2024

Permanent URI for this collectionhttps://dl.bhu.ac.in/bhuir/handle/123456789/36736

Browse

Now showing 1 - 2 of 2

Expanding neutrino oscillation parameter measurements in NOvA using a Bayesian approach
(American Physical Society, 2024) M.A. Acero; B. Acharya; P. Adamson; N. Anfimov; A. Antoshkin; E. Arrieta-Diaz; L. Asquith; A. Aurisano; A. Back; N. Balashov; P. Baldi; B.A. Bambah; A. Bat; K. Bays; R. Bernstein; T.J.C. Bezerra; V. Bhatnagar; D. Bhattarai; B. Bhuyan; J. Bian; A.C. Booth; R. Bowles; B. Brahma; C. Bromberg; N. Buchanan; A. Butkevich; S. Calvez; T.J. Carroll; E. Catano-Mur; J.P. Cesar; A. Chatla; S. Chaudhary; R. Chirco; B.C. Choudhary; A. Christensen; T.E. Coan; A. Cooleybeck; L. Cremonesi; G.S. Davies; P.F. Derwent; P. Ding; Z. Djurcic; M. Dolce; D. Doyle; D. Dueñas Tonguino; E.C. Dukes; A. Dye; R. Ehrlich; M. Elkins; E. Ewart; P. Filip; J. Franc; M.J. Frank; H.R. Gallagher; F. Gao; A. Giri; R.A. Gomes; M.C. Goodman; M. Groh; R. Group; A. Habig; F. Hakl; J. Hartnell; R. Hatcher; M. He; K. Heller; V. Hewes; A. Himmel; B. Jargowsky; J. Jarosz; F. Jediny; C. Johnson; M. Judah; I. Kakorin; D.M. Kaplan; A. Kalitkina; J. Kleykamp; O. Klimov; L.W. Koerner; L. Kolupaeva; R. Kralik; A. Kumar; C.D. Kuruppu; V. Kus; T. Lackey; K. Lang; P. Lasorak; J. Lesmeister; A. Lister; J. Liu; J.A. Lock; M. Lokajicek; M. Macmahon; S. Magill; W.A. Mann; M.T. Manoharan; M. Manrique Plata; M.L. Marshak; M. Martinez-Casales; V. Matveev; B. Mehta; M.D. Messier; H. Meyer; T. Miao; V. Mikola; W.H. Miller; S. Mishra; S.R. Mishra; R. Mohanta; A. Moren; A. Morozova; W. Mu; L. Mualem; M. Muether; K. Mulder; D. Myers; D. Naples; A. Nath; S. Nelleri; J.K. Nelson; R. Nichol; E. Niner; A. Norman; A. Norrick; T. Nosek; H. Oh; A. Olshevskiy; T. Olson; A. Pal; J. Paley; L. Panda; R.B. Patterson; G. Pawloski; O. Petrova; R. Petti; R.K. Plunkett; L.R. Prais; A. Rafique; V. Raj; M. Rajaoalisoa; B. Ramson; B. Rebel; P. Roy; O. Samoylov; M.C. Sanchez; S. Sánchez Falero; P. Shanahan; P. Sharma; A. Sheshukov; S. Shukla; D.K. Singha; W. Shorrock; I. Singh; P. Singh; V. Singh; E. Smith; J. Smolik; P. Snopok; N. Solomey; A. Sousa; K. Soustruznik; M. Strait; L. Suter; A. Sutton; K. Sutton; S. Swain; C. Sweeney; A. Sztuc; B. Tapia Oregui; P. Tas; T. Thakore; J. Thomas; E. Tiras; Y. Torun; J. Trokan-Tenorio; J. Urheim; P. Vahle; Z. Vallari; K.J. Vockerodt; T. Vrba; M. Wallbank; T.K. Warburton; M. Wetstein; D. Whittington; D.A. Wickremasinghe; T. Wieber; J. Wolcott; M. Wrobel; S. Wu; W. Wu; Y. Xiao; B. Yaeggy; A. Yankelevich; K. Yonehara; Y. Yu; S. Zadorozhnyy; J. Zalesak; R. Zwaska
NOvA is a long-baseline neutrino oscillation experiment that measures oscillations in charged-current νμ→νμ (disappearance) and νμ→νe (appearance) channels, and their antineutrino counterparts, using neutrinos of energies around 2 GeV over a distance of 810 km. In this work we reanalyze the dataset first examined in our previous paper [Phys. Rev. D 106, 032004 (2022)PRVDAQ2470-001010.1103/PhysRevD.106.032004] using an alternative statistical approach based on Bayesian Markov chain Monte Carlo. We measure oscillation parameters consistent with the previous results. We also extend our inferences to include the first NOvA measurements of the reactor mixing angle θ13, where we find 0.071≤sin22θ13≤0.107, and the Jarlskog invariant, where we observe no significant preference for the CP-conserving value J=0 over values favoring CP violation. We use these results to examine the effects of constraints from short-baseline measurements of θ13 using antineutrinos from nuclear reactors when making NOvA measurements of θ23. Our long-baseline measurement of θ13 is shown to be consistent with the reactor measurements, supporting the general applicability and robustness of the Pontecorvo-Maki-Nakagawa-Sakata framework for neutrino oscillations. © 2024 authors.
Search for CP -Violating Neutrino Nonstandard Interactions with the NOvA Experiment
(American Physical Society, 2024) M.A. Acero; B. Acharya; P. Adamson; L. Aliaga; N. Anfimov; A. Antoshkin; E. Arrieta-Diaz; L. Asquith; A. Aurisano; A. Back; N. Balashov; P. Baldi; B.A. Bambah; A. Bat; K. Bays; R. Bernstein; T.J.C. Bezerra; V. Bhatnagar; D. Bhattarai; B. Bhuyan; J. Bian; A.C. Booth; R. Bowles; B. Brahma; C. Bromberg; N. Buchanan; A. Butkevich; S. Calvez; T.J. Carroll; E. Catano-Mur; J.P. Cesar; A. Chatla; S. Chaudhary; R. Chirco; B.C. Choudhary; A. Christensen; M.F. Cicala; T.E. Coan; A. Cooleybeck; C. Cortes-Parra; D. Coveyou; L. Cremonesi; G.S. Davies; P.F. Derwent; Z. Djurcic; M. Dolce; D. Doyle; D. Dueñas Tonguino; E.C. Dukes; A. Dye; R. Ehrlich; E. Ewart; P. Filip; J. Franc; M.J. Frank; H.R. Gallagher; F. Gao; A. Giri; R.A. Gomes; M.C. Goodman; M. Groh; R. Group; A. Habig; F. Hakl; J. Hartnell; R. Hatcher; M. He; K. Heller; V. Hewes; A. Himmel; Y. Ivaneev; A. Ivanova; B. Jargowsky; J. Jarosz; C. Johnson; M. Judah; I. Kakorin; D.M. Kaplan; A. Kalitkina; J. Kleykamp; O. Klimov; L.W. Koerner; L. Kolupaeva; R. Kralik; C.D. Kuruppu; V. Kus; T. Lackey; K. Lang; J. Lesmeister; A. Lister; J. Liu; J.A. Lock; M. Lokajicek; M. Macmahon; S. Magill; W.A. Mann; M.T. Manoharan; M. Manrique Plata; M.L. Marshak; M. Martinez-Casales; V. Matveev; B. Mehta; M.D. Messier; H. Meyer; T. Miao; V. Mikola; W.H. Miller; S. Mishra; S.R. Mishra; A. Mislivec; R. Mohanta; A. Moren; A. Morozova; W. Mu; L. Mualem; M. Muether; K. Mulder; D. Myers; D. Naples; A. Nath; S. Nelleri; J.K. Nelson; R. Nichol; E. Niner; A. Norman; A. Norrick; T. Nosek; H. Oh; A. Olshevskiy; T. Olson; M. Ozkaynak; A. Pal; J. Paley; L. Panda; R.B. Patterson; G. Pawloski; O. Petrova; R. Petti; L.R. Prais; A. Rafique; V. Raj; M. Rajaoalisoa; B. Ramson; M. Ravelhofer; B. Rebel; P. Roy; O. Samoylov; M.C. Sanchez; S. Sánchez Falero; P. Shanahan; P. Sharma; A. Shmakov; A. Sheshukov; S. Shukla; D.K. Singha; W. Shorrock; I. Singh; P. Singh; V. Singh; E. Smith; J. Smolik; P. Snopok; N. Solomey; A. Sousa; K. Soustruznik; M. Strait; L. Suter; A. Sutton; K. Sutton; S. Swain; C. Sweeney; A. Sztuc; B. Tapia Oregui; P. Tas; T. Thakore; J. Thomas; E. Tiras; Y. Torun; J. Tripathi; J. Trokan-Tenorio; J. Urheim; P. Vahle; Z. Vallari; J. Vasel; J.D. Villamil; K.J. Vockerodt; T. Vrba; M. Wallbank; M. Wetstein; D. Whittington; D.A. Wickremasinghe; T. Wieber; J. Wolcott; M. Wrobel; S. Wu; W. Wu; Y. Xiao; B. Yaeggy; A. Yahaya; A. Yankelevich; K. Yonehara; Y. Yu; S. Zadorozhnyy; J. Zalesak; R. Zwaska
This Letter reports a search for charge-parity (CP) symmetry violating nonstandard interactions (NSI) of neutrinos with matter using the NOvA Experiment, and examines their effects on the determination of the standard oscillation parameters. Data from νμ(ν¯μ)→νμ(ν¯μ) and νμ(ν¯μ)→νe(ν¯e) oscillation channels are used to measure the effect of the NSI parameters Iµeμ and Iµeτ. With 90% CL the magnitudes of the NSI couplings are constrained to be |Iµeμ| 0.3 and |Iµeτ| 0.4. A degeneracy at |Iµeτ|≈1.8 is reported, and we observe that the presence of NSI limits sensitivity to the standard CP phase δCP. © 2024 authors.