دورية أكاديمية

Direct observation of the dead-cone effect in quantum chromodynamics

التفاصيل البيبلوغرافية
العنوان: Direct observation of the dead-cone effect in quantum chromodynamics
المؤلفون: Acharya, S., Adamova, D., Adler, A., Adolfsson, J., Aglieri Rinella, Rinella, Agnello, M., Agrawal, N., Ahammed, Z., Ahmad, S., Ahn, S.U., Ahuja, I., Akbar, Z., Akindinov, A., Al-Turany, M., Alam, S.N., Aleksandrov, D., Alessandro, B., Alfanda, H.M., Alfaro Molina, Molina, Ali, B., Ali, Y., Alici, A., Alizadehvandchali, N., Alkin, A., Alme, Johan, Altenkaemper, Lucas, Alt, Torsten, Altsybeev, I., Anaam, M.N., Andrei, C., Andreou, D., Andronic, A., Angeletti, M., Anguelov, V., Antinori, F., Antonioli, P., Anuj, C., Apadula, N., Aphecetche, L., Appelshauser, H., Arcelli, S., Arnaldi, R., Arsene, Ionut Cristian, Arslandok, M., Augustinus, A., Averbeck, R., Aziz, S., Azmi, M.D., Badala, A., Baek, Y.W., Bai, X., Bailhache, R., Bailung, Y., Bala, R., Balbino, A., Baldisseri, A., Balis, B., Ball, M., Banerjee, D., Barbera, R., Barioglio, L., Barlou, M., Barnafoldi, G.G., Barnby, L.S., Barret, V., Bartels, C., Barth, K., Bartsch, E., Baruffaldi, F., Bastid, N., Basu, S., Batigne, G., Batyunya, B., Bauri, D., Bazo Alba, Alba, Bearden, I.G., Beattie, C., Belikov, I., Bell Hechavarria, Hechavarria, Bellini, F., Bellwied, R., Belokurova, S., Belyaev, V., Bencedi, G., Beole, S., Bercuci, A., Berdnikov, Y., Berdnikova, A., Bergmann, L., Besoiu, M.G., Betev, L., Bhaduri, P.P., Bhasin, A., Bhat, M.A., Bhattacharjee, B., Bhattacharya, P., Bianchi, L., Bianchi, N., Bielˇcik, J., Bielˇcikova, J., Biernat, J., Bilandzic, A., Biro, G., Biswas, S., Blair, J.T., Blau, D., Blidaru, M.B., Blume, C., Boca, G., Bock, F., Bogdanov, A., Boi, S., Bok, J., Boldizsar, L., Bolozdynya, A., Bombara, M., Bond, P.M., Bonomi, G., Borel, H., Borissov, A., Bossi, H., Botta, E., Bratrud, Lars Karlot Stubberud, Braun-Munzinger, P., Bregant, M., Broz, M., Bruno, G.E., Buckland, M.D., Budnikov, D., Buesching, H., Bufalino, S., Bugnon, O., Buhler, P., Buthelezi, Z., Butt, J.B., Bysiak, S.A., Caffarri, D., Cai, M., Caines, H., Caliva, A., Villar, E. Calvo, Camacho, J.M.M., Camacho, R.S., Camerini, P., Canedo, F.D.M., Carnesecchi, F., Caron, R., Castillo Castellanos, Castellanos, Casula, E.A.R., Catalano, F., Ceballos Sanchez, Sanchez, Chakraborty, P., Chandra, S., Chapeland, S., Chartier, M., Chattopadhyay, S., Chauvin, A., Chavez, T.G., Cheshkov, C., Cheynis, B., Chibante Barroso, Barroso, Chinellato, D.D., Cho, S., Chochula, P., Christakoglou, P., Christensen, C.H., Christiansen, P., Chujo, T., Cicalo, C., Cifarelli, L., Cindolo, F., Ciupek, M.R., Clai, G., Cleymans, J., Colamaria, F., Colburn, J.S., Colella, D., Collu, A., Colocci, M., Concas, M., Conesa Balbastre, Balbastre, Conesa del Valle, del, Contin, G., Contreras, J.G., Coquet, M.L., Cormier, T.M., Cortese, P., Cosentino, M.R., Costa, F., Costanza, S., Crochet, P., Cruz-Torres, R., Cuautle, E., Cui, P., Cunqueiro, L., Dainese, A., Damas, F.P.A., Danisch, M.C., Danu, A., Das, I., Das, P., Das, S., Dash, S., De, S., De Caro, Caro, de Cataldo, Cataldo, De Cilladi, Cilladi, de Cuveland, Cuveland, De Falco, Falco, De Gruttola, Gruttola, De Marco, Marco, De Martin, Martin, De Pasquale, Pasquale, Deb, S., Degenhardt, H.F., Deja, K.R., Dello Stritto, Stritto, Delsanto, S., Deng, W., Dhankher, P., Di Bari, Bari, Di Mauro, Mauro, Diaz, R.A., Dietel, T., Ding, Y., Divia, R., Dixit, D.U., Djuvsland, Øystein, Dmitrieva, U., Do, J., Dobrin, A., Donigus, B., Dordic, Olja, Dubey, A.K., Dubla, A., Dudi, S., Dukhishyam, M., Dupieux, P., Dzalaiova, N., Eder, T.M., Ehlers, R.J., Eikeland, Viljar Nilsen, Eisenhut, F., Elia, D., Erazmus, B., Ercolessi, F., Erhardt, F., Erokhin, A., Ersdal, Magnus Rentsch, Espagnon, B., Eulisse, G., Evans, D., Evdokimov, S., Fabbietti, L., Faggin, M., Faivre, J., Fan, F., Fantoni, A., Fasel, M., Fecchio, P., Feliciello, A., Feofilov, G., Fernandez Tellez, Tellez, Ferrero, A., Ferretti, A., Feuillard, V.J.G., Figiel, J., Filchagin, S., Finogeev, D., Fionda, Fiorella Maria Celeste, Fiorenza, G., Flor, F., Flores, A.N., Foertsch, S., Foka, P., 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المصدر: Nature ; 440-446 ; 605
بيانات النشر: Springer Nature
سنة النشر: 2022
المجموعة: University of Bergen: Bergen Open Research Archive (BORA-UiB)
الوصف: In particle collider experiments, elementary particle interactions with large momentum transfer produce quarks and gluons (known as partons) whose evolution is governed by the strong force, as described by the theory of quantum chromodynamics (QCD)1. These partons subsequently emit further partons in a process that can be described as a parton shower2, which culminates in the formation of detectable hadrons. Studying the pattern of the parton shower is one of the key experimental tools for testing QCD. This pattern is expected to depend on the mass of the initiating parton, through a phenomenon known as the dead-cone effect, which predicts a suppression of the gluon spectrum emitted by a heavy quark of mass mQ and energy E, within a cone of angular size mQ/E around the emitter3. Previously, a direct observation of the dead-cone effect in QCD had not been possible, owing to the challenge of reconstructing the cascading quarks and gluons from the experimentally accessible hadrons. We report the direct observation of the QCD dead cone by using new iterative declustering techniques4,5 to reconstruct the parton shower of charm quarks. This result confirms a fundamental feature of QCD. Furthermore, the measurement of a dead-cone angle constitutes a direct experimental observation of the non-zero mass of the charm quark, which is a fundamental constant in the standard model of particle physics. ; publishedVersion
نوع الوثيقة: article in journal/newspaper
وصف الملف: application/pdf
اللغة: English
تدمد: 0028-0836
العلاقة: urn:issn:0028-0836; https://hdl.handle.net/11250/3037776Test; https://doi.org/10.1038/s41586-022-04572-wTest; cristin:2054701; Nature. 2022, 605, 440-446.
DOI: 10.1038/s41586-022-04572-w
الإتاحة: https://doi.org/10.1038/s41586-022-04572-wTest
https://hdl.handle.net/11250/3037776Test
حقوق: Navngivelse 4.0 Internasjonal ; http://creativecommons.org/licenses/by/4.0/deed.noTest ; Copyright 2022 the authors
رقم الانضمام: edsbas.B30A50CC
قاعدة البيانات: BASE
الوصف
تدمد:00280836
DOI:10.1038/s41586-022-04572-w