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The decay B- -> Lambda(+)(c)(Lambda) over bar K--(c)- is studied in proton-proton collisions at a center-of-mass energy of root s = 13 TeV using data corresponding to an integrated luminosity of 5 fb(-1) collected by the LHCb experiment. In the Lambda K-+(c)- system, the Xi(c)(2930)(0) state observed at the BABAR and Belle experiments is resolved into two narrower states, Xi(c)(2923)(0) and Xi(c)(2939)(0), whose masses and widths are measured to be m(Xi(c)(2930)(0) = 2924.5 +/- 0.4 +/- 1.1 Mev, m Xi(c)(2930)(0)) = 2938.5 +/- 0.9 +/- 2.3 Mev, Gamma(Xi(c)(2930)(0)) = 4.8 +/- 0.9 +/- 1.5 MeV, Gamma(Xi(c)(2930)(0) - 11.0 +/- 1.9 +/- 7.5 MeV, where the first uncertainties are statistical and the second systematic. The results are consistent with a previous LHCb measurement using a prompt Lambda K-+(c)- sample. Evidence of a new Xi(c)(2930)(0) state is found with a local significance of 3.8 sigma, whose mass and width are measured to be 2881.8 +/- 3.1 +/- 8.5 MeV and 12.4 +/- 5.3 +/- 5.8 MeV, respectively. In addition, evidence of a new decay mode Xi(c)(2930)(0) -> Lambda K-+(c) is found with a significance of 3.7 sigma. The relative branching fraction of B- -> Lambda(+)(c)(Lambda) over bar K--(c)- with respect to the B- -> D+D-K- decay is measured to be 2.36 +/- 0.11 +/- 0.22 +/- 0.25, where the first uncertainty is statistical, the second systematic and the third originates from the branching fractions of charm hadron decays. (LHCb Collaboration)
Study of the B−→Λc+Λ¯c−K− decay [Study of the B- → Λc+(Λ)over-barc-K- decay] / R. Aaij, A. . .A.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 108:1(2023 Jul 27), pp. 012020.1-012020.15. [10.1103/physrevd.108.012020]
Study of the B−→Λc+Λ¯c−K− decay [Study of the B- → Λc+(Λ)over-barc-K- decay]
Aaij, R.;Abdelmotteleb, A. S. W.;Abellan Beteta, C.;Abudinén, F.;Ackernley, T.;Adeva, B.;Adinolfi, M.;Adlarson, P.;Afsharnia, H.;Agapopoulou, C.;Aidala, C. A.;Aiola, S.;Ajaltouni, Z.;Akar, S.;Akiba, K.;Albrecht, J.;Alessio, F.;Alexander, M.;Alfonso Albero, A.;Aliouche, Z.;Alvarez Cartelle, P.;Amalric, R.;Amato, S.;Amey, J. L.;Amhis, Y.;An, L.;Anderlini, L.;Andersson, M.;Andreianov, A.;Andreotti, M.;Andreou, D.;Ao, D.;Archilli, F.;Artamonov, A.;Artuso, M.;Aslanides, E.;Atzeni, M.;Audurier, B.;Bachmann, S.;Bachmayer, M.;Back, J. J.;Bailly-reyre, A.;Baladron Rodriguez, P.;Balagura, V.;Baldini, W.;Baptista de Souza Leite, J.;Barbetti, M.;Barlow, R. J.;Barsuk, S.;Barter, W.;Bartolini, M.;Baryshnikov, F.;Basels, J. M.;Bassi, G.;Batsukh, B.;Battig, A.;Bay, A.;Beck, A.;Becker, M.;Bedeschi, F.;Bediaga, I. B.;Beiter, A.;Belavin, V.;Belin, S.;Bellee, V.;Belous, K.;Belov, I.;Belyaev, I.;Benane, G.;Bencivenni, G.;Ben-Haim, E.;Berezhnoy, A.;Bernet, R.;Bernet Andres, S.;Berninghoff, D.;Bernstein, H. C.;Bertella, C.;Bertolin, A.;Betancourt, C.;Betti, F.;Bezshyiko, Ia.;Bhasin, S.;Bhom, J.;Bian, L.;Bieker, M. S.;Biesuz, N. V.;Bifani, S.;Billoir, P.;Biolchini, A.;Birch, M.;Bishop, F. C. R.;Bitadze, A.;Bizzeti, A.;Blago, M. P.;Blake, T.;Blanc, F.;Blank, J. E.;Blusk, S.;Bobulska, D.;Boelhauve, J. A.;Boente Garcia, O.;Boettcher, T.;Boldyrev, A.;Bolognani, C. S.;Bolzonella, R.;Bondar, N.;Borgato, F.;Borghi, S.;Borsato, M.;Borsuk, J. T.;Bouchiba, S. A.;Bowcock, T. J. V.;Boyer, A.;Bozzi, C.;Bradley, M. J.;Braun, S.;Brea Rodriguez, A.;Brodzicka, J.;Brossa Gonzalo, A.;Brown, J.;Brundu, D.;Buonaura, A.;Buonincontri, L.;Burke, A. T.;Burr, C.;Bursche, A.;Butkevich, A.;Butter, J. S.;Buytaert, J.;Byczynski, W.;Cadeddu, S.;Cai, H.;Calabrese, R.;Calefice, L.;Cali, S.;Calladine, R.;Calvi, M.;Calvo Gomez, M.;Campana, P.;Campora Perez, D. H.;Campoverde Quezada, A. F.;Capelli, S.;Capriotti, L.;Carbone, A.;Carboni, G.;Cardinale, R.;Cardini, A.;Carniti, P.;Carus, L.;Casais Vidal, A.;Caspary, R.;Casse, G.;Cattaneo, M.;Cavallero, G.;Cavallini, V.;Celani, S.;Cerasoli, J.;Cervenkov, D.;Chadwick, A. J.;Chapman, M. G.;Charles, M.;Charpentier, Ph.;Chavez Barajas, C. A.;Chefdeville, M.;Chen, C.;Chen, S.;Chernov, A.;Chernyshenko, S.;Chobanova, V.;Cholak, S.;Chrzaszcz, M.;Chubykin, A.;Chulikov, V.;Ciambrone, P.;Cicala, M. F.;Cid Vidal, X.;Ciezarek, G.;Ciullo, G.;Clarke, P. E. L.;Clemencic, M.;Cliff, H. V.;Closier, J.;Cobbledick, J. L.;Coco, V.;Coelho, J. A. B.;Cogan, J.;Cogneras, E.;Cojocariu, L.;Collins, P.;Colombo, T.;Congedo, L.;Contu, A.;Cooke, N.;Corredoira, I.;Corti, G.;Couturier, B.;Craik, D. C.;Cruz Torres, M.;Currie, R.;Da Silva, C. L.;Dadabaev, S.;Dai, L.;Dai, X.;Dall'Occo, E.;Dalseno, J.;D'Ambrosio, C.;Daniel, J.;Danilina, A.;d'Argent, P.;Davies, J. E.;Davis, A.;De Aguiar Francisco, O.;de Boer, J.;De Bruyn, K.;De Capua, S.;De Cian, M.;De Freitas Carneiro Da Graca, U.;De Lucia, E.;De Miranda, J. M.;De Paula, L.;De Serio, M.;De Simone, D.;De Simone, P.;De Vellis, F.;de Vries, J. A.;Dean, C. T.;Debernardis, F.;Decamp, D.;Dedu, V.;Del Buono, L.;Delaney, B.;Dembinski, H. -P.;Denysenko, V.;Deschamps, O.;Dettori, F.;Dey, B.;Di Nezza, P.;Diachkov, I.;Didenko, S.;Dieste Maronas, L.;Ding, S.;Dobishuk, V.;Dolmatov, A.;Dong, C.;Donohoe, A. M.;Dordei, F.;dos Reis, A. C.;Douglas, L.;Downes, A. G.;Duda, P.;Dudek, M. W.;Dufour, L.;Duk, V.;Durante, P.;Duras, M. M.;Durham, J. M.;Dutta, D.;Dziurda, A.;Dzyuba, A.;Easo, S.;Egede, U.;Egorychev, V.;Eidelman, S.;Eirea Orro, C.;Eisenhardt, S.;Ejopu, E.;Ek-In, S.;Eklund, L.;Ely, S.;Ene, A.;Epple, E.;Escher, S.;Eschle, J.;Esen, S.;Evans, T.
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B.;Rodrigues, E.;Rodriguez Fernandez, E.;Rodriguez Lopez, J. A.;Rodriguez Rodriguez, E.;Rolf, D. L.;Rollings, A.;Roloff, P.;Romanovskiy, V.;Romero Lamas, M.;Romero Vidal, A.;Roth, J. D.;Rotondo, M.;Rudolph, M. S.;Ruf, T.;Ruiz Fernandez, R. A.;Ruiz Vidal, J.;Ryzhikov, A.;Ryzka, J.;Saborido Silva, J. J.;Sagidova, N.;Sahoo, N.;Saitta, B.;Salomoni, M.;Sanchez Gras, C.;Sanderswood, I.;Santacesaria, R.;Santamarina Rios, C.;Santimaria, M.;Santovetti, E.;Saranin, D.;Sarpis, G.;Sarpis, M.;Sarti, A.;Satriano, C.;Satta, A.;Saur, M.;Savrina, D.;Sazak, H.;Scantlebury Smead, L. G.;Scarabotto, A.;Schael, S.;Scherl, S.;Schiller, M.;Schindler, H.;Schmelling, M.;Schmidt, B.;Schmitt, S.;Schneider, O.;Schopper, A.;Schubiger, M.;Schulte, S.;Schune, M. H.;Schwemmer, R.;Sciascia, B.;Sciuccati, A.;Sellam, S.;Semennikov, A.;Senghi Soares, M.;Sergi, A.;Serra, N.;Sestini, L.;Seuthe, A.;Shang, Y.;Shangase, D. 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2023
Abstract
The decay B- -> Lambda(+)(c)(Lambda) over bar K--(c)- is studied in proton-proton collisions at a center-of-mass energy of root s = 13 TeV using data corresponding to an integrated luminosity of 5 fb(-1) collected by the LHCb experiment. In the Lambda K-+(c)- system, the Xi(c)(2930)(0) state observed at the BABAR and Belle experiments is resolved into two narrower states, Xi(c)(2923)(0) and Xi(c)(2939)(0), whose masses and widths are measured to be m(Xi(c)(2930)(0) = 2924.5 +/- 0.4 +/- 1.1 Mev, m Xi(c)(2930)(0)) = 2938.5 +/- 0.9 +/- 2.3 Mev, Gamma(Xi(c)(2930)(0)) = 4.8 +/- 0.9 +/- 1.5 MeV, Gamma(Xi(c)(2930)(0) - 11.0 +/- 1.9 +/- 7.5 MeV, where the first uncertainties are statistical and the second systematic. The results are consistent with a previous LHCb measurement using a prompt Lambda K-+(c)- sample. Evidence of a new Xi(c)(2930)(0) state is found with a local significance of 3.8 sigma, whose mass and width are measured to be 2881.8 +/- 3.1 +/- 8.5 MeV and 12.4 +/- 5.3 +/- 5.8 MeV, respectively. In addition, evidence of a new decay mode Xi(c)(2930)(0) -> Lambda K-+(c) is found with a significance of 3.7 sigma. The relative branching fraction of B- -> Lambda(+)(c)(Lambda) over bar K--(c)- with respect to the B- -> D+D-K- decay is measured to be 2.36 +/- 0.11 +/- 0.22 +/- 0.25, where the first uncertainty is statistical, the second systematic and the third originates from the branching fractions of charm hadron decays. (LHCb Collaboration)
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simulazione ASN
Il report seguente simula gli indicatori relativi alla propria produzione scientifica in relazione alle soglie ASN 2023-2025 del proprio SC/SSD. Si ricorda che il superamento dei valori soglia (almeno 2 su 3) è requisito necessario ma non sufficiente al conseguimento dell'abilitazione. La simulazione si basa sui dati IRIS e sugli indicatori bibliometrici alla data indicata e non tiene conto di eventuali periodi di congedo obbligatorio, che in sede di domanda ASN danno diritto a incrementi percentuali dei valori. La simulazione può differire dall'esito di un’eventuale domanda ASN sia per errori di catalogazione e/o dati mancanti in IRIS, sia per la variabilità dei dati bibliometrici nel tempo. Si consideri che Anvur calcola i valori degli indicatori all'ultima data utile per la presentazione delle domande.
