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131 results on '"flavor physics"'

1. Updated search for Bc+ decays to two charm mesons

Author: Aaij, R, Abdelmotteleb, ASW, Abellán Beteta, C, Ackernley, T, Adeva, B, Adinolfi, M, Afsharnia, H, Agapopoulou, C, Aidala, CA, Aiola, S, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Aliouche, Z, Alkhazov, G, Alvarez Cartelle, P, Amato, S, Amey, JL, Amhis, Y, An, L, Anderlini, L, Andreianov, A, Andreotti, M, Archilli, F, Artamonov, A, Artuso, M, Arzymatov, K, Aslanides, E, Atzeni, M, Audurier, B, Bachmann, S, Bachmayer, M, Back, JJ, Baladron Rodriguez, P, Balagura, V, Baldini, W, Baptista Leite, J, Barbetti, M, Barlow, RJ, Barsuk, S, Barter, W, Bartolini, M, Baryshnikov, F, Basels, JM, 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, HC, Bertella, C, Bertolin, A, Betancourt, C, Betti, F, Bezshyiko, I, Bhasin, S, Bhom, J, Bian, L, Bieker, MS, Bifani, S, Billoir, P, Birch, M, Bishop, FCR, Bitadze, A, Bizzeti, A, Bjørn, M, Blago, MP, Blake, T, Blanc, F, Blusk, S, Bobulska, D, Boelhauve, JA, Boente Garcia, O, Boettcher, T, Boldyrev, A, Bondar, A, Bondar, N, Borghi, S, Borisyak, M, Borsato, M, Borsuk, JT, Alvarez Cartelle, Paula [0000-0003-1652-2834], and Apollo - University of Cambridge Repository
Subjects: Flavor physics, Hadron-Hadron scattering (experiments), High Energy Physics::Phenomenology, High Energy Physics::Experiment, Branching fraction, Nuclear Experiment, B physics
Abstract: A data set corresponding to an integrated luminosity of $9 \text{fb}^{-1}$ of proton-proton collisions collected by the LHCb experiment has been analysed to search for $B_c^+ \to D^{(*)+}_{(s)} \overset{\scriptstyle (-)}{D}{}^{(*)0}$ decays. The decays are fully or partially reconstructed, where one or two missing neutral pions or photons from the decay of an excited charm meson are allowed. Upper limits for the branching fractions, normalised to $B^+$ decays to final states with similar topologies, are obtained for fourteen $B_c^+$ decay modes. For the decay $B_c^+ \to D_s^+ {\overline{D}}^0$, an excess with a significance of 3.4 standard deviations is found.
Published: 2022
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2. Search for the doubly charmed baryon Ξcc+ in the Ξc+π−π+ final state

Author: Aaij, R, Abdelmotteleb, ASW, Abellán Beteta, C, Ackernley, T, Adeva, B, Adinolfi, M, Afsharnia, H, Agapopoulou, C, Aidala, CA, Aiola, S, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Aliouche, Z, Alkhazov, G, Alvarez Cartelle, P, Amato, S, Amey, JL, Amhis, Y, An, L, Anderlini, L, Andreianov, A, Andreotti, M, Archilli, F, Artamonov, A, Artuso, M, Arzymatov, K, Aslanides, E, Atzeni, M, Audurier, B, Bachmann, S, Bachmayer, M, Back, JJ, Baladron Rodriguez, P, Balagura, V, Baldini, W, Baptista Leite, J, Barbetti, M, Barlow, RJ, Barsuk, S, Barter, W, Bartolini, M, Baryshnikov, F, Basels, JM, 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, HC, Bertella, C, Bertolin, A, Betancourt, C, Betti, F, Bezshyiko, I, Bhasin, S, Bhom, J, Bian, L, Bieker, MS, Bifani, S, Billoir, P, Birch, M, Bishop, FCR, Bitadze, A, Bizzeti, A, Bjørn, M, Blago, MP, Blake, T, Blanc, F, Blusk, S, Bobulska, D, Boelhauve, JA, Boente Garcia, O, Boettcher, T, Boldyrev, A, Bondar, A, Bondar, N, Borghi, S, Borisyak, M, Borsato, M, Borsuk, JT, Alvarez Cartelle, Paula [0000-0003-1652-2834], and Apollo - University of Cambridge Repository
Subjects: Flavor physics, Hadron-Hadron scattering (experiments), Branching fraction, QCD, Charm physics
Abstract: A search for the doubly charmed baryon $\it{\Xi}_{cc}^{+}$ is performed in the $\it{\Xi}_{c}^{+} \pi^{-} \pi^{+}$ invariant-mass spectrum, where the $\it{\Xi}_{c}^{+}$ baryon is reconstructed in the $p K^{-} \pi^{+}$ final state. The study uses proton-proton collision data collected with the LHCb detector at a centre-of-mass energy of 13$\mathrm{\,Te\kern -0.1em V}$, corresponding to a total integrated luminosity of 5.4$\,\mathrm{fb}^{-1}$. No significant signal is observed in the invariant-mass range of 3.4$-$3.8$\mathrm{\,Ge\kern -0.1em V}/c^2$. Upper limits are set on the ratio of branching fractions multiplied by the production cross-section with respect to the $\it{\Xi}_{cc}^{++} \rightarrow (\it{\Xi}_{c}^{+} \rightarrow p K^{-} \pi^{+}) \pi^{+}$ decay for different $\it{\Xi}_{cc}^{+}$ mass and lifetime hypotheses in the rapidity range from 2.0 to 4.5 and the transverse momentum range from 2.5 to 25$\mathrm{\,Ge\kern -0.1em V}/c$. The results from this search are combined with a previously published search for the $\it{\Xi}_{cc}^{+} \rightarrow \it{\Lambda}_{c}^{+} K^{-} \pi^{+}$ decay mode, yielding a maximum local significance of 4.0 standard deviations around the mass of 3620$\mathrm{\,Me\kern -0.1em V}/c^2$, including systematic uncertainties. Taking into account the look-elsewhere effect in the 3.5$-$3.7$\mathrm{\,Ge\kern -0.1em V}/c^2$ mass window, the combined global significance is 2.9 standard deviations including systematic uncertainties.
Published: 2022
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3. Study of Bc+ decays to charmonia and three light hadrons

Author: Aaij, R, Abdelmotteleb, ASW, Abellán Beteta, C, Abudinen Gallego, FJ, Ackernley, T, Adeva, B, Adinolfi, M, Afsharnia, H, Agapopoulou, C, Aidala, CA, Aiola, S, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Aliouche, Z, Alkhazov, G, Alvarez Cartelle, Paula, Amato, S, Amey, JL, Amhis, Y, An, L, Anderlini, L, Andreianov, A, Andreotti, M, Archilli, F, Artamonov, A, Artuso, M, Arzymatov, K, Aslanides, E, Atzeni, M, Audurier, B, Bachmann, S, Bachmayer, M, Back, JJ, Baladron Rodriguez, P, Balagura, V, Baldini, W, Baptista Leite, J, Barbetti, M, Barlow, RJ, Barsuk, S, Barter, W, Bartolini, M, Baryshnikov, F, Basels, JM, 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, HC, Bertella, C, Bertolin, A, Betancourt, C, Betti, F, Bezshyiko, I, Bhasin, S, Bhom, J, Bian, L, Bieker, MS, Bifani, S, Billoir, P, Biolchini, A, Birch, M, Bishop, FCR, Bitadze, A, Bizzeti, A, Bjørn, M, Blago, MP, Blake, T, Blanc, F, Blusk, S, Bobulska, D, Boelhauve, JA, Boente Garcia, O, Boettcher, T, Boldyrev, A, Bondar, A, Bondar, N, Borghi, S, Borisyak, M, Alvarez Cartelle, Paula [0000-0003-1652-2834], and Apollo - University of Cambridge Repository
Subjects: Flavor physics, Regular Article - Experimental Physics, Hadron-Hadron scattering (experiments), Nuclear Theory, High Energy Physics::Phenomenology, High Energy Physics::Experiment, Branching fraction, Nuclear Experiment, B physics
Abstract: Using proton-proton collision data, corresponding to an integrated luminosity of $9fb^{-1}$ collected with the LHCb detector, seven decay modes of the $B_c^+$ meson into a $J/\psi$ or $\psi(2S)$ meson and three charged hadrons, kaons or pions, are studied. The decays $B_c^+\rightarrow ( \psi(2S) \rightarrow J/\psi \pi^+ \pi^-)\pi^+ $, $B_c^+\rightarrow \psi(2S)\pi^+\pi^+\pi^-$, $B_c^+\rightarrow J/\psi K^+\pi^+\pi^-$ and $B_c^+\rightarrow K^+K^+K^-$ are observed for the first time, and evidence for the $B_c^+\rightarrow \psi(2S)K^+K^-\pi^+$ decay is found, where $J/\psi$ and $\psi(2S)$ mesons are reconstructed in their dimuon decay modes. The ratios of branching fractions between the different $B_c^+$ decays are reported as well as the fractions of the decays proceeding via intermediate resonances. The results largely support the factorisation approach used for a theoretical description of the studied decays.
Published: 2022
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4. Search for the radiative Ξb− → Ξ − γ decay

Author: Aaij, R, Abdelmotteleb, ASW, Abellán Beteta, C, Ackernley, T, Adeva, B, Adinolfi, M, Afsharnia, H, Aidala, CA, Aiola, S, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Aliouche, Z, Alkhazov, G, Alvarez Cartelle, Paula, Amato, S, Amey, JL, Amhis, Y, An, L, Anderlini, L, Andreianov, A, Andreotti, M, Archilli, F, Artamonov, A, Artuso, M, Arzymatov, K, Aslanides, E, Atzeni, M, Audurier, B, Bachmann, S, Bachmayer, M, Back, JJ, Baladron Rodriguez, P, Balagura, V, Baldini, W, Baptista Leite, J, Barlow, RJ, Barsuk, S, Barter, W, Bartolini, M, Baryshnikov, F, Basels, JM, 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, HC, Bertella, C, Bertolin, A, Betancourt, C, Betti, F, Bezshyiko, I, Bhasin, S, Bhom, J, Bian, L, Bieker, MS, Bifani, S, Billoir, P, Birch, M, Bishop, FCR, Bitadze, A, Bizzeti, A, Bjørn, M, Blago, MP, Blake, T, Blanc, F, Blusk, S, Bobulska, D, Boelhauve, JA, Boente Garcia, O, Boettcher, T, Boldyrev, A, Bondar, A, Bondar, N, Borghi, S, Borisyak, M, Borsato, M, Borsuk, JT, Bouchiba, SA, Bowcock, TJV, Alvarez Cartelle, Paula [0000-0003-1652-2834], and Apollo - University of Cambridge Repository
Subjects: Flavor physics, Rare decay, Regular Article - Experimental Physics, Hadron-Hadron scattering (experiments), Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Experiment, B physics
Abstract: The first search for the rare radiative decay $\Xi_b^- \to \Xi^- \gamma$ is performed using data collected by the LHCb experiment in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5.4 fb$^{-1}$. The $\Xi_b- \to \Xi^- J/\psi$ channel is used as normalization. No $\Xi_b^- \to \Xi^- \gamma$ signal is found and an upper limit of $\mathcal{B}(\Xi_b^- \to \Xi^- \gamma) < 1.3 \times 10^{-4}$ at 95% confidence level is obtained.
Published: 2022
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5. Search for the doubly charmed baryon �� cc + in the �� c + �� + final state

Author: Aaij, R., Abdelmotteleb, A. S. W., Abell��n Beteta, C., 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., Amato, S., Amey, J. L., Amhis, Y., An, L., Anderlini, L., 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, Ia., Bhasin, S., Bhom, J., Bian, L., Bieker, M. S., Bifani, S., Billoir, P., Birch, M., Bishop, F. C. R., Bitadze, A., Bizzeti, A., Bj��rn, 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., Brodski, M., 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., Calero Diaz, 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., Casse, G., Cattaneo, M., Cavallero, G., Celani, S., Cerasoli, J., Cervenkov, D., Chadwick, A. J., Chapman, M. G., Charles, M., Charpentier, Ph., 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., Crkovsk��, 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 Bruyn, K., De Capua, S., De Cian, M., De Miranda, J. M., De Paula, L., De Serio, M., De Simone, D., De Simone, P., De Vries, J. A., Dean, C. T., Decamp, D., Dedu, V., Del Buono, L., Delaney, B., Dembinski, H.-P., Dendek, A., Denysenko, V., Derkach, D., Deschamps, O., Desse, F., Dettori, F., Dey, B., Di Cicco, A., Di Nezza, P., Didenko, S., Dieste Maronas, L., Dijkstra, H., Dobishuk, V., Dong, C., Donohoe, A. M., Dordei, F., Dos Reis, A. C., Douglas, L., Dovbnya, A., 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., Falabella, A., Fan, J., Fan, Y., Fang, B., Farry, S., Fazzini, D., F��o, 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., Fkiaras, A., 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., Gaintseva, T., Gallas Torreira, A., Galli, D., Gambetta, S., Gan, Y., Gandelman, M., Gandini, P., Gao, Y., Garau, M., Garcia Martin, L. M., Garcia Moreno, P., Garc��a Pardi��as, 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., Ghez, Ph., Giambastiani, L., Gibson, V., Giemza, H. K., Gilman, A. L., Giovannetti, M., Giovent��, A., Gironella Gironell, P., Giubega, L., Giugliano, C., Gizdov, K., Gkougkousis, E. L., Gligorov, V. V., G��bel, C., Golobardes, E., Golubkov, D., Golutvin, A., Gomes, A., Gomez Fernandez, S., Goncalves Abrantes, F., Goncerz, M., Gong, G., Gorbounov, P., Gorelov, I. V., Gotti, C., Govorkova, E., Grabowski, J. P., Grammatico, T., Granado Cardoso, L. A., Graug��s, E., Graverini, E., Graziani, G., Grecu, A., Greeven, L. M., Grieser, N. A., Grillo, L., Gromov, S., Gruberg Cazon, B. R., Gu, C., Guarise, M., G��nther, P. A., Gushchin, E., Guth, A., Guz, Y., Gys, T., Hadavizadeh, T., Haefeli, G., Haen, C., Haimberger, J., Halewood-Leagas, T., Hamilton, P. M., Hammerich, J. P., Han, Q., Han, X., Hancock, T. H., Hansmann-Menzemer, S., Harnew, N., Harrison, T., Hasse, C., Hatch, M., He, J., Hecker, M., Heijhoff, K., Heinicke, K., Hennequin, A. M., Hennessy, K., Henry, L., Heuel, J., Hicheur, A., Hill, D., Hilton, M., Hollitt, S. E., 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., Jakobsen, S., Jans, E., Jashal, B. K., Jawahery, A., Jevtic, V., Jiang, F., John, M., Johnson, D., Jones, C. R., Jones, T. P., Jost, B., Jurik, N., Kalavan Kadavath, S. H., Kandybei, S., Kang, Y., Karacson, M., Karpov, M., Keizer, F., 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., Kravchenko, P., Kravchuk, L., Krawczyk, R. D., Kreps, M., Kress, F., Kretzschmar, S., Krokovny, P., Krupa, W., Krzemien, W., 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., Le Gac, R., Lee, S. H., Lef��vre, 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, S., Lobo Salvia, A., Loi, A., Lomba Castro, J., Longstaff, I., Lopes, J. H., Lopez Solino, 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., Ma, L., Ma, R., Maccolini, S., Machefert, F., Maciuc, F., Macko, V., Mackowiak, P., Maddrell-Mander, S., Madejczyk, O., Madhan Mohan, L. R., Maev, O., 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., Marangotto, D., Maratas, J., Marchand, J. F., Marconi, U., Mariani, S., Marin Benito, C., Marinangeli, M., Marks, J., Marshall, A. M., Marshall, P. J., Martellotti, G., Martinazzoli, L., Martinelli, M., Martinez Santos, D., Martinez Vidal, F., Massafferri, A., Materok, M., Matev, R., Mathad, A., Mathe, Z., 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., Meinert, N., 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., Minzoni, L., Mitchell, S. E., Mitreska, B., Mitzel, D. S., M��dden, A., Mohammed, R. A., Moise, R. D., Momb��cher, 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., M��ller, D., M��ller, K., Murphy, C. H., Murray, D., Muzzetto, P., Naik, P., Nakada, T., Nandakumar, R., Nanut, T., Nasteva, I., Needham, M., Neri, I., Neri, N., Neubert, S., Neufeld, N., Newcombe, R., Nguyen, T. D., Nguyen-Mau, C., Ni, H., 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., Olivares, M. E., Onderwater, C. J. G., O��Neil, R. H., Ossowska, A., Otalora Goicochea, J. M., Ovsiannikova, T., Owen, P., Oyanguren, A., 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, T. T. 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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., 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., Shevchenko, V., Shields, E. B., Shimizu, Y., Shmanin, E., Shupperd, J. D., Siddi, B. G., Silva Coutinho, R., Simi, G., Simone, S., Skidmore, N., Skwarnicki, T., Slater, M. W., Slazyk, I., Smallwood, J. C., Smeaton, J. 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Subjects: Flavor physics, Regular Article - Experimental Physics, Hadron-Hadron scattering (experiments), High Energy Physics::Experiment, Branching fraction, Nuclear Experiment, QCD, Charm physics
Abstract: A search for the doubly charmed baryon ��cc+ is performed in the ��c+��+ invariant-mass spectrum, where the ��c+ baryon is reconstructed in the pK��+ final state. The study uses proton-proton collision data collected with the LHCb detector at a centre- of-mass energy of 13 TeV, corresponding to a total integrated luminosity of 5.4 fb��1. No significant signal is observed in the invariant-mass range of 3.4��3.8 GeV/c2. Upper limits are set on the ratio of branching fractions multiplied by the production cross-section with respect to the ��cc++�� (��c+�� pK��+)��+ decay for different ��cc+ mass and lifetime hypotheses in the rapidity range from 2.0 to 4.5 and the transverse momentum range from 2.5 to 25 GeV/c. The results from this search are combined with a previously published search for the ��cc+��c+K��+ decay mode, yielding a maximum local significance of 4.0 standard deviations around the mass of 3620 MeV/c2, including systematic uncertainties. Taking into account the look-elsewhere effect in the 3.5��3.7 GeV/c2 mass window, the combined global significance is 2.9 standard deviations including systematic uncertainties.
Published: 2022
Full Text: View/download PDF

6. Search for the doubly charmed baryon Ξ cc + in the Ξ c + π − π + final state

Author: Aaij, R., Abdelmotteleb, A. S. W., Abellán Beteta, C., 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., Amato, S., Amey, J. L., Amhis, Y., An, L., Anderlini, L., 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, Ia., Bhasin, S., Bhom, J., Bian, L., Bieker, M. S., Bifani, S., Billoir, P., 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., Brodski, M., 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., Calero Diaz, L., Cali, S., Calladine, R., Calvi, M., Calvo Gomez, M., Camargo Magalhaes, P., Campana, P., Campoverde Quezada, A. 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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., 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., Shevchenko, V., Shields, E. B., Shimizu, Y., Shmanin, E., Shupperd, J. D., Siddi, B. G., Silva Coutinho, R., Simi, G., Simone, S., Skidmore, N., Skwarnicki, T., Slater, M. W., Slazyk, I., Smallwood, J. C., Smeaton, J. G., Smetkina, A., Smith, E., Smith, M., Snoch, A., Soares, M., Soares Lavra, L., Sokoloff, M. D., Soler, F. J. P., Solovev, A., Solovyev, I., Souza De Almeida, F. L., Souza De Paula, B., Spaan, B., Spadaro Norella, E., Spradlin, P., Stagni, F., Stahl, M., Stahl, S., Stanislaus, S., Steinkamp, O., Stenyakin, O., Stevens, H., Stone, S., Stramaglia, M. E., Straticiuc, M., 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., Tisserand, V., T’Jampens, S., Tobin, M., Tomassetti, L., Tong, X., Torres Machado, D., Tou, D. Y., Traill, M., Tran, M. T., Trifonova, E., 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 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., 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., Wark, H. M., Watson, N. K., Weber, S. G., Websdale, D., Weisser, C., Westhenry, B. D. C., White, D. J., Whitehead, M., Wiederhold, A. R., Wiedner, D., Wilkinson, G., Wilkinson, M., 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., Yushchenko, O., 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., Zonneveld, J. B., Zou, Q., Zucchelli, S., Zuliani, D., Zunica, G., and Apollo - University of Cambridge Repository
Subjects: Flavor physics, Regular Article - Experimental Physics, Hadron-Hadron scattering (experiments), High Energy Physics::Experiment, Branching fraction, Nuclear Experiment, QCD, Charm physics
Abstract: A search for the doubly charmed baryon Ξcc+ is performed in the Ξc+π−π+ invariant-mass spectrum, where the Ξc+ baryon is reconstructed in the pK−π+ final state. The study uses proton-proton collision data collected with the LHCb detector at a centre- of-mass energy of 13 TeV, corresponding to a total integrated luminosity of 5.4 fb−1. No significant signal is observed in the invariant-mass range of 3.4–3.8 GeV/c2. Upper limits are set on the ratio of branching fractions multiplied by the production cross-section with respect to the Ξcc++→ (Ξc+→ pK−π+)π+ decay for different Ξcc+ mass and lifetime hypotheses in the rapidity range from 2.0 to 4.5 and the transverse momentum range from 2.5 to 25 GeV/c. The results from this search are combined with a previously published search for the Ξcc+→Λc+K−π+ decay mode, yielding a maximum local significance of 4.0 standard deviations around the mass of 3620 MeV/c2, including systematic uncertainties. Taking into account the look-elsewhere effect in the 3.5–3.7 GeV/c2 mass window, the combined global significance is 2.9 standard deviations including systematic uncertainties.
Published: 2021

7. Angular analysis of the rare decay B s 0 �� + ��

Author: Aaij, R., Abdelmotteleb, A. S. W., Abell��n Beteta, C., 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., Amato, S., Amey, J. L., Amhis, Y., An, L., Anderlini, L., 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, Ia., Bhasin, S., Bhom, J., Bian, L., Bieker, M. S., Bifani, S., Billoir, P., Birch, M., Bishop, F. C. R., Bitadze, A., Bizzeti, A., Bj��rn, 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., Brodski, M., 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., Calero Diaz, 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., Casse, G., Cattaneo, M., Cavallero, G., Celani, S., Cerasoli, J., Cervenkov, D., Chadwick, A. J., Chapman, M. G., Charles, M., Charpentier, Ph., 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., Crkovsk��, 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 Bruyn, K., De Capua, S., De Cian, M., De Miranda, J. M., De Paula, L., De Serio, M., De Simone, D., De Simone, P., De Vries, J. A., Dean, C. T., Decamp, D., Dedu, V., Del Buono, L., Delaney, B., Dembinski, H.-P., Dendek, A., Denysenko, V., Derkach, D., Deschamps, O., Desse, F., Dettori, F., Dey, B., Di Cicco, A., Di Nezza, P., Didenko, S., Dieste Maronas, L., Dijkstra, H., Dobishuk, V., Dong, C., Donohoe, A. M., Dordei, F., Dos Reis, A. C., Douglas, L., Dovbnya, A., 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., Falabella, A., Fan, J., Fan, Y., Fang, B., Farry, S., Fazzini, D., F��o, 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., Fkiaras, A., 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., Gaintseva, T., Gallas Torreira, A., Galli, D., Gambetta, S., Gan, Y., Gandelman, M., Gandini, P., Gao, Y., Garau, M., Garcia Martin, L. M., Garcia Moreno, P., Garc��a Pardi��as, 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., Ghez, Ph., Giambastiani, L., Gibson, V., Giemza, H. K., Gilman, A. L., Giovannetti, M., Giovent��, A., Gironella Gironell, P., Giubega, L., Giugliano, C., Gizdov, K., Gkougkousis, E. L., Gligorov, V. 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J., Moron, J., Morris, A. B., Morris, A. G., Mountain, R., Mu, H., Muheim, F., Mulder, M., M��ller, D., M��ller, K., Murphy, C. H., Murray, D., Muzzetto, P., Naik, P., Nakada, T., Nandakumar, R., Nanut, T., Nasteva, I., Needham, M., Neri, I., Neri, N., Neubert, S., Neufeld, N., Newcombe, R., Nguyen, T. D., Nguyen-Mau, C., 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., Olivares, M. E., Onderwater, C. J. G., O��neil, R. H., Ossowska, A., Otalora Goicochea, J. M., Ovsiannikova, T., Owen, P., Oyanguren, A., 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, T. T. H., Philippov, A., Pica, L., Piccini, M., Pietrzyk, B., Pietrzyk, G., Pili, M., Pinci, D., Pisani, F., Pizzichemi, M., Resmi, P. K, 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., Pullen, H., Punzi, G., Qi, H., Qian, W., Qin, J., Qin, N., Quagliani, R., Quintana, B., Raab, N. V., Rabadan Trejo, R. I., Rachwal, B., Rademacker, J. H., 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., Ribatti, R., Ricciardi, S., Rinnert, K., Robbe, P., Robertson, G., Rodrigues, A. B., Rodrigues, E., Rodriguez Lopez, J. A., Rodriguez Rodriguez, E. R. R., 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., 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., Shevchenko, V., Shields, E. B., Shimizu, Y., Shmanin, E., Shupperd, J. D., Siddi, B. G., Silva Coutinho, R., Simi, G., Simone, S., Skidmore, N., Skwarnicki, T., Slater, M. W., Slazyk, I., Smallwood, J. C., Smeaton, J. G., Smetkina, A., Smith, E., Smith, M., Snoch, A., Soares, M., Soares Lavra, L., Sokoloff, M. D., Soler, F. J. P., Solovev, A., Solovyev, I., Souza De Almeida, F. L., Souza De Paula, B., Spaan, B., Spadaro Norella, E., Spradlin, P., Stagni, F., Stahl, M., Stahl, S., Stanislaus, S., Steinkamp, O., Stenyakin, O., Stevens, H., Stone, S., Stramaglia, M. E., Straticiuc, M., 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., Tisserand, V., T��Jampens, S., Tobin, M., Tomassetti, L., Tong, X., Torres Machado, D., Tou, D. Y., Tran, M. T., Trifonova, E., 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 Herwijnen, E., Van Hulse, C. B., Van Veghel, M., Vazquez Gomez, R., Vazquez Regueiro, P., V��zquez 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., Wark, H. M., Watson, N. K., Weber, S. G., Websdale, D., Weisser, C., Westhenry, B. D. C., White, D. J., Whitehead, M., Wiederhold, A. R., Wiedner, D., Wilkinson, G., Wilkinson, M., 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., Yushchenko, O., 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., Zonneveld, J. B., Zou, Q., Zucchelli, S., Zuliani, D., and Zunica, G.
Subjects: FCNC Interaction, Flavor physics, Rare decay, Regular Article - Experimental Physics, Hadron-Hadron scattering (experiments), High Energy Physics::Experiment, Nuclear Experiment, B physics
Abstract: An angular analysis of the rare decay Bs0�� +�� is presented, using proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosity of 8.4 fb��1. The observables describing the angular distributions of the decay Bs0�� +�� are determined in regions of q2, the square of the dimuon invariant mass. The results are consistent with Standard Model predictions.
Published: 2021
Full Text: View/download PDF

8. Angular analysis of the rare decay B s 0 → ϕμ + μ −

Author: Aaij, R., Abdelmotteleb, A. S. W., Abellán Beteta, C., 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., Amato, S., Amey, J. L., Amhis, Y., An, L., Anderlini, L., 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, Ia., Bhasin, S., Bhom, J., Bian, L., Bieker, M. S., Bifani, S., Billoir, P., 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., Brodski, M., 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., Calero Diaz, 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., Casse, G., Cattaneo, M., Cavallero, G., Celani, S., Cerasoli, J., Cervenkov, D., Chadwick, A. J., Chapman, M. G., Charles, M., Charpentier, Ph., 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., Davies, J. E., Davis, A., De Aguiar Francisco, O., De Bruyn, K., De Capua, S., De Cian, M., De Miranda, J. M., De Paula, L., De Serio, M., De Simone, D., De Simone, P., de Vries, J. A., Dean, C. T., Decamp, D., Dedu, V., Del Buono, L., Delaney, B., Dembinski, H.-P., Dendek, A., Denysenko, V., Derkach, D., Deschamps, O., Desse, F., Dettori, F., Dey, B., Di Cicco, A., Di Nezza, P., Didenko, S., Dieste Maronas, L., Dijkstra, H., Dobishuk, V., Dong, C., Donohoe, A. M., Dordei, F., dos Reis, A. C., Douglas, L., Dovbnya, A., 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., Falabella, A., Fan, J., Fan, Y., Fang, B., Farry, S., Fazzini, D., Féo, 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., Fkiaras, A., 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., Gaintseva, T., 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., Ghez, Ph., Giambastiani, L., Gibson, V., Giemza, H. K., Gilman, A. L., Giovannetti, M., Gioventù, A., Gironella Gironell, P., Giubega, L., 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., Gorbounov, P., Gorelov, I. V., Gotti, C., Govorkova, E., Grabowski, J. P., Grammatico, T., Granado Cardoso, L. A., Graugés, E., Graverini, E., Graziani, G., Grecu, A., Greeven, L. M., Grieser, N. A., Grillo, L., Gromov, S., Gruberg Cazon, B. R., Gu, C., Guarise, M., Günther, P. A., Gushchin, E., Guth, A., Guz, Y., Gys, T., Hadavizadeh, T., Haefeli, G., Haen, C., Haimberger, J., Halewood-leagas, T., Hamilton, P. M., Hammerich, J. P., Han, Q., Han, X., Hancock, T. H., Hansmann-Menzemer, S., Harnew, N., Harrison, T., Hasse, C., Hatch, M., He, J., Hecker, M., Heijhoff, K., Heinicke, K., Hennequin, A. M., Hennessy, K., Henry, L., Heuel, J., Hicheur, A., Hill, D., Hilton, M., Hollitt, S. E., 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, F., John, M., Johnson, D., Jones, C. R., Jones, T. P., Jost, B., Jurik, N., Kalavan Kadavath, S. H., Kandybei, S., Kang, Y., Karacson, M., Karpov, M., 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., Kravchenko, P., Kravchuk, L., Krawczyk, R. D., Kreps, M., Kress, F., Kretzschmar, S., Krokovny, P., Krupa, W., Krzemien, W., 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., 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, S., Lobo Salvia, A., Loi, A., Lomba Castro, J., Longstaff, I., Lopes, J. H., Lopez Solino, 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., Ma, L., Ma, R., Maccolini, S., Machefert, F., Maciuc, F., Macko, V., Mackowiak, P., Maddrell-Mander, S., Madejczyk, O., Madhan Mohan, L. R., Maev, O., 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., Marangotto, D., Maratas, J., Marchand, J. F., Marconi, U., Mariani, S., Marin Benito, C., Marinangeli, M., Marks, J., Marshall, A. M., Marshall, P. J., Martellotti, G., Martinazzoli, L., Martinelli, M., Martinez Santos, D., Martinez Vidal, F., Massafferri, A., Materok, M., Matev, R., Mathad, A., Mathe, Z., 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., Meinert, N., 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., Minzoni, L., Mitchell, S. E., Mitreska, B., Mitzel, D. S., Mödden, A., Mohammed, R. A., Moise, R. D., 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, D., Müller, K., Murphy, C. H., Murray, D., Muzzetto, P., Naik, P., Nakada, T., Nandakumar, R., Nanut, T., Nasteva, I., Needham, M., Neri, I., Neri, N., Neubert, S., Neufeld, N., Newcombe, R., Nguyen, T. D., Nguyen-Mau, C., 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., Olivares, M. E., Onderwater, C. J. G., O’neil, R. H., Ossowska, A., Otalora Goicochea, J. M., Ovsiannikova, T., Owen, P., Oyanguren, A., 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, T. T. H., Philippov, A., Pica, L., Piccini, M., Pietrzyk, B., Pietrzyk, G., Pili, M., Pinci, D., Pisani, F., Pizzichemi, M., Resmi, P. K, 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., Pullen, H., Punzi, G., Qi, H., Qian, W., Qin, J., Qin, N., Quagliani, R., Quintana, B., Raab, N. V., Rabadan Trejo, R. I., Rachwal, B., Rademacker, J. H., 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., Ribatti, R., Ricciardi, S., Rinnert, K., Robbe, P., Robertson, G., Rodrigues, A. B., Rodrigues, E., Rodriguez Lopez, J. A., Rodriguez Rodriguez, E. R. R., 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., 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., Shevchenko, V., Shields, E. B., Shimizu, Y., Shmanin, E., Shupperd, J. D., Siddi, B. G., Silva Coutinho, R., Simi, G., Simone, S., Skidmore, N., Skwarnicki, T., Slater, M. W., Slazyk, I., Smallwood, J. C., Smeaton, J. G., Smetkina, A., Smith, E., Smith, M., Snoch, A., Soares, M., Soares Lavra, L., Sokoloff, M. D., Soler, F. J. P., Solovev, A., Solovyev, I., Souza De Almeida, F. L., Souza De Paula, B., Spaan, B., Spadaro Norella, E., Spradlin, P., Stagni, F., Stahl, M., Stahl, S., Stanislaus, S., Steinkamp, O., Stenyakin, O., Stevens, H., Stone, S., Stramaglia, M. E., Straticiuc, M., 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., Tisserand, V., T’Jampens, S., Tobin, M., Tomassetti, L., Tong, X., Torres Machado, D., Tou, D. Y., Tran, M. T., Trifonova, E., 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 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., 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., Wark, H. M., Watson, N. K., Weber, S. G., Websdale, D., Weisser, C., Westhenry, B. D. C., White, D. J., Whitehead, M., Wiederhold, A. R., Wiedner, D., Wilkinson, G., Wilkinson, M., 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., Yushchenko, O., 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., Zonneveld, J. B., Zou, Q., Zucchelli, S., Zuliani, D., Zunica, G., and Apollo - University of Cambridge Repository
Subjects: FCNC Interaction, Flavor physics, Rare decay, Regular Article - Experimental Physics, Hadron-Hadron scattering (experiments), High Energy Physics::Experiment, Nuclear Experiment, B physics
Abstract: An angular analysis of the rare decay Bs0→ ϕμ+μ− is presented, using proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosity of 8.4 fb−1. The observables describing the angular distributions of the decay Bs0→ ϕμ+μ− are determined in regions of q2, the square of the dimuon invariant mass. The results are consistent with Standard Model predictions.
Published: 2021

9. A closer look at observables from exclusive semileptonic B → (π, ρ)ℓνℓ decays

Author: Aritra Biswas and Soumitra Nandi
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Physics beyond the Standard Model, Spectrum (functional analysis), Lattice (group), Observable, QC770-798, Other experiments, B physics, Standard Model, Flavor physics, Nuclear and particle physics. Atomic energy. Radioactivity, Beyond Standard Model, Invariant mass, Lepton
Abstract: This article analyses the available inputs in B → πℓνℓ and B → ρℓνℓ decays which include the measured values of differential rate in different q2-bins (lepton invariant mass spectrum), lattice, and the newly available inputs on the relevant form-factors from the light-cone sum rules (LCSR) approach. We define different fit scenarios, and in each of these scenarios, we predict a few observables in the standard model (SM). For example, $$ R(M)=\frac{\mathcal{B}\left(B\to M{\ell}_i{\nu}_{\ell_i}\right)}{\mathcal{B}\left(B\to M{\ell}_j{\nu}_{\ell_j}\right)},{R}_{\ell_j}^{\ell_i}(M)=\frac{\mathcal{B}\left(B\to {\ell}_i{\nu}_{\ell_i}\right)}{\mathcal{B}\left(B\to M{\ell}_j{\nu}_{\ell_j}\right)} $$ R M = B B → M ℓ i ν ℓ i B B → M ℓ j ν ℓ j , R ℓ j ℓ i M = B B → ℓ i ν ℓ i B B → M ℓ j ν ℓ j with M = π or ρ and ℓi,j = e, μ or τ. We also discuss the new physics (NP) sensitivities of all these observables and obtain bounds on a few NP Wilson coefficients in b → uτντ decays using the available data. We have noted that the data at present allows sizeable NP contributions in this mode. Also, we have predicted a few angular observables relevant to these decay modes.
Published: 2021
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10. Measurement of CP violation in B 0 → D ∗± D ∓ decays

Author: Aaij, R, Abellán Beteta, C, Ackernley, T, Adeva, B, Adinolfi, M, Afsharnia, H, Aidala, CA, Aiola, S, Ajaltouni, Z, Akar, S, Albicocco, P, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreotti, M, Archilli, F, Arnau Romeu, J, Artamonov, A, Artuso, M, Arzymatov, K, Aslanides, E, Atzeni, M, Audurier, B, Bachmann, S, Back, JJ, Baker, S, Balagura, V, Baldini, W, Baranov, A, Barlow, RJ, Barsuk, S, Barter, W, Bartolini, M, Baryshnikov, F, Bassi, G, Batozskaya, V, Batsukh, B, Battig, A, Bay, A, Becker, M, Bedeschi, F, Bediaga, I, Beiter, A, Bel, LJ, Belavin, V, Belin, S, Beliy, N, Bellee, V, Belloli, N, Belous, K, Belyaev, I, Bencivenni, G, Ben-Haim, E, Benson, S, Beranek, S, Berezhnoy, A, Bernet, R, Berninghoff, D, Bernstein, HC, Bertholet, E, Bertolin, A, Betancourt, C, Betti, F, Bettler, MO, Bezshyiko, I, Bhasin, S, Bhom, J, Bieker, MS, Bifani, S, Billoir, P, Bizzeti, A, Bjørn, M, Blago, MP, Blake, T, Blanc, F, Blusk, S, Bobulska, D, Bocci, V, Boente Garcia, O, Boettcher, T, Boldyrev, A, Bondar, A, Bondar, N, Borghi, S, Borisyak, M, Borsato, M, Borsuk, JT, Bowcock, TJV, Bozzi, C, Bradley, MJ, Braun, S, and Apollo - University of Cambridge Repository
Subjects: Flavor physics, CP violation, Hadron, Electroweak interaction, Hadron scattering (experiments), B physics
Abstract: The decay-time-dependent $CP$ asymmetry in $B^0 \to D^{*\pm}D^{\mp}$ decays is measured using a data set corresponding to an integrated luminosity of $9$fb$^{-1}$ recorded by the LHCb detector in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 TeV. The $CP$ parameters are measured as $ S_{D^*D} = -0.861 \pm 0.077\,\text{(stat)} \pm 0.019 \,\text{(syst)}\,, $ $ \Delta S_{D^*D} = 0.019 \pm 0.075 \,\text{(stat)} \pm 0.012 \,\text{(syst)} \,, $ $ C_{D^*D} = -0.059 \pm 0.092 \,\text{(stat)} \pm 0.020 \,\text{(syst)} \,, $ $ \Delta C_{D^*D} = -0.031 \pm 0.092 \,\text{(stat)} \pm 0.016 \,\text{(syst)} \,, $ $ {\cal A}_{D^*D} = 0.008 \pm 0.014 \,\text{(stat)} \pm 0.006 \,\text{(syst)}\,. $ The analysis provides the most precise single measurement of $CP$ violation in this decay channel to date. All parameters are consistent with their current world average values.
Published: 2021
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11. Observation of the semileptonic decay B+→ pp¯ μ+νμ

Author: Aaij, R, Abellán Beteta, C, Ackernley, T, Adeva, B, Adinolfi, M, Afsharnia, H, Aidala, CA, Aiola, S, Ajaltouni, Z, Akar, S, Albicocco, P, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreotti, M, Archilli, F, Arnau Romeu, J, Artamonov, A, Artuso, M, Arzymatov, K, Aslanides, E, Atzeni, M, Audurier, B, Bachmann, S, Back, JJ, Baker, S, Balagura, V, Baldini, W, Baranov, A, Barlow, RJ, Barsuk, S, Barter, W, Bartolini, M, Baryshnikov, F, Bassi, G, Batozskaya, V, Batsukh, B, Battig, A, Bay, A, Becker, M, Bedeschi, F, Bediaga, I, Beiter, A, Bel, LJ, Belavin, V, Belin, S, Beliy, N, Bellee, V, Belous, K, Belyaev, I, Bencivenni, G, Ben-Haim, E, Benson, S, Beranek, S, Berezhnoy, A, Bernet, R, Berninghoff, D, Bernstein, HC, Bertholet, E, Bertolin, A, Betancourt, C, Betti, F, Bettler, MO, Bezshyiko, I, Bhasin, S, Bhom, J, Bieker, MS, Bifani, S, Billoir, P, Bizzeti, A, Bjørn, M, Blago, MP, Blake, T, Blanc, F, Blusk, S, Bobulska, D, Bocci, V, Boente Garcia, O, Boettcher, T, Boldyrev, A, Bondar, A, Bondar, N, Borghi, S, Borisyak, M, Borsato, M, Borsuk, JT, Bowcock, TJV, Bozzi, C, Bradley, MJ, Braun, S, Brea Rodriguez, A, and Apollo - University of Cambridge Repository
Subjects: Flavor physics, Hadron-Hadron scattering (experiments), Branching fraction, B physics
Abstract: The Cabibbo-suppressed semileptonic decay $B^{+}\to p\overline{p}\mu^{+}\nu_{\mu}$ is observed for the first time using a sample of $pp$ collisions corresponding to an integrated luminosity of 1.0, 2.0 and 1.7fb$^{-1}$ at centre-of-mass energies of 7, 8 and 13TeV, respectively. The differential branching fraction is measured as a function of the $p\overline{p}$ invariant mass using the decay mode $B^{+}\to J/\psi K^{+}$ for normalisation. The total branching fraction is measured to be \begin{align*} \mathcal{B}(B^{+}\to p\overline{p}\mu^{+}\nu_{\mu}) = (5.27 ^{+0.23}_{-0.24} \pm 0.21 \pm 0.15)\times 10^{-6}, \end{align*} where the first uncertainty is statistical, the second systematic and the third is from the uncertainty on the branching fraction of the normalisation channel.
Published: 2021
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12. Search for the lepton flavour violating decay B+ -> K+mu(-)tau(+) using Bs20 decays

Author: Aaij, R, Beteta, C Abellan, Adeva, B, Adinolfi, M, Aidala, CA, Ajaltouni, Z, Akar, S, Albicocco, P, Albrecht, J, Alessio, F, Alexander, M, Albero, A Alfonso, Alkhazov, G, Cartelle, P Alvarez, Alves, AA, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreotti, M, Andrews, JE, Archilli, F, D'Argent, P, Romeu, J Arnau, Artamonov, A, Artuso, M, Arzymatov, K, Aslanides, E, Atzeni, M, Audurier, B, Bachmann, S, Back, JJ, Baker, S, Balagura, V, Baldini, W, Baranov, A, Barlow, RJ, Barrand, GC, Barsuk, S, Barter, W, Bartolini, M, Baryshnikov, F, Batozskaya, V, Batsukh, B, Battig, A, Battista, V, Bay, A, Beddow, J, Bedeschi, F, Bediaga, I, Beiter, A, Bel, LJ, Belin, S, Beliy, N, Bellee, V, Belloli, N, Belous, K, Belyaev, I, Ben-Haim, E, Bencivenni, G, Benson, S, Beranek, S, Berezhnoy, A, Bernet, R, Berninghoff, D, Bertholet, E, Bertolin, A, Betancourt, C, Betti, F, Bettler, MO, Van Beuzekom, M, Bezshyiko, Ia, Bhasin, S, Bhom, J, Bifani, S, Billoir, P, Birnkraut, A, Bizzeti, A, Bjorn, M, Blago, MP, Blake, T, Blanc, F, Blusk, S, Bobulska, D, Bocci, V, Boente Garcia, O, Boettcher, T, Bondar, A, Bondar, N, Borghi, S, Borisyak, M, Borsato, M, Bossu, F, Boubdir, M, Bowcock, TJV, Bozzi, C, Braun, S, Brodski, M, Brodzicka, J, Gonzalo, A Brossa, Brundu, D, Buchanan, E, Buonaura, A, Burr, C, Bursche, A, Buytaert, J, Byczynski, W, Cadeddu, S, Cai, H, Calabrese, R, Calladine, R, Calvi, M, Calvo Gomez, M, Camboni, A, Campana, P, Perez, DH Campora, Capriotti, L, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carniti, P, Carvalho Akiba, K, Casse, G, Cassina, L, Cattaneo, M, Cavallero, G, Cenci, R, Chamont, D, Chapman, MG, Charles, M, Charpentier, Ph, Chatzikonstantinidis, G, Chefdeville, M, Chekalina, V, Chen, C, Chen, S, Chitic, S-G, Chobanova, V, Chrzaszcz, M, Chubykin, A, Ciambrone, P, Cid Vidal, X, Ciezarek, G, Cindolo, F, Clarke, PEL, Clemencic, M, Cliff, HV, Closier, J, Coco, V, Coelho, JAB, Cogan, J, Cogneras, E, Cojocariu, L, Collins, P, Colombo, T, Comerma-Montells, A, Contu, A, Coombs, G, Coquereau, S, Corti, G, Corvo, M, Sobral, CM Costa, Couturier, B, Cowan, GA, Craik, DC, Crocombe, A, Cruz Torres, M, Currie, R, D'Ambrosio, C, Da Cunha Marinho, F, Da Silva, CL, Dall'Occo, E, Dalseno, J, Danilina, A, Davis, A, Francisco, O De Aguiar, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, JM, De Paula, L, De Serio, M, De Simone, P, Dean, CT, Decamp, D, Del Buono, L, Delaney, B, Dembinski, H-P, Demmer, M, Dendek, A, Derkach, D, Deschamps, O, Desse, F, Dettori, F, Dey, B, Di Canto, A, Di Nezza, P, Didenko, S, Dijkstra, H, Dordei, F, Dorigo, M, Dosil Suarez, A, Douglas, L, Dovbnya, A, Dreimanis, K, Dufour, L, Dujany, G, Durante, P, Durham, JM, Dutta, D, Dzhelyadin, R, Dziewiecki, M, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Eisenhardt, S, Eitschberger, U, Ekelhof, R, Eklund, L, Ely, S, Ene, A, Escher, S, Esen, S, Evans, T, Falabella, A, Farley, N, Farry, S, Fazzini, D, Declara, P Fernandez, Fernandez Prieto, A, Ferrari, F, Lopes, L Ferreira, Ferreira Rodrigues, F, Ferro-Luzzi, M, Filippov, S, Fini, RA, Fiorini, M, Firlej, M, Fitzpatrick, C, Fiutowski, T, Fleuret, F, Fontana, M, Fontanelli, F, Forty, R, Lima, V Franco, Frank, M, Frei, C, Fu, J, Funk, W, Farber, C, Feo, M, Gabriel, E, Gallas Torreira, A, Galli, D, Gallorini, S, Gambetta, S, Gan, Y, Gandelman, M, Gandini, P, Gao, Y, Garcia Martin, LM, Garcia Plana, B, Pardinas, J Garcia, Tico, J Garra, Garrido, L, Gascon, D, Gaspar, C, Gavardi, L, Gazzoni, G, Gerick, D, Gersabeck, E, Gersabeck, M, Gershon, T, Gerstel, D, Ghez, Ph, Gibson, V, Girard, OG, Gironella Gironell, P, Giubega, L, Gizdov, K, Gligorov, Golubkov, D, Golutvin, A, Gomes, A, Gorelov, Gotti, C, Govorkova, E, Grabowski, JP, Graciani Diaz, R, Cardoso, LA Granado, Grauges, E, Graverini, E, Graziani, G, Grecu, A, Greim, R, Griffith, P, Grillo, L, Gruber, L, Cazon, BR Gruberg, Gruenberg, O, Gu, C, Gushchin, E, Guth, A, Guz, Yu, Gys, T, Gobel, C, Hadavizadeh, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Haines, SC, Hamilton, B, Han, X, Hancock, TH, Hansmann-Menzemer, S, Harnew, N, Harrison, T, Hasse, C, Hatch, M, He, J, Hecker, M, Heinicke, K, Heister, A, Hennessy, K, Henry, L, Van Herwijnen, E, Heuel, J, Hess, M, Hicheur, A, Charman, R Hidalgo, Hill, D, Hilton, M, Hopchev, PH, Hu, J, Hu, W, Huang, W, Huard, ZC, Hulsbergen, W, Humair, T, Hushchyn, M, Hutchcroft, D, Hynds, D, Ibis, P, Idzik, M, Ilten, P, Inglessi, A, Inyakin, A, Ivshin, K, Jacobsson, R, Jalocha, J, Jans, E, Jashal, BK, Jawahery, A, Jiang, F, John, M, Johnson, D, Jones, CR, Joram, C, Jost, B, Jurik, N, Kandybei, S, Karacson, M, Kariuki, JM, Karodia, S, Kazeev, N, Kecke, M, Keizer, F, Kelsey, M, Kenzie, M, Ketel, T, Khairullin, E, Khanji, B, Khurewathanakul, C, Kim, KE, Kirn, T, Kirsebom, VS, Klaver, S, Klimaszewski, K, Klimkovich, T, Koliiev, S, Kolpin, M, Kopecna, R, Koppenburg, P, Kostiuk, I, Kotriakhova, S, Kozeiha, M, Kravchuk, L, Kreps, M, Kress, F, Krokovny, P, Krupa, W, Krzemien, W, Kucewicz, W, Kucharczyk, M, Kudryavtsev, V, Kuonen, AK, Kvaratskheliya, T, Lacarrere, D, Lafferty, G, Lai, A, Lancierini, D, Lanfranchi, G, Langenbruch, C, Latham, T, Lazzeroni, C, Le Gac, R, At, Le, Lefevre, R, Lemaitre, F, Leroy, O, Lesiak, T, Leverington, B, Li, P-R, Li, Y, Li, Z, Liang, X, Likhomanenko, T, Lindner, R, Lionetto, F, Lisovskyi, V, Liu, G, Liu, X, Loh, D, Loi, A, Longstaff, I, Lopes, JH, Lovell, GH, Lucchesi, D, Lucio Martinez, M, Lupato, A, Luppi, E, Lupton, O, Lusiani, A, Lyu, X, Machefert, F, Maciuc, F, Macko, V, Mackowiak, P, Maddrell-Mander, S, Maev, O, Maguire, K, Maisuzenko, D, Majewski, MW, Malde, S, Malecki, B, Malinin, A, Maltsev, T, Manca, G, Mancinelli, G, Marangotto, D, Maratas, J, Marchand, JF, Marconi, U, Benito, C Marin, Marinangeli, M, Marino, P, Marks, J, Marshall, PJ, Martellotti, G, Martinelli, M, Martinez Santos, D, Martinez Vidal, F, Massafferri, A, Materok, M, Matev, R, Mathad, A, Mathe, Z, Matteuzzi, C, Mauri, A, Maurice, E, Maurin, B, McCann, M, Mcnab, A, McNulty, R, Mead, JV, Meadows, B, Meaux, C, Meinert, N, Melnychuk, D, Merk, M, Merli, A, Michielin, E, Milanes, DA, Millard, E, Minard, M-N, Minzoni, L, Mitzel, DS, Mogini, A, Moise, RD, Mombaecher, T, Monroy, IA, Monteil, S, Morandin, M, Morello, G, Morello, MJ, Morgunova, O, Moron, J, Morris, AB, Mountain, R, Muheim, F, Mukherjee, M, Mulder, M, Murphy, CH, Murray, D, Moedden, A, Mueller, D, Mueller, J, Mueller, K, Mueller, V, Naik, P, Nakada, T, Nandakumar, R, Nandi, A, Nanut, T, Nasteva, I, Needham, M, Neri, N, Neubert, S, Neufeld, N, Newcombe, R, Nguyen, TD, Nguyen-Mau, C, Nieswand, S, Niet, R, Nikitin, N, Nogay, A, Nolte, NS, O'Hanlon, DP, Oblakowska-Mucha, A, Obraztsov, V, Oldeman, R, Onderwater, CJG, Ossowska, A, Otalora Goicochea, JM, Ovsiannikova, T, Owen, P, Oyanguren, A, Pais, PR, Pajero, T, Palano, A, Palutan, M, Panshin, G, Papanestis, A, Pappagallo, M, Pappalardo, LL, Parker, W, Parkes, C, Passaleva, G, Pastore, A, Patel, M, Patrignani, C, Pearce, A, Pellegrino, A, Penso, G, Altarelli, M Pepe, Perazzini, S, Pereima, D, Perret, P, Pescatore, L, Petridis, K, Petrolini, A, Petrov, A, Petrucci, S, Petruzzo, M, Pietrzyk, B, Pietrzyk, G, Pikies, M, Pili, M, Pinci, D, Pinzino, J, Pisani, F, Piucci, A, Placinta, V, Playfer, S, Plews, J, Plo Casasus, M, Polci, F, Lener, M Poli, Poluektov, A, Polukhina, N, Polyakov, I, Polycarpo, E, Pomery, GJ, Ponce, S, Popov, A, Popov, D, Poslavskii, S, Price, E, Prisciandaro, J, Prouve, C, Pugatch, V, Navarro, A Puig, Pullen, H, Punzi, G, Qian, W, Qin, J, Quagliani, R, Quintana, B, Raab, NV, Rachwal, B, Rademacker, JH, Rama, M, Ramos Pernas, M, Rangel, MS, Ratnikov, F, Raven, G, Salzgeber, M Ravonel, Reboud, M, Redi, F, Reichert, S, Dos Reis, AC, Reiss, F, Remon Alepuz, C, Ren, Z, Renaudin, V, Ricciardi, S, Richards, S, Rinnert, K, Robbe, P, Robert, A, Rodrigues, AB, Rodrigues, E, Rodriguez Lopez, JA, Roehrken, M, Roiser, S, Rollings, A, Romanovskiy, V, Romero Vidal, A, Rotondo, M, Rudolph, MS, Ruf, T, Ruiz Vidal, J, Saborido Silva, JJ, Sagidova, N, Saitta, B, Salustino Guimaraes, V, Gras, C Sanchez, Sanchez Mayordomo, C, Sanmartin Sedes, B, Santacesaria, R, Santamarina Rios, C, Santimaria, M, Santovetti, E, Sarpis, G, Sarti, A, Satriano, C, Satta, A, Saur, M, Savrina, D, Schael, S, Schellenberg, M, Schiller, M, Schindler, H, Schmelling, M, Schmelzer, T, Schmidt, B, Schneider, O, Schopper, A, Schreiner, HF, Schubiger, M, Schulte, S, Schune, MH, Schwemmer, R, Sciascia, B, Sciubba, A, Semennikov, A, Sepulveda, ES, Sergi, A, Serra, N, Serrano, J, Sestini, L, Seuthe, A, Seyfert, P, Shapkin, M, Shcheglov, Y, Shears, T, Shekhtman, L, Shevchenko, V, Shmanin, E, Siddi, BG, Coutinho, R Silva, Silva De Oliveira, L, Simi, G, Simone, S, Skiba, I, Skidmore, N, Skwarnicki, T, Slater, MW, Smeaton, JG, Smith, E, Smith, IT, Smith, M, Soares, M, Soares Lavra, L, Sokoloff, MD, Soler, FJP, Souza De Paula, B, Spaan, B, Norella, E Spadaro, Spradlin, P, Stagni, F, Stahl, M, Stahl, S, Stefko, P, Stefkova, S, Steinkamp, O, Stemmle, S, Stenyakin, O, Stepanova, M, Stevens, H, Stocchi, A, Stone, S, Storaci, B, Stracka, S, Stramaglia, ME, Straticiuc, M, Straumann, U, Strokov, S, Sun, J, Sun, L, Sun, Y, Swientek, K, Szabelski, A, Szumlak, T, Szymanski, M, T'Jampens, S, Tang, Z, Tayduganov, A, Tekampe, T, Tellarini, G, Teubert, F, Thomas, E, Van Tilburg, J, Tilley, MJ, Tisserand, V, Tobin, M, Tolk, S, Tomassetti, L, Tonelli, D, Tou, DY, Tourinho Jadallah Aoude, R, Tournefier, E, Traill, M, Tran, MT, Trisovic, A, Tsaregorodtsev, A, Tuci, G, Tully, A, Tuning, N, Ukleja, A, Usachov, A, Ustyuzhanin, A, Uwer, U, Vagner, A, Vagnoni, V, Valassi, A, Valat, S, Valenti, G, Gomez, R Vazquez, Vazquez Regueiro, P, Vecchi, S, Van Veghel, M, Velthuis, JJ, Veltri, M, Veneziano, G, Venkateswaran, A, Vernet, M, Veronesi, M, Vesterinen, M, Barbosa, JV Viana, Vieira, D, Vieites Diaz, M, Viemann, H, Vilasis-Cardona, X, Vitkovskiy, A, Vitti, M, Volkov, V, Vollhardt, A, Bruch, D Vom, Voneki, B, Vorobyev, A, Vorobyev, V, Voropaev, N, De Vries, JA, Sierra, C Vazquez, Waldi, R, Walsh, J, Wang, J, Wang, M, Wang, Y, Wang, Z, Ward, DR, Wark, HM, Watson, NK, Websdale, D, Weiden, A, Weisser, C, Whitehead, M, Wilkinson, G, Wilkinson, M, Williams, I, Williams, MRJ, Williams, M, Williams, T, Wilson, FF, Winn, M, Wislicki, W, Witek, M, Wormser, G, Wotton, SA, Wyllie, K, Xiao, D, Xie, Y, Xu, A, Xu, M, Xu, Q, Xu, Z, Yang, Z, Yao, Y, Yeomans, LE, Yin, H, Yu, J, Yuan, X, Yushchenko, O, Zarebski, KA, Zavertyaev, M, Zhang, D, Zhang, L, Zhang, WC, Zhang, Y, Zhelezov, A, Zheng, Y, Zhu, X, Zhukov, V, Zonneveld, JB, and Zucchelli, S
Subjects: Flavor physics, Rare decay, Hadron-Hadron scattering (experiments), High Energy Physics::Phenomenology, Beyond Standard Model, High Energy Physics::Experiment, B physics
Abstract: A search is presented for the lepton flavour violating decay $B^+ \rightarrow K^+ \mu^- \tau^+$ using a sample of proton--proton collisions at centre-of-mass energies of 7, 8, and 13 TeV, collected with the LHCb detector and corresponding to a total integrated luminosity of 9 fb${}^{-1}$. The $\tau$ leptons are selected inclusively, primarily via decays with a single charged particle. The four-momentum of the $\tau$ lepton is determined by using $B^+$ mesons from $B_{s2}^{*0} \rightarrow B^+ K^-$ decays. No significant excess is observed, and an upper limit is set on the branching fraction $B(B^+ \rightarrow K^+ \mu^- \tau^+) < 3.9 \times 10^{-5}$ at 90% confidence level. The obtained limit is comparable to the world-best limit.
Published: 2021
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13. Measurement of the Λb0 → J/ψΛ angular distribution and the Λb0 polarisation in pp collisions

Author: Aaij, R, Abellán Beteta, C, Ackernley, T, Adeva, B, Adinolfi, M, Afsharnia, H, Aidala, CA, Aiola, S, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreianov, A, Andreotti, M, Archilli, F, Artamonov, A, Artuso, M, Arzymatov, K, Aslanides, E, Atzeni, M, Audurier, B, Bachmann, S, Back, JJ, Baker, S, Balagura, V, Baldini, W, Baptista Leite, J, Barlow, RJ, Barsuk, S, Barter, W, Bartolini, M, Baryshnikov, F, Basels, JM, Bassi, G, Batozskaya, V, Batsukh, B, Battig, A, Bay, A, Becker, M, Bedeschi, F, Bediaga, I, Beiter, A, Belavin, V, Belin, S, Bellee, V, Belous, K, Belyaev, I, Bencivenni, G, Ben-Haim, E, Benson, S, Berezhnoy, A, Bernet, R, Berninghoff, D, Bernstein, HC, Bertella, C, Bertholet, E, Bertolin, A, Betancourt, C, Betti, F, Bettler, MO, Bezshyiko, I, Bhasin, S, Bhom, J, Bieker, MS, Bifani, S, Billoir, P, Bizzeti, A, Bjørn, M, Blago, MP, Blake, T, Blanc, F, Blusk, S, Bobulska, D, Bocci, V, Boente Garcia, O, Boettcher, T, Boldyrev, A, Bondar, A, Bondar, N, Borghi, S, Borisyak, M, Borsato, M, Borsuk, JT, Bowcock, TJV, Boyer, A, Bozzi, C, Bradley, MJ, Braun, S, Brea Rodriguez, A, Brodski, M, Kreps, M. [0000-0002-6133-486X], and Apollo - University of Cambridge Repository
Subjects: Flavor physics, Heavy quark production, Hadron-Hadron scattering (experiments), Polarization, High Energy Physics::Phenomenology, High Energy Physics::Experiment, Nuclear Experiment, B physics
Abstract: This paper presents an analysis of the $\Lambda^0_b\rightarrow J/\psi\Lambda$ angular distribution and the transverse production polarisation of $\Lambda^0_b$ baryons in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 TeV. The measurements are performed using data corresponding to an integrated luminosity of 4.9 fb$^{-1}$, collected with the LHCb experiment. The polarisation is determined in a fiducial region of $\Lambda^0_b$ transverse momentum and pseudorapidity of $1 < p_{T} < 20$ GeV$/c$ and $2 < \eta < 5$, respectively. The data are consistent with $\Lambda^0_b$ baryons being produced unpolarised in this region. The parity-violating asymmetry parameter of the $\Lambda\rightarrow p\pi^-$ decay is also determined from the data and its value is found to be consistent with a recent measurement by the BES\,III collaboration.
Published: 2021
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14. Measurement of CP observables in B-+/- -> DK +/- and B-+/- -> D pi(+/-) with D -> KS0K +/-pi -/+ decays

Author: Aaij, R, Beteta, C Abellan, Ackernley, T, Adeva, B, Adinolfi, M, Afsharnia, H, Aidala, CA, Aiola, S, Ajaltouni, Z, Akar, S, Albicocco, P, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Alkhazov, G, Cartelle, P Alvarez, Alves Jr, AA, Amato, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreotti, M, Archilli, F, Artamonov, A, Artuso, M, Arzymatov, K, Aslanides, E, Atzeni, M, Audurier, B, Bachmann, S, Back, JJ, Baker, S, Balagura, V, Baldini, W, Baranov, A, Barlow, RJ, Barsuk, S, Barter, W, Bartolini, M, Baryshnikov, F, Basels, JM, Bassi, G, Batozskaya, V, Batsukh, B, Battig, A, Bay, A, Becker, M, Bedeschi, F, Bediaga, I, Beiter, A, Bel, LJ, Belavin, V, Belin, S, Bellee, V, Belous, K, Belyaev, I, Bencivenni, G, Ben-Haim, E, Benson, S, Beranek, S, Berezhnoy, A, Bernet, R, Berninghoff, D, Bernstein, HC, Bertella, C, Bertholet, E, Bertolin, A, Betancourt, C, Betti, F, Bettler, MO, Bezshyiko, Ia, Bhasin, S, Bhom, J, Bieker, MS, Bifani, S, Billoir, P, Bizzeti, A, Bjorn, M, Blago, MP, Blake, T, Blanc, F, Blusk, S, Bobulska, D, Bocci, V, Boente Garcia, O, Boettcher, T, Boldyrev, A, Bondar, A, Bondar, N, Borghi, S, Borisyak, M, Borsato, M, Borsuk, JT, Bowcock, TJV, Bozzi, C, Bradley, MJ, Braun, S, Brea Rodriguez, A, Brodski, M, Brodzicka, J, Gonzalo, A Brossa, Brundu, D, Buchanan, E, Buchler-Germann, A, Buonaura, A, Burr, C, Bursche, A, Butkevich, A, Butter, JS, Buytaert, J, Byczynski, W, Cadeddu, S, Cai, H, Calabrese, R, Diaz, L Calero, Cali, S, Calladine, R, Calvi, M, Calvo Gomez, M, Magalhaes, P Camargo, Camboni, A, Campana, P, Perez, DH Campora, Quezada, AF Campoverde, Capriotti, L, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carli, I, Carniti, P, Akiba, K Carvalho, Casais Vidal, A, Casse, G, Cattaneo, M, Cavallero, G, Celani, S, Cenci, R, Cerasoli, J, Chapman, MG, Charles, M, Charpentier, Ph, Chatzikonstantinidis, G, Chefdeville, M, Chekalina, V, Chen, C, Chen, S, Chernov, A, Chitic, S-G, Chobanova, V, Cholak, S, Chrzaszcz, M, Chubykin, A, Ciambrone, P, Cicala, MF, Cid Vidal, X, Ciezarek, G, Cindolo, F, Clarke, PEL, Clemencic, M, Cliff, HV, Closier, J, Cobbledick, JL, Coco, V, Coelho, JAB, Cogan, J, Cogneras, E, Cojocariu, L, Collins, P, Colombo, T, Comerma-Montells, A, Contu, A, Cooke, N, Coombs, G, Coquereau, S, Corti, G, Sobral, CM Costa, Couturier, B, Craik, DC, Crkovska, J, Crocombe, A, Cruz Torres, M, Currie, R, Da Silva, CL, Dall'Occo, E, Dalseno, J, D'Ambrosio, C, Danilina, A, D'Argent, P, Davis, A, Francisco, O De Aguiar, De Bruyn, K, De Capua, S, De Cian, M, De Miranda, JM, De Paula, L, De Serio, M, De Simone, P, De Vries, JA, Dean, CT, Dean, W, Decamp, D, Del Buono, L, Delaney, B, Dembinski, H-P, Dendek, A, Denysenko, V, Derkach, D, Deschamps, O, Desse, F, Dettori, F, Dey, B, Di Canto, A, Di Nezza, P, Didenko, S, Dijkstra, H, Dobishuk, V, Dordei, F, Dorigo, M, Dos Reis, AC, Douglas, L, Dovbnya, A, Dreimanis, K, Dudek, MW, Dufour, L, Dujany, G, Durante, P, Durham, JM, Dutta, D, Dziewiecki, M, Dziurda, A, Dzyuba, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, Eisenhardt, S, Ekelhof, R, Ek-In, S, Eklund, L, Ely, S, Ene, A, Epple, E, Escher, S, Esen, S, Evans, T, Falabella, A, Fan, J, Farley, N, Farry, S, Fazzini, D, Fedin, P, Feo, M, Declara, P Fernandez, Fernandez Prieto, A, Ferrari, F, Lopes, L Ferreira, Ferreira Rodrigues, F, Sole, S Ferreres, Ferrillo, M, Ferro-Luzzi, M, Filippov, S, Fini, RA, Fiorini, M, Firlej, M, Fischer, KM, Fitzpatrick, C, Fiutowski, T, Fleuret, F, Fontana, M, Fontanelli, F, Forty, R, Lima, V Franco, Sevilla, M Franco, Frank, M, Frei, C, Friday, DA, Fu, J, Fuehring, Q, Funk, W, Gabriel, E, Gallas Torreira, A, Galli, D, Gallorini, S, Gambetta, S, Gan, Y, Gandelman, M, Gandini, P, Gao, Y, Garcia Martin, LM, Pardinas, J Garcia, Garcia Plana, B, Rosales, FA Garcia, Garrido, L, Gascon, D, Gaspar, C, Gerick, D, Gersabeck, E, Gersabeck, M, Gershon, T, Gerstel, D, Ghez, Ph, Gibson, V, Gioventu, A, Girard, OG, Gironella Gironell, P, Giubega, L, Giugliano, C, Gizdov, K, Gligorov, Gobel, C, Golobardes, E, Golubkov, D, Golutvin, A, Gomes, A, Gorbounov, P, Gorelov, Gotti, C, Govorkova, E, Grabowski, JP, Graciani Diaz, R, Grammatico, T, Cardoso, LA Granado, Grauges, E, Graverini, E, Graziani, G, Grecu, A, Greim, R, Griffith, P, Grillo, L, Gruber, L, Cazon, BR Gruberg, Gu, C, Unther, PAG, Gushchin, E, Guth, A, Guz, Yu, Gys, T, Hadavizadeh, T, Haefeli, G, Haen, C, Haines, SC, Hamilton, PM, Han, Q, Han, X, Hancock, TH, Hansmann-Menzemer, S, Harnew, N, Harrison, T, Hart, R, Hasse, C, Hatch, M, He, J, Hecker, M, Heijhoff, K, Heinicke, K, Hennequin, AM, Hennessy, K, Henry, L, Heuel, J, Hicheur, A, Hill, D, Hilton, M, Hopchev, PH, Hu, J, Hu, W, Huang, W, Hulsbergen, W, Humair, T, Hunter, RJ, Hushchyn, M, Hutchcroft, D, Hynds, D, Ibis, P, Idzik, M, Ilten, P, Inglessi, A, Ivshin, K, Jacobsson, R, Jakobsen, S, Jans, E, Jashal, BK, Jawahery, A, Jevtic, V, Jiang, F, John, M, Johnson, D, Jones, CR, Jost, B, Jurik, N, Kandybei, S, Karacson, M, Kariuki, JM, Kazeev, N, Kecke, M, Keizer, F, Kelsey, M, Kenzie, M, Ketel, T, Khanji, B, Kharisova, A, Kim, KE, Kirn, T, Kirsebom, VS, Klaver, S, Klimaszewski, K, Koliiev, S, Kondybayeva, A, Konoplyannikov, A, Kopciewicz, P, Kopecna, R, Koppenburg, P, Korolev, M, Kostiuk, I, Kot, O, Kotriakhova, S, Kravchuk, L, Krawczyk, RD, Kreps, M, Kress, F, Kretzschmar, S, Krokovny, P, Krupa, W, Krzemien, W, Kucewicz, W, Kucharczyk, M, Kudryavtsev, V, Kuindersma, HS, Kunde, GJ, Kvaratskheliya, T, Lacarrere, D, Lafferty, G, Lai, A, Lancierini, D, Lane, JJ, Lanfranchi, G, Langenbruch, C, Lantwin, O, Latham, T, Lazzari, F, Lazzeroni, C, Le Gac, R, Lefevre, R, Leflat, A, Leroy, O, Lesiak, T, Leverington, B, Li, H, Li, L, Li, X, Li, Y, Li, Z, Liang, X, Lindner, R, Lisovskyi, V, Liu, G, Liu, X, Loh, D, Loi, A, Lomba Castro, J, Longstaff, I, Lopes, JH, Loustau, G, Lovell, GH, Lu, Y, Lucchesi, D, Martinez, M Lucio, Luo, Y, Lupato, A, Luppi, E, Lupton, O, Lusiani, A, Lyu, X, Maccolini, S, Machefert, F, Maciuc, F, Macko, V, Mackowiak, P, Maddrell-Mander, S, Mohan, LR Madhan, Maev, O, Maevskiy, A, Maisuzenko, D, Majewski, MW, Malde, S, Malecki, B, Malinin, A, Maltsev, T, Malygina, H, Manca, G, Mancinelli, G, Manera Escalero, R, Manuzzi, D, Marangotto, D, Maratas, J, Marchand, JF, Marconi, U, Mariani, S, Benito, C Marin, Marinangeli, M, Marino, P, Marks, J, Marshall, PJ, Martellotti, G, Martinazzoli, L, Martinelli, M, Martinez Santos, D, Martinez Vidal, F, Massafferri, A, Materok, M, Matev, R, Mathad, A, Mathe, Z, Matiunin, V, Matteuzzi, C, Mattioli, KR, Mauri, A, Maurice, E, McCann, M, Mcconnell, L, McNab, A, McNulty, R, Mead, JV, Meadows, B, Meaux, C, Meier, G, Meinert, N, Melnychuk, D, Meloni, S, Merk, M, Merli, A, Mikhasenko, M, Milanes, DA, Millard, E, Minard, M-N, Mineev, O, Minzoni, L, Mitchell, SE, Mitreska, B, Mitzel, DS, Odden, AM, Mogini, A, Moise, RD, Acher, T Momb, Monroy, IA, Monteil, S, Morandin, M, Morello, G, Morello, MJ, Moron, J, Morris, AB, Morris, AG, Mountain, R, Mu, H, Muheim, F, Mukherjee, M, Mulder, M, Mueller, D, Mueller, K, Murphy, CH, Murray, D, Muzzetto, P, Naik, P, Nakada, T, Nandakumar, R, Nanut, T, Nasteva, I, Needham, M, Neri, N, Neubert, S, Neufeld, N, Newcombe, R, Nguyen, TD, Nguyen-Mau, C, Niel, EM, Nieswand, S, Nikitin, N, Nolte, NS, Nunez, C, Oblakowska-Mucha, A, Obraztsov, V, Ogilvy, S, O'Hanlon, DP, Oldeman, R, Onderwater, CJG, Osborn, JD, Ossowska, A, Otalora Goicochea, JM, Ovsiannikova, T, Owen, P, Oyanguren, A, Pais, PR, Pajero, T, Palano, A, Palutan, M, Panshin, G, Papanestis, A, Pappagallo, M, Pappalardo, LL, Pappenheimer, C, Parker, W, Parkes, C, Passaleva, G, Pastore, A, Patel, M, Patrignani, C, Pearce, A, Pellegrino, A, Altarelli, M Pepe, Perazzini, S, Pereima, D, Perret, P, Pescatore, L, Petridis, K, Petrolini, A, Petrov, A, Petrucci, S, Petruzzo, M, Pietrzyk, B, Pietrzyk, G, Pili, M, Pinci, D, Pinzino, J, Pisani, F, Piucci, A, Placinta, V, Playfer, S, Plews, J, Plo Casasus, M, Polci, F, Lener, M Poli, Poliakova, M, Poluektov, A, Polukhina, N, Polyakov, I, Polycarpo, E, Pomery, GJ, Ponce, S, Popov, A, Popov, D, Poslavskii, S, Prasanth, K, Promberger, L, Prouve, C, Pugatch, V, Navarro, A Puig, Pullen, H, Punzi, G, Qian, W, Qin, J, Quagliani, R, Quintana, B, Raab, NV, Trejo, RI Rabadan, Rachwal, B, Rademacker, JH, Rama, M, Ramos Pernas, M, Rangel, MS, Ratnikov, F, Raven, G, Reboud, M, Redi, F, Reiss, F, Remon Alepuz, C, Ren, Z, Renaudin, V, Ricciardi, S, Richards, DS, Richards, S, Rinnert, K, Robbe, P, Robert, A, Rodrigues, AB, Rodrigues, E, Rodriguez Lopez, JA, Roehrken, M, Roiser, S, Rollings, A, Romanovskiy, V, Romero Lamas, M, Romero Vidal, A, Roth, JD, Rotondo, M, Rudolph, MS, Ruf, T, Ruiz Vidal, J, Ryzhikov, A, Ryzka, J, Saborido Silva, JJ, Sagidova, N, Sahoo, N, Saitta, B, Gras, C Sanchez, Sanchez Mayordomo, C, Santacesaria, R, Santamarina Rios, C, Santimaria, M, Santovetti, E, Sarpis, G, Sarti, A, Satriano, C, Satta, A, Saur, M, Savrina, D, Smead, LG Scantlebury, Schael, S, Schellenberg, M, Schiller, M, Schindler, H, Schmelling, M, Schmelzer, T, Schmidt, B, Schneider, O, Schopper, A, Schreiner, HF, Schubiger, M, Schulte, S, Schune, MH, Schwemmer, R, Sciascia, B, Sciubba, A, Sellam, S, Semennikov, A, Sergi, A, Serra, N, Serrano, J, Sestini, L, Seuthe, A, Seyfert, P, Shangase, DM, Shapkin, M, Shchutska, L, Shears, T, Shekhtman, L, Shevchenko, V, Shmanin, E, Shupperd, JD, Siddi, BG, Coutinho, R Silva, Silva De Oliveira, L, Simi, G, Simone, S, Skiba, I, Skidmore, N, Skwarnicki, T, Slater, MW, Smeaton, JG, Smetkina, A, Smith, E, Smith, IT, Smith, M, Snoch, A, Soares, M, Lavra, L Soares, Sokoloff, MD, Soler, FJP, Souza De Paula, B, Spaan, B, Norella, E Spadaro, Spradlin, P, Stagni, F, Stahl, M, Stahl, S, Stefko, P, Steinkamp, O, Stemmle, S, Stenyakin, O, Stepanova, M, Stevens, H, Stone, S, Stracka, S, Stramaglia, ME, Straticiuc, M, Strokov, S, Sun, J, Sun, L, Sun, Y, Svihra, P, Swientek, K, Szabelski, A, Szumlak, T, Szymanski, M, Taneja, S, Tang, Z, Tekampe, T, Teubert, F, Thomas, E, Thomson, KA, Tilley, MJ, Tisserand, V, TJampens, S, Tobin, M, Tolk, S, Tomassetti, L, Tonelli, D, Torres Machado, D, Tou, DY, Tournefier, E, Traill, M, Tran, MT, Trifonova, E, Trippl, C, Trisovic, A, Tsaregorodtsev, A, Tuci, G, Tully, A, Tuning, N, Ukleja, A, Usachov, A, Ustyuzhanin, A, Uwer, U, Vagner, A, Vagnoni, V, Valassi, A, Valenti, G, Van Beuzekom, M, Van Hecke, H, Van Herwijnen, E, Van Hulse, CB, Van Veghel, M, Vazquez Gomez, R, Vazquez Regueiro, P, Sierra, CV Azquez, Vecchi, S, Velthuis, JJ, Veltri, M, Venkateswaran, A, Vernet, M, Veronesi, M, Vesterinen, M, Barbosa, JV Viana, Vieira, D, Diaz, M Vieites, Viemann, H, Vilasis-Cardona, X, Vitkovskiy, A, Vollhardt, A, Vom Bruch, D, Vorobyev, A, Vorobyev, V, Voropaev, N, Waldi, R, Walsh, J, Wang, J, Wang, M, Wang, Y, Wang, Z, Ward, DR, Wark, HM, Watson, NK, Websdale, D, Weiden, A, Weisser, C, Westhenry, BDC, White, DJ, Whitehead, M, Wiedner, D, Wilkinson, G, Wilkinson, M, Williams, I, Williams, M, Williams, MRJ, Williams, T, Wilson, FF, Wislicki, W, Witek, M, Witola, L, Wormser, G, Wotton, SA, Wu, H, Wyllie, K, Xiang, Z, Xiao, D, Xie, Y, Xing, H, Xu, A, Xu, L, Xu, M, Xu, Q, Xu, Z, Yang, Z, Yao, Y, Yeomans, LE, Yin, H, Yu, J, Yuan, X, Yushchenko, O, Zarebski, KA, Zavertyaev, M, Zdybal, M, Zeng, M, Zhang, D, Zhang, L, Zhang, S, Zhang, WC, Zhang, Y, Zhelezov, A, Zheng, Y, Zhou, X, Zhou, Y, Zhu, X, Zhukov, V, Zonneveld, JB, and Zucchelli, S
Subjects: Flavor physics, CP violation, Hadron-Hadron scattering (experiments), CKM angle gamma, B physics
Abstract: Measurements of $CP$ observables in $B^\pm \to D K^\pm$ and $B^\pm \to D \pi^\pm$ decays are presented, where $D$ represents a superposition of $D^0$ and $\bar{D}^0$ states. The $D$ meson is reconstructed in the three-body final state $K_{\rm{S}}^0K^\pm \pi^\mp$. The analysis uses samples of $B$ mesons produced in proton-proton collisions, corresponding to an integrated luminosity of 1.0, 2.0, and 6.0 fb$^{-1}$ collected with the LHCb detector at centre-of-mass energies of $\sqrt{s} = $ 7, 8, and 13 TeV, respectively. These measurements are the most precise to date, and provide important input for the determination of the CKM angle $\gamma$.
Published: 2021
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15. Measurement of the CKM angle γ in B ± → DK ± and B ± → Dπ ± decays with D → K S 0 h + h −

Author: Aaij, R., Abellán Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., 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., Amato, S., Amhis, Y., An, L., Anderlini, L., 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., Baker, S., Baladron Rodriguez, P., Balagura, V., Baldini, W., Baptista Leite, J., Barlow, R. J., Barsuk, S., Barter, W., Bartolini, M., Baryshnikov, F., Basels, J. M., Bassi, G., Batsukh, B., Battig, A., Bay, 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., Bertholet, E., Bertolin, A., Betancourt, C., Betti, F., Bettler, M. O., Bezshyiko, Ia., Bhasin, S., Bhom, J., Bian, L., Bieker, M. S., Bifani, S., Billoir, P., Birch, M., Bishop, F. C. R., Bizzeti, A., Bjørn, M., Blago, M. P., Blake, T., Blanc, F., Blusk, S., Bobulska, D., Bocci, V., 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., Brodski, M., Brodzicka, J., Brossa Gonzalo, A., Brundu, D., Buonaura, A., Burr, C., Bursche, A., Butkevich, A., Butter, J. S., Buytaert, J., Byczynski, W., Cadeddu, S., Cai, H., Calabrese, R., Calefice, L., Calero Diaz, L., Cali, S., Calladine, R., Calvi, M., Calvo Gomez, M., Camargo Magalhaes, P., Camboni, A., 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., Carvalho Akiba, K., Casais Vidal, A., Casse, G., Cattaneo, M., Cavallero, G., Celani, S., Cerasoli, J., Chadwick, A. J., Chapman, M. G., Charles, M., Charpentier, Ph., Chatzikonstantinidis, G., Chavez Barajas, C. A., Chefdeville, M., Chen, C., Chen, S., Chernov, A., Chitic, S.-G., 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., Corti, G., Costa Sobral, C. M., Couturier, B., Craik, D. C., Crkovská, J., Cruz Torres, M., Currie, R., Da Silva, C. L., Dall’Occo, E., Dalseno, J., D’Ambrosio, C., Danilina, A., D’Argent, P., Davis, A., De Aguiar Francisco, O., De Bruyn, K., De Capua, S., De Cian, M., De Miranda, J. M., De Paula, L., De Serio, M., De Simone, D., De Simone, P., De Vries, J. A., Dean, C. T., Dean, W., Decamp, D., Del Buono, L., Delaney, B., Dembinski, H.-P., Dendek, A., Denysenko, V., Derkach, D., Deschamps, O., Desse, F., Dettori, F., Dey, B., Di Nezza, P., Didenko, S., Dieste Maronas, L., Dijkstra, H., Dobishuk, V., Donohoe, A. M., Dordei, F., Dorigo, M., Dos Reis, A. C., Douglas, L., Dovbnya, A., Downes, A. G., Dreimanis, K., Dudek, M. W., Dufour, L., Duk, V., Durante, P., Durham, J. M., Dutta, D., Dziewiecki, M., 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., Falabella, A., Fan, J., Fan, Y., Fang, B., Farley, N., Farry, S., Fazzini, D., Fedin, P., Féo, M., Fernandez Declara, P., Fernandez Prieto, A., Fernandez-Tenllado Arribas, J. M., 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., Fitzpatrick, C., Fiutowski, T., Fleuret, F., Fontana, M., Fontanelli, F., Forty, R., Franco Lima, V., Franco Sevilla, M., Frank, M., Franzoso, E., Frau, G., Frei, C., Friday, D. A., Fu, J., Fuehring, Q., Funk, W., Gabriel, E., Gaintseva, T., Gallas Torreira, A., Galli, D., Gallorini, S., 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., Gascon, D., Gaspar, C., Geertsema, R. E., Gerick, D., Gerken, L. L., Gersabeck, E., Gersabeck, M., Gershon, T., Gerstel, D., Ghez, Ph., Gibson, V., Giovannetti, M., Gioventù, A., Gironella Gironell, P., Giubega, L., 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., Gorbounov, P., Gorelov, I. V., Gotti, C., Govorkova, E., Grabowski, J. P., Graciani Diaz, R., Grammatico, T., Granado Cardoso, L. A., Graugés, E., Graverini, E., Graziani, G., Grecu, A., Greeven, L. M., Griffith, P., Grillo, L., Gromov, S., Gruber, L., Gruberg Cazon, B. R., Gu, C., Guarise, 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., Hamilton, P. M., Han, Q., Han, X., Hancock, T. H., Hansmann-Menzemer, S., Harnew, N., Harrison, T., Hasse, C., Hatch, M., He, J., Hecker, M., Heijhoff, K., Heinicke, K., Hennequin, A. M., Hennessy, K., Henry, L., Heuel, J., Hicheur, A., Hill, D., Hilton, M., Hollitt, S. E., Hopchev, P. H., Hu, J., Hu, W., 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., Jakobsen, S., Jans, E., Jashal, B. K., Jawahery, A., Jevtic, V., Jezabek, M., Jiang, F., John, M., Johnson, D., Jones, C. R., Jones, T. P., Jost, B., Jurik, N., Kandybei, S., Kang, Y., Karacson, M., Kariuki, J. M., Kazeev, N., Kecke, M., Keizer, F., Kenzie, M., Ketel, T., Khanji, B., Kharisova, A., Kholodenko, S., Kim, K. E., Kirn, T., Kirsebom, V. 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Subjects: Flavor physics, CP violation, Regular Article - Experimental Physics, Hadron-Hadron scattering (experiments), High Energy Physics::Experiment, CKM angle gamma, B physics
Abstract: A measurement of CP-violating observables is performed using the decays B± → DK± and B± → Dπ±, where the D meson is reconstructed in one of the self-conjugate three-body final states KS0π+π− and KS0K+K− (commonly denoted KS0h+h−). The decays are analysed in bins of the D-decay phase space, leading to a measurement that is independent of the modelling of the D-decay amplitude. The observables are inter- preted in terms of the CKM angle γ. Using a data sample corresponding to an integrated luminosity of 9 fb−1 collected in proton-proton collisions at centre-of mass energies of 7, 8, and 13 TeV with the LHCb experiment, γ is measured to be 68.7−5.1+5.2°. The hadronic parameters rBDK, rBDπ, δBDK, andδBDπ, which are the ratios and strong-phase differences of the suppressed and favoured B± decays, are also reported.
Published: 2021
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16. Measurement of branching fraction ratios for B+ -> D+D-K+, B+ -> D-D+K+, and B-0 -> (D*-DK+)-K-0 decays

Author: Aaij, R., Beteta, C. Abellan, Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., Aidala, C. A., Aiola, S., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Albero, A. Alfonso, Aliouche, Z., Alkhazov, G., Cartelle, P. Alvarez, Alves A. A., Jr., Amato, S., Amhis, Y., An, L., Anderlini, L., Andreassi, G., 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., Baker, S., Baladron Rodriguez, P., Balagura, V, Baldini, W., Leite, J. Baptista, Barlow, R. J., Barsuk, S., Barter, W., Bartolini, M., Baryshnikov, F., Basels, J. M., Bassi, G., Batozskaya, V, Batsukh, B., Battig, A., Bay, 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., Benson, S., Berezhnoy, A., Bernet, R., Berninghoff, D., Bernstein, H. 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R., Pajero, T., Palano, A., Palutan, M., Pan, Y., Panshin, G., Papanestis, A., Pappagallo, M., Pappalardo, L. L., Pappenheimer, C., Parker, W., Parkes, C., Parkinson, C. J., Passalacqua, B., Passaleva, G., Pastore, A., Patel, M., Patrignani, C., Pawley, C. J., Pearce, A., Pellegrino, A., Altarelli, M. Pepe, Perazzini, S., Pereima, D., Perret, P., Petridis, K., Petrolini, A., Petrov, A., Petrucci, S., Petruzzo, M., Philippov, A., Pica, L., Piccini, M., Pietrzyk, B., Pietrzyk, G., Pili, M., Pinci, D., Pinzino, J., Pisani, F., Piucci, A., Resmi, P. K., Placinta, V, Playfer, S., Plews, J., Casasus, M. Plo, Polci, F., Lener, M. Poli, Poliakova, M., Poluektov, A., Polukhina, N., Polyakov, I, Polycarpo, E., Pomery, G. J., Ponce, S., Popov, A., Popov, D., Popov, S., Poslavskii, S., Prasanth, K., Promberger, L., Prouve, C., Pugatch, V, Navarro, A. Puig, Pullen, H., Punzi, G., Qian, W., Qin, J., Quagliani, R., Quintana, B., Raab, N., Trejo, R. I. Rabadan, Rachwal, B., Rademacker, J. H., 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, Ribatti, R., Ricciardi, S., Richards, D. S., Richards, S., Rinnert, K., Robbe, P., Robert, A., Robertson, G., Rodrigues, A. B., Rodrigues, E., Lopez, J. A. Rodriguez, Roehrken, M., Rollings, A., Roloff, P., Romanovskiy, V, Romero Lamas, M., Romero Vidal, A., Roth, J. D., Rotondo, M., Rudolph, M. S., Ruf, T., Vidal, J. Ruiz, Ryzhikov, A., Ryzka, J., Saborido Silva, J. J., Sagidova, N., Sahoo, N., Saitta, B., Gras, C. Sanchez, Sanchez Mayordomo, 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., Smead, L. G. Scantlebury, Schael, S., Schellenberg, M., Schiller, M., Schindler, H., Schmelling, M., Schmelzer, T., Schmidt, B., Schneider, O., Schopper, A., Schreiner, H. F., Schubiger, M., Schulte, S., Schune, M. H., Schwemmer, R., Sciascia, B., Sciubba, A., Sellam, S., Semennikov, A., Soares, M. Senghi, Sergi, A., Serra, N., Serrano, J., Sestini, L., Seuthe, A., Seyfert, P., Shangase, D. M., Shapkin, M., Shchemerov, I, Shchutska, L., Shears, T., Shekhtman, L., Shen, Z., Shevchenko, V, Shields, E. B., Shmanin, E., Shupperd, J. D., Siddi, B. G., Coutinho, R. Silva, de Oliveira, L. Silva, Simi, G., Simone, S., Skiba, I, Skidmore, N., Skwarnicki, T., Slater, M. W., Smallwood, J. C., Smeaton, J. G., Smetkina, A., Smith, E., Smith, I. T., Smith, M., Snoch, A., Soares, M., Lavra, L. Soare, Sokoloff, M. D., Soler, F. J. P., Solovev, A., Solovyev, I, De Almeida, F. L. Souza, De Paula, B. Souza, Spaan, B., Norella, E. Spadaro, Spradlin, P., Stagni, F., Stahl, M., Stahl, S., Stefko, P., Steinkamp, O., Stemmle, S., Stenyakin, O., Stepanova, M., Stevens, H., Stone, S., Stramaglia, M. E., Straticiuc, M., Strekalina, D., Strokov, S., Suljik, F., Sun, J., Sun, L., Sun, Y., Svihra, P., Swallow, P. N., Swientek, K., Szabelski, A., Szumlak, T., Szymanski, M., Taneja, S., Tang, Z., Tekampe, T., Teubert, F., Thomas, E., Thomson, K. A., Tilley, M. J., Tisserand, V, T'Jampens, S., Tobin, M., Tolk, S., Tomassetti, L., Machado, D. Torre, Tou, D. Y., Tournefier, E., Traill, M., Tran, M. T., Trifonova, E., Trippl, C., Tsaregorodtsev, A., 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., Canudas, N. Vall, van Beuzekom, M., Van Hecke, H., van Herwijnen, E., Van Hulse, C. B., van Veghel, M., Vazquez Gomez, R., Vazquez Regueiro, P., Sierra, C. Vazquez, Vecchi, S., Velthuis, J. J., Veltri, M., Venkateswaran, A., Veronesi, M., Vesterinen, M., Barbosa, J. V. Viana, Vieira, D., Diaz, M. Vieite, Viemann, H., Vilasis-Cardona, X., Figueras, E. Vilella, Vincent, P., Vitali, G., Vitkovskiy, A., Vollhardt, A., Vom Bruch, D., Vorobyev, A., Vorobyev, V., Voropaev, N., Waldi, R., Walsh, J., Wang, C., Wang, J., Wang, M., Wang, R., Wang, Y., Wang, Z., Ward, D. R., Wark, H. M., Watson, N. K., Weber, S. G., Websdale, D., Weiden, A., Weisser, C., Westhenry, B. D. C., White, D. J., Whitehead, M., Wiedner, D., Wilkinson, G., Wilkinson, M., Williams, I, Williams, M., Williams, M. R. J., Williams, T., Wilson, F. F., Wislicki, W., Witek, M., Witola, L., Wormser, G., Wotton, S. A., Wu, H., Wyllie, K., Xiang, Z., Xiao, D., Xie, Y., Xing, H., Xu, A., Xu, J., Xu, L., Xu, M., Xu, Q., Xu, Z., Yang, D., Yang, Y., Yang, Z., Yang, Yao, Y., Yeomans, L. E., Yin, H., Yu, J., Yuan, X., Yushchenko, O., Zarebski, K. A., Zavertyaev, M., Zdybal, M., Zenaiev, O., Zeng, M., Zhang, D., Zhang, L., Zhang, S., Zhang, Y., Zhelezov, A., Zheng, Y., Zhou, X., Zhou, Y., Zhu, X., Zhukov, V, Zonneveld, J. B., Zucchelli, S., Zuliani, D., and Zunica, G.
Subjects: Flavor physics, B physic, Hadron-Hadron scattering (experiments), Flavor physic, Settore FIS/01 - Fisica Sperimentale, Branching fraction, B physics
Abstract: A measurement of four branching-fraction ratios for three-body decays of $B$ mesons involving two open-charm hadrons in the final state is presented. Run 1 and Run 2 $pp$ collision data are used, recorded by the LHCb experiment at centre-of-mass energies $7$, $8$, and $13$ TeV and corresponding to an integrated luminosity of $9$ fb$^{-1}$. The measured branching-fraction ratios are \[ \begin{eqnarray} \frac{\mathcal{B} (B^+\to D^{*+}D^-K^+)}{\mathcal{B} (B^+\to \kern 0.2em\overline{\kern -0.2em D}{}^0 D^0 K^+)} &=& 0.517 \pm 0.015 \pm 0.013 \pm 0.011 , \\ \frac{\mathcal{B} (B^+\to D^{*-}D^+K^+)}{\mathcal{B} (B^+\to \kern 0.2em\overline{\kern -0.2em D}{}^0 D^0 K^+)} &=& 0.577 \pm 0.016 \pm 0.013 \pm 0.013 , \\ \frac{\mathcal{B} (B^0\to D^{*-}D^0K^+)}{\mathcal{B} (B^0\to D^- D^0 K^+)} &=& 1.754 \pm 0.028 \pm 0.016 \pm 0.035 , \\ \frac{\mathcal{B} (B^+\to D^{*+}D^-K^+)}{\mathcal{B} (B^+\to D^{*-}D^+K^+)} &=& 0.907 \pm 0.033 \pm 0.014 ,\end{eqnarray} \] where the first of the uncertainties is statistical, the second systematic, and the third is due to the uncertainties on the $D$-meson branching fractions. These are the most accurate measurements of these ratios to date.
Published: 2021
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17. Measurement of the shape of the Bs0→Ds∗−μ+νμ differential decay rate

Author: Aaij, R, Abellán Beteta, C, Ackernley, T, Adeva, B, Adinolfi, M, Afsharnia, H, Aidala, CA, Aiola, S, Ajaltouni, Z, Akar, S, Albicocco, P, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Aliouche, Z, Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreianov, A, Andreotti, M, Archilli, F, Artamonov, A, Artuso, M, Arzymatov, K, Aslanides, E, Atzeni, M, Audurier, B, Bachmann, S, Bachmayer, M, Back, JJ, Baker, S, Baladron Rodriguez, P, Balagura, V, Baldini, W, Baptista Leite, J, Baranov, A, Barlow, RJ, Barsuk, S, Barter, W, Bartolini, M, Baryshnikov, F, Basels, JM, Bassi, G, Batozskaya, V, Batsukh, B, Battig, A, Bay, A, Becker, M, Bedeschi, F, Bediaga, I, Beiter, A, Bel, LJ, Belavin, V, Belin, S, Bellee, V, Belous, K, Belyaev, I, Bencivenni, G, Ben-Haim, E, Benson, S, Beranek, S, Berezhnoy, A, Bernet, R, Berninghoff, D, Bernstein, HC, Bertella, C, Bertholet, E, Bertolin, A, Betancourt, C, Betti, F, Bettler, MO, Bezshyiko, I, Bhasin, S, Bhom, J, Bian, L, Bieker, MS, Bifani, S, Billoir, P, Bishop, FCR, Bizzeti, A, Bjørn, M, Blago, MP, Blake, T, Blanc, F, Blusk, S, Bobulska, D, Bocci, V, Boelhauve, JA, Boente Garcia, O, Boettcher, T, Boldyrev, A, Bondar, A, Bondar, N, Borghi, S, and Apollo - University of Cambridge Repository
Subjects: Flavor physics, Hadron-Hadron scattering (experiments), High Energy Physics::Lattice, High Energy Physics::Phenomenology, High Energy Physics::Experiment, B physics
Abstract: The shape of the $B_s^0\rightarrow D_s^{*-}\mu^+\nu_{\mu}$ differential decay rate is obtained as a function of the hadron recoil using proton-proton collision data at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 1.7 fb$^{-1}$ collected by the LHCb detector. The $B_s^0\rightarrow D_s^{*-}\mu^+\nu_{\mu}$ decay is reconstructed through the decays $D_s^{*-}\rightarrow D_s^{-}\gamma$ and $D_s^{-}\rightarrow K^-K^+\pi^-$. The differential decay rate is fitted with the Caprini-Lellouch-Neubert (CLN) and Boyd-Grinstein-Lebed (BGL) parametrisations of the form factors, and the relevant quantities for both are extracted.
Published: 2021
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18. Development of tools for Bayesian data analysis and their application in the search for physics beyond the Standard Model

Author: Grunwald, Cornelius, Kröninger, Kevin, and Caldwell, Allen
Subjects: Top-quark physics, Effective field theory, Bayes-Verfahren, Elementarteilchen, Feldtheorie, Physics beyond the Standard Model, Quarkmodell, Bayesian data analysis, t-Quark, Bayesian analysis toolkit (BAT), Flavor physics, SMEFT, EFTfitter, Flavour
Abstract: In this thesis, methods for Bayesian data analysis are employed in the search for physics beyond the Standard Model (BSM). A new implementation of the Bayesian Analysis Toolkit in Julia (BAT.jl) is introduced as a modern data analysis framework providing algorithms for Bayesian inference. The EFTfitter.jl package for interpreting measurements in the context of effective field theories (EFTs) is presented. It facilitates combining measurements and estimating underlying parameters with Bayesian inference. Both tools are employed for indirect BSM searches using EFTs. Wilson coefficients of dimension-six operators from the top-quark sector of the Standard Model effective field theory (SMEFT) are constrained, and approaches for enhancing fits of SMEFT coefficients are investigated. Studies on the effects of correlations between the uncertainties of measurements on the results of SMEFT fits are conducted. It is demonstrated that the correlations can significantly impact the resulting constraints and can be the crucial components deciding whether deviations from the Standard Model of particle physics are observed or not, in particular when assuming future measurements with reduced uncertainties. Moreover, studies on combining measurements of top-quark and flavor physics observables for SMEFT interpretations are performed, and the steps necessary for a combined fit are discussed. Powerful synergies between top-quark processes and b �� s transitions are observed when constraining SMEFT Wilson coefficients of the top-quark sector. It is demonstrated that due to complementary sensitivities, combining observables from different energy scales can tighten the constraints significantly. Future scenarios assuming measurements from HL-LHC, Belle II, and CLIC are investigated, and their potential for improving constraints on up to eleven SMEFT Wilson coefficients is pointed out. The benefits of orthogonal constraints in multidimensional phase spaces for resolving ambiguous solutions are highlighted. The SMEFT studies presented in this thesis demonstrate the capabilities of the new BAT.jl and EFTfitter.jl packages for BSM analyses.
Published: 2021

19. Angular analysis of the rare decay Bs0 → ϕμ + μ −

Author: Aaij, R, Abdelmotteleb, ASW, Abellán Beteta, C, Ackernley, T, Adeva, B, Adinolfi, M, Afsharnia, H, Agapopoulou, C, Aidala, CA, Aiola, S, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Aliouche, Z, Alkhazov, G, Alvarez Cartelle, P, Amato, S, Amey, JL, Amhis, Y, An, L, Anderlini, L, Andreianov, A, Andreotti, M, Archilli, F, Artamonov, A, Artuso, M, Arzymatov, K, Aslanides, E, Atzeni, M, Audurier, B, Bachmann, S, Bachmayer, M, Back, JJ, Baladron Rodriguez, P, Balagura, V, Baldini, W, Baptista Leite, J, Barbetti, M, Barlow, RJ, Barsuk, S, Barter, W, Bartolini, M, Baryshnikov, F, Basels, JM, 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, HC, Bertella, C, Bertolin, A, Betancourt, C, Betti, F, Bezshyiko, I, Bhasin, S, Bhom, J, Bian, L, Bieker, MS, Bifani, S, Billoir, P, Birch, M, Bishop, FCR, Bitadze, A, Bizzeti, A, Bjørn, M, Blago, MP, Blake, T, Blanc, F, Blusk, S, Bobulska, D, Boelhauve, JA, Boente Garcia, O, Boettcher, T, Boldyrev, A, Bondar, A, Bondar, N, Borghi, S, Borisyak, M, Borsato, M, Borsuk, JT, Alvarez Cartelle, Paula [0000-0003-1652-2834], and Apollo - University of Cambridge Repository
Subjects: FCNC Interaction, Flavor physics, Rare decay, Hadron-Hadron scattering (experiments), High Energy Physics::Experiment, Nuclear Experiment, B physics
Abstract: An angular analysis of the rare decay $B^0_s\rightarrow\phi\mu^+\mu^-$ is presented, using proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of $7$, $8$ and $13~\rm{TeV}$, corresponding to an integrated luminosity of $8.4~\rm{fb}^{-1}$. The observables describing the angular distributions of the decay $B^0_s\rightarrow\phi\mu^+\mu^-$ are determined in regions of $q^2$, the square of the dimuon invariant mass. The results are consistent with Standard Model predictions.
Published: 2021

20. Observation of CP violation in two-body B(s)0 -meson decays to charged pions and kaons

Author: Aaij, R, Abellán Beteta, C, Ackernley, T, Adeva, B, Adinolfi, M, Afsharnia, H, Aidala, CA, Aiola, S, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Aliouche, Z, Alkhazov, G, Alvarez Cartelle, P, Amato, S, Amhis, Y, An, L, Anderlini, L, Andreianov, A, Andreotti, M, Archilli, F, Artamonov, A, Artuso, M, Arzymatov, K, Aslanides, E, Atzeni, M, Audurier, B, Bachmann, S, Bachmayer, M, Back, JJ, Baker, S, Baladron Rodriguez, P, Balagura, V, Baldini, W, Baptista Leite, J, Barlow, RJ, Barsuk, S, Barter, W, Bartolini, M, Baryshnikov, F, Basels, JM, Bassi, G, Batsukh, B, Battig, A, Bay, 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, HC, Bertella, C, Bertholet, E, Bertolin, A, Betancourt, C, Betti, F, Bettler, MO, Bezshyiko, I, Bhasin, S, Bhom, J, Bian, L, Bieker, MS, Bifani, S, Billoir, P, Birch, M, Bishop, FCR, Bizzeti, A, Bjørn, M, Blago, MP, Blake, T, Blanc, F, Blusk, S, Bobulska, D, Boelhauve, JA, Boente Garcia, O, Boettcher, T, Boldyrev, A, Bondar, A, Bondar, N, Borghi, S, Borisyak, M, Borsato, M, Borsuk, JT, Bouchiba, SA, Bowcock, TJV, Boyer, A, Bozzi, C, Alvarez Cartelle, Paula [0000-0003-1652-2834], and Apollo - University of Cambridge Repository
Subjects: Flavor physics, Oscillation, CP violation, Regular Article - Experimental Physics, Hadron-Hadron scattering (experiments), B physics
Abstract: The time-dependent $CP$ asymmetries of $B^0\to \pi^+\pi^-$ and $B^0_\mathrm{s}\!\to K^+K^-$ decays are measured using a data sample of $pp$ collisions corresponding to an integrated luminosity of 1.9 fb$^{-1}$, collected with the LHCb detector at a centre-of-mass energy of 13 TeV. The results are \begin{eqnarray*} C_{\pi\pi} & = & -0.311 \pm 0.045 \pm 0.015, \\ S_{\pi\pi} & = & -0.706 \pm 0.042 \pm 0.013, \\ C_{KK} & = & \phantom{-}0.164 \pm 0.034 \pm 0.014, \\ S_{KK} & = & \phantom{-}0.123 \pm 0.034 \pm 0.015, \\ \cal {A}^{\mathrm{\Delta\Gamma}}_{\mathit{KK}} & = & -0.83\phantom{0} \pm 0.05\phantom{0} \pm 0.09, \end{eqnarray*} where the first uncertainties are statistical and the second systematic. The same data sample is used to measure the time-integrated $CP$ asymmetries of $B^0\to K^+\pi^-$ and $B^0_\mathrm{s}\to K^-\pi^+$ decays and the results are \begin{eqnarray*} A_{CP}^{B^0} & = & -0.0824 \pm 0.0033 \pm 0.0033, \\ A_{CP}^{B^0_\mathrm{s}} & = & \phantom{-}0.236\phantom{0} \pm 0.013\phantom{0} \pm 0.011. \end{eqnarray*} All results are consistent with earlier measurements. A combination of LHCb measurements provides the first observation of time-dependent $CP$ violation in $B^0_\mathrm{s}$ decays.
Published: 2021

21. Resolving the LMA-dark NSI degeneracy with coherent neutrino-nucleus scattering

Author: Chaves, Mariano Esteves, 1993 and UNIVERSIDADE ESTADUAL DE CAMPINAS
Subjects: Detectores de neutrinos, Flavor physics, Electroweak interactions, Artigo original, Interações eletro-fracas, Partículas (Física nuclear) - Sabor, Particles (Nuclear physics) - Flavor, Neutrinos detectors, Neutrino detectors and telescopes (Experiments), Física além do modelo padrão, Physics beyond the standard model
Abstract: Agradecimentos: We thank the authors of ref. [33] for providing ?2 -tables from their updated global oscillation analysis. This project has received support from the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No. 860881-HIDDeN. This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brasil (CAPES) - Finance Code 001. MEC is grateful for the 140564/2018-7 funding from CNPQ Abstract: In the presence of non-standard neutrino interactions (NSI), a degeneracy exists in neutrino oscillation data, which involves the flipping of the octant of the mixing angle theta (12) and the type of the neutrino mass ordering. In this article, we revisit the status of this degeneracy in the light of recent data on coherent elastic neutrino-nucleus scattering (CE nu NS) from the COHERENT experiment. For general relative couplings to up and down quarks, the degeneracy is disfavoured at the 2 sigma level by the latest data but remains at a higher confidence level. We investigate the requirements of future CE nu NS measurements to resolve the degeneracy with high significance. We find that a measurement involving both, electron and muon neutrino flavours and a target with a neutron-to-proton ratio close to 1 is required. For example, an experiment with a silicon target at the European Spallation Source can resolve the degeneracy at more than 4 sigma for arbitrary relative couplings to up and down quarks COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPES CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQ Aberto
Published: 2021

22. Measurement of the shape of the B s 0 → D s ∗ − μ + ν μ differential decay rate

Author: Aaij, R., Abellán Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., Aidala, C. A., Aiola, S., Ajaltouni, Z., Akar, S., Albicocco, P., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Aliouche, Z., Alkhazov, G., Alvarez Cartelle, P., Alves, A. A., Amato, S., Amhis, Y., An, L., Anderlini, L., Andreassi, G., 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., Baker, S., Baladron Rodriguez, P., Balagura, V., Baldini, W., Baptista Leite, J., Baranov, A., Barlow, R. J., Barsuk, S., Barter, W., Bartolini, M., Baryshnikov, F., Basels, J. M., Bassi, G., Batozskaya, V., Batsukh, B., Battig, A., Bay, A., Becker, M., Bedeschi, F., Bediaga, I., Beiter, A., Bel, L. J., Belavin, V., Belin, S., Bellee, V., Belous, K., Belyaev, I., Bencivenni, G., Ben-Haim, E., Benson, S., Beranek, S., Berezhnoy, A., Bernet, R., Berninghoff, D., Bernstein, H. C., Bertella, C., Bertholet, E., Bertolin, A., Betancourt, C., Betti, F., Bettler, M. O., Bezshyiko, Ia., Bhasin, S., Bhom, J., Bian, L., Bieker, M. S., Bifani, S., Billoir, P., Bishop, F. C. R., Bizzeti, A., Bjørn, M., Blago, M. P., Blake, T., Blanc, F., Blusk, S., Bobulska, D., Bocci, V., 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., Brodski, M., Brodzicka, J., Brossa Gonzalo, A., Brundu, D., Buchanan, E., Büchler-Germann, A., Buonaura, A., Burr, C., Bursche, A., Butkevich, A., Butter, J. S., Buytaert, J., Byczynski, W., Cadeddu, S., Cai, H., Calabrese, R., Calero Diaz, L., Cali, S., Calladine, R., Calvi, M., Calvo Gomez, M., Camargo Magalhaes, P., Camboni, A., 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., Carvalho Akiba, K., Casais Vidal, A., Casse, G., Cattaneo, M., Cavallero, G., Celani, S., Cenci, R., Cerasoli, J., Chadwick, A. J., Chapman, M. G., Charles, M., Charpentier, Ph., Chatzikonstantinidis, G., Chefdeville, M., Chekalina, V., Chen, C., Chen, S., Chernov, A., Chitic, S.-G., 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., Comerma-Montells, A., Contu, A., Cooke, N., Coombs, G., Coquereau, S., Corti, G., Costa Sobral, C. M., Couturier, B., Craik, D. C., Crkovská, J., Crocombe, A., Cruz Torres, M., Currie, R., Da Silva, C. L., Dall’Occo, E., Dalseno, J., D’Ambrosio, C., Danilina, A., D’Argent, P., Davis, A., De Aguiar Francisco, O., De Bruyn, K., De Capua, S., De Cian, M., De Miranda, J. M., De Paula, L., De Serio, M., De Simone, D., De Simone, P., De Vries, J. A., Dean, C. T., Dean, W., Decamp, D., Del Buono, L., Delaney, B., Dembinski, H.-P., Dendek, A., Denysenko, V., Derkach, D., Deschamps, O., Desse, F., Dettori, F., Dey, B., Di Canto, A., Di Nezza, P., Didenko, S., Dijkstra, H., Dobishuk, V., Donohoe, A. M., Dordei, F., Dorigo, M., Dos Reis, A. C., Douglas, L., Dovbnya, A., Downes, A. G., Dreimanis, K., Dudek, M. W., Dufour, L., Dujany, G., Durante, P., Durham, J. M., Dutta, D., Dziewiecki, M., Dziurda, A., Dzyuba, A., Easo, S., Egede, U., Egorychev, V., Eidelman, S., Eisenhardt, S., Ekelhof, R., Ek-In, S., Eklund, L., Ely, S., Ene, A., Epple, E., Escher, S., Eschle, J., Esen, S., Evans, T., Falabella, A., Fan, J., Fan, Y., Fang, B., Farley, N., Farry, S., Fazzini, D., Fedin, P., Féo, M., Fernandez Declara, P., Fernandez Prieto, A., 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., Fitzpatrick, C., Fiutowski, T., Fleuret, F., Fontana, M., Fontanelli, F., Forty, R., Franco Lima, V., Franco Sevilla, M., Frank, M., Franzoso, E., Frau, G., Frei, C., Friday, D. A., Fu, J., Fuehring, Q., Funk, W., Gabriel, E., Gaintseva, T., Gallas Torreira, A., Galli, D., Gallorini, S., 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., Gascon, D., Gaspar, C., Geertsema, R. E., Gerick, D., Gersabeck, E., Gersabeck, M., Gershon, T., Gerstel, D., Ghez, Ph., Gibson, V., Gioventù, A., Girard, O. G., Gironella Gironell, P., Giubega, L., Giugliano, C., Gizdov, K., Gligorov, V. V., Göbel, C., Golobardes, E., Golubkov, D., Golutvin, A., Gomes, A., Goncerz, M., Gorbounov, P., Gorelov, I. V., Gotti, C., Govorkova, E., Grabowski, J. P., Graciani Diaz, R., Grammatico, T., Granado Cardoso, L. A., Graugés, E., Graverini, E., Graziani, G., Grecu, A., Greeven, L. M., Greim, R., Griffith, P., Grillo, L., Gruber, L., Gruberg Cazon, B. R., Gu, C., Guarise, M., Günther, P. A., Guo, X., Gushchin, E., Guth, A., Guz, Y., Gys, T., Hadavizadeh, T., Haefeli, G., Haen, C., Haines, S. C., Hamilton, P. M., Han, Q., Han, X., Hancock, T. H., Hansmann-Menzemer, S., Harnew, N., Harrison, T., Hart, R., Hasse, C., Hatch, M., He, J., Hecker, M., Heijhoff, K., Heinicke, K., Hennequin, A. M., Hennessy, K., Henry, L., Heuel, J., Hicheur, A., Hill, D., Hilton, M., Hollitt, S. E., Hopchev, P. H., Hu, J., Hu, W., Huang, W., Huang, X., Hulsbergen, W., Humair, T., Hunter, R. J., Hushchyn, M., Hutchcroft, D., Hynds, D., Ibis, P., Idzik, M., Ilin, D., Ilten, P., Inglessi, A., Ivshin, K., Jacobsson, R., Jakobsen, S., Jans, E., Jashal, B. K., Jawahery, A., Jevtic, V., Jiang, F., John, M., Johnson, D., Jones, C. R., Jones, T. P., Jost, B., Jurik, N., Kandybei, S., Kang, Y., Karacson, M., Kariuki, J. M., Kazeev, N., Kecke, M., Keizer, F., Kelsey, M., Kenzie, M., Ketel, T., Khanji, B., Kharisova, A., Kholodenko, S., Kim, K. E., Kirn, T., Kirsebom, V. 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H., Lu, Y., Lucchesi, D., Luchuk, S., Lucio Martinez, M., Lukashenko, V., Luo, Y., Lupato, A., Luppi, E., Lupton, O., Lusiani, A., Lyu, X., Ma, L., Ma, R., Maccolini, S., Machefert, F., Maciuc, F., Macko, V., Mackowiak, P., Maddrell-Mander, S., Madhan Mohan, L. R., Maev, O., Maevskiy, A., Maisuzenko, D., Majewski, M. W., Malde, S., Malecki, B., Malinin, A., Maltsev, T., Malygina, H., Manca, G., Mancinelli, G., Manera Escalero, R., Manuzzi, D., Marangotto, D., Maratas, J., Marchand, J. F., Marconi, U., Mariani, S., Marin Benito, C., Marinangeli, M., Marino, P., Marks, J., Marshall, P. J., Martellotti, G., Martinazzoli, L., Martinelli, M., Martinez Santos, D., Martinez Vidal, F., Massafferri, A., Materok, M., Matev, R., Mathad, A., Mathe, Z., Matiunin, V., Matteuzzi, C., Mattioli, K. R., Mauri, A., Maurice, E., Mazurek, M., McCann, M., Mcconnell, L., Mcgrath, T. H., McNab, A., McNulty, R., Mead, J. 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C., Zhang, Y., Zhelezov, A., Zheng, Y., Zhou, X., Zhou, Y., Zhu, X., Zhukov, V., Zonneveld, J. B., Zucchelli, S., Zuliani, D., Zunica, G., and Apollo - University of Cambridge Repository
Subjects: Flavor physics, Regular Article - Experimental Physics, Hadron-Hadron scattering (experiments), High Energy Physics::Experiment, B physics
Abstract: The shape of the Bs0→Ds∗−μ+νμ differential decay rate is obtained as a function of the hadron recoil parameter using proton-proton collision data at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 1.7 fb−1 collected by the LHCb detector. The Bs0→Ds∗−μ+νμ decay is reconstructed through the decays Ds∗−→Ds−γ and Ds−→K−K+π−. The differential decay rate is fitted with the Caprini-Lellouch-Neubert (CLN) and Boyd-Grinstein-Lebed (BGL) parametrisations of the form factors, and the relevant quantities for both are extracted.
Published: 2020

23. Search for the lepton flavour violating decay B + → K + μ − τ + using B s 2 ∗ 0 decays

Author: Aaij, R., Abellán Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., Aidala, C. A., Aiola, S., Ajaltouni, Z., Akar, S., Albicocco, P., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Alkhazov, G., Alvarez Cartelle, P., Alves, A. A., Amato, S., Amhis, Y., An, L., Anderlini, L., Andreassi, G., Andreotti, M., Archilli, F., Artamonov, A., Artuso, M., Arzymatov, K., Aslanides, E., Atzeni, M., Audurier, B., Bachmann, S., Back, J. J., Baker, S., Balagura, V., Baldini, W., Baranov, A., Barlow, R. J., Barsuk, S., Barter, W., Bartolini, M., Baryshnikov, F., Basels, J. M., Bassi, G., Batozskaya, V., Batsukh, B., Battig, A., Bay, A., Becker, M., Bedeschi, F., Bediaga, I., Beiter, A., Bel, L. J., Belavin, V., Belin, S., Bellee, V., Belous, K., Belyaev, I., Bencivenni, G., Ben-Haim, E., Benson, S., Beranek, S., Berezhnoy, A., Bernet, R., Berninghoff, D., Bernstein, H. C., Bertella, C., Bertholet, E., Bertolin, A., Betancourt, C., Betti, F., Bettler, M. O., Bezshyiko, Ia., Bhasin, S., Bhom, J., Bieker, M. S., Bifani, S., Billoir, P., Bizzeti, A., Bjørn, M., Blago, M. P., Blake, T., Blanc, F., Blusk, S., Bobulska, D., Bocci, V., Boente Garcia, O., Boettcher, T., Boldyrev, A., Bondar, A., Bondar, N., Borghi, S., Borisyak, M., Borsato, M., Borsuk, J. T., Bowcock, T. J. V., Bozzi, C., Bradley, M. J., Braun, S., Brea Rodriguez, A., Brodski, M., Brodzicka, J., Brossa Gonzalo, A., Brundu, D., Buchanan, E., Büchler-Germann, A., Buonaura, A., Burr, C., Bursche, A., Butkevich, A., Butter, J. S., Buytaert, J., Byczynski, W., Cadeddu, S., Cai, H., Calabrese, R., Calero Diaz, L., Cali, S., Calladine, R., Calvi, M., Calvo Gomez, M., Camargo Magalhaes, P., Camboni, A., Campana, P., Campora Perez, D. H., Campoverde Quezada, A. F., Capriotti, L., Carbone, A., Carboni, G., Cardinale, R., Cardini, A., Carli, I., Carniti, P., Carvalho Akiba, K., Casais Vidal, A., Casse, G., Cattaneo, M., Cavallero, G., Celani, S., Cenci, R., Cerasoli, J., Chapman, M. G., Charles, M., Charpentier, Ph., Chatzikonstantinidis, G., Chefdeville, M., Chekalina, V., Chen, C., Chen, S., Chernov, A., Chitic, S.-G., Chobanova, V., Cholak, S., Chrzaszcz, M., Chubykin, A., Ciambrone, P., Cicala, M. F., Cid Vidal, X., Ciezarek, G., Cindolo, F., 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., Comerma-Montells, A., Contu, A., Cooke, N., Coombs, G., Coquereau, S., Corti, G., Costa Sobral, C. M., Couturier, B., Craik, D. C., Crkovská, J., Crocombe, A., Cruz Torres, M., Currie, R., Da Silva, C. L., Dall’Occo, E., Dalseno, J., D’Ambrosio, C., Danilina, A., D’Argent, P., Davis, A., De Aguiar Francisco, O., De Bruyn, K., De Capua, S., De Cian, M., De Miranda, J. M., De Paula, L., De Serio, M., De Simone, P., De Vries, J. A., Dean, C. T., Dean, W., Decamp, D., Del Buono, L., Delaney, B., Dembinski, H.-P., Dendek, A., Denysenko, V., Derkach, D., Deschamps, O., Desse, F., Dettori, F., Dey, B., Di Canto, A., Di Nezza, P., Didenko, S., Dijkstra, H., Dobishuk, V., Dordei, F., Dorigo, M., Dos Reis, A. C., Douglas, L., Dovbnya, A., Dreimanis, K., Dudek, M. W., Dufour, L., Dujany, G., Durante, P., Durham, J. M., Dutta, D., Dziewiecki, M., Dziurda, A., Dzyuba, A., Easo, S., Egede, U., Egorychev, V., Eidelman, S., Eisenhardt, S., Ekelhof, R., Ek-In, S., Eklund, L., Ely, S., Ene, A., Epple, E., Escher, S., Esen, S., Evans, T., Falabella, A., Fan, J., Farley, N., Farry, S., Fazzini, D., Fedin, P., Féo, M., Fernandez Declara, P., Fernandez Prieto, A., 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., Fitzpatrick, C., Fiutowski, T., Fleuret, F., Fontana, M., Fontanelli, F., Forty, R., Franco Lima, V., Franco Sevilla, M., Frank, M., Frei, C., Friday, D. A., Fu, J., Fuehring, Q., Funk, W., Gabriel, E., Gallas Torreira, A., Galli, D., Gallorini, S., Gambetta, S., Gan, Y., Gandelman, M., Gandini, P., Gao, Y., Garcia Martin, L. M., García Pardiñas, J., Garcia Plana, B., Garcia Rosales, F. A., Garrido, L., Gascon, D., Gaspar, C., Gerick, D., Gersabeck, E., Gersabeck, M., Gershon, T., Gerstel, D., Ghez, Ph., Gibson, V., Gioventù, A., Girard, O. G., Gironella Gironell, P., Giubega, L., Giugliano, C., Gizdov, K., Gligorov, V. V., Göbel, C., Golubkov, D., Golutvin, A., Gomes, A., Gorbounov, P., Gorelov, I. V., Gotti, C., Govorkova, E., Grabowski, J. P., Graciani Diaz, R., Grammatico, T., Granado Cardoso, L. A., Graugés, E., Graverini, E., Graziani, G., Grecu, A., Greim, R., Griffith, P., Grillo, L., Gruber, L., Gruberg Cazon, B. R., Gu, C., Gushchin, E., Guth, A., Guz, Yu., Gys, T., Günther, P. A., Hadavizadeh, T., Haefeli, G., Haen, C., Haines, S. C., Hamilton, P. M., Han, Q., Han, X., Hancock, T. H., Hansmann-Menzemer, S., Harnew, N., Harrison, T., Hart, R., Hasse, C., Hatch, M., He, J., Hecker, M., Heijhoff, K., Heinicke, K., Hennequin, A. M., Hennessy, K., Henry, L., Heuel, J., Hicheur, A., Hill, D., Hilton, M., Hopchev, P. H., Hu, J., Hu, W., Huang, W., Hulsbergen, W., Humair, T., Hunter, R. J., Hushchyn, M., Hutchcroft, D., Hynds, D., Ibis, P., Idzik, M., Ilten, P., Inglessi, A., Ivshin, K., Jacobsson, R., Jakobsen, S., Jans, E., Jashal, B. K., Jawahery, A., Jevtic, V., Jiang, F., John, M., Johnson, D., Jones, C. R., Jost, B., Jurik, N., Kandybei, S., Karacson, M., Kariuki, J. M., Kazeev, N., Kecke, M., Keizer, F., Kelsey, M., Kenzie, M., Ketel, T., Khanji, B., Kharisova, A., Kim, K. E., Kirn, T., Kirsebom, V. S., Klaver, S., Klimaszewski, K., Koliiev, S., Kondybayeva, A., Konoplyannikov, A., Kopciewicz, P., Kopecna, R., Koppenburg, P., Korolev, M., Kostiuk, I., Kot, O., Kotriakhova, S., Kravchuk, L., Krawczyk, R. D., Kreps, M., Kress, F., Kretzschmar, S., Krokovny, P., Krupa, W., Krzemien, W., Kucewicz, W., Kucharczyk, M., Kudryavtsev, V., Kuindersma, H. S., Kunde, G. J., Kvaratskheliya, T., Lacarrere, D., Lafferty, G., Lai, A., Lancierini, D., Lane, J. J., Lanfranchi, G., Langenbruch, C., Lantwin, O., Latham, T., Lazzari, F., Lazzeroni, C., Le Gac, R., Lefèvre, R., Leflat, A., Leroy, O., Lesiak, T., Leverington, B., Li, H., Li, L., Li, X., Li, Y., Li, Z., Liang, X., Lindner, R., Lisovskyi, V., Liu, G., Liu, X., Loh, D., Loi, A., Lomba Castro, J., Longstaff, I., Lopes, J. H., Loustau, G., Lovell, G. 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L., Pappenheimer, C., Parker, W., Parkes, C., Passaleva, G., Pastore, A., Patel, M., Patrignani, C., Pearce, A., Pellegrino, A., Pepe Altarelli, M., Perazzini, S., Pereima, D., Perret, P., Pescatore, L., Petridis, K., Petrolini, A., Petrov, A., Petrucci, S., Petruzzo, M., Pietrzyk, B., Pietrzyk, G., Pili, M., Pinci, D., Pinzino, J., Pisani, F., Piucci, A., Placinta, V., Playfer, S., Plews, J., Plo Casasus, M., Polci, F., Poli Lener, M., Poliakova, M., Poluektov, A., Polukhina, N., Polyakov, I., Polycarpo, E., Pomery, G. J., Ponce, S., Popov, A., Popov, D., Poslavskii, S., Prasanth, K., Promberger, L., Prouve, C., Pugatch, V., Puig Navarro, A., Pullen, H., Punzi, G., Qian, W., Qin, J., Quagliani, R., Quintana, B., Raab, N. V., Rabadan Trejo, R. I., Rachwal, B., Rademacker, J. H., 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., Ricciardi, S., Richards, D. 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T., Trifonova, E., Trippl, C., Trisovic, A., Tsaregorodtsev, A., Tuci, G., Tully, A., Tuning, N., Ukleja, A., Usachov, A., Ustyuzhanin, A., Uwer, U., Vagner, A., Vagnoni, V., Valassi, A., Valenti, G., Van Beuzekom, 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., Vernet, M., Veronesi, M., Vesterinen, M., Viana Barbosa, J. V., Vieira, D., Vieites Diaz, M., Viemann, H., Vilasis-Cardona, X., Vitkovskiy, A., Vollhardt, A., Vom Bruch, D., Vorobyev, A., Vorobyev, V., Voropaev, N., Waldi, R., Walsh, J., Wang, J., Wang, M., Wang, Y., Wang, Z., Ward, D. R., Wark, H. M., Watson, N. K., Websdale, D., Weiden, A., Weisser, C., Westhenry, B. D. C., White, D. J., Whitehead, M., Wiedner, D., Wilkinson, G., Wilkinson, M., Williams, I., Williams, M., Williams, M. R. J., Williams, T., Wilson, F. F., Wislicki, W., Witek, M., Witola, L., Wormser, G., Wotton, S. A., Wu, H., Wyllie, K., Xiang, Z., Xiao, D., Xie, Y., Xing, H., Xu, A., Xu, L., Xu, M., Xu, Q., Xu, Z., Yang, Z., Yao, Y., Yeomans, L. E., Yin, H., Yu, J., Yuan, X., Yushchenko, O., Zarebski, K. A., Zavertyaev, M., Zdybal, M., Zeng, M., Zhang, D., Zhang, L., Zhang, S., Zhang, W. C., Zhang, Y., Zhelezov, A., Zheng, Y., Zhou, X., Zhou, Y., Zhu, X., Zhukov, V., Zonneveld, J. B., Zucchelli, S., Rudolph, M. S. [0000-0002-0050-575X], and Apollo - University of Cambridge Repository
Subjects: Flavor physics, Rare decay, Regular Article - Experimental Physics, Hadron-Hadron scattering (experiments), High Energy Physics::Phenomenology, Beyond Standard Model, High Energy Physics::Experiment, B physics
Abstract: A search is presented for the lepton flavour violating decay B+ → K+μ−τ+ using a sample of proton-proton collisions at centre-of-mass energies of 7, 8, and 13 TeV, collected with the LHCb detector and corresponding to a total integrated luminosity of 9 fb−1. The τ leptons are selected inclusively, primarily via decays with a single charged particle. The four-momentum of the τ lepton is determined by using B+ mesons from Bs2∗0→B+K− decays. No significant excess is observed, and an upper limit is set on the branching fraction ℬ(B+ → K+μ−τ+) < 3.9 × 10−5 at 90 % confidence level. The obtained limit is comparable to the world-best limit.
Published: 2020
Full Text: View/download PDF

24. Amplitude analysis of Bs0 → KS0 K ± π ∓ decays

Author: Aaij, R, Abellán Beteta, C, Adeva, B, Adinolfi, M, Aidala, CA, Ajaltouni, Z, Akar, S, Albicocco, P, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreotti, M, Andrews, JE, Archilli, F, Arnau Romeu, J, Artamonov, A, Artuso, M, Arzymatov, K, Aslanides, E, Atzeni, M, Audurier, B, Bachmann, S, Back, JJ, Baker, S, Balagura, V, Baldini, W, Baranov, A, Barlow, RJ, Barrand, GC, Barsuk, S, Barter, W, Bartolini, M, Baryshnikov, F, Batozskaya, V, Batsukh, B, Battig, A, Battista, V, Bay, A, Beddow, J, Bedeschi, F, Bediaga, I, Beiter, A, Bel, LJ, Belin, S, Beliy, N, Bellee, V, Belloli, N, Belous, K, Belyaev, I, Bencivenni, G, Ben-Haim, E, Benson, S, Beranek, S, Berezhnoy, A, Bernet, R, Berninghoff, D, Bertholet, E, Bertolin, A, Betancourt, C, Betti, F, Bettler, MO, Bezshyiko, I, Bhasin, S, Bhom, J, Bieker, MS, Bifani, S, Billoir, P, Birnkraut, A, Bizzeti, A, Bjørn, M, Blago, MP, Blake, T, Blanc, F, Blusk, S, Bobulska, D, Bocci, V, Boente Garcia, O, Boettcher, T, Bondar, A, Bondar, N, Borghi, S, Borisyak, M, Borsato, M, Boubdir, M, Bowcock, TJV, Bozzi, C, Braun, S, Brodski, M, Brodzicka, J, and Brossa Gonzalo, A
Subjects: Flavor physics, CP violation, Hadron-Hadron scattering (experiments), Branching fraction, B physics
Abstract: The first untagged decay-time-integrated amplitude analysis of $B^{0}_{s} \rightarrow K^{0}_{\textrm{S}} K^{\pm}\pi^{\mp}$ decays is performed using a sample corresponding to $3.0\,$fb$^{-1}$ of $pp$ collision data recorded with the LHCb detector during 2011 and 2012. The data are described with an amplitude model that contains contributions from the intermediate resonances $K^{*}(892)^{0,+}$, $K^*_2(1430)^{0,+}$ and $K^*_0(1430)^{0,+}$, and their charge conjugates. Measurements of the branching fractions of the decay modes $B^{0}_{s} \rightarrow K^{*}(892)^{\pm}K^{\mp}$ and $B^{0}_{s} \rightarrow K^{*}(892)^{0}\kern 0.2em\overline{\kern -0.2em K}{}^{0}, \kern 0.2em\overline{\kern -0.2em K}{}^{*}(892)^{0}K^{0}$ are in agreement with, and more precise than, previous results. The decays $B^{0}_{s} \rightarrow K^*_0(1430)^{\pm} K^{\mp}$ and $B^{0}_{s} \rightarrow K^{*}_{0}(1430)^{0}\kern 0.2em\overline{\kern -0.2em K}{}^{0}, \kern 0.2em\overline{\kern -0.2em K}{}^{*}_{0}(1430)^{0}K^{0}$ are observed for the first time, each with significance over 10 standard deviations.
Published: 2020
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25. Measurement of the Λ b 0 → J/ψ Λ angular distribution and the Λ b 0 polarisation in pp collisions

Author: Aaij, R., Abellán Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., Aidala, C. A., Aiola, S., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Alkhazov, G., Alvarez Cartelle, P., Alves, A. A., Amato, S., Amhis, Y., An, L., Anderlini, L., Andreassi, G., Andreianov, A., Andreotti, M., Archilli, F., Artamonov, A., Artuso, M., Arzymatov, K., Aslanides, E., Atzeni, M., Audurier, B., Bachmann, S., Back, J. J., Baker, S., Balagura, V., Baldini, W., Baptista Leite, J., Barlow, R. J., Barsuk, S., Barter, W., Bartolini, M., Baryshnikov, F., Basels, J. M., Bassi, G., Batozskaya, V., Batsukh, B., Battig, A., Bay, A., Becker, M., Bedeschi, F., Bediaga, I., Beiter, A., Belavin, V., Belin, S., Bellee, V., Belous, K., Belyaev, I., Bencivenni, G., Ben-Haim, E., Benson, S., Berezhnoy, A., Bernet, R., Berninghoff, D., Bernstein, H. C., Bertella, C., Bertholet, E., Bertolin, A., Betancourt, C., Betti, F., Bettler, M. O., Bezshyiko, Ia., Bhasin, S., Bhom, J., Bieker, M. S., Bifani, S., Billoir, P., Bizzeti, A., Bjørn, M., Blago, M. P., Blake, T., Blanc, F., Blusk, S., Bobulska, D., Bocci, V., Boente Garcia, O., Boettcher, T., Boldyrev, A., Bondar, A., Bondar, N., Borghi, S., Borisyak, M., Borsato, M., Borsuk, J. T., Bowcock, T. J. V., Boyer, A., Bozzi, C., Bradley, M. J., Braun, S., Brea Rodriguez, A., Brodski, M., Brodzicka, J., Brossa Gonzalo, A., Brundu, D., Buchanan, E., Büchler-Germann, A., Buonaura, A., Burr, C., Bursche, A., Butkevich, A., Butter, J. S., Buytaert, J., Byczynski, W., Cadeddu, S., Cai, H., Calabrese, R., Calero Diaz, L., Cali, S., Calladine, R., Calvi, M., Calvo Gomez, M., Camargo Magalhaes, P., Camboni, A., Campana, P., Campora Perez, D. H., Campoverde Quezada, A. F., Capriotti, L., Carbone, A., Carboni, G., Cardinale, R., Cardini, A., Carli, I., Carniti, P., Carvalho Akiba, K., Casais Vidal, A., Casse, G., Cattaneo, M., Cavallero, G., Celani, S., Cenci, R., Cerasoli, J., Chapman, M. G., Charles, M., Charpentier, Ph., Chatzikonstantinidis, G., Chefdeville, M., Chekalina, V., Chen, C., Chen, S., Chernov, A., Chitic, S.-G., Chobanova, V., Cholak, S., Chrzaszcz, M., Chubykin, A., Chulikov, V., Ciambrone, P., Cicala, M. F., Cid Vidal, X., Ciezarek, G., Cindolo, F., 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., Contu, A., Cooke, N., Coombs, G., Coquereau, S., Corti, G., Costa Sobral, C. M., Couturier, B., Craik, D. C., Crkovská, J., Crocombe, A., Cruz Torres, M., Currie, R., Da Silva, C. 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[0000-0002-6133-486X], and Apollo - University of Cambridge Repository
Subjects: Flavor physics, Heavy quark production, Regular Article - Experimental Physics, Hadron-Hadron scattering (experiments), Polarization, High Energy Physics::Experiment, Nuclear Experiment, B physics
Abstract: This paper presents an analysis of the Λb0→ J/ψΛ angular distribution and the transverse production polarisation of Λb0 baryons in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 TeV. The measurements are performed using data corresponding to an integrated luminosity of 4.9 fb−1, collected with the LHCb experiment. The polarisation is determined in a fiducial region of Λb0 transverse momentum and pseudorapidity of 1 < pT< 20 GeV/c and 2 < η < 5, respectively. The data are consistent with Λb0 baryons being produced unpolarised in this region. The parity-violating asymmetry parameter of the Λ → pπ− decay is also determined from the data and its value is found to be consistent with a recent measurement by the BES III collaboration.
Published: 2020
Full Text: View/download PDF

26. Measurement of CP observables in B ± → DK ± and B ± → Dπ ± with D → K S 0 K ± π ∓ decays

Author: Aaij, R., Abellán Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., Aidala, C. A., Aiola, S., Ajaltouni, Z., Akar, S., Albicocco, P., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Alkhazov, G., Alvarez Cartelle, P., Alves, A. A., Amato, S., Amhis, Y., An, L., Anderlini, L., Andreassi, G., Andreotti, M., Archilli, F., Artamonov, A., Artuso, M., Arzymatov, K., Aslanides, E., Atzeni, M., Audurier, B., Bachmann, S., Back, J. J., Baker, S., Balagura, V., Baldini, W., Baranov, A., Barlow, R. J., Barsuk, S., Barter, W., Bartolini, M., Baryshnikov, F., Basels, J. M., Bassi, G., Batozskaya, V., Batsukh, B., Battig, A., Bay, A., Becker, M., Bedeschi, F., Bediaga, I., Beiter, A., Bel, L. J., Belavin, V., Belin, S., Bellee, V., Belous, K., Belyaev, I., Bencivenni, G., Ben-Haim, E., Benson, S., Beranek, S., Berezhnoy, A., Bernet, R., Berninghoff, D., Bernstein, H. C., Bertella, C., Bertholet, E., Bertolin, A., Betancourt, C., Betti, F., Bettler, M. O., Bezshyiko, Ia., Bhasin, S., Bhom, J., Bieker, M. S., Bifani, S., Billoir, P., Bizzeti, A., Bjørn, M., Blago, M. P., Blake, T., Blanc, F., Blusk, S., Bobulska, D., Bocci, V., Boente Garcia, O., Boettcher, T., Boldyrev, A., Bondar, A., Bondar, N., Borghi, S., Borisyak, M., Borsato, M., Borsuk, J. T., Bowcock, T. J. V., Bozzi, C., Bradley, M. J., Braun, S., Brea Rodriguez, A., Brodski, M., Brodzicka, J., Brossa Gonzalo, A., Brundu, D., Buchanan, E., Büchler-Germann, A., Buonaura, A., Burr, C., Bursche, A., Butkevich, A., Butter, J. S., Buytaert, J., Byczynski, W., Cadeddu, S., Cai, H., Calabrese, R., Calero Diaz, L., Cali, S., Calladine, R., Calvi, M., Calvo Gomez, M., Camargo Magalhaes, P., Camboni, A., Campana, P., Campora Perez, D. H., Campoverde Quezada, A. F., Capriotti, L., Carbone, A., Carboni, G., Cardinale, R., Cardini, A., Carli, I., Carniti, P., Carvalho Akiba, K., Casais Vidal, A., Casse, G., Cattaneo, M., Cavallero, G., Celani, S., Cenci, R., Cerasoli, J., Chapman, M. 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A., Millard, E., Minard, M.-N., Mineev, O., Minzoni, L., Mitchell, S. E., Mitreska, B., Mitzel, D. S., Mödden, A., Mogini, A., Moise, R. D., 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., Mukherjee, M., Mulder, M., Müller, D., Müller, K., Murphy, C. H., Murray, D., Muzzetto, P., Naik, P., Nakada, T., Nandakumar, R., Nanut, T., Nasteva, I., Needham, M., Neri, N., Neubert, S., Neufeld, N., Newcombe, R., Nguyen, T. D., Nguyen-Mau, C., Niel, E. M., Nieswand, S., Nikitin, N., Nolte, N. S., Nunez, C., Oblakowska-Mucha, A., Obraztsov, V., Ogilvy, S., O’Hanlon, D. P., Oldeman, R., Onderwater, C. J. G., Osborn, J. D., Ossowska, A., Otalora Goicochea, J. M., Ovsiannikova, T., Owen, P., Oyanguren, A., Pais, P. R., Pajero, T., Palano, A., Palutan, M., Panshin, G., Papanestis, A., Pappagallo, M., Pappalardo, L. L., Pappenheimer, C., Parker, W., Parkes, C., Passaleva, G., Pastore, A., Patel, M., Patrignani, C., Pearce, A., Pellegrino, A., Pepe Altarelli, M., Perazzini, S., Pereima, D., Perret, P., Pescatore, L., Petridis, K., Petrolini, A., Petrov, A., Petrucci, S., Petruzzo, M., Pietrzyk, B., Pietrzyk, G., Pili, M., Pinci, D., Pinzino, J., Pisani, F., Piucci, A., Placinta, V., Playfer, S., Plews, J., Plo Casasus, M., Polci, F., Poli Lener, M., Poliakova, M., Poluektov, A., Polukhina, N., Polyakov, I., Polycarpo, E., Pomery, G. J., Ponce, S., Popov, A., Popov, D., Poslavskii, S., Prasanth, K., Promberger, L., Prouve, C., Pugatch, V., Puig Navarro, A., Pullen, H., Punzi, G., Qian, W., Qin, J., Quagliani, R., Quintana, B., Raab, N. V., Rabadan Trejo, R. I., Rachwal, B., Rademacker, J. H., 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., Ricciardi, S., Richards, D. S., Richards, S., Rinnert, K., Robbe, P., Robert, A., Rodrigues, A. B., Rodrigues, E., Rodriguez Lopez, J. A., Roehrken, M., Roiser, S., Rollings, A., Romanovskiy, V., Romero Lamas, M., Romero Vidal, A., Roth, J. D., Rotondo, M., Rudolph, M. S., Ruf, T., Ruiz Vidal, J., Ryzhikov, A., Ryzka, J., Saborido Silva, J. J., Sagidova, N., Sahoo, N., Saitta, B., Sanchez Gras, C., Sanchez Mayordomo, C., Santacesaria, R., Santamarina Rios, C., Santimaria, M., Santovetti, E., Sarpis, G., Sarti, A., Satriano, C., Satta, A., Saur, M., Savrina, D., Scantlebury Smead, L. G., Schael, S., Schellenberg, M., Schiller, M., Schindler, H., Schmelling, M., Schmelzer, T., Schmidt, B., Schneider, O., Schopper, A., Schreiner, H. F., Schubiger, M., Schulte, S., Schune, M. H., Schwemmer, R., Sciascia, B., Sciubba, A., Sellam, S., Semennikov, A., Sergi, A., Serra, N., Serrano, J., Sestini, L., Seuthe, A., Seyfert, P., Shangase, D. M., Shapkin, M., Shchutska, L., Shears, T., Shekhtman, L., Shevchenko, V., Shmanin, E., Shupperd, J. D., Siddi, B. G., Silva Coutinho, R., Silva de Oliveira, L., Simi, G., Simone, S., Skiba, I., Skidmore, N., Skwarnicki, T., Slater, M. W., Smeaton, J. G., Smetkina, A., Smith, E., Smith, I. T., Smith, M., Snoch, A., Soares, M., Soares Lavra, L., Sokoloff, M. D., Soler, F. J. P., Souza De Paula, B., Spaan, B., Spadaro Norella, E., Spradlin, P., Stagni, F., Stahl, M., Stahl, S., Stefko, P., Steinkamp, O., Stemmle, S., Stenyakin, O., Stepanova, M., Stevens, H., Stone, S., Stracka, S., Stramaglia, M. E., Straticiuc, M., Strokov, S., Sun, J., Sun, L., Sun, Y., Svihra, P., Swientek, K., Szabelski, A., Szumlak, T., Szymanski, M., Taneja, S., Tang, Z., Tekampe, T., Teubert, F., Thomas, E., Thomson, K. A., Tilley, M. J., Tisserand, V., T’Jampens, S., Tobin, M., Tolk, S., Tomassetti, L., Tonelli, D., Torres Machado, D., Tou, D. Y., Tournefier, E., Traill, M., Tran, M. T., Trifonova, E., Trippl, C., Trisovic, A., Tsaregorodtsev, A., Tuci, G., Tully, A., Tuning, N., Ukleja, A., Usachov, A., Ustyuzhanin, A., Uwer, U., Vagner, A., Vagnoni, V., Valassi, A., Valenti, G., van Beuzekom, 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., Vernet, M., Veronesi, M., Vesterinen, M., Viana Barbosa, J. V., Vieira, D., Vieites Diaz, M., Viemann, H., Vilasis-Cardona, X., Vitkovskiy, A., Vollhardt, A., Vom Bruch, D., Vorobyev, A., Vorobyev, V., Voropaev, N., Waldi, R., Walsh, J., Wang, J., Wang, M., Wang, Y., Wang, Z., Ward, D. R., Wark, H. M., Watson, N. K., Websdale, D., Weiden, A., Weisser, C., Westhenry, B. D. C., White, D. J., Whitehead, M., Wiedner, D., Wilkinson, G., Wilkinson, M., Williams, I., Williams, M., Williams, M. R. J., Williams, T., Wilson, F. F., Wislicki, W., Witek, M., Witola, L., Wormser, G., Wotton, S. A., Wu, H., Wyllie, K., Xiang, Z., Xiao, D., Xie, Y., Xing, H., Xu, A., Xu, L., Xu, M., Xu, Q., Xu, Z., Yang, Z., Yao, Y., Yeomans, L. E., Yin, H., Yu, J., Yuan, X., Yushchenko, O., Zarebski, K. A., Zavertyaev, M., Zdybal, M., Zeng, M., Zhang, D., Zhang, L., Zhang, S., Zhang, W. C., Zhang, Y., Zhelezov, A., Zheng, Y., Zhou, X., Zhou, Y., Zhu, X., Zhukov, V., Zonneveld, J. B., Zucchelli, S., and Apollo - University of Cambridge Repository
Subjects: Flavor physics, CP violation, Regular Article - Experimental Physics, Hadron-Hadron scattering (experiments), CKM angle gamma, B physics
Abstract: Measurements of CP observables in B± → DK± and B± → Dπ± decays are presented, where D represents a superposition of D0 and D¯0 states. The D meson is reconstructed in the three-body final states KS0K±π∓ and KS0K∓π±. The analysis uses samples of B mesons produced in proton-proton collisions, corresponding to an integrated luminosity of 1.0, 2.0, and 6.0 fb−1 collected with the LHCb detector at centre-of-mass energies of s = 7, 8, and 13 TeV, respectively. These measurements are the most precise to date, and provide important input for the determination of the CKM angle γ.
Published: 2020
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27. Observation of the semileptonic decay B + → p p ¯ μ + ν μ

Author: Aaij, R., Abellán Beteta, C., Ackernley, T., Adeva, B., Adinolfi, M., Afsharnia, H., Aidala, C. A., Aiola, S., Ajaltouni, Z., Akar, S., Albicocco, P., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Alkhazov, G., Alvarez Cartelle, P., Alves, A. A., Jr, Amato, S., Amhis, Y., An, L., Anderlini, L., Andreassi, G., Andreotti, M., Archilli, F., Arnau Romeu, J., Artamonov, A., Artuso, M., Arzymatov, K., Aslanides, E., Atzeni, M., Audurier, B., Bachmann, S., Back, J. J., Baker, S., Balagura, V., Baldini, W., Baranov, A., Barlow, R. J., Barsuk, S., Barter, W., Bartolini, M., Baryshnikov, F., Bassi, G., Batozskaya, V., Batsukh, B., Battig, A., Bay, A., Becker, M., Bedeschi, F., Bediaga, I., Beiter, A., Bel, L. J., Belavin, V., Belin, S., Beliy, N., Bellee, V., Belous, K., Belyaev, I., Bencivenni, G., Ben-Haim, E., Benson, S., Beranek, S., Berezhnoy, A., Bernet, R., Berninghoff, D., Bernstein, H. C., Bertholet, E., Bertolin, A., Betancourt, C., Betti, F., Bettler, M. O., Bezshyiko, Ia., Bhasin, S., Bhom, J., Bieker, M. S., Bifani, S., Billoir, P., Bizzeti, A., Bjørn, M., Blago, M. P., Blake, T., Blanc, F., Blusk, S., Bobulska, D., Bocci, V., Boente Garcia, O., Boettcher, T., Boldyrev, A., Bondar, A., Bondar, N., Borghi, S., Borisyak, M., Borsato, M., Borsuk, J. T., Bowcock, T. J. V., Bozzi, C., Bradley, M. J., Braun, S., Brea Rodriguez, A., Brodski, M., Brodzicka, J., Brossa Gonzalo, A., Brundu, D., Buchanan, E., Buonaura, A., Burr, C., Bursche, A., Butter, J. S., Buytaert, J., Byczynski, W., Cadeddu, S., Cai, H., Calabrese, R., Calero Diaz, L., Cali, S., Calladine, R., Calvi, M., Calvo Gomez, M., Camboni, A., Campana, P., Campora Perez, D. H., Capriotti, L., Carbone, A., Carboni, G., Cardinale, R., Cardini, A., Carniti, P., Carvalho Akiba, K., Casais Vidal, A., Casse, G., Cattaneo, M., Cavallero, G., Cenci, R., Cerasoli, J., Chapman, M. G., Charles, M., Charpentier, Ph., Chatzikonstantinidis, G., Chefdeville, M., Chekalina, V., Chen, C., Chen, S., Chernov, A., Chitic, S.-G., Chobanova, V., Chrzaszcz, M., Chubykin, A., Ciambrone, P., Cicala, M. F., Vidal, X. Cid, Ciezarek, G., Cindolo, F., 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., Comerma-Montells, A., Contu, A., Cooke, N., Coombs, G., Coquereau, S., Corti, G., Costa Sobral, C. M., Couturier, B., Craik, D. C., Crkovska, J., Crocombe, A., Cruz Torres, M., Currie, R., Da Silva, C. L., Dall’Occo, E., Dalseno, J., D’Ambrosio, C., Danilina, A., d’Argent, P., Davis, A., De Aguiar Francisco, O., De Bruyn, K., De Capua, S., De Cian, M., De Miranda, J. M., De Paula, L., De Serio, M., De Simone, P., de Vries, J. A., Dean, C. T., Dean, W., Decamp, D., Del Buono, L., Delaney, B., Dembinski, H.-P., Demmer, M., Dendek, A., Denysenko, V., Derkach, D., Deschamps, O., Desse, F., Dettori, F., Dey, B., Di Canto, A., Di Nezza, P., Didenko, S., Dijkstra, H., Dobishuk, V., Dordei, F., Dorigo, M., dos Reis, A. C., Douglas, L., Dovbnya, A., Dreimanis, K., Dudek, M. W., Dufour, L., Dujany, G., Durante, P., Durham, J. M., Dutta, D., Dzhelyadin, R., Dziewiecki, M., Dziurda, A., Dzyuba, A., Easo, S., Egede, U., Egorychev, V., Eidelman, S., Eisenhardt, S., Ekelhof, R., Ek-In, S., Eklund, L., Ely, S., Ene, A., Escher, S., Esen, S., Evans, T., Falabella, A., Fan, J., Farley, N., Farry, S., Fazzini, D., Féo, M., Fernandez Declara, P., Fernandez Prieto, A., 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., Fitzpatrick, C., Fiutowski, T., Fleuret, F., Fontana, M., Fontanelli, F., Forty, R., Franco Lima, V., Franco Sevilla, M., Frank, M., Frei, C., Friday, D. A., Fu, J., Fuehring, M., Funk, W., Gabriel, E., Gallas Torreira, A., Galli, D., Gallorini, S., Gambetta, S., Gan, Y., Gandelman, M., Gandini, P., Gao, Y., Garcia Martin, L. M., García Pardiñas, J., Garcia Plana, B., Garcia Rosales, F. A., Garra Tico, J., Garrido, L., Gascon, D., Gaspar, C., Gerick, D., Gersabeck, E., Gersabeck, M., Gershon, T., Gerstel, D., Ghez, Ph., Gibson, V., Gioventú, A., Girard, O. G., Gironella Gironell, P., Giubega, L., Giugliano, C., Gizdov, K., Gligorov, V. V., Göbel, C., Golubkov, D., Golutvin, A., Gomes, A., Gorbounov, P., Gorelov, I. V., Gotti, C., Govorkova, E., Grabowski, J. P., Graciani Diaz, R., Grammatico, T., Granado Cardoso, L. A., Graugés, E., Graverini, E., Graziani, G., Grecu, A., Greim, R., Griffith, P., Grillo, L., Gruber, L., Gruberg Cazon, B. R., Gu, C., Gushchin, E., Guth, A., Guz, Yu., Gys, T., Hadavizadeh, T., Haefeli, G., Haen, C., Haines, S. C., Hamilton, P. M., Han, Q., Han, X., Hancock, T. H., Hansmann-Menzemer, S., Harnew, N., Harrison, T., Hart, R., Hasse, C., Hatch, M., He, J., Hecker, M., Heijhoff, K., Heinicke, K., Heister, A., Hennequin, A. M., Hennessy, K., Henry, L., Heuel, J., Hicheur, A., Hidalgo Charman, R., Hill, D., Hilton, M., Hopchev, P. H., Hu, J., Hu, W., Huang, W., Hulsbergen, W., Humair, T., Hunter, R. J., Hushchyn, M., Hutchcroft, D., Hynds, D., Ibis, P., Idzik, M., Ilten, P., Inglessi, A., Inyakin, A., Ivshin, K., Jacobsson, R., Jakobsen, S., Jalocha, J., Jans, E., Jashal, B. K., Jawahery, A., Jevtic, V., Jiang, F., John, M., Johnson, D., Jones, C. R., Jost, B., Jurik, N., Kandybei, S., Karacson, M., Kariuki, J. M., Kazeev, N., Kecke, M., Keizer, F., Kelsey, M., Kenzie, M., Ketel, T., Khanji, B., Kharisova, A., Kim, K. E., Kirn, T., Kirsebom, V. S., Klaver, S., Klimaszewski, K., Koliiev, S., Kondybayeva, A., Konoplyannikov, A., Kopciewicz, P., Kopecna, R., Koppenburg, P., Kostiuk, I., Kot, O., Kotriakhova, S., Kravchuk, L., Krawczyk, R. D., Kreps, M., Kress, F., Kretzschmar, S., Krokovny, P., Krupa, W., Krzemien, W., Kucewicz, W., Kucharczyk, M., Kudryavtsev, V., Kuindersma, H. S., Kunde, G. J., Kvaratskheliya, T., Lacarrere, D., Lafferty, G., Lai, A., Lancierini, D., Lane, J. J., Lanfranchi, G., Langenbruch, C., Latham, T., Lazzari, F., Lazzeroni, C., Le Gac, R., Lefèvre, R., Leflat, A., Lemaitre, F., Leroy, O., Lesiak, T., Leverington, B., Li, H., Li, X., Li, Y., Li, Z., Liang, X., Lindner, R., Lisovskyi, V., Liu, G., Liu, X., Loh, D., Loi, A., Lomba Castro, J., Longstaff, I., Lopes, J. H., Loustau, G., Lovell, G. H., Lu, Y., Lucchesi, D., Lucio Martinez, M., Luo, Y., Lupato, A., Luppi, E., Lupton, O., Lusiani, A., Lyu, X., Maccolini, S., Machefert, F., Maciuc, F., Macko, V., Mackowiak, P., Maddrell-Mander, S., Madhan Mohan, L. R., Maev, O., Maevskiy, A., Maisuzenko, D., Majewski, M. W., Malde, S., Malecki, B., Malinin, A., Maltsev, T., Malygina, H., Manca, G., Mancinelli, G., Manera Escalero, R., Manuzzi, D., Marangotto, D., Maratas, J., Marchand, J. F., Marconi, U., Mariani, S., Marin Benito, C., Marinangeli, M., Marino, P., Marks, J., Marshall, P. J., Martellotti, G., Martinazzoli, L., Martinelli, M., Martinez Santos, D., Martinez Vidal, F., Massafferri, A., Materok, M., Matev, R., Mathad, A., Mathe, Z., Matiunin, V., Matteuzzi, C., Mattioli, K. R., Mauri, A., Maurice, E., McCann, M., Mcconnell, L., McNab, A., McNulty, R., Mead, J. V., Meadows, B., Meaux, C., Meier, G., Meinert, N., Melnychuk, D., Meloni, S., Merk, M., Merli, A., Mikhasenko, M., Milanes, D. A., Millard, E., Minard, M.-N., Mineev, O., Minzoni, L., Mitchell, S. E., Mitreska, B., Mitzel, D. S., Mödden, A., Mogini, A., Moise, R. D., 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., Mukherjee, M., Mulder, M., Müller, D., Müller, K., Müller, V., Murphy, C. H., Murray, D., Muzzetto, P., Naik, P., Nakada, T., Nandakumar, R., Nandi, A., Nanut, T., Nasteva, I., Needham, M., Neri, N., Neubert, S., Neufeld, N., Newcombe, R., Nguyen, T. D., Nguyen-Mau, C., Niel, E. M., Nieswand, S., Nikitin, N., Nolte, N. S., Nunez, C., Oblakowska-Mucha, A., Obraztsov, V., Ogilvy, S., O’Hanlon, D. P., Oldeman, R., Onderwater, C. J. G., Osborn, J. D., Ossowska, A., Otalora Goicochea, J. M., Ovsiannikova, T., Owen, P., Oyanguren, A., Pais, P. R., Pajero, T., Palano, A., Palutan, M., Panshin, G., Papanestis, A., Pappagallo, M., Pappalardo, L. L., Pappenheimer, C., Parker, W., Parkes, C., Passaleva, G., Pastore, A., Patel, M., Patrignani, C., Pearce, A., Pellegrino, A., Pepe Altarelli, M., Perazzini, S., Pereima, D., Perret, P., Pescatore, L., Petridis, K., Petrolini, A., Petrov, A., Petrucci, S., Petruzzo, M., Pietrzyk, B., Pietrzyk, G., Pikies, M., Pili, M., Pinci, D., Pinzino, J., Pisani, F., Piucci, A., Placinta, V., Playfer, S., Plews, J., Plo Casasus, M., Polci, F., Poli Lener, M., Poliakova, M., Poluektov, A., Polukhina, N., Polyakov, I., Polycarpo, E., Pomery, G. J., Ponce, S., Popov, A., Popov, D., Poslavskii, S., Prasanth, K., Promberger, L., Prouve, C., Pugatch, V., Puig Navarro, A., Pullen, H., Punzi, G., Qian, W., Qin, J., Quagliani, R., Quintana, B., Raab, N. V., Rabadan Trejo, R. I., Rachwal, B., Rademacker, J. H., 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., Ricciardi, S., Richards, S., Rinnert, K., Robbe, P., Robert, A., Rodrigues, A. B., Rodrigues, E., Rodriguez Lopez, J. A., Roehrken, M., Roiser, S., Rollings, A., Romanovskiy, V., Romero Lamas, M., Romero Vidal, A., Roth, J. D., Rotondo, M., Rudolph, M. S., Ruf, T., Ruiz Vidal, J., Ryzka, J., Saborido Silva, J. J., Sagidova, N., Saitta, B., Sanchez Gras, C., Sanchez Mayordomo, C., Sanmartin Sedes, B., Santacesaria, R., Santamarina Rios, C., Santimaria, M., Santovetti, E., Sarpis, G., Sarti, A., Satriano, C., Satta, A., Saur, M., Savrina, D., Scantlebury Smead, L. G., Schael, S., Schellenberg, M., Schiller, M., Schindler, H., Schmelling, M., Schmelzer, T., Schmidt, B., Schneider, O., Schopper, A., Schreiner, H. F., Schubiger, M., Schulte, S., Schune, M. H., Schwemmer, R., Sciascia, B., Sciubba, A., Sellam, S., Semennikov, A., Sergi, A., Serra, N., Serrano, J., Sestini, L., Seuthe, A., Seyfert, P., Shangase, D. M., Shapkin, M., Shears, T., Shekhtman, L., Shevchenko, V., Shmanin, E., Shupperd, J. D., Siddi, B. G., Silva Coutinho, R., Silva de Oliveira, L., Simi, G., Simone, S., Skiba, I., Skidmore, N., Skwarnicki, T., Slater, M. W., Smeaton, J. G., Smetkina, A., Smith, E., Smith, I. T., Smith, M., Snoch, A., Soares, M., Soares Lavra, L., Sokoloff, M. D., Soler, F. J. P., Souza De Paula, B., Spaan, B., Spadaro Norella, E., Spradlin, P., Stagni, F., Stahl, M., Stahl, S., Stefko, P., Stefkova, S., Steinkamp, O., Stemmle, S., Stenyakin, O., Stepanova, M., Stevens, H., Stone, S., Stracka, S., Stramaglia, M. E., Straticiuc, M., Strokov, S., Sun, J., Sun, L., Sun, Y., Svihra, P., Swientek, K., Szabelski, A., Szumlak, T., Szymanski, M., Taneja, S., Tang, Z., Tekampe, T., Tellarini, G., Teubert, F., Thomas, E., Thomson, K. A., Tilley, M. J., Tisserand, V., T’Jampens, S., Tobin, M., Tolk, S., Tomassetti, L., Tonelli, D., Tou, D. Y., Tournefier, E., Traill, M., Tran, M. T., Trippl, C., Trisovic, A., Tsaregorodtsev, A., Tuci, G., Tully, A., Tuning, N., Ukleja, A., Usachov, A., Ustyuzhanin, A., Uwer, U., Vagner, A., Vagnoni, V., Valassi, A., Valenti, G., van Beuzekom, 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., Vernet, M., Veronesi, M., Vesterinen, M., Viana Barbosa, J. V., Vieira, D., Vieites Diaz, M., Viemann, H., Vilasis-Cardona, X., Vitkovskiy, A., Volkov, V., Vollhardt, A., Vom Bruch, D., Vorobyev, A., Vorobyev, V., Voropaev, N., Waldi, R., Walsh, J., Wang, J., Wang, M., Wang, Y., Wang, Z., Ward, D. R., Wark, H. M., Watson, N. K., Websdale, D., Weiden, A., Weisser, C., Westhenry, B. D. C., White, D. J., Whitehead, M., Wiedner, D., Wilkinson, G., Wilkinson, M., Williams, I., Williams, M., Williams, M. R. J., Williams, T., Wilson, F. F., Winn, M., Wislicki, W., Witek, M., Wormser, G., Wotton, S. A., Wu, H., Wyllie, K., Xiang, Z., Xiao, D., Xie, Y., Xing, H., Xu, A., Xu, L., Xu, M., Xu, Q., Xu, Z., Yang, Z., Yao, Y., Yeomans, L. E., Yin, H., Yu, J., Yuan, X., Yushchenko, O., Zarebski, K. A., Zavertyaev, M., Zdybal, M., Zeng, M., Zhang, D., Zhang, L., Zhang, S., Zhang, W. C., Zhang, Y., Zhelezov, A., Zheng, Y., Zhou, X., Zhou, Y., Zhu, X., Zhukov, V., Zonneveld, J. B., Zucchelli, S., and Apollo - University of Cambridge Repository
Subjects: Flavor physics, Regular Article - Experimental Physics, Hadron-Hadron scattering (experiments), Branching fraction, B physics
Abstract: The Cabibbo-suppressed semileptonic decay B+→pp¯μ+νμ is observed for the first time using a sample of pp collisions corresponding to an integrated luminosity of 1.0, 2.0 and 1.7 fb−1 at centre-of-mass energies of 7, 8 and 13 TeV, respectively. The differential branching fraction is measured as a function of the pp¯ invariant mass using the decay mode B+→ J/ψK+ for normalisation. The total branching fraction is measured to be ℬB+→pp¯μ+νμ=5.27−0.24+0.23±0.21±0.15×10−6, where the first uncertainty is statistical, the second systematic and the third is from the uncertainty on the branching fraction of the normalisation channel.
Published: 2020

28. Prospects for measurements with strange hadrons at LHCb

Author: J. Martin Camalich, C. Marin Benito, Teppei Kitahara, Marc-Olivier Bettler, Giancarlo D'Ambrosio, A. A. Alves Junior, Antonino Sergi, A. Brea Rodriguez, Cristina Lazzeroni, Jessica Prisciandaro, X. Cid Vidal, Diego Guadagnoli, K. A. Zarebski, Giacomo Graziani, A. Puig Navarro, M. Ramos Pernas, Veronika Chobanova, A. Casais Vidal, J. Dalseno, D. Martinez Santos, M. Lucio Martinez, V. Renaudin, Francesco Dettori, M. Moulson, Vladimir Gligorov, Andrea Contu, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), 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 Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)
Subjects: K+: rare decay, Hadron, hyperon, 01 natural sciences, High Energy Physics - Experiment, electron: pair production, High Energy Physics - Experiment (hep-ex), Flavor physics, High Energy Physics - Phenomenology (hep-ph), Hadron-Hadron scattering (experiments), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Physics, K+: mass, lepton: flavor: violation, hep-ph, K0(S): rare decay, Sigma: rare decay, muon: pair production, High Energy Physics - Phenomenology, CERN LHC Coll, Upgrade, Lambda: decay modes, K0(S): decay modes, upgrade, Branching fraction, Lambda: rare decay, numerical calculations: Monte Carlo, Particle Physics - Experiment, p p: scattering, Nuclear and High Energy Physics, Particle physics, K0(S): semileptonic decay, FOS: Physical sciences, Strangeness, strangeness, 0103 physical sciences, ddc:530, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, 010306 general physics, Particle Physics - Phenomenology, Xi-: decay modes, hep-ex, 010308 nuclear & particles physics, Hyperon, sensitivity, Omega-: decay modes, LHC-B, Rare decay, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], Beyond Standard Model, lcsh:QC770-798, p p: colliding beams
Abstract: This report details the capabilities of LHCb and its upgrades towards the study of kaons and hyperons. The analyses performed so far are reviewed, elaborating on the prospects for some key decay channels, while proposing some new measurements in LHCb to expand its strangeness research program., Version matching publication
Published: 2019
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29. Measurement of the ratio of branching fractions of the decays Λb0 → ψ(2S)Λ and Λb0 → J/ψΛ

Author: Aaij, R, Adeva, B, Adinolfi, M, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreotti, M, Andrews, JE, Appleby, RB, Archilli, F, Arnau Romeu, J, Artamonov, A, Artuso, M, Aslanides, E, Atzeni, M, Auriemma, G, Baalouch, M, Babuschkin, I, Bachmann, S, Back, JJ, Badalov, A, Baesso, C, Baker, S, Balagura, V, Baldini, W, Baranov, A, Barlow, RJ, Barschel, C, Barsuk, S, Barter, W, Baryshnikov, F, Batozskaya, V, Battista, V, Bay, A, Beaucourt, L, Beddow, J, Bedeschi, F, Bediaga, I, Beiter, A, Bel, LJ, Beliy, N, Bellee, V, Belloli, N, Belous, K, Belyaev, I, Bencivenni, G, Ben-Haim, E, Benson, S, Beranek, S, Berezhnoy, A, Bernet, R, Berninghoff, D, Bertholet, E, Bertolin, A, Betancourt, C, Betti, F, Bettler, MO, Bezshyiko, Ia, Bifani, S, Billoir, P, Birnkraut, A, Bizzeti, A, Bjørn, M, Blake, T, Blanc, F, Blusk, S, Bocci, V, Boettcher, T, Bondar, A, Bondar, N, Bordyuzhin, I, Borghi, S, Borisyak, M, Borsato, M, Bossu, F, Boubdir, M, Bowcock, TJV, Bowen, E, Bozzi, C, Braun, S, Brodzicka, J, Brundu, D, Buchanan, E, Burr, C, Bursche, A, Buytaert, J, and Byczynski, W
Subjects: Hadron-Hadron scattering, Flavor physics, Quantum Physics, Particle and Plasma Physics, hep-ex, Molecular, Branching fraction, Nuclear, Atomic, Nuclear & Particles Physics, B physics, Mathematical Physics
Abstract: Using pp collisions corresponding to 3 fb −1 integrated luminosity, recorded by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV, the ratio of branching fractionsℬ(Λb0→ψ(2S)Λ)/ℬ(Λb0→J/ψΛ)=0.513±0.023(stat)±0.016(syst)±0.011(ℬ)is determined. The first uncertainty is statistical, the second is systematic and the third is due to the external branching fractions used.[Figure not available: see fulltext.]
Published: 2019

30. Measurement of the ratio of branching fractions of the decays Λ b0 → ψ(2S)Λ and Λ b0 → J/ψΛ

Author: Aaij, R, Adeva, B, Adinolfi, M, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreotti, M, Andrews, JE, Appleby, RB, Archilli, F, Arnau Romeu, J, Artamonov, A, Artuso, M, Aslanides, E, Atzeni, M, Auriemma, G, Baalouch, M, Babuschkin, I, Bachmann, S, Back, JJ, Badalov, A, Baesso, C, Baker, S, Balagura, V, Baldini, W, Baranov, A, Barlow, RJ, Barschel, C, Barsuk, S, Barter, W, Baryshnikov, F, Batozskaya, V, Battista, V, Bay, A, Beaucourt, L, Beddow, J, Bedeschi, F, Bediaga, I, Beiter, A, Bel, LJ, Beliy, N, Bellee, V, Belloli, N, Belous, K, Belyaev, I, Bencivenni, G, Ben-Haim, E, Benson, S, Beranek, S, Berezhnoy, A, Bernet, R, Berninghoff, D, Bertholet, E, Bertolin, A, Betancourt, C, Betti, F, Bettler, MO, Bezshyiko, I, Bifani, S, Billoir, P, Birnkraut, A, Bizzeti, A, Bjørn, M, Blake, T, Blanc, F, Blusk, S, Bocci, V, Boettcher, T, Bondar, A, Bondar, N, Bordyuzhin, I, Borghi, S, Borisyak, M, Borsato, M, Bossu, F, Boubdir, M, Bowcock, TJV, Bowen, E, Bozzi, C, Braun, S, Brodzicka, J, Brundu, D, Buchanan, E, Burr, C, Bursche, A, Buytaert, J, and Byczynski, W
Subjects: Quantum Physics, hep-ex, Molecular, Nuclear & Particles Physics, Atomic, B physics, Mathematical Sciences, Hadron-Hadron scattering, Flavor physics, Particle and Plasma Physics, Physical Sciences, Branching fraction, Nuclear, Mathematical Physics
Abstract: Using pp collisions corresponding to 3 fb −1 integrated luminosity, recorded by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV, the ratio of branching fractionsℬ(Λb0→ψ(2S)Λ)/ℬ(Λb0→J/ψΛ)=0.513±0.023(stat)±0.016(syst)±0.011(ℬ)is determined. The first uncertainty is statistical, the second is systematic and the third is due to the external branching fractions used.[Figure not available: see fulltext.]
Published: 2019

31. Model-independent search strategy for the lepton-flavor-violating heavy Higgs boson decay to τμ at the LHC

Author: Ernesto Arganda, Nicolás I. Mileo, Alejandro Szynkman, Xabier Marcano, Roberto A. Morales, UAM. Departamento de Física Teórica, Laboratoire de Physique Théorique d'Orsay [Orsay] (LPT), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11), and Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics and Astronomy (miscellaneous), Higgs particle: decay, 01 natural sciences, High Energy Physics - Experiment, purl.org/becyt/ford/1 [https], LFV signal, tau, Boson, Physics, +tau+muon%22">Higgs particle --> tau muon, Large Hadron Collider, Higgs bosons, new physics, transverse energy: missing-energy, lepton: flavor: violation, Higgs particle: heavy, High Energy Physics - Phenomenology, CERN LHC Coll, Higgs particle: mass, kinematics, Flavor Physics, Higgs boson, LHC, Particle physics, Higgs Physics, lcsh:Astrophysics, Computer Science::Digital Libraries, muon, lcsh:QB460-466, 0103 physical sciences, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, Sensitivity (control systems), 010306 general physics, Engineering (miscellaneous), Ciencias Exactas, Muon, 010308 nuclear & particles physics, background, High Energy Physics::Phenomenology, Higgs bosons decay, Order (ring theory), Física, purl.org/becyt/ford/1.3 [https], sensitivity, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], Collider Physics, lcsh:QC770-798, muon: transverse momentum, High Energy Physics::Experiment, Energy (signal processing), Lepton
Abstract: In this work we present a model-independent search strategy at the LHC for heavy Higgs bosons decaying into a tau and a muon, $H/A \rightarrow \tau\mu$, showing a plausible tendency to improve the sensitivity obtained by the present experimental limits. This search strategy is performed for the Higgs boson mass range 1-5 TeV and uses as the most relevant kinematical variables, in order to discriminate signal against background, the transverse momenta of the muon and the tau together with the missing transverse energy. We estimate the exclusion limits at 95% C.L. and the significances for evidence and discovery at $\sqrt{s}$ = 14 TeV with $\cal{L}$ = 300 fb$^{-1}$, observing a growth in the sensitivities for high Higgs boson masses. Moreover, since the Higgs boson decay into a $\tau$-lepton pair may mimic our LFV signal, we also study the impact of the ditau channel on the exclusion limits and the significances for evidence and discovery. In particular, the impact on the exclusion limits of LFV heavy Higgs boson decays is significant when the ditau rate begins to compete with the corresponding to the $H/A \rightarrow \tau\mu$ decay., Comment: 13 pages, 7 figures. New appendix added. Published version
Published: 2019
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32. Measurement of CP observables in the process B 0 → DK *0 with two- and four-body D decays

Author: Aaij, R, Abellán Beteta, C, Adeva, B, Adinolfi, M, Aidala, CA, Ajaltouni, Z, Akar, S, Albicocco, P, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreotti, M, Andrews, JE, Archilli, F, Arnau Romeu, J, Artamonov, A, Artuso, M, Arzymatov, K, Aslanides, E, Atzeni, M, Audurier, B, Bachmann, S, Back, JJ, Baker, S, Balagura, V, Baldini, W, Baranov, A, Barlow, RJ, Barsuk, S, Barter, W, Bartolini, M, Baryshnikov, F, Batozskaya, V, Batsukh, B, Battig, A, Battista, V, Bay, A, Bedeschi, F, Bediaga, I, Beiter, A, Bel, LJ, Belavin, V, Belin, S, Beliy, N, Bellee, V, Belous, K, Belyaev, I, Bencivenni, G, Ben-Haim, E, Benson, S, Beranek, S, Berezhnoy, A, Bernet, R, Berninghoff, D, Bertholet, E, Bertolin, A, Betancourt, C, Betti, F, Bettler, MO, Bezshyiko, I, Bhasin, S, Bhom, J, Bieker, MS, Bifani, S, Billoir, P, Birnkraut, A, Bizzeti, A, Bjørn, M, Blago, MP, Blake, T, Blanc, F, Blusk, S, Bobulska, D, Bocci, V, BoenteGarcia, O, Boettcher, T, Boldyrev, A, Bondar, A, Bondar, N, Borghi, S, Borisyak, M, Borsato, M, Boubdir, M, Bowcock, TJV, Bozzi, C, Braun, S, BreaRodriguez, A, Brodski, M, Brodzicka, J, BrossaGonzalo, A, Brundu, D, and Apollo - University of Cambridge Repository
Subjects: Flavor physics, CP violation, Hadron-Hadron scattering (experiments), TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, CKM angle gamma, B physics
Abstract: Measurements of $C\!P$ observables in $B^0 \to DK^{*0}$ decays are presented, where $D$ represents a superposition of $D^0$ and $\bar{D}^0$ states. The $D$ meson is reconstructed in the two-body final states $K^+\pi^-$, $\pi^+ K^-$, $K^+K^-$ and $\pi^+\pi^-$, and, for the first time, in the four-body final states $K^+\pi^-\pi^+\pi^-$, $\pi^+ K^-\pi^+\pi^-$ and $\pi^+\pi^-\pi^+\pi^-$. The analysis uses a sample of neutral $B$ mesons produced in proton-proton collisions, corresponding to an integrated luminosity of 1.0, 2.0 and 1.8 $\rm fb^{-1}$ collected with the LHCb detector at centre-of-mass energies of $\sqrt{s} = $ 7, 8 and 13 TeV, respectively. First observations of the decays $B^0 \to D(\pi^+ K^-)K^{*0}$ and $B^0 \to D(\pi^+\pi^-\pi^+\pi^-)K^{*0}$ are obtained. The measured observables are interpreted in terms of the $C\!P$-violating weak phase $\gamma$.
Published: 2019

33. A method to determine |Vcb| at the weak scale in top decays at the LHC

Author: Paul Fraser Harrison and Vangelis Vladimirov
Subjects: Semileptonic decay, Nuclear and High Energy Physics, Particle physics, Hadron, FOS: Physical sciences, Jet (particle physics), Computer Science::Digital Libraries, 01 natural sciences, B physics, High Energy Physics - Experiment, Flavor physics, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), Hadron-Hadron scattering (experiments), 0103 physical sciences, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, 010306 general physics, Physics, Large Hadron Collider, 010308 nuclear & particles physics, Cabibbo–Kobayashi–Maskawa matrix, Branching fraction, High Energy Physics::Phenomenology, Order (ring theory), High Energy Physics - Phenomenology, Top physics, lcsh:QC770-798, High Energy Physics::Experiment, Energy (signal processing)
Abstract: Until now, the Cabibbo Kobayashi Maskawa matrix element, $|V_{cb}|$, has always been measured in $B$ decays, i.e.~at an energy scale $q_b\sim \frac{m_b}{2}$, far below the weak scale. We consider here the possibility of measuring it close to the weak scale, at $q_W\sim m_W$, in top decays at the Large Hadron Collider (LHC). Our proposed method would use data from the LHC experiments in hadronic top decays $t\rightarrow bW\rightarrow b\overline{b} c$, tagged by the semileptonic decay of the associated top. We estimate the uncertainty of such a measurement, as a function of present and potential future experimental jet flavour-tagging performances, and conclude that first measurements using the data collected during 2016 - 2018 could yield a fractional error on \Vcb\ of order 7\% per experiment. We also give projected performances at higher luminosities, which could yield sensitivity to any Standard Model running of \Vcb\ below the weak scale, if present., Comment: 15 pages, 1 figures. Changes for V3: removed earlier Fig. 1, associated text and citations, added one new citation
Published: 2019
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34. Amplitude analysis of Bs0 → KS0 K ± π ∓ decays

Author: Aaij, R, Abellán Beteta, C, Adeva, B, Adinolfi, M, Aidala, CA, Ajaltouni, Z, Akar, S, Albicocco, P, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreotti, M, Andrews, JE, Archilli, F, Arnau Romeu, J, Artamonov, A, Artuso, M, Arzymatov, K, Aslanides, E, Atzeni, M, Audurier, B, Bachmann, S, Back, JJ, Baker, S, Balagura, V, Baldini, W, Baranov, A, Barlow, RJ, Barrand, GC, Barsuk, S, Barter, W, Bartolini, M, Baryshnikov, F, Batozskaya, V, Batsukh, B, Battig, A, Battista, V, Bay, A, Beddow, J, Bedeschi, F, Bediaga, I, Beiter, A, Bel, LJ, Belin, S, Beliy, N, Bellee, V, Belloli, N, Belous, K, Belyaev, I, Bencivenni, G, Ben-Haim, E, Benson, S, Beranek, S, Berezhnoy, A, Bernet, R, Berninghoff, D, Bertholet, E, Bertolin, A, Betancourt, C, Betti, F, Bettler, MO, Bezshyiko, I, Bhasin, S, Bhom, J, Bieker, MS, Bifani, S, Billoir, P, Birnkraut, A, Bizzeti, A, Bjørn, M, Blago, MP, Blake, T, Blanc, F, Blusk, S, Bobulska, D, Bocci, V, Boente Garcia, O, Boettcher, T, Bondar, A, Bondar, N, Borghi, S, Borisyak, M, Borsato, M, Boubdir, M, Bowcock, TJV, Bozzi, C, Braun, S, Brodski, M, Brodzicka, J, Brossa Gonzalo, A, and Apollo - University of Cambridge Repository
Subjects: Flavor physics, CP violation, Hadron-Hadron scattering (experiments), Branching fraction, B physics
Abstract: The first untagged decay-time-integrated amplitude analysis of $B^{0}_{s} \rightarrow K^{0}_{\textrm{S}} K^{\pm}\pi^{\mp}$ decays is performed using a sample corresponding to $3.0\,$fb$^{-1}$ of $pp$ collision data recorded with the LHCb detector during 2011 and 2012. The data are described with an amplitude model that contains contributions from the intermediate resonances $K^{*}(892)^{0,+}$, $K^*_2(1430)^{0,+}$ and $K^*_0(1430)^{0,+}$, and their charge conjugates. Measurements of the branching fractions of the decay modes $B^{0}_{s} \rightarrow K^{*}(892)^{\pm}K^{\mp}$ and $B^{0}_{s} \rightarrow K^{*}(892)^{0}\kern 0.2em\overline{\kern -0.2em K}{}^{0}, \kern 0.2em\overline{\kern -0.2em K}{}^{*}(892)^{0}K^{0}$ are in agreement with, and more precise than, previous results. The decays $B^{0}_{s} \rightarrow K^*_0(1430)^{\pm} K^{\mp}$ and $B^{0}_{s} \rightarrow K^{*}_{0}(1430)^{0}\kern 0.2em\overline{\kern -0.2em K}{}^{0}, \kern 0.2em\overline{\kern -0.2em K}{}^{*}_{0}(1430)^{0}K^{0}$ are observed for the first time, each with significance over 10 standard deviations.
Published: 2019

35. Flavor physics: Precision as an avenue to discovery

Author: Diego Guadagnoli, Laboratoire d'Annecy-le-Vieux de Physique Théorique (LAPTH), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Université de Savoie, Marie-Noëlle Minard(minard@lapp.in2p3.fr), and Guadagnoli, Diego
Subjects: K0 anti-K0: oscillation, Physique de la Saveur, flavor changing, Physics beyond the Standard Model, 12.15.Mm, 12.60.Fr, computer.software_genre, 01 natural sciences, Kaon Physics, B-mesons, Flavor physics, 12.60.Rc, LHCb experiment, meson–antimeson oscillations, ComputingMilieux_MISCELLANEOUS, Standard model (cryptography), Physics, decay rate, new physics, Effective Field Theories, CERN LEP Stor, 12.15.Lk, tension, oscillation, Théories de Champs Effectives, Atomic and Molecular Physics, and Optics, CERN LHC Coll, CP violation, Nuclear and High Energy Physics, Flavour Physics, kaons, 12.38.Gc, flavor-changing neutral currents, Machine learning, rare decays, 0103 physical sciences, CP: violation, numerical calculations, 010306 general physics, flavor, 010308 nuclear & particles physics, business.industry, neutral current: flavor changing, Physique des Kaons, 12.15.Ji, Astronomy and Astrophysics, B/s: rare decay, 12.60.Cn, LHC-B, [PHYS.HPHE] Physics [physics]/High Energy Physics - Phenomenology [hep-ph], Automatic Keywords, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], Artificial intelligence, business, computer
Abstract: This paper describes the work pursued in the years 2008–2013 on improving the Standard Model prediction of selected flavor-physics observables. The latter includes: (1) [Formula: see text], that quantifies indirect CP violation in the [Formula: see text] system and (2) the very rare decay [Formula: see text], recently measured at the LHC. Concerning point (1), the paper describes our reappraisal of the long-distance contributions to [Formula: see text],[Formula: see text] that have permitted to unveil a potential tension between CP violation in the [Formula: see text]- and [Formula: see text]-system. Concerning point (2), the paper gives a detailed account of various systematic effects pointed out in Ref. 4 and affecting the Standard Model [Formula: see text] decay rate at the level of 10% — hence large enough to be potentially misinterpreted as nonstandard physics, if not properly included. The paper further describes the multifaceted importance of the [Formula: see text] decays as new physics probes, for instance how they compare with [Formula: see text]-peak observables at LEP, following the effective-theory approach of Ref. 5. Both cases (1) and (2) offer clear examples in which the pursuit of precision in Standard Model predictions offered potential avenues to discovery. Finally, this paper describes the impact of the above results on the literature, and what is the further progress to be expected on these and related observables.
Published: 2020
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36. A measurement of the CP asymmetry difference between Λc+ → pK − K + and pπ−π+ decays

Author: Aaij, R, Adeva, B, Adinolfi, M, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreotti, M, Andrews, JE, Appleby, RB, Archilli, F, d’Argent, P, Arnau Romeu, J, Artamonov, A, Artuso, M, Aslanides, E, Atzeni, M, Auriemma, G, Baalouch, M, Babuschkin, I, Bachmann, S, Back, JJ, Badalov, A, Baesso, C, Baker, S, Balagura, V, Baldini, W, Baranov, A, Barlow, RJ, Barschel, C, Barsuk, S, Barter, W, Baryshnikov, F, Batozskaya, V, Battista, V, Bay, A, Beaucourt, L, Beddow, J, Bedeschi, F, Bediaga, I, Beiter, A, Bel, LJ, Beliy, N, Bellee, V, Belloli, N, Belous, K, Belyaev, I, Ben-Haim, E, Bencivenni, G, Benson, S, Beranek, S, Berezhnoy, A, Bernet, R, Berninghoff, D, Bertholet, E, Bertolin, A, Betancourt, C, Betti, F, Bettler, MO, van Beuzekom, M, Bezshyiko, I, Bifani, S, Billoir, P, Birnkraut, A, Bizzeti, A, Bjørn, M, Blake, T, Blanc, F, Blusk, S, Bocci, V, Boettcher, T, Bondar, A, Bondar, N, Bordyuzhin, I, Borghi, S, Borisyak, M, Borsato, M, Bossu, F, Boubdir, M, Bowcock, TJV, Bowen, E, Bozzi, C, Braun, S, Brodzicka, J, Brundu, D, Buchanan, E, Burr, C, and Bursche, A
Subjects: Quantum Physics, hep-ex, Molecular, Nuclear & Particles Physics, Atomic, Mathematical Sciences, Hadron-Hadron scattering, Flavor physics, CP violation, Particle and Plasma Physics, Physical Sciences, Nuclear, Mathematical Physics, Charm physics
Abstract: The difference between the CP asymmetries in the decays Λc+ → pK−K+ and Λc+ → pπ−π+ is presented. Proton-proton collision data taken at centre-of-mass energies of 7 and 8 TeV collected by the LHCb detector in 2011 and 2012 are used, corresponding to an integrated luminosity of 3 fb−1. The Λc+ candidates are reconstructed as part of the Λb0 →Λc+μ−X decay chain. In order to maximize the cancellation of production and detection asymmetries in the difference, the final-state kinematic distributions of the two samples are aligned by applying phase-space-dependent weights to the Λc+ → pπ−π+ sample. This alters the definition of the integrated CP asymmetry to ACPwgt(pπ−π+). Both samples are corrected for reconstruction and selection efficiencies across the five-dimensional Λc+ decay phase space. The difference in CP asymmetries is found to be ΔACPwgt=ACP(pK−K+)−ACPwgt(pπ−π+)=(0.30±0.91±0.61)%, where the first uncertainty is statistical and the second is systematic.[Figure not available: see fulltext.].
Published: 2018

37. Search for the lepton-flavour violating decays B( s)0 → e±μ∓

Author: The LHCb collaboration, Aaij, R, Adeva, B, Adinolfi, M, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreotti, M, Andrews, JE, Appleby, RB, Archilli, F, d’Argent, P, Arnau Romeu, J, Artamonov, A, Artuso, M, Aslanides, E, Atzeni, M, Auriemma, G, Baalouch, M, Babuschkin, I, Bachmann, S, Back, JJ, Badalov, A, Baesso, C, Baker, S, Balagura, V, Baldini, W, Baranov, A, Barlow, RJ, Barschel, C, Barsuk, S, Barter, W, Baryshnikov, F, Batozskaya, V, Battista, V, Bay, A, Beaucourt, L, Beddow, J, Bedeschi, F, Bediaga, I, Beiter, A, Bel, LJ, Beliy, N, Bellee, V, Belloli, N, Belous, K, Belyaev, I, Ben-Haim, E, Bencivenni, G, Benson, S, Beranek, S, Berezhnoy, A, Bernet, R, Berninghoff, D, Bertholet, E, Bertolin, A, Betancourt, C, Betti, F, Bettler, M-O, van Beuzekom, M, Bezshyiko, Ia, Bifani, S, Billoir, P, Birnkraut, A, Bizzeti, A, Bjørn, M, Blake, T, Blanc, F, Blusk, S, Bocci, V, Boettcher, T, Bondar, A, Bondar, N, Bordyuzhin, I, Borgheresi, A, Borghi, S, Borisyak, M, Borsato, M, Bossu, F, Boubdir, M, Bowcock, TJV, Bowen, E, Bozzi, C, Braun, S, Britton, T, Brodzicka, J, and Brundu, D
Subjects: Hadron-Hadron scattering, Flavor physics, Quantum Physics, Particle and Plasma Physics, Rare decay, hep-ex, Molecular, Branching fraction, Nuclear, Atomic, Nuclear & Particles Physics, B physics, Mathematical Physics
Abstract: A search for the lepton-flavour violating decays Bs0 → e±μ∓ and B0 → e±μ∓ is performed based on a sample of proton-proton collision data corresponding to an integrated luminosity of 3 fb−1, collected with the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. The observed yields are consistent with the background-only hypothesis. Upper limits on the branching fraction of the Bs0 → e±μ∓ decays are evaluated both in the hypotheses of an amplitude completely dominated by the heavy eigenstate and by the light eigenstate. The results are @@ℬ(Bs0→e)
Published: 2018

38. Measurements of the branching fractions of Λ c+ → pπ − π +, Λ c+ → pK−K+, and Λ c+ → pπ −K+

Author: Aaij, R, Adeva, B, Adinolfi, M, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreotti, M, Andrews, JE, Appleby, RB, Archilli, F, d’Argent, P, Arnau Romeu, J, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Baalouch, M, Babuschkin, I, Bachmann, S, Back, JJ, Badalov, A, Baesso, C, Baker, S, Balagura, V, Baldini, W, Baranov, A, Barlow, RJ, Barschel, C, Barsuk, S, Barter, W, Baryshnikov, F, Batozskaya, V, Battista, V, Bay, A, Beaucourt, L, Beddow, J, Bedeschi, F, Bediaga, I, Beiter, A, Bel, LJ, Beliy, N, Bellee, V, Belloli, N, Belous, K, Belyaev, I, Ben-Haim, E, Bencivenni, G, Benson, S, Beranek, S, Berezhnoy, A, Bernet, R, Berninghoff, D, Bertholet, E, Bertolin, A, Betancourt, C, Betti, F, Bettler, MO, van Beuzekom, M, Bezshyiko, I, Bifani, S, Billoir, P, Birnkraut, A, Bitadze, A, Bizzeti, A, Bjørn, M, Blake, T, Blanc, F, Blouw, J, Blusk, S, Bocci, V, Boettcher, T, Bondar, A, Bondar, N, Bonivento, W, Bordyuzhin, I, Borgheresi, A, Borghi, S, Borisyak, M, Borsato, M, Bossu, F, Boubdir, M, Bowcock, TJV, Bowen, E, Bozzi, C, Braun, S, Britton, T, and Brodzicka, J
Subjects: Quantum Physics, hep-ex, Molecular, Nuclear & Particles Physics, Atomic, Mathematical Sciences, Hadron-Hadron scattering, Flavor physics, Particle and Plasma Physics, Physical Sciences, Branching fraction, Nuclear, Spectroscopy, Mathematical Physics, Charm physics
Abstract: The ratios of the branching fractions of the decays Λc+ → pπ−π+, Λc+ → pK−K+, and Λc+ → pπ−K+ with respect to the Cabibbo-favoured Λc+ → pK−π+ decay are measured using proton-proton collision data collected with the LHCb experiment at a 7 TeV centre-of-mass energy and corresponding to an integrated luminosity of 1.0 fb−1:ℬ(Λc+→p+)ℬ(Λc+→pK−π+)=(7.44±0.08±0.18)%,ℬ(Λc+→pK−K+)ℬ(Λc+→pK−π+)=(1.70±0.03±0.03)%ℬ(Λc+→pπ−K+)ℬ(Λc+→pK−π+)=(0.165±0.015±0.005)%,where the uncertainties are statistical and systematic, respectively. These results are the most precise measurements of these quantities to date. When multiplied by the world-average value for ℬ(Λc+→pK−π+), the corresponding branching fractions areℬ(Λc+→p+)=(4.72±0.05±0.11±0.25)×10−3,ℬ(Λc+→pK−K+)=(1.08±0.02±0.02±0.06)×10−3,ℬ(Λc+→pπ−K+)=(1.04±0.09±0.03±0.05)×10−4,where the final uncertainty is due to ℬ(Λc+→pK−π+).[Figure not available: see fulltext.].
Published: 2018

39. Search for the lepton-flavour violating decays B (s)0 → e ± μ ∓

Author: Aaij, R, Adeva, B, Adinolfi, M, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreotti, M, Andrews, JE, Appleby, RB, Archilli, F, d’Argent, P, Arnau Romeu, J, Artamonov, A, Artuso, M, Aslanides, E, Atzeni, M, Auriemma, G, Baalouch, M, Babuschkin, I, Bachmann, S, Back, JJ, Badalov, A, Baesso, C, Baker, S, Balagura, V, Baldini, W, Baranov, A, Barlow, RJ, Barschel, C, Barsuk, S, Barter, W, Baryshnikov, F, Batozskaya, V, Battista, V, Bay, A, Beaucourt, L, Beddow, J, Bedeschi, F, Bediaga, I, Beiter, A, Bel, LJ, Beliy, N, Bellee, V, Belloli, N, Belous, K, Belyaev, I, Ben-Haim, E, Bencivenni, G, Benson, S, Beranek, S, Berezhnoy, A, Bernet, R, Berninghoff, D, Bertholet, E, Bertolin, A, Betancourt, C, Betti, F, Bettler, MO, van Beuzekom, M, Bezshyiko, I, Bifani, S, Billoir, P, Birnkraut, A, Bizzeti, A, Bjørn, M, Blake, T, Blanc, F, Blusk, S, Bocci, V, Boettcher, T, Bondar, A, Bondar, N, Bordyuzhin, I, Borgheresi, A, Borghi, S, Borisyak, M, Borsato, M, Bossu, F, Boubdir, M, Bowcock, TJV, Bowen, E, Bozzi, C, Braun, S, Britton, T, Brodzicka, J, Brundu, D, and Buchanan, E
Subjects: Quantum Physics, hep-ex, Molecular, Nuclear & Particles Physics, Atomic, B physics, Mathematical Sciences, Hadron-Hadron scattering, Flavor physics, Particle and Plasma Physics, Rare decay, Physical Sciences, Branching fraction, Nuclear, Mathematical Physics
Abstract: A search for the lepton-flavour violating decays Bs0 → e±μ∓ and B0 → e±μ∓ is performed based on a sample of proton-proton collision data corresponding to an integrated luminosity of 3 fb−1, collected with the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. The observed yields are consistent with the background-only hypothesis. Upper limits on the branching fraction of the Bs0 → e±μ∓ decays are evaluated both in the hypotheses of an amplitude completely dominated by the heavy eigenstate and by the light eigenstate. The results are @@ℬ(Bs0→e)
Published: 2018

40. Measurements of the branching fractions of Λc+ → pπ−π+, Λc+ → pK−K+, and Λc+ → pπ−K+

Author: The LHCb collaboration, Aaij, R, Adeva, B, Adinolfi, M, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreotti, M, Andrews, JE, Appleby, RB, Archilli, F, d’Argent, P, Arnau Romeu, J, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Baalouch, M, Babuschkin, I, Bachmann, S, Back, JJ, Badalov, A, Baesso, C, Baker, S, Balagura, V, Baldini, W, Baranov, A, Barlow, RJ, Barschel, C, Barsuk, S, Barter, W, Baryshnikov, F, Batozskaya, V, Battista, V, Bay, A, Beaucourt, L, Beddow, J, Bedeschi, F, Bediaga, I, Beiter, A, Bel, LJ, Beliy, N, Bellee, V, Belloli, N, Belous, K, Belyaev, I, Ben-Haim, E, Bencivenni, G, Benson, S, Beranek, S, Berezhnoy, A, Bernet, R, Berninghoff, D, Bertholet, E, Bertolin, A, Betancourt, C, Betti, F, Bettler, M-O, van Beuzekom, M, Bezshyiko, Ia, Bifani, S, Billoir, P, Birnkraut, A, Bitadze, A, Bizzeti, A, Bjørn, M, Blake, T, Blanc, F, Blouw, J, Blusk, S, Bocci, V, Boettcher, T, Bondar, A, Bondar, N, Bonivento, W, Bordyuzhin, I, Borgheresi, A, Borghi, S, Borisyak, M, Borsato, M, Bossu, F, Boubdir, M, Bowcock, TJV, Bowen, E, Bozzi, C, Braun, S, and Britton, T
Subjects: Hadron-Hadron scattering, Flavor physics, Quantum Physics, Particle and Plasma Physics, hep-ex, Molecular, Branching fraction, Nuclear, Atomic, Nuclear & Particles Physics, Spectroscopy, Mathematical Physics, Charm physics
Abstract: The ratios of the branching fractions of the decays Λc+ → pπ−π+, Λc+ → pK−K+, and Λc+ → pπ−K+ with respect to the Cabibbo-favoured Λc+ → pK−π+ decay are measured using proton-proton collision data collected with the LHCb experiment at a 7 TeV centre-of-mass energy and corresponding to an integrated luminosity of 1.0 fb−1:ℬ(Λc+→p+)ℬ(Λc+→pK−π+)=(7.44±0.08±0.18)%,ℬ(Λc+→pK−K+)ℬ(Λc+→pK−π+)=(1.70±0.03±0.03)%ℬ(Λc+→pπ−K+)ℬ(Λc+→pK−π+)=(0.165±0.015±0.005)%,where the uncertainties are statistical and systematic, respectively. These results are the most precise measurements of these quantities to date. When multiplied by the world-average value for ℬ(Λc+→pK−π+), the corresponding branching fractions areℬ(Λc+→p+)=(4.72±0.05±0.11±0.25)×10−3,ℬ(Λc+→pK−K+)=(1.08±0.02±0.02±0.06)×10−3,ℬ(Λc+→pπ−K+)=(1.04±0.09±0.03±0.05)×10−4,where the final uncertainty is due to ℬ(Λc+→pK−π+).[Figure not available: see fulltext.].
Published: 2018

41. A measurement of the CP asymmetry difference between Λc+ → pK−K+ and pπ−π+ decays

Author: The LHCb collaboration, Aaij, R, Adeva, B, Adinolfi, M, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreotti, M, Andrews, JE, Appleby, RB, Archilli, F, d’Argent, P, Arnau Romeu, J, Artamonov, A, Artuso, M, Aslanides, E, Atzeni, M, Auriemma, G, Baalouch, M, Babuschkin, I, Bachmann, S, Back, JJ, Badalov, A, Baesso, C, Baker, S, Balagura, V, Baldini, W, Baranov, A, Barlow, RJ, Barschel, C, Barsuk, S, Barter, W, Baryshnikov, F, Batozskaya, V, Battista, V, Bay, A, Beaucourt, L, Beddow, J, Bedeschi, F, Bediaga, I, Beiter, A, Bel, LJ, Beliy, N, Bellee, V, Belloli, N, Belous, K, Belyaev, I, Ben-Haim, E, Bencivenni, G, Benson, S, Beranek, S, Berezhnoy, A, Bernet, R, Berninghoff, D, Bertholet, E, Bertolin, A, Betancourt, C, Betti, F, Bettler, MO, van Beuzekom, M, Bezshyiko, Ia, Bifani, S, Billoir, P, Birnkraut, A, Bizzeti, A, Bjørn, M, Blake, T, Blanc, F, Blusk, S, Bocci, V, Boettcher, T, Bondar, A, Bondar, N, Bordyuzhin, I, Borghi, S, Borisyak, M, Borsato, M, Bossu, F, Boubdir, M, Bowcock, TJV, Bowen, E, Bozzi, C, Braun, S, Brodzicka, J, Brundu, D, Buchanan, E, and Burr, C
Subjects: Hadron-Hadron scattering, Flavor physics, Quantum Physics, CP violation, Particle and Plasma Physics, hep-ex, Molecular, Nuclear, Atomic, Nuclear & Particles Physics, Mathematical Physics, Charm physics
Abstract: The difference between the CP asymmetries in the decays Λc+ → pK−K+ and Λc+ → pπ−π+ is presented. Proton-proton collision data taken at centre-of-mass energies of 7 and 8 TeV collected by the LHCb detector in 2011 and 2012 are used, corresponding to an integrated luminosity of 3 fb−1. The Λc+ candidates are reconstructed as part of the Λb0 →Λc+μ−X decay chain. In order to maximize the cancellation of production and detection asymmetries in the difference, the final-state kinematic distributions of the two samples are aligned by applying phase-space-dependent weights to the Λc+ → pπ−π+ sample. This alters the definition of the integrated CP asymmetry to ACPwgt(pπ−π+). Both samples are corrected for reconstruction and selection efficiencies across the five-dimensional Λc+ decay phase space. The difference in CP asymmetries is found to be ΔACPwgt=ACP(pK−K+)−ACPwgt(pπ−π+)=(0.30±0.91±0.61)%, where the first uncertainty is statistical and the second is systematic.[Figure not available: see fulltext.].
Published: 2018

42. Measurements of the branching fractions of Λ+c → pπ−π+, Λ+c → pK−K+, and Λ+c → pπ−K+

Author: Alla Nogay, L. Garrido, Carmelo D'Ambrosio, Jean François Marchand, Oleg Stenyakin, C. Fitzpatrick, Christopher Burr, Max Neuner, Silvia Borghi, Jonas Rademacker, M. Karacson, Stephen M. Stahl, N. Neufeld, Sofia Kotriakhova, Violetta Cogoni, E. Grauges, Pavol Stefko, M. Ebert, Axel Kevin Kuonen, Luca Pescatore, Jakub Moron, J. Molina Rodriguez, Ryan Calladine, L. Del Buono, Murdo Traill, Svende Braun, Eugenia Price, Plamen Hristov Hopchev, I. Raniuk, K. Wyllie, Luca Federici, B. Pietrzyk, M. Rama, F. Fontanelli, G. Manca, A. Romero Vidal, E. Cogneras, Elnur Sadykhov, C. Hombach, A. Semennikov, M. Merk, Y. H. Zheng, O. Schneider, Pierre Billoir, Simone Stracka, C. J. G. Onderwater, Matthieu Kecke, Adam Davis, Wander Baldini, Victor Renaudin, P. Alvarez Cartelle, Konstantin Gizdov, Wiktor Byczynski, Kenneth Wraight, Maxime Vernet, G. Mancinelli, Antonino Sergi, T. Boettcher, S. Esen, W. Wislicki, Karol Hennessy, M. Vieites Diaz, Vladimir Macko, I. Nasteva, B. Sanmartin Sedes, I. Shapoval, S. A. Wotton, Rudolf Oldeman, Nicoletta Belloli, Renato Quagliani, Lucio Anderlini, Giovanni Veneziano, C. Göbel, Sandra Amato, K. Belous, A. Dovbnya, J. J. Walsh, Daniel Patrick O'Hanlon, M. Charles, Mark Wilkinson, Roland Waldi, D. Websdale, Massimiliano Fiorini, J. Dalseno, F. Meier, L. Beaucourt, C. Parkes, Silvia Gambetta, Thomas N. Williams, Francesco Dettori, L. M. Garcia Martin, B. Couturier, R. A. Fini, George Coombs, Vladislav Balagura, D. Hill, Maurizio Martinelli, M. Szczekowski, C. Khurewathanakul, Tara Shears, Jolanta Brodzicka, Tatiana Likhomanenko, S.-G. Chitic, Tatsiana Klimkovich, P. Spradlin, Georgios Chatzikonstantinidis, Samuel Maddrell-Mander, C. Santamarina Rios, Titus Mombächer, V. Syropoulos, G. D. Lafferty, Mika Vesterinen, A. Popov, David Loh, Oliver Lupton, Robert Appleby, Teng Li, Barbara Sciascia, Boris Quintana, A. Falabella, S. Amerio, Biagio Saitta, Dmitrii Maisuzenko, P. M. Manning, Hans Dijkstra, L. Silva de Oliveira, Anton Poluektov, Lorenzo Sestini, A. Gallas Torreira, G. Martellotti, Xiaofeng Zhu, C. Remon Alepuz, A. Papanestis, Laurent Dufour, S. Schael, Nicola Neri, Maxim Borisyak, C. Vázquez Sierra, Dean Charles Forshaw, A. Grecu, L. Sun, X. Han, Andreas Weiden, Simon Nieswand, Valery Zhukov, F. Kruse, Andrey Ustyuzhanin, Timofei Maltsev, J. Serrano, Stephane T'Jampens, Anita Nandi, E. Govorkova, Harald Viemann, Francesca Dordei, Alexander Leflat, Lukas Gruber, A. Tsaregorodtsev, Xia-Ji Liu, C. Wallace, Serhii Koliiev, Andrea Mogini, Bernardo Adeva, W. D. Hulsbergen, S. Ricciardi, R. Le Gac, Frederic Machefert, Sheldon Stone, E. Furfaro, Alexandra Paige Rollings, David Chamont, Andrew Crocombe, Z. Mathe, S. Simone, K. Carvalho Akiba, S. De Capua, Y.Y. Li, Mariana Rihl, F. J. P. Soler, Varvara Batozskaya, William Barter, Hal Evans, Christoph Frei, R. Santacesaria, Konstantinos Petridis, J. A. Rodriguez Lopez, Giacomo Graziani, Vlad-Mihai Placinta, C. Hadjivasiliou, J. H. Lopes, Andrey Tayduganov, Veronika Chobanova, Y. Zhang, Malgorzata Pikies, S. Ali, S. C. Haines, L. Zhang, Ph. Charpentier, A. Alfonso Albero, G. Wormser, A. Hicheur, Ia. Bezshyiko, Feng Jiang, Matthieu Marinangeli, Gerard Fernandez, J. Wimberley, Alexander Malinin, V. Franco Lima, S. Filippov, John William Ronayne, E. Lemos Cid, T. J. V. Bowcock, Giulia Tellarini, S. Blusk, M. De Serio, J. García Pardiñas, D. Lacarrere, Jennifer Brigitta Zonneveld, J. Maratas, Matthew James Tilley, Jessica Prisciandaro, Nathanael Farley, Mick Mulder, Alessio Sarti, P. Henrard, Nikolay Nikitin, S. Tolk, O. De Aguiar Francisco, Alessandro Camboni, W. Qian, Fedor Baryshnikov, Egor Khairullin, V. Volkov, F. Blanc, Julien Cogan, F. Da Cunha Marinho, Daniel Martin Saunders, S. Vecchi, Lucian Cojocariu, Mark Smith, A. Bertolin, R. Lindner, Y. N. Gao, Lucia Grillo, C. Matteuzzi, Adam Dendek, R. Matev, B. Rachwal, Dmitry Golubkov, L. Shekhtman, Benoit Viaud, Alessio Piucci, V. Vorobyev, H. Cai, M. Ferro-Luzzi, M. Witek, M. Needham, Johannes Albrecht, A. B. Rodrigues, A. Lusiani, R. Vazquez Gomez, D. Savrina, Philippe d'Argent, Chung Nguyen-Mau, Ana Trisovic, P. E. L. Clarke, J. E. Andrews, A. McNab, V. Gibson, Anna Ossowska, Nathan Jurik, A. Dosil Suárez, T. E. Latham, Malcolm John, D. Galli, Davide Fazzini, Yasmine Amhis, Sebastien Ponce, Gabriela Johanna Pomery, Angelo Carbone, Jaap Velthuis, William Parker, Emilie Bertholet, J. Harrison, F. Polci, D. Martinez Santos, Xiao-Rui Lyu, M. Gandelman, P. Di Nezza, S. Klaver, G. Punzi, Mirco Dorigo, Vitalii Lisovskyi, T. Ruf, J. Jalocha, Roland Bernet, E. Picatoste Olloqui, Daniel Vieira, J. J. Saborido Silva, Thierry Gys, M. Patel, N. K. Watson, Marie Helene Schune, D. Tonelli, James Vincent Mead, R. McNulty, M. Corvo, M. Schlupp, P. Krokovny, Eduardo Rodrigues, O. Maev, Emma Buchanan, P. Rodriguez Perez, M. Morandin, R. Cenci, Sebastian Neubert, Michal Dziewiecki, U. Uwer, Tomasz Skwarnicki, Sebastian Bachmann, F. Archilli, Mark Whitehead, V. Obraztsov, C. Sanchez Mayordomo, H. V. Cliff, M. Lucio Martinez, Stephan Eisenhardt, M. Tresch, E. Gushchin, Federico Alessio, C. Marin Benito, Dmitry Popov, R. Nandakumar, Christopher Betancourt, Louis Henry, Zhuoming Li, A. C. dos Reis, U. Egede, H. Luo, Marianna Fontana, M. Poli Lener, Timothy Evans, Paolo Gandini, Tobias Tekampe, Albert Bursche, Simon Akar, Christian Voß, Simone Bifani, P. Griffith, Paolo Ciambrone, M. P. Williams, S. Malde, Srikanth Sridharan, V. Bocci, Patrick Mackowiak, Michael Kolpin, G. Lanfranchi, M.-N. Minard, Patrick Robbe, Laura Gavardi, A. Ukleja, Eluned Smith, Klaus Fohl, E. Bowen, D. Pinci, A. Satta, J. M. Otalora Goicochea, M. Sirendi, Wolfgang Funk, Davide Brundu, P. Tsopelas, Arnaud Robert, A. Bay, C. Patrignani, Olga Morgunova, J. A. de Vries, Andrea Contu, Albert Comerma-Montells, Sarah Beranek, A. Vorobyev, Ivan Polyakov, Matthew George Chapman, Antonio Pellegrino, Igor Bordyuzhin, Vincenzo Battista, Sophie Richards, Alessio Borgheresi, Lennaert Bel, G. Alkhazov, Emilie Maurice, V. Egorychev, Maxime Schubiger, V. Tisserand, Malte Hecker, Alexey A. Petrov, F. Maciuc, M. Ravonel Salzgeber, B. Hamilton, Martino Borsato, Alexey Badalov, Michael McCann, Sean Benson, Wojciech Krzemien, Christoph Langenbruch, E. Polycarpo, Tatsuya Nakada, G. Bencivenni, D. Campora Perez, Eleonora Luppi, B. T. Meadows, Andrea Bizzeti, M. Pepe Altarelli, Gianluigi Casse, V. Kudryavtsev, Angelo Loi, G. Raven, D. Decamp, A. Golutvin, Roger Barlow, M. T. Tran, Simon Baker, I. A. Monroy, U. Straumann, Tomasz Fiutowski, P. Collins, Slavomira Stefkova, C. Satriano, Daniel Berninghoff, Vincenzo Vagnoni, Giovanni Carboni, S. Farry, S. Kandybei, Marina Artuso, Edward James Millard, Marco Gersabeck, M. D. Sokoloff, T. Kirn, S. Ogilvy, D. R. Ward, Hannah Louise Pullen, Elena Graverini, Mikhail Hushchyn, Federico Redi, Antony Morris, Olivier Deschamps, S.I. Eidelman, Alessandra Pastore, J. He, Heather Mckenzie Wark, Alexander Baranov, E. Jans, C. Gaspar, T. J. Gershon, Christian Färber, Ignacio Bediaga, A. Rogozhnikov, Jing Wang, A. Mazurov, Alex Pearce, Xuhao Yuan, Aravindhan Venkateswaran, Luca Minzoni, Jiayin Sun, I. V. Gorelov, K. Müller, R. Tourinho Jadallah Aoude, D. Martins Tostes, M. S. Rangel, S. Easo, Miroslaw Firlej, Denis Derkach, I. Longstaff, P. R. Li, M. Calvo Gomez, A. Bitadze, R. Graciani Diaz, Marouen Baalouch, Wojciech Kucewicz, Neville Harnew, L. De Paula, Elie Aslanides, Maciej Pawel Szymanski, Markus Frank, Kevin Maguire, Olivier Leroy, Federica Lionetto, F. Ferreira Rodrigues, B. Storaci, Daniele Marangotto, A.E. Bondar, P. Campana, Karlis Dreimanis, Konrad Klimaszewski, F. Martinez Vidal, G. Corti, Flavio Pisani, Stefanie Reichert, Paolo Carniti, Meril Reboud, Tjeerd Ketel, Marcela Vitti, Yuezhe Yao, Holger Stevens, Hang Yin, Alessandro Pistone, Daniel Charles Craik, Tommaso Colombo, Alexander Berezhnoy, Basem Khanji, Y. Xie, Mark Hatch, Thomas Blake, C. M. Costa Sobral, Nis Meinert, Morgan Martin, Diego Alejandro Milanes, Michal Kreps, Andrea Merli, P. Naik, B. Jost, M. Andreotti, Cristina Lazzeroni, F. F. Wilson, R. Wallace, S. T. Harnew, M. J. Morello, A. Di Canto, P. Perret, Sergey Barsuk, C. Joram, H. Schindler, Marek Idzik, P. Ruiz Valls, J. Arnau Romeu, Thomas Hadavizadeh, T. Britton, H.-P. Dembinski, J. Wishahi, M. De Cian, M. van Beuzekom, Pietro Marino, M. Schmelling, Andrea Valassi, J. Garra Tico, Nikolay Bondar, Mohamad Kozeiha, C. Prouve, Zehua Xu, B. Souza De Paula, Ph. Ghez, Marco Santimaria, Brice Maurin, François Fleuret, B. Leverington, M. van Veghel, l. Soares Lavra, A. Gomes, Federico Betti, L. A. Granado Cardoso, Anna Lupato, Scott Ely, O. 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Subjects: Charm physic, Nuclear and High Energy Physics, Hadrons, 01 natural sciences, NO, Flavor physics, Hadron-Hadron scattering (experiments), Branching fraction, Charm physics, Flavor physics, Hadron-Hadron scattering (experiments), Spectroscopy, 0103 physical sciences, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, LHCb - Abteilung Hinton, 010306 general physics, Large Hadron Collider (France and Switzerland), Spectroscopy, Charm physics, Physics, 010308 nuclear & particles physics, Branching fraction, High Energy Physics::Phenomenology, Gran Col·lisionador d'Hadrons, Particle physics, Crystallography, Flavor physic, lcsh:QC770-798, High Energy Physics::Experiment, Física de partícules, Experiments, Energy (signal processing)
Abstract: The ratios of the branching fractions of the decays Λ c + → pπ − π +, Λ c + → pK − K +, and Λ c + → pπ − K + with respect to the Cabibbo-favoured Λ c + → pK − π + decay are measured using proton-proton collision data collected with the LHCb experiment at a 7 TeV centre-of-mass energy and corresponding to an integrated luminosity of 1.0 fb−1: $$ \begin{array}{l}\frac{\mathrm{\mathcal{B}}\left({\varLambda}_c^{+}\to p{\pi}^{-}{\pi}^{+}\right)}{\mathrm{\mathcal{B}}\left({\varLambda}_c^{+}\to p{K}^{-}{\pi}^{+}\right)}=\left(7.44\pm 0.08\pm 0.18\right)\%,\hfill \\ {}\frac{\mathrm{\mathcal{B}}\left({\varLambda}_c^{+}\to p{K}^{-}{K}^{+}\right)}{\mathrm{\mathcal{B}}\left({\varLambda}_c^{+}\to p{K}^{-}{\pi}^{+}\right)}=\left(1.70\pm 0.03\pm 0.03\right)\%\hfill \\ {}\frac{\mathrm{\mathcal{B}}\left({\varLambda}_c^{+}\to p{\pi}^{-}{K}^{+}\right)}{\mathrm{\mathcal{B}}\left({\varLambda}_c^{+}\to p{K}^{-}{\pi}^{+}\right)}=\left(0.165\pm 0.015\pm 0.005\right)\%,\hfill \end{array} $$ ℬ Λ c + → p π − π + ℬ Λ c + → p K − π + = 7.44 ± 0.08 ± 0.18 % , ℬ Λ c + → p K − K + ℬ Λ c + → p K − π + = 1.70 ± 0.03 ± 0.03 % ℬ Λ c + → p π − K + ℬ Λ c + → p K − π + = 0.165 ± 0.015 ± 0.005 % , where the uncertainties are statistical and systematic, respectively. These results are the most precise measurements of these quantities to date. When multiplied by the world-average value for $$ \mathrm{\mathcal{B}}\left({\varLambda}_c^{+}\to p{K}^{-}{\pi}^{+}\right) $$ ℬ Λ c + → p K − π + , the corresponding branching fractions are $$ \begin{array}{l}\mathrm{\mathcal{B}}\left({\varLambda}_c^{+}\to p{\pi}^{-}{\pi}^{+}\right)=\left(4.72\pm 0.05\pm 0.11\pm 0.25\right)\times {10}^{-3},\hfill \\ {}\mathrm{\mathcal{B}}\left({\varLambda}_c^{+}\to p{K}^{-}{K}^{+}\right)=\left(1.08\pm 0.02\pm 0.02\pm 0.06\right)\times {10}^{-3},\hfill \\ {}\mathrm{\mathcal{B}}\left({\varLambda}_c^{+}\to p{\pi}^{-}{K}^{+}\right)=\left(1.04\pm 0.09\pm 0.03\pm 0.05\right)\times {10}^{-4},\hfill \end{array} $$ ℬ Λ c + → p π − π + = 4.72 ± 0.05 ± 0.11 ± 0.25 × 10 − 3 , ℬ Λ c + → p K − K + = 1.08 ± 0.02 ± 0.02 ± 0.06 × 10 − 3 , ℬ Λ c + → p π − K + = 1.04 ± 0.09 ± 0.03 ± 0.05 × 10 − 4 , where the final uncertainty is due to $$ \mathrm{\mathcal{B}}\left({\varLambda}_c^{+}\to p{K}^{-}{\pi}^{+}\right) $$ ℬ Λ c + → p K − π + .
Published: 2018
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43. Evidence for the decay B0S→K¯∗0μ+μ−

Author: LHCb Collaboration, Adeva Andany, Bernardo, Boente García, Óscar, Chobanova, Veronika, Cid Vidal, Xabier, Dosil Suárez, Álvaro, Fernández Prieto, Antonio, Gallas Torreira, Abraham Antonio, García Plana, Beatriz, Lucio Martínez, Miriam, Martínez Santos, Diego, Plo Casasus, Máximo, Prisciandaro, James J., Ramos Pernas, Miguel, Romero Vidal, Antonio, Saborido Silva, Juan José, Sanmartín Sedes, Brais, Santamarina Ríos, Cibrán, Vázquez Regueiro, Pablo, Vieites Díaz, María, Universidade de Santiago de Compostela. Departamento de Física de Partículas, and Universidade de Santiago de Compostela. Instituto Galego de Física de Altas Enerxías (IGFAE)
Subjects: FCNC Interaction, Flavor physics, Rare decay, Hadron-Hadron scattering (experiments), B physics
Abstract: A search for the decay B0S→K¯∗0μ+μ− is presented using data sets corresponding to 1.0, 2.0 and 1.6 fb−1 of integrated luminosity collected during pp collisions with the LHCb experiment at centre-of-mass energies of 7, 8 and 13 TeV, respectively. An excess is found over the background-only hypothesis with a significance of 3.4 standard deviations. The branching fraction of the B0S→K¯∗0μ+μ− decay is determined to be B(B0s→K¯∗0μ+μ−)=[2.9±1.0(stat)±0.2(syst)±0.3(norm)]×10−8, where the first and second uncertainties are statistical and systematic, respectively. The third uncertainty is due to limited knowledge of external parameters used to normalise the branching fraction measurement. SI
Published: 2018

44. Measurement of the charm-mixing parameter $y_{CP}$

Author: Adam Szabelski, Alessia Satta, G. Cavallero, A. Popov, S. C. Haines, Davide Lancierini, M. Kreps, Christoph Langenbruch, G. Bencivenni, Mick Mulder, V. Volkov, J. A. Rodriguez Lopez, Stephen Ogilvy, Federico Stagni, Michele Atzeni, A. Palano, Tomasz Szumlak, Yuezhe Yao, Huacheng Cai, F. Blanc, Niels Tuning, M. Kozeiha, Hannah Louise Pullen, J. M. Otalora Goicochea, Yang Li, Jose Lopes, T. J. V. Bowcock, Z. C. Huard, G. Liu, Moran Wang, S. Zucchelli, Margarita Stepanova, Marco Adinolfi, A. Crocombe, Daniel Johnson, E. Graverini, William Barter, Martina Pili, Miroslaw Firlej, Lauren Emma Yeomans, B. G. Siddi, Marco Cattaneo, Bartlomiej Rachwal, Jaap Velthuis, Stephan Escher, Paolo Carniti, Meril Reboud, R. Nandakumar, A. Fernandez Prieto, Emmy Gabriel, Jascha Peter Grabowski, V. Shevchenko, W. Parker, Alexander Berezhnoy, Mike Williams, Julien Cogan, Gediminas Sarpis, Alexey Zhelezov, M. Dorigo, Violaine Bellee, D. S. Mitzel, Dmitry Golubkov, Jonas Rademacker, F. Bossu, F. Lionetto, G. Veneziano, Y. Wang, G. Gazzoni, David Hutchcroft, Luca Federici, O. Steinkamp, Deepanwita Dutta, Stefano Petrucci, Patrick Koppenburg, Stephen M. Stahl, l. Soares Lavra, Marco Clemencic, N. V. Veronika, George Coombs, S. Filippov, Kenenbek Arzymatov, M. Santimaria, A. Gallas Torreira, Guido Andreassi, K. Carvalho Akiba, Agnieszka Oblakowska-Mucha, Wouter Hulsbergen, Titus Mombächer, G. C. Barrand, K. Müller, T. Williams, O. De Aguiar Francisco, J. E. Andrews, R. McNulty, Adalberto Sciubba, A. K. Kuonen, Renata Kopecna, A. B. Rodrigues, L. Dufour, Florian Reiss, W. Wislicki, X. Cid Vidal, D. Hill, Krzysztof Swientek, C. Sanchez Mayordomo, P. Fernandez Declara, Brian Meadows, Jean Wicht, H. Schindler, E. Ben-Haim, Tara Shears, Barbara Sciascia, Boris Quintana, N. Jurik, C. A. Aidala, M. R. J. Williams, E. Tournefier, Jakub Moron, E. van Herwijnen, Anton Poluektov, George Holger Lovell, C. Gaspar, Oleg Maev, M. van Veghel, Lev Shekhtman, Cameron Thomas Dean, Alessandro Bertolin, A. Oyanguren, Sofia Kotriakhova, S. A. Wotton, S. Farry, Sneha Malde, O. Stenyakin, Michal Dziewiecki, Gianluigi Casse, Angelo Loi, V. Bocci, J. Marks, Irina Nasteva, U. Uwer, A. Piucci, Manuel Schiller, C. Joram, Konstantinos Petridis, Ignacio Bediaga, E. Cogneras, E. Govorkova, Harald Viemann, A. Romero Vidal, Alexander Leflat, Alexandru Ene, N. Skidmore, Giampiero Mancinelli, Patrick Mackowiak, Jihyun Bhom, Murdo Traill, V. Egorychev, M. Calvo Gomez, Yasmine Amhis, Gabriela Johanna Pomery, S.-G. Chitic, Tatsiana Klimkovich, Georgios Chatzikonstantinidis, Samuel Maddrell-Mander, Maulik R. Patel, Mikhail Zavertyaev, Lauren Douglas, Minh Tâm Tran, Federico Alessio, Srishti Bhasin, Wojciech Krupa, M. S. Rangel, O. Lupton, Alexander Semennikov, Florian Lemaitre, M. Heß, J. M. De Miranda, A. Brossa Gonzalo, P. Gironella Gironell, Roger Barlow, K. De Bruyn, Simon Baker, Vladimir Gligorov, Matteo Bartolini, S. Benson, E. Spadaro Norella, M. Kenzie, Roger Forty, Christoph Frei, Rainer Schwemmer, O. Schneider, Natalia Polukhina, A. Lupato, Gaia Lanfranchi, Alessandro Cardini, Blaise Delaney, S. Karodia, Samuel Belin, Arseniy Vitkovskiy, Evgeny Gushchin, M. Andreotti, Sergey Barsuk, Andrea Contu, Sarah Beranek, Marcin Chrzaszcz, J. Serrano, Qiang Xu, F. Da Cunha Marinho, Domenico Galli, Davide Pinci, S. Monteil, Z. Mathe, Constantin Weisser, Lorenzo Capriotti, Kristian Alexander Zarebski, J. Beddow, Michael Alexander, Thomas Henry Hancock, Mark Slater, Varvara Batozskaya, J. Dalseno, Sergii Kandybei, Harry Cliff, Igancio Alberto Monroy, Marcello Rotondo, G. Penso, B. Souza De Paula, A. Pearce, R. Quagliani, D. Melnychuk, Alexander Battig, Zhipeng Tang, A. Malinin, Andrey Tayduganov, François Fleuret, A. Di Canto, Wenhua Hu, Malgorzata Pikies, L. Sestini, Darya Savrina, S. Blusk, Yu Zhang, Tjeerd Ketel, Alessio Sarti, M. McCann, Matthias Karacson, M. Xu, Tomasz Fiutowski, Antonio Falabella, P. Collins, Richard Jacobsson, T. Humair, Gianfranco Morello, Preema Rennee Pais, R. Niet, Conor Fitzpatrick, Antonino Sergi, M. Corvo, Ph. Charpentier, P. Campana, Andrey Golutvin, D. Gascon, Gabriele Simi, Roman Greim, T. Boettcher, Karol Hennessy, Giulio Dujany, R. Oldeman, B. Schmidt, A. Lai, M. J. Morello, Mark Smith, Markus Frank, X. Yuan, R. Vazquez Gomez, Claudio Gotti, L. Pescatore, Dominik Müller, Kuzma Ivshin, Philipp Ibis, R. Santacesaria, V. Vagnoni, Sergey Didenko, Simone Bifani, J. L. Fu, Y. H. Zheng, C. J. G. Onderwater, Alessandro Camboni, W. Qian, Fedor Baryshnikov, E. Khairullin, Igor Kostiuk, Karlis Dreimanis, Maxime Vernet, Elie Aslanides, Albert Bursche, T. Ovsiannikova, Alex Seuthe, Sebastien Valat, C. Göbel, A. Jawahery, I. Longstaff, Nigel Watson, M. Kolpin, J. A. B. Coelho, Nikita Beliy, E. S. Sepulveda, Emilie Bertholet, Xiao-Rui Lyu, B. Leverington, R. Lefèvre, Robert Currie, L. M. Garcia Martin, R. A. Fini, M. Stahl, C. Abellán Beteta, P. R. Li, M. Gandelman, Yu. Guz, F. Polci, S. Gallorini, A. Mauri, Wolfgang Funk, Matthew George Chapman, Emilie Maurice, Pavol Stefko, Martino Borsato, S. Tolk, Jiangqiao Hu, C. Hadjivasiliou, Xixin Liang, K. E. Kim, Vitalii Lisovskyi, Daniel Lacarrere, Timothy Evans, Razvan Daniel Moise, P. Owen, Paolo Gandini, Kevin Heinicke, C. Potterat, Achille Stocchi, V. Chekalina, C. Santamarina Rios, A. Dzyuba, B. Pietrzyk, Xuesong Liu, Konstantin Gizdov, Wiktor Byczynski, M. Martinelli, W. Krzemien, D. Loh, D. Zhang, Wander Baldini, Victor Renaudin, M. Tobin, P. Alvarez Cartelle, L. Carson, F. Ferreira Rodrigues, Mariusz Witek, Tatsuya Nakada, Davide Brundu, Colm Harold Murphy, Arnaud Robert, J. Garra Tico, D. Vieira, Anatoliy Dovbnya, Xing-Jiang Zhu, Fabio Ferrari, Marcin Kucharczyk, Ryan Calladine, Plamen Hristov Hopchev, Floris Keizer, J. F. Marchand, Victor Coco, Zhuoming Li, E. Dall’Occo, D. Decamp, S. T. Harnew, Frederic Machefert, Sheldon Stone, Marcel Merk, S. Reichert, D. Tonelli, Chenxi Gu, Thomas Latham, C. Patrignani, J. M. Yu, L. Grillo, W. Huang, L. J. Bel, Andrea Valassi, Markus Roehrken, V. Tisserand, Tara Nanut, Tommaso Colombo, T. Tekampe, Timothy Gershon, Jacques Lefrançois, Xavier Vilasis-Cardona, Francesco Dettori, O. G. Girard, L. Silva de Oliveira, Sandra Amato, P. Billoir, I. T. Smith, A. Mathad, David Websdale, K. Belous, Thomas Blake, Vladislav Balagura, P. Spradlin, R. Hidalgo Charman, Neville Harnew, Maciej Pawel Szymanski, S. Esen, C. Satriano, J. V. Viana Barbosa, L. Giubega, Zishuo Yang, Aravindhan Venkateswaran, Zhihao Xu, Gregory Ciezarek, Marek Idzik, T. Ruf, E. G. Thomas, Stanislav Poslavskii, Pascal Perret, U. Marconi, G. Martellotti, T. D. Nguyen, Jolanta Brodzicka, Maciej Witold Majewski, Matthew Scott Rudolph, F. Martinez Vidal, U. Eitschberger, Jia-Jia Qin, Matteo Rama, M. Brodski, A. Massafferri, M. O. Bettler, S. Amerio, Marie Helene Schune, V. Kudryavtsev, Thomas Hadavizadeh, James Vincent Mead, D. R. Ward, L. Cojocariu, C. Bozzi, David Chamont, Veronika Chobanova, A. Carbone, Ifan Williams, Donal Murray, Dawid Gerstel, Eluned Smith, Serhii Koliiev, D. H. Campora Perez, M. van Beuzekom, Maria Elena Stramaglia, J. Ruiz Vidal, A. McNab, Alexandra Paige Rollings, A. Trisovic, J. He, Alison Tully, Nikita Kazeev, Dana Bobulska, E. Buchanan, A. Pellegrino, M. Demmer, Paolo Ciambrone, M. Pappagallo, Erica Polycarpo, Nicola Neri, Naylya Sagidova, R. Mountain, Jing Wang, S. Perazzini, Giovanni Valenti, Da Yu Tou, Alexander Vagner, R. Calabrese, A. Mazurov, Paul Seyfert, Kurt Rinnert, T. Lesiak, Malte Hecker, M. Ravonel Salzgeber, H. F. Schreiner, Guido Haefeli, Marcel Materok, Liupan An, Miroslav Saur, Pietro Albicocco, Daniele Marangotto, N. Belloli, A. Alfonso Albero, G. Wormser, Anna Danilina, Cedric Meaux, M. Vieites Diaz, Simon Stemmle, S. Gambetta, L. Ferreira Lopes, Agnieszka Dziurda, Marina Artuso, L. Del Buono, Balazs Voneki, Nicola Serra, D. Martinez Santos, Alessandro Pastore, Zhenzi Wang, D. A. Milanes, Andrea Bizzeti, Dmitrii Pereima, Sai-Juan Chen, Fedor Ratnikov, Marta Calvi, B. Hamilton, Stephanie Hansmann-Menzemer, L. De Paula, E. Gersabeck, S. Playfer, A. B. Morris, P. Di Nezza, I. Polyakov, U. Straumann, A. Schopper, R. Silva Coutinho, K. Klimaszewski, V. Salustino Guimaraes, Kenneth Wyllie, L. Henry, M. Ramos Pernas, Andrew Beiter, Olivier Deschamps, Niklas Stefan Nolte, Franz Muheim, Nis Meinert, C. Prouve, A. Comerma-Montells, Morgan Martin, Alexander Baranov, Sergey Strokov, Robert Ekelhof, Thierry Gys, Stefania Vecchi, James Mwangi Kariuki, S. Stefkova, B. Maurin, Philip Ilten, Massimiliano Fiorini, Jonathan Plews, Roberta Cardinale, Matthew Needham, G. Punzi, C. Färber, S. Klaver, A. Weiden, Alessandro Petrolini, A. A. Alves, J. Arnau Romeu, Frederic Teubert, M. Plo Casasus, Guy Wilkinson, V. Vorobyev, A. Puig Navarro, L. Tomassetti, Gennady Panshin, B. Couturier, Ivan Belyaev, M. Poli Lener, Ph. Ghez, Roland Waldi, Fabrice Desse, O. Yushchenko, B. Spaan, J. J. Saborido Silva, Igor Skiba, Mauricio Féo, Mikkel Bjørn, Flavio Fontanelli, A. Birnkraut, M. Veltri, George Lafferty, Timofei Maltsev, Roel Aaij, B. Sanmartin Sedes, C. Vázquez Sierra, Zan Ren, T. Skwarnicki, Mauro Morandin, A. Artamonov, John Gordon Smeaton, Feng Jiang, Matthieu Marinangeli, R. Lindner, M. Winn, J. García Pardiñas, John Matthew Durham, Lluis Garrido, Jacopo Pinzino, Wen Chao Zhang, R. Dzhelyadin, Yuyue Gan, Eddy Jans, Dong Xiao, Alberto Lusiani, Andrei Tsaregorodtsev, C. Sanchez Gras, L. Gavardi, Christophe Haen, Valery Pugatch, Heather Mckenzie Wark, Andrea Merli, Anna Ossowska, Vladimir Romanovskiy, S. Ely, Oliver Grünberg, Dmitrii Maisuzenko, A. Vollhardt, M. Boubdir, Hans Dijkstra, S. Richards, M. Kecke, Maxim Borisyak, Biplab Dey, M. Shapkin, Flavio Pisani, Fergus Wilson, Alexsei Chubykin, M. Lucio Martinez, Marianna Fontana, A. Gomes, Federico Betti, D. Gerick, Simon Nieswand, Annarita Buonaura, Valery Zhukov, S. Simone, Mihai Straticiuc, Christopher Betancourt, M. H. Kelsey, Ulrik Egede, Olga Morgunova, M. Vesterinen, Svende Braun, Olivier Leroy, Christopher Jones, F. J. P. Soler, Joel Closier, M. Chefdeville, C. Matteuzzi, M. De Serio, C. L. Da Silva, Bartosz Malecki, Roland Bernet, John Back, Christoph Hasse, Christopher Burr, D. Vom Bruch, Eduardo Rodrigues, E. Grauges, J. J. Walsh, S. Stracka, R. Le Gac, A. Hicheur, Tommaso Pajero, R. Cenci, Martha Hilton, F. Archilli, Alexey Vorobyev, Gloria Corti, Eleonora Luppi, Thomas Harrison, Edward James Millard, Marco Gersabeck, I. V. Gorelov, R. Tourinho Jadallah Aoude, E. Michielin, Lucio Anderlini, F. Redi, S. Schael, C. Remon Alepuz, L. Sun, Andrey Ustyuzhanin, Sajan Easo, Bernardo Adeva, Matthew Charles, P. De Simone, Carmelo D'Ambrosio, Leonid Kravchuk, Biagio Saitta, Emanuele Santovetti, A. Nandi, T. Likhomanenko, Patrick Robbe, Artur Ukleja, Phillip John Marshall, S. Coquereau, Benjamin Audurier, Denis Derkach, Giulia Tuci, P. Marino, Marcela Vitti, J. van Tilburg, X. Han, L. Zhang, M. Pepe Altarelli, V. Gibson, Davide Fazzini, M.-N. Minard, Mark Hatch, C. M. Costa Sobral, M. Schubiger, Johannes Heuel, Nikolay Bondar, Niko Neufeld, G. Manca, A. Dosil Suárez, Florin Maciuc, B. R. Gruberg Cazon, Antje Mödden, W. Kucewicz, P. Vazquez Regueiro, G. A. Cowan, J. Maratas, M. Ferro-Luzzi, S. Ricciardi, Ao Xu, Mara Senghi Soares, A. Davis, Y. N. Gao, Vincenzo Battista, Alexey A. Petrov, Adam Dendek, B. Garcia Plana, Yuehong Xie, Mark Whitehead, Semen Eidelman, R. Matev, Tengiz Kvaratskheliya, Antonios Papanestis, C. Marin Benito, G. Tellarini, C. Khurewathanakul, D. P. O’Hanlon, Guillaume Pietrzyk, Baasansuren Batsukh, Andrii Usachov, Michael Schmelling, B. Khanji, Felix Johannes Kress, Lukas Gruber, M. Wilkinson, V. Franco Lima, S. Neubert, J. A. de Vries, J. Jalocha, Simon Akar, Matthew James Tilley, Jessica Prisciandaro, Stefan Roiser, D. C. Craik, A. Bay, Johannes Albrecht, P. Durante, Malcolm John, A. C. dos Reis, F. Bedeschi, G. Raven, Alexander Bondar, M. D. Sokoloff, N. Farley, Ryan Newcombe, Alla Nogay, Evgenii Shmanin, J. Müller, Max Neuner, Silvia Borghi, Pavel Krokovny, Yury Shcheglov, Alexandru Grecu, Sebastian Bachmann, Dmitry Popov, G. Passaleva, V. Obraztsov, M. Petruzzo, Stephan Eisenhardt, C. Chen, Michele Veronesi, T. Kirn, Daniel Berninghoff, Giovanni Carboni, C. Nguyen-Mau, Stephane T'Jampens, Giacomo Graziani, D. Lucchesi, Vlad-Mihai Placinta, A. Heister, Lars Eklund, Luca Minzoni, D. Hynds, Vanessa Müller, Jennifer Brigitta Zonneveld, Ziad Ajaltouni, Michele Piero Blago, Andreas Güth, T. Schmelzer, Margarete Schellenberg, M. Cruz Torres, J. Buytaert, Barbara Storaci, L. Cassina, Beat Jost, Holger Stevens, Hang Yin, O. Boente Garcia, S. Cadeddu, Francesca Dordei, Matteo Palutan, P. Griffith, Andrea Mogini, M. De Cian, K. Maguire, Ia. Bezshyiko, Nikolay Nikitin, Philippe d'Argent, P. E. L. Clarke, Sebastien Ponce, Paras Naik, S. De Capua, E. Price, L. L. Pappalardo, G. Alkhazov, Mikhail Hushchyn, Jiayin Sun, C. Parkes, Cristina Lazzeroni, H.-P. Dembinski, R. Graciani Diaz, Vladimir Macko, L. A. Granado Cardoso, 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 l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), 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), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), 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)-Université de Paris (UP), 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), LHCb, Ministerio de Ciencia, Innovación y Universidades (España), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Clermont Auvergne (UCA)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Aaij, R., Abellán Beteta, C., Adeva, B., Adinolfi, M., Aidala, C.A., Ajaltouni, Z., Akar, S., Albicocco, P., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Alkhazov, G., Alvarez Cartelle, P., Alves Jr, A.A., Amato, S., Amerio, S., Amhis, Y., An, L., Anderlini, L., Andreassi, G., Andreotti, M., Andrews, J.E., Archilli, F., d'Argent, P., Arnau Romeu, J., Artamonov, A., Artuso, M., Arzymatov, K., Aslanides, E., Atzeni, M., Audurier, B., Bachmann, S., Back, J.J., Baker, S., Balagura, V., Baldini, W., Baranov, A., Barlow, R.J., Barrand, G.C., Barsuk, S., Barter, W., Bartolini, M., Baryshnikov, F., Batozskaya, V., Batsukh, B., Battig, A., Battista, V., Bay, A., Beddow, J., Bedeschi, F., Bediaga, I., Beiter, A., Bel, L.J., Belin, S., Beliy, N., Bellee, V., Belloli, N., Belous, K., Belyaev, I., Ben-Haim, E., Bencivenni, G., Benson, S., Beranek, S., Berezhnoy, A., Bernet, R., Berninghoff, D., Bertholet, E., Bertolin, A., Betancourt, C., Betti, F., Bettler, M.O., van Beuzekom, M., Bezshyiko, Ia., Bhasin, S., Bhom, J., Bifani, S., Billoir, P., Birnkraut, A., Bizzeti, A., Bjørn, M., Blago, M.P., Blake, T., Blanc, F., Blusk, S., Bobulska, D., Bocci, V., Boente Garcia, O., Boettcher, T., Bondar, A., Bondar, N., Borghi, S., Borisyak, M., Borsato, M., Bossu, F., Boubdir, M., Bowcock, T.J.V., Bozzi, C., Braun, S., Brodski, M., Brodzicka, J., Brossa Gonzalo, A., Brundu, D., Buchanan, E., Buonaura, A., Burr, C., Bursche, A., Buytaert, J., Byczynski, W., Cadeddu, S., Cai, H., Calabrese, R., Calladine, R., Calvi, M., Calvo Gomez, M., Camboni, A., Campana, P., Campora Perez, D.H., Capriotti, L., Carbone, A., Carboni, G., Cardinale, R., Cardini, A., Carniti, P., Carson, L., Carvalho Akiba, K., Casse, G., Cassina, L., Cattaneo, M., Cavallero, G., Cenci, R., Chamont, D., Chapman, M.G., Charles, M., Charpentier, Ph., Chatzikonstantinidis, G., Chefdeville, M., Chekalina, V., Chen, C., Chen, S., Chitic, S.-G., Chobanova, V., Chrzaszcz, M., Chubykin, A., Ciambrone, P., Cid Vidal, X., Ciezarek, G., Clarke, P.E.L., Clemencic, M., Cliff, H.V., Closier, J., Coco, V., Coelho, J.A.B., Cogan, J., Cogneras, E., Cojocariu, L., Collins, P., Colombo, T., Comerma-Montells, A., Contu, A., Coombs, G., Coquereau, S., Corti, G., Corvo, M., Costa Sobral, C.M., Couturier, B., Cowan, G.A., Craik, D.C., Crocombe, A., Cruz Torres, M., Currie, R., D'Ambrosio, C., Da Cunha Marinho, F., Da Silva, C.L., Dall'Occo, E., Dalseno, J., Danilina, A., Davis, A., De Aguiar Francisco, O., De Bruyn, K., De Capua, S., De Cian, M., De Miranda, J.M., De Paula, L., De Serio, M., De Simone, P., Dean, C.T., Decamp, D., Del Buono, L., Delaney, B., Dembinski, H.-P., Demmer, M., Dendek, A., Derkach, D., Deschamps, O., Desse, F., Dettori, F., Dey, B., Di Canto, A., Di Nezza, P., Didenko, S., Dijkstra, H., Dordei, F., Dorigo, M., Dosil Suárez, A., Douglas, L., Dovbnya, A., Dreimanis, K., Dufour, L., Dujany, G., Durante, P., Durham, J.M., Dutta, D., Dzhelyadin, R., Dziewiecki, M., Dziurda, A., Dzyuba, A., Easo, S., Egede, U., Egorychev, V., Eidelman, S., Eisenhardt, S., Eitschberger, U., Ekelhof, R., Eklund, L., Ely, S., Ene, A., Escher, S., Esen, S., Evans, T., Falabella, A., Farley, N., Farry, S., Fazzini, D., Federici, L., Fernandez Declara, P., Fernandez Prieto, A., Ferrari, F., Ferreira Lopes, L., Ferreira Rodrigues, F., Ferro-Luzzi, M., Filippov, S., Fini, R.A., Fiorini, M., Firlej, M., Fitzpatrick, C., Fiutowski, T., Fleuret, F., Fontana, M., Fontanelli, F., Forty, R., Franco Lima, V., 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Spadaro, Stramaglia, M. E., Tilley, M. J., Tou, D. Y., Tran, M. T., Gomez, R. Vazquez, Velthuis, J. J., Veronika, N. V., Barbosa, J. V. Viana, de Vries, J. A., Sierra, C. Vazquez, Ward, D. R., Wark, H. M., Watson, N. K., Williams, M. R. J., Wilson, F. F., Wotton, S. A., Yeomans, L. E., Zarebski, K. A., Zhang, W. C., Zonneveld, J. B., and Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)
Subjects: +K%2B+K%22">D0 --> K+ K, +D0+muon-+antineutrino%2Fmu+anything%22">anti-B0 --> D0 muon- antineutrino/mu anything, General Physics and Astronomy, 7000 GeV-cms8000 GeV-cms, D0: hadronic decay, 01 natural sciences, High Energy Physics - Experiment, Luminosity, High Energy Physics - Experiment (hep-ex), Flavor changing neutral current, Electroweak interaction, scattering [p p], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Physic, +pi%2B+pi%22">D0 --> pi+ pi, Charm (quantum number), Nuclear Experiment, Mixing (physics), Settore FIS/01, Physics, 02 Physical Sciences, +D0+muon-+antineutrino%2Fmu+anything%22">B- --> D0 muon- antineutrino/mu anything, CP violation, CERN LHC Coll, Hadron collider, Physical Sciences, LHC, colliding beams [p p], anti-B0: semileptonic decay, Particle Physics - Experiment, Particles and field, Particle mixing and oscillation, S032DT, General Physics, Particle physics, p p: scattering, Charmed meson, Meson, B-: semileptonic decay, Physics, Multidisciplinary, FOS: Physical sciences, NO, mixing [D0 anti-D0], Physics and Astronomy (all), PE2_2, PE2_1, 0103 physical sciences, ddc:530, SDG 7 - Affordable and Clean Energy, 010306 general physics, hadronic decay [D0], Science & Technology, hep-ex, Precision measurement, Charm physics, Flavor physics, Hadron-Hadron Scattering, Nuclear and High Energy Physics, +K-+pi%2B%22">D0 --> K- pi+, D0 anti-D0: mixing, LHC-B, HEP, Symmetrie, LHCb, CP-VIOLATION, semileptonic decay [anti-B0], Elementary Particles and Fields, semileptonic decay [B-], High Energy Physics::Experiment, p p: colliding beams, experimental results
Abstract: A measurement of the charm-mixing parameter $y_{CP}$ using $D^0 \to K^+ K^-$, $D^0 \to \pi^+ \pi^-$, and $D^0 \to K^- \pi^+$ decays is reported. The $D^0$ mesons are required to originate from semimuonic decays of $B^-$ and $\overline{B}^0$ mesons. These decays are partially reconstructed in a data set of proton-proton collisions at center-of-mass energies of 7 and 8 TeV collected with the LHCb experiment and corresponding to an integrated luminosity of 3 fb$^{-1}$. The $y_{CP}$ parameter is measured to be $(0.57 \pm 0.13(\rm{stat.}) \pm 0.09(\rm{syst.}))\%$, in agreement with, and as precise as, the current world-average value., Comment: All figures and tables, along with any supplementary material and additional information, are available at https://lhcbproject.web.cern.ch/lhcbproject/Publications/LHCbProjectPublic/LHCb-PAPER-2018-038.html
Published: 2018
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45. Quantum-correlated measurements of D → K S 0 π+π−π0 decays and consequences for the determination of the CKM angle γ

Author: J. Libby, G. Wilkinson, P. K. Resmi, and S. Malde
Subjects: Physics, Nuclear and High Energy Physics, e+-e- Experiments, 010308 nuclear & particles physics, Resonance, CKM angle gamma, 01 natural sciences, Luminosity, Flavor physics, Phase space, 0103 physical sciences, lcsh:QC770-798, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, Atomic physics, 010306 general physics, Quantum, Charm physics
Abstract: We perform quantum-correlated measurements of the decay D → K S 0 π+π−π0 using a data sample corresponding to an integrated luminosity of 0.82 fb−1 collected at the ψ(3770) resonance by the CLEO-c detector. The value of the CP -even fraction F+ is determined to be 0.238 ± 0.012 ± 0.012. The strong-phase differences are also measured in different regions of K S 0 π+π−π0 phase space by binning around the intermediate resonances present. The potential sensitivity of the results for determining the CKM angle γ from B± → D(K S 0 π+π−π0)K± decays is also discussed.
Published: 2018
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46. A diagrammatic analysis of two-body charmed baryon decays with flavor symmetry

Author: Y.K. Hsiao, Yan-Li Wang, Yao Yu, and H.J. Zhao
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, e+-e- Experiments, 010308 nuclear & particles physics, Branching fraction, FOS: Physical sciences, Lambda, 01 natural sciences, Upper and lower bounds, Baryon, Flavor physics, High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), Rare decay, 0103 physical sciences, lcsh:QC770-798, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, Symmetry (geometry), 010306 general physics, Charm physics
Abstract: We study the two-body anti-triplet charmed baryon decays based on the diagrammatic approach with $SU(3)$ flavor symmetry. We extract the two $W$-exchange effects as $E_{\bf B}$ and $E^\prime$ that contribute to the $\Lambda_c^+ \to \Xi^0 K^+$ decay, together with the relative phases, where $E_{\bf B}$ gives the main contribution. Besides, we find that ${\cal B}(\Lambda_c^+\to p\pi^0)=(0.8 ^{+0.9}_{-0.8})\times 10^{-4}$, which is within the experimental upper bound. Particularly, we obtain ${\cal B}(\Xi_c^+\to\Xi^{0} \pi^{+})=(9.3 \pm 3.6)\times 10^{-3}$, ${\cal B}(\Xi_c^0\to \Xi^-\pi^+,\Lambda^0\bar K^0)=(19.3 \pm 2.8,8.3 \pm 5.0)\times 10^{-2}$ and ${\cal B}(\Xi_c^0\to \Xi^- K^+)=(5.6 \pm 0.8)\times 10^{-4}$, which all agree with the data. For the singly Cabibbo suppressed $\Lambda_c^+$ decays, we predict that ${\cal B}(\Lambda_c^+ \to n \pi^{+},p \eta^\prime,\Sigma^{+} K^{0}) =(7.7\pm 2.0,7.1 \pm 1.4,19.1 \pm 4.8)\times 10^{-4}$, which are accessible to the experiments at BESIII, BELLEII and LHCb., Comment: 12 pages, 2 figures, and 3 tables, version to be published in JHEP
Published: 2018
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47. Measurement of CP asymmetries in two-body B(s)0-meson decays to charged pions and kaons

Author: Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albicocco, P., Albrecht, J., Alessio, F., Alexander, M., Albero, A. Alfonso, Ali, S., Alkhazov, G., Cartelle, P. Alvarez, Alves, A. A., J, R., Amato, S., Amerio, S., Amhis, Y., An, L., Anderlini, L., Andreassi, G., Andreotti, M., Andrews, J. E., Appleby, R. B., Archilli, F., D'Argent, P., Romeu, J. Arnau, Artamonov, A., Artuso, M., Aslanides, E., Atzeni, M., Auriemma, G., Bachmann, S., Back, J. J., Baker, S., Balagura, V., Baldini, W., Baranov, A., Barlow, R. J., Barsuk, S., Barter, W., Baryshnikov, F., Batozskaya, V., Battista, V., Bay, A., Beddow, J., Bedeschi, F., Bediaga, I., Beiter, A., Bel, L. J., Beliy, N., Bellee, V., Belloli, N., Belous, K., Belyaev, I., Ben-Haim, E., Bencivenni, G., Benson, S., Beranek, S., Berezhnoy, A., Bernet, R., Berninghoff, D., Bertholet, E., Bertolin, A., Betancourt, C., Betti, F., Bettler, M. O., van Beuzekom, M., Bezshyiko, Ia., Bifani, S., Billoir, P., Birnkraut, A., Bizzeti, A., Bjorn, M., Blake, T., Blanc, F., Blusk, S., Bocci, V., Garcia, O. Boente, Boettcher, T., Bondar, A., Bondar, N., Borghi, S., Borisyak, M., Borsato, M., Bossu, F., Boubdir, M., Bowcock, T. J. V., Bowen, E., Bozzi, C., Braun, S., Brodski, M., Brodzicka, J., Brundu, D., Buchanan, E., Burr, C., Bursche, A., Buytaert, J., Byczynski, W., Cadeddu, S., Cai, H., Calabrese, R., Calladine, R., Calvi, M., Gomez, M. Calvo, Camboni, A., Campana, P., Perez, D. H. Campora, Capriotti, L., Carbone, A., Carboni, G., Cardinale, R., Cardini, A., Carniti, P., Carson, L., Akiba, K. Carvalho, Casse, G., Cassina, L., Cattaneo, M., Cavallero, G., Cenci, R., Chamont, D., Chapman, M. G., Charles, M., Charpentier, Ph., Chatzikonstantinidis, G., Chefdeville, M., Chen, S., Chitic, S-G., Chobanova, V., Chrzaszcz, M., Chubykin, A., Ciambrone, P., Vidal, X. Cid, Ciezarek, G., Clarke, P. E. L., Clemencic, M., Cliff, H. 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Subjects: Nuclear and High Energy Physics, VIOLATION, Physics and Astronomy (miscellaneous), B physic, Astronomy & Astrophysics, NO, Settore FIS/04 - Fisica Nucleare e Subnucleare, Physics, Particles & Fields, PHYSICS, Flavor physics, Hadron-Hadron scattering (experiments), TOOL, B-0, SDG 7 - Affordable and Clean Energy, Charm physics, Hadron-Hadron Scattering, Flavour Changing Neutral Current, Science & Technology, hep-ex, CP violation, GAMMA, MESONS, Oscillation, Flavor physic, Physical Sciences
Abstract: The time-dependent CP asymmetries in B0→π+π− and Bs0→K+K− decays are measured using a data sample of p p collisions corresponding to an integrated luminosity of 3.0 fb−1, collected with the LHCb detector at center-of-mass energies of 7 and 8 TeV. The same data sample is used to measure the time-integrated CP asymmetries in B0→K+π− and Bs0→π+K− decays. The results are Cπ+π−=−0.34±0.06±0.01, Sπ+π−=−0.63±0.05±0.01, CK+K−=0.20±0.06±0.02, SK+K−=0.18±0.06±0.02, AK+K−ΔΓ=−0.79±0.07±0.10, ACPB0=−0.084±0.004±0.003, and ACPBs0=0.213±0.015±0.007, where the first uncertainties are statistical and the second systematic. Evidence for CP violation is found in the Bs0→K+K− decay for the first time.
Published: 2018
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48. Measurement of the CP asymmetry in B− → D s − D0 and B− → D−D0 decays

Author: Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albicocco, P., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Ali, S., Alkhazov, G., Cartelle, P. Alvarez, Alves, A. A., J, R., Amato, S., Amerio, S., Amhis, Y., An, L., Anderlini, L., Andreassi, G., Andreotti, M., Andrews, J. E., Appleby, R. B., Archilli, F., D'Argent, P., Romeu, J. Arnau, Artamonov, A., Artuso, M., Aslanides, E., Atzeni, M., Auriemma, G., Bachmann, S., Back, J. J., Baker, S., Balagura, V., Baldini, W., Baranov, A., Barlow, R. J., Barsuk, S., Barter, W., Baryshnikov, F., Batozskaya, V., Battista, V., Bay, A., Beddow, J., Bedeschi, F., Bediaga, I., Beiter, A., Bel, L. J., Beliy, N., Bellee, V., Belloli, N., Belous, K., Belyaev, I., Ben-Haim, E., Bencivenni, G., Benson, S., Beranek, S., Berezhnoy, A., Bernet, R., Berninghoff, D., Bertholet, E., Bertolin, A., Betancourt, C., Betti, F., Bettler, M. O., van Beuzekom, M., Bershyiko, Ia., Bifani, S., Billoir, P., Birnkraut, A., Bizzeti, A., Bjorn, M., Blake, T., Blanc, F., Blusk, S., Bocci, V., Boente Garcia, O., Boettcher, T., Bondar, A., Bondar, N., Borghi, S., Borisyak, M., Borsato, M., Bossu, F., Boubdir, M., Bowcock, T. J. V., Bowen, E., Bozzi, C., Braun, S., Brodski, M., Brodzicka, J., Brundu, D., Buchanan, E., Burr, C., Bursche, A., Buytaert, J., Byczynski, W., Cadeddu, S., Cai, H., Calabrese, R., Calladine, R., Calvi, M., Calvo Gomez, M., Camboni, A., Campana, P., Perez, D. H. Campora, Capriotti, L., Carbone, A., Carboni, G., Cardinale, R., Cardini, A., Carniti, P., Carson, L., Carvalho Akiba, K., Casse, G., Cassina, L., Cattaneo, M., Cavallero, G., Cenci, R., Chamont, D., Chapman, M. G., Charles, M., Charpentier, Ph., Chatzikonstantinidis, G., Chefdeville, M., Chen, S., Chitic, S. -G., Chobanova, V., Chrzaszcz, M., Chubykin, A., Ciambrone, P., Cid Vidal, X., Ciezarek, G., Clarke, P. E. L., Clemencic, M., Cliff, H. V., Closier, J., Coco, V., Cogan, J., Cogneras, E., Cogoni, V., Cojocariu, L., Collins, P., Colombo, T., Comerma-Montells, A., Contu, A., Coombs, G., Coquereau, S., Corti, G., Corvo, M., Sobra, C. M. Costa, Couturier, B., Cowan, G. A., Craik, D. C., Crocombe, A., Cruz Torres, M., Currie, R., D'Ambrosio, C., Da Cunha Marinho, F., Da Silva, C. L., Dall'Occo, E., Dalseno, J., Danilina, A., Davis, A., Francisco, O. De Aguiar, De Bruyn, K., De Capua, S., De Cian, M., De Miranda, J. M., De Paula, L., De Serio, M., De Simone, P., Dean, C. T., Decamp, D., Del Buono, L., Delaney, B., Dembinski, H. -P., Demmer, M., Dendek, A., Derkach, D., Deschamps, O., Dettori, F., Dey, B., Di Canto, A., Di Nezza, P., Didenko, S., Dijkstra, H., Dordei, F., Dorigo, M., Dosil Suarez, A., Douglas, L., Dovbnya, A., Dreimanis, K., Dufour, L., Dujany, G., Durante, P., Durham, J. 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C., Hulsbergen, W., Humair, T., Hushchyn, M., Hutchcroft, D., Ibis, P., Idzik, M., Ilten, P., Ivshin, K., Jacobsson, R., Jalocha, J., Jans, E., Jawahery, A., Jiang, F., John, M., Johnson, D., Jones, C. R., Joram, C., Jost, B., Jurik, N., Kandybei, S., Karacson, M., Kariuki, J. M., Karodia, S., Kazeev, N., Kecke, M., Keizer, F., Kelsey, M., Kenzie, M., Ketel, T., Khairullin, E., Khanji, B., Khurewathanakul, C., Kim, K. E., Kirn, T., Klaver, S., Klimaszewski, K., Klimkovich, T., Koliiev, S., Kolpin, M., Kopecna, R., Koppenburg, P., Kotriakhova, S., Kozeiha, M., Kravchuk, L., Kreps, M., Kress, F., Krokovny, P., Krupa, W., Krzemien, W., Kucewicz, W., Kucharczyk, M., Kudryavtsev, V., Kuonen, A. 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D.C., Crocombe, A., Cruz Torres, M., Currie, R., D'Ambrosio, C., Da Cunha Marinho, F., Da Silva, C.L., Dall'Occo, E., Dalseno, J., Danilina, A., Davis, A., De Aguiar Francisco, O., De Bruyn, K., De Capua, S., De Cian, M., De Miranda, J.M., De Paula, L., De Serio, M., De Simone, P., Dean, C.T., Decamp, D., Del Buono, L., Delaney, B., Dembinski, H.-P., Demmer, M., Dendek, A., Derkach, D., Deschamps, O., Dettori, F., Dey, B., Di Canto, A., Di Nezza, P., Didenko, S., Dijkstra, H., Dordei, F., Dorigo, M., Dosil Suárez, A., Douglas, L., Dovbnya, A., Dreimanis, K., Dufour, L., Dujany, G., Durante, P., Durham, J.M., Dutta, D., Dzhelyadin, R., Dziewiecki, M., Dziurda, A., Dzyuba, A., Easo, S., Egede, U., Egorychev, V., Eidelman, S., Eisenhardt, S., Eitschberger, U., Ekelhof, R., Eklund, L., Ely, S., Ene, A., Escher, S., Esen, S., Evans, H.M., Evans, T., Falabella, A., Farley, N., Farry, S., Fazzini, D., Federici, L., Fernandez, G., Fernandez Declara, P., Fernandez Prieto, A., Ferrari, F., Ferreira Lopes, L., Ferreira Rodrigues, F., Ferro-Luzzi, M., Filippov, S., Fini, R.A., Fiorini, M., Firlej, M., Fitzpatrick, C., Fiutowski, T., Fleuret, F., Fontana, M., Fontanelli, F., Forty, R., Franco Lima, V., Frank, M., Frei, C., Fu, J., Funk, W., Färber, C., Gabriel, E., Gallas Torreira, A., Galli, D., Gallorini, S., Gambetta, S., Gandelman, M., Gandini, P., Gao, Y., Garcia Martin, L.M., Garcia Plana, B., García Pardiñas, J., Garra Tico, J., Garrido, L., Gascon, D., Gaspar, C., Gavardi, L., Gazzoni, G., Gerick, D., Gersabeck, E., Gersabeck, M., Gershon, T., Ghez, Ph., Gianì, S., Gibson, V., Girard, O.G., Giubega, L., Gizdov, K., Gligorov, V.V., Golubkov, D., Golutvin, A., Gomes, A., Gorelov, I.V., Gotti, C., Govorkova, E., Grabowski, J.P., Graciani Diaz, R., Granado Cardoso, L.A., Graugés, E., Graverini, E., Graziani, G., Grecu, A., Greim, R., Griffith, P., Grillo, L., Gruber, L., Gruberg Cazon, B.R., Grünberg, O., Gushchin, E., Guz, Yu., Gys, T., Göbel, C., Hadavizadeh, T., Hadjivasiliou, C., Haefeli, G., Haen, C., Haines, S.C., Hamilton, B., Han, X., Hancock, T.H., Hansmann-Menzemer, S., Harnew, N., Harnew, S.T., Hasse, C., Hatch, M., He, J., Hecker, M., Heinicke, K., Heister, A., Hennessy, K., Henry, L., van Herwijnen, E., Heß, M., Hicheur, A., Hill, D., Hopchev, P.H., Hu, W., Huang, W., Huard, Z.C., Hulsbergen, W., Humair, T., Hushchyn, M., Hutchcroft, D., Ibis, P., Idzik, M., Ilten, P., Ivshin, K., Jacobsson, R., Jalocha, J., Jans, E., Jawahery, A., Jiang, F., John, M., Johnson, D., Jones, C.R., Joram, C., Jost, B., Jurik, N., Kandybei, S., Karacson, M., Kariuki, J.M., Karodia, S., Kazeev, N., Kecke, M., Keizer, F., Kelsey, M., Kenzie, M., Ketel, T., Khairullin, E., Khanji, B., Khurewathanakul, C., Kim, K.E., Kirn, T., Klaver, S., Klimaszewski, K., Klimkovich, T., Koliiev, S., Kolpin, M., Kopecna, R., Koppenburg, P., Kotriakhova, S., Kozeiha, M., Kravchuk, L., Kreps, M., Kress, F., Krokovny, P., Krupa, W., Krzemien, W., Kucewicz, W., Kucharczyk, M., 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J., Wilson, F. F., Wotton, S. A., Zarebski, K. A., and Zonneveld, J. B.
Subjects: Particles and field, Nuclear and High Energy Physics, Particle physics, B physics, CP violation, Flavor physics, Hadron-Hadron scattering, (experiments), DOUBLE CHARM DECAYS, B physic, media_common.quotation_subject, Hadrons, 01 natural sciences, Asymmetry, Hadron-Hadron scattering (experiments), Settore FIS/04 - Fisica Nucleare e Subnucleare, Physics, Particles & Fields, NO, TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY, 0103 physical sciences, Physic, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, 010306 general physics, Large Hadron Collider (France and Switzerland), 01 Mathematical Sciences, media_common, Physics, Luminosity (scattering theory), Science & Technology, 02 Physical Sciences, 010308 nuclear & particles physics, hep-ex, Gran Col·lisionador d'Hadrons, Nuclear & Particles Physics, HEP, LHCb, Flavor physic, Physical Sciences, lcsh:QC770-798, LHC, Física de partícules, Experiments
Abstract: The CP asymmetry in B − → D s − D 0 and B − → D − D 0 decays is measured using LHCb data corresponding to an integrated luminosity of 3.0 fb−1, collected in pp collisions at centre-of-mass energies of 7 and 8 TeV. The results are $$ {\mathcal{A}}^{CP}\left({B}^{-}\to {D}_s^{-}{D}^0\right)=\left(-0.4\pm 0.5\pm 0.5\right)\%\kern0.5em \mathrm{and}\kern0.5em {\mathcal{A}}^{CP}\left({B}^{-}\to {D}^{-}{D}^0\right)=\left(2.3\pm 2.7\pm 0.4\right)\% $$ A C P B − → D s − D 0 = − 0.4 ± 0.5 ± 0.5 % and A C P B − → D − D 0 = 2.3 ± 2.7 ± 0.4 % , where the first uncertainties are statistical and the second systematic. This is the first measurement of $$ {\mathcal{A}}^{CP}\left({B}^{-}\to {D}_s^{-}{D}^0\right) $$ A C P B − → D s − D 0 and the most precise determination of $$ {\mathcal{A}}^{CP}\left({B}^{-}\to {D}^{-}{D}^0\right) $$ A C P B − → D − D 0 . Neither result shows evidence of CP violation.
Published: 2018
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49. Observation of Bs0→D¯*0ϕ and search for B0→D¯0ϕ decays

Author: Aaij, R., Adeva, B., Adinolfi, M., Aidala, C. A., Ajaltouni, Z., Akar, S., Albicocco, P., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves, A. A., Amato, S., Amerio, S., Amhis, Y., An, L., Anderlini, L., Andreassi, G., Andreotti, M., Andrews, J. E., Appleby, R. B., Archilli, F., d’Argent, P., Arnau Romeu, J., Artamonov, A., Artuso, M., Arzymatov, K., Aslanides, E., Atzeni, M., Bachmann, S., Back, J. J., Baker, S., Balagura, V., Baldini, W., Baranov, A., Barlow, R. J., Barsuk, S., Barter, W., Baryshnikov, F., Batozskaya, V., Batsukh, B., Battista, V., Bay, A., Beddow, J., Bedeschi, F., Bediaga, I., Beiter, A., Bel, L. J., Beliy, N., Bellee, V., Belloli, N., Belous, K., Belyaev, I., Ben-Haim, E., Bencivenni, G., Benson, S., Beranek, S., Berezhnoy, A., Bernet, R., Berninghoff, D., Bertholet, E., Bertolin, A., Betancourt, C., Betti, F., Bettler, M. O., van Beuzekom, M., Bezshyiko, Ia., Bifani, S., Billoir, P., Birnkraut, A., Bizzeti, A., Bjørn, M., Blake, T., Blanc, F., Blusk, S., Bobulska, D., Bocci, V., Boente Garcia, O., Boettcher, T., Bondar, A., Bondar, N., Borghi, S., Borisyak, M., Borsato, M., Bossu, F., Boubdir, M., Bowcock, T. J. V., Bozzi, C., Braun, S., Brodski, M., Brodzicka, J., Brundu, D., Buchanan, E., Buonaura, A., Burr, C., Bursche, A., Buytaert, J., Byczynski, W., Cadeddu, S., Cai, H., Calabrese, R., Calladine, R., Calvi, M., Calvo Gomez, M., Camboni, A., Campana, P., Campora Perez, D. H., Capriotti, L., Carbone, A., Carboni, G., Cardinale, R., Cardini, A., Carniti, P., Carson, L., Carvalho Akiba, K., Casse, G., Cassina, L., Cattaneo, M., Cavallero, G., Cenci, R., Chamont, D., Chapman, M. G., Charles, M., Charpentier, Ph., Chatzikonstantinidis, G., Chefdeville, M., Chekalina, V., Chen, C., Chen, S., Chitic, S.-G., Chobanova, V., Chrzaszcz, M., Chubykin, A., Ciambrone, P., Cid Vidal, X., Ciezarek, G., Clarke, P. E. L., Clemencic, M., Cliff, H. V., Closier, J., Coco, V., Cogan, J., Cogneras, E., Cojocariu, L., Collins, P., Colombo, T., Comerma-Montells, A., Contu, A., Coombs, G., Coquereau, S., Corti, G., Corvo, M., Costa Sobral, C. M., Couturier, B., Cowan, G. A., Craik, D. C., Crocombe, A., Cruz Torres, M., Currie, R., D’Ambrosio, C., Da Cunha Marinho, F., Da Silva, C. L., Dall’Occo, E., Dalseno, J., Danilina, A., Davis, A., De Aguiar Francisco, O., De Bruyn, K., De Capua, S., De Cian, M., De Miranda, J. M., De Paula, L., De Serio, M., De Simone, P., Dean, C. T., Decamp, D., Del Buono, L., Delaney, B., Dembinski, H.-P., Demmer, M., Dendek, A., Derkach, D., Deschamps, O., Dettori, F., Dey, B., Di Canto, A., Di Nezza, P., Didenko, S., Dijkstra, H., Dordei, F., Dorigo, M., Dosil Suárez, A., Douglas, L., Dovbnya, A., Dreimanis, K., Dufour, L., Dujany, G., Durante, P., Durham, J. M., Dutta, D., Dzhelyadin, R., Dziewiecki, M., Dziurda, A., Dzyuba, A., Easo, S., Egede, U., Egorychev, V., Eidelman, S., Eisenhardt, S., Eitschberger, U., Ekelhof, R., Eklund, L., Ely, S., Ene, A., Escher, S., Esen, S., Evans, H. M., Evans, T., Falabella, A., Farley, N., Farry, S., Fazzini, D., Federici, L., Fernandez, G., Fernandez Declara, P., Fernandez Prieto, A., Ferrari, F., Ferreira Lopes, L., Ferreira Rodrigues, F., Ferro-Luzzi, M., Filippov, S., Fini, R. A., Fiorini, M., Firlej, M., Fitzpatrick, C., Fiutowski, T., Fleuret, F., Fontana, M., Fontanelli, F., Forty, R., Franco Lima, V., Frank, M., Frei, C., Fu, J., Funk, W., Färber, C., Féo Pereira Rivello Carvalho, M., Gabriel, E., Gallas Torreira, A., Galli, D., Gallorini, S., Gambetta, S., Gandelman, M., Gandini, P., Gao, Y., Garcia Martin, L. M., Garcia Plana, B., García Pardiñas, J., Garra Tico, J., Garrido, L., Gascon, D., Gaspar, C., Gavardi, L., Gazzoni, G., Gerick, D., Gersabeck, E., Gersabeck, M., Gershon, T., Ghez, Ph., Gianì, S., Gibson, V., Girard, O. G., Giubega, L., Gizdov, K., Gligorov, V. V., Golubkov, D., Golutvin, A., Gomes, A., Gorelov, I. V., Gotti, C., Govorkova, E., Grabowski, J. P., Graciani Diaz, R., Granado Cardoso, L. A., Graugés, E., Graverini, E., Graziani, G., Grecu, A., Greim, R., Griffith, P., Grillo, L., Gruber, L., Gruberg Cazon, B. R., Grünberg, O., Gu, C., Gushchin, E., Guz, Yu., Gys, T., Göbel, C., Hadavizadeh, T., Hadjivasiliou, C., Haefeli, G., Haen, C., Haines, S. C., Hamilton, B., Han, X., Hancock, T. H., Hansmann-Menzemer, S., Harnew, N., Harnew, S. T., Hasse, C., Hatch, M., He, J., Hecker, M., Heinicke, K., Heister, A., Hennessy, K., Henry, L., van Herwijnen, E., Heß, M., Hicheur, A., Hill, D., Hilton, M., Hopchev, P. H., Hu, W., Huang, W., Huard, Z. 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Schmelzer, T, Schmidt, B, Schneider, O, Schopper, A, Schreiner, H, Schubiger, M, Schune, M, Schwemmer, R, Sciascia, B, Sciubba, A, Semennikov, A, Sepulveda, E, Sergi, A, Serra, N, Serrano, J, Sestini, L, Seyfert, P, Shapkin, M, Shcheglov, Y, Shears, T, Shekhtman, L, Shevchenko, V, Shmanin, E, Siddi, B, Silva Coutinho, R, Silva De Oliveira, L, Simi, G, Simone, S, Skidmore, N, Skwarnicki, T, Smith, E, Smith, I, Smith, M, Soares, M, Soares Lavra, L, Sokoloff, M, Soler, F, Souza De Paula, B, Spaan, B, Spradlin, P, Stagni, F, Stahl, M, Stahl, S, Stefko, P, Stefkova, S, Steinkamp, O, Stemmle, S, Stenyakin, O, Stepanova, M, Stevens, H, Stone, S, Storaci, B, Stracka, S, Stramaglia, M, Straticiuc, M, Straumann, U, Strokov, S, Sun, J, Sun, L, Swientek, K, Syropoulos, V, Szumlak, T, Szymanski, M, T'Jampens, S, Tang, Z, Tayduganov, A, Tekampe, T, Tellarini, G, Teubert, F, Thomas, E, Van Tilburg, J, Tilley, M, Tisserand, V, Tobin, M, Tolk, S, Tomassetti, L, Tonelli, D, Tou, D, Tourinho Jadallah Aoude, R, Tournefier, E, Traill, M, Tran, M, Trisovic, A, Tsaregorodtsev, A, Tully, A, Tuning, N, Ukleja, A, Usachov, A, Ustyuzhanin, A, Uwer, U, Vacca, C, Vagner, A, Vagnoni, V, Valassi, A, Valat, S, Valenti, G, Vazquez Gomez, R, Vazquez Regueiro, P, Vecchi, S, Van Veghel, M, Velthuis, J, Veltri, M, Veneziano, G, Venkateswaran, A, Verlage, T, Vernet, M, Vesterinen, M, Viana Barbosa, J, Vieira, D, Vieites Diaz, M, Viemann, H, Vilasis-Cardona, X, Vitkovskiy, A, Vitti, M, Volkov, V, Vollhardt, A, Voneki, B, Vorobyev, A, Vorobyev, V, Voß, C, De Vries, J, Vázquez Sierra, C, Waldi, R, Walsh, J, Wang, J, Wang, M, Wang, Y, Wang, Z, Ward, D, Wark, H, Watson, N, Websdale, D, Weiden, A, Weisser, C, Whitehead, M, Wicht, J, Wilkinson, G, Wilkinson, M, Williams, M, Williams, T, Wilson, F, Wimberley, J, Winn, M, Wishahi, J, Wislicki, W, Witek, M, Wormser, G, Wotton, S, Wyllie, K, Xiao, D, Xie, Y, Xu, A, Xu, M, Xu, Q, Xu, Z, Yang, Z, Yao, Y, Yin, H, Yu, J, Yuan, X, Yushchenko, O, Zarebski, K, Zavertyaev, M, Zhang, D, Zhang, L, Zhang, W, Zhang, Y, Zhelezov, A, Zheng, Y, Zhu, X, Zhukov, V, Zonneveld, J, and Zucchelli, S
Subjects: Flavor physics, Nuclear and High Energy Physics, CP violation, Hadron-Hadron Scattering, Physics and Astronomy (miscellaneous), Charm physics, NO
Abstract: The first observation of the \ud B\ud 0\ud s\ud →\ud ¯\ud D\ud *\ud 0\ud ϕ\ud decay is reported, with a significance of more than seven standard deviations, from an analysis of \ud p\ud p\ud collision data corresponding to an integrated luminosity of \ud 3\ud \ud \ud fb\ud −\ud 1\ud , collected with the LHCb detector at center-of-mass energies of 7 and 8 TeV. The branching fraction is measured relative to that of the topologically similar decay \ud B\ud 0\ud →\ud ¯\ud D\ud 0\ud π\ud +\ud π\ud −\ud and is found to be \ud B\ud (\ud B\ud 0\ud s\ud →\ud ¯\ud D\ud *\ud 0\ud ϕ\ud )\ud =\ud (\ud 3.7\ud ±\ud 0.5\ud ±\ud 0.3\ud ±\ud 0.2\ud )\ud ×\ud 1\ud 0\ud −\ud 5\ud , where the first uncertainty is statistical, the second systematic, and the third from the branching fraction of the \ud B\ud 0\ud →\ud ¯\ud D\ud 0\ud π\ud +\ud π\ud −\ud decay. The fraction of longitudinal polarization in this decay is measured to be \ud f\ud L\ud =\ud (\ud 73\ud ±\ud 15\ud ±\ud 4\ud )\ud %\ud . The most precise determination of the branching fraction for the \ud B\ud 0\ud s\ud →\ud ¯\ud D\ud 0\ud ϕ\ud decay is also obtained, \ud B\ud (\ud B\ud 0\ud s\ud →\ud ¯\ud D\ud 0\ud ϕ\ud )\ud =\ud (\ud 3.0\ud ±\ud 0.3\ud ±\ud 0.2\ud ±\ud 0.2\ud )\ud ×\ud 1\ud 0\ud −\ud 5\ud . An upper limit, \ud B\ud (\ud B\ud 0\ud →\ud ¯\ud D\ud 0\ud ϕ\ud )\ud
Published: 2018

50. Measurement of CP violation in B 0 → J/ψK S0 and B 0 → ψ(2S)K S0 decays

Author: Aaij, R, Adeva, B, Adinolfi, M, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreotti, M, Andrews, JE, Appleby, RB, Archilli, F, d’Argent, P, Arnau Romeu, J, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Baalouch, M, Babuschkin, I, Bachmann, S, Back, JJ, Badalov, A, Baesso, C, Baker, S, Balagura, V, Baldini, W, Baranov, A, Barlow, RJ, Barschel, C, Barsuk, S, Barter, W, Baryshnikov, F, Batozskaya, V, Battista, V, Bay, A, Beaucourt, L, Beddow, J, Bedeschi, F, Bediaga, I, Beiter, A, Bel, LJ, Beliy, N, Bellee, V, Belloli, N, Belous, K, Belyaev, I, Ben-Haim, E, Bencivenni, G, Benson, S, Beranek, S, Berezhnoy, A, Bernet, R, Berninghoff, D, Bertholet, E, Bertolin, A, Betancourt, C, Betti, F, Bettler, MO, van Beuzekom, M, Bezshyiko, I, Bifani, S, Billoir, P, Birnkraut, A, Bizzeti, A, Bjørn, M, Blake, T, Blanc, F, Blusk, S, Bocci, V, Boettcher, T, Bondar, A, Bondar, N, Bordyuzhin, I, Borgheresi, A, Borghi, S, Borisyak, M, Borsato, M, Bossu, F, Boubdir, M, Bowcock, TJV, Bowen, E, Bozzi, C, Braun, S, Britton, T, Brodzicka, J, Brundu, D, and Buchanan, E
Subjects: Quantum Physics, CKM angle beta, hep-ex, Molecular, Nuclear & Particles Physics, Atomic, B physics, Mathematical Sciences, Hadron-Hadron scattering, Flavor physics, CP violation, Particle and Plasma Physics, Physical Sciences, Nuclear, Mathematical Physics
Abstract: A measurement is presented of decay-time-dependent CP violation in the decays B0 → J/ψKS0 and B0 → ψ(2S)KS0, where the J/ψ is reconstructed from two electrons and the ψ(2S) from two muons. The analysis uses a sample of pp collision data recorded with the LHCb experiment at centre-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3 fb−1. The CP -violation observables are measured to beC(B0→J/ψKS0)=0.12±0.07±0.02,S(B0→J/ψKS0)=0.83±0.08±0.01,C(B0→ψ(2S)KS0)=−0.05±0.10±0.01,S(B0→ψ(2S)KS0)=0.84±0.10±0.01,where C describes CP violation in the direct decay, and S describes CP violation in the interference between the amplitudes for the direct decay and for the decay after B0− B¯ 0 oscillation. The first uncertainties are statistical and the second are systematic. The two sets of results are compatible with the previous LHCb measurement using B0 → J/ψ KS0 decays, where the J/ψ meson was reconstructed from two muons. The averages of all three sets of LHCb results areC(B0→[cc¯]KS0)=−0.017±0.029,S(B0→[cc¯]KS0)=0.760±0.034,under the assumption that higher-order contributions to the decay amplitudes are negligible. The uncertainties include statistical and systematic contributions.[Figure not available: see fulltext.].
Published: 2017

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