 $\pm$ 0.014 $\pm$ 0.007 $\pm$ 0.002 ps, where the first uncertainty is statistical, the second due to the uncorrelated part of the systematic uncertainty and the third due to the correlated part of the systematic uncertainty., Comment: All figures and tables, along with any supplementary material and additional information, are available at https://lhcbproject.web.cern.ch/Publications/p/LHCb-PAPER-2022-010.html (LHCb public pages). arXiv admin note: text overlap with arXiv:1607.06314

Published
2022

50. Angular Analysis of D⁰ → π⁺ π⁻ μ⁺ μ⁻ and D⁰ → K⁺ K⁻ μ⁺ μ⁻ Decays and Search for CP Violation [Angular Analysis of D0 -> x plus x-mu plus mu- and D0 -> K plus K-mu plus mu- Decays and Search for CP Violation]

Author

Aaij, R., Abdelmotteleb, A.S.W., Abellán Beteta, C., Abudinén, F., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., Agapopoulou, C., Aidala, C.A., Aiola, S., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Aliouche, Z., Alkhazov, G., Alvarez Cartelle, P., Alves, A.A., Amato, S., Amey, J.L., Amhis, Y., An, L., Anderlini, L., Andersson, N., Andreianov, A., Andreotti, M., Archilli, F., Artamonov, A., Artuso, M., Arzymatov, K., Aslanides, E., Atzeni, M., Audurier, B., Bachmann, S., Bachmayer, M., Back, J.J., Baladron Rodriguez, P., Balagura, V., Baldini, W., Baptista Leite, J., Barbetti, M., Barlow, R.J., Barsuk, S., Barter, W., Bartolini, M., Baryshnikov, F., Basels, J.M., Bashir, S., Bassi, G., Batsukh, B., Battig, A., Bay, A., Beck, A., Becker, M., Bedeschi, F., Bediaga, I., Beiter, A., Belavin, V., Belin, S., Bellee, V., Belous, K., Belov, I., Belyaev, I., Bencivenni, G., Ben-Haim, E., Berezhnoy, A., Bernet, R., Berninghoff, D., Bernstein, H.C., Bertella, C., Bertolin, A., Betancourt, C., Betti, F., Bezshyiko, I., Bhasin, S., Bhom, J., Bian, L., Bieker, M.S., Biesuz, N.V., Bifani, S., Billoir, P., Biolchini, A., Birch, M., Bishop, F.C.R., Bitadze, A., Bizzeti, A., Bjørn, M., Blago, M.P., Blake, T., Blanc, F., Blusk, S., Bobulska, D., Boelhauve, J.A., Boente Garcia, O., Boettcher, T., Boldyrev, A., Bondar, A., Bondar, N., Borghi, S., Borisyak, M., Borsato, M., Borsuk, J.T., Bouchiba, S.A., Bowcock, T.J.V., Boyer, A., Bozzi, C., Bradley, M.J., Braun, S., Brea Rodriguez, A., Brodzicka, J., Brossa Gonzalo, A., Brundu, D., Buonaura, A., Buonincontri, L., Burke, A.T., Burr, C., Bursche, A., Butkevich, A., Butter, J.S., Buytaert, J., Byczynski, W., Cadeddu, S., Cai, H., Calabrese, R., Calefice, L., Cali, S., Calladine, R., Calvi, M., Calvo Gomez, M., Camargo Magalhaes, P., Campana, P., Campoverde Quezada, A.F., Capelli, S., Capriotti, L., Carbone, A., Carboni, G., Cardinale, R., Cardini, A., Carli, I., Carniti, P., Carus, L., Carvalho Akiba, K., Casais Vidal, A., Caspary, R., Casse, G., Cattaneo, M., Cavallero, G., Celani, S., Cerasoli, J., Cervenkov, D., Chadwick, A.J., Chapman, M.G., Charles, M., Charpentier, P., Chatzikonstantinidis, G., Chavez Barajas, C.A., Chefdeville, M., Chen, C., Chen, S., Chernov, A., Chobanova, V., Cholak, S., Chrzaszcz, M., Chubykin, A., Chulikov, V., Ciambrone, P., Cicala, M.F., Cid Vidal, X., Ciezarek, G., Clarke, P.E.L., Clemencic, M., Cliff, H.V., Closier, J., Cobbledick, J.L., Coco, V., Coelho, J.A.B., Cogan, J., Cogneras, E., Cojocariu, L., Collins, P., Colombo, T., Congedo, L., Contu, A., Cooke, N., Coombs, G., Corredoira, I., Corti, G., Costa Sobral, C.M., Couturier, B., Craik, D.C., Crkovská, J., Cruz Torres, M., Currie, R., Da Silva, C.L., Dadabaev, S., Dai, L., Dall'Occo, E., Dalseno, J., D'Ambrosio, C., Danilina, A., D'Argent, P., Dashkina, A., Davies, J.E., Davis, A., De Aguiar Francisco, O., De Bruyn, K., De Capua, S., De Cian, M., De Lucia, E., De Miranda, J.M., 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Subjects
Settore FIS/01 - Fisica Sperimentale
Published
2022

Catalog

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