Nothing Special   »   [go: up one dir, main page]

CERN Accelerating science

Главная страница > Результаты поиска: recid:2014838
Указания для поиска
Расширенный поиск
Add to Search +
Искать коллекции:
Сортировать по: Представить результаты: Формат вывода:
CERN Document Server 2,013 записей найдено  1 - 10следующийконец  перейти к записи: Поиск длился 0.38 секунд. 
1.
(100)
$B$ Decays and Lepton Flavour (Universality) Violation / Crivellin, Andreas (CERN)
LHCb found hints for physics beyond the standard model in $B\to K^*\mu^+\mu^-$, $B\to K^*\mu^+\mu^-/B\to K^*e^+e^-$ and $B_s\to\phi\mu^+\mu^-$. In addition, the BABAR results for $B\to D^{(*)}\tau\nu$ and the CMS excess in $h\to\tau^\pm\mu^\mp$ also point towards lepton flavour (universality) violating new physics. [...]
arXiv:1505.01527; CERN-PH-TH-2015-109; CERN-PH-TH-2015-109.- Geneva Geneva : CERN, CERN, 2016-07 - 8 p. - Published in : Nuovo Cimento C 38 (2016) 134 Fulltext: arXiv:1505.01527 - PDF; fulltext - PDF; SIF Open Access article: PDF; External link: Preprint
In : 29th Rencontres de Physique de La Vallée d'Aoste, La Thuile, Aosta Valley, Italy, 1 - 7 Mar 2015, pp.134
Подробная запись - Подобные записи
2.
(91)
New Physics in $B$ decays / Crivellin, Andreas (CERN)
While the LHC did not observe direct evidence for physics beyond the standard model, indirect hints for new physics were uncovered in the flavour sector in the decays $B\to K^*\mu^+\mu^-$, $B\to K\mu^+\mu^-/B\to Ke^+e^-$, $B_s\to\phi\mu^+\mu^-$, $B\to D^{(*)}\tau\nu$ and $h\to\tau^\pm\mu^\mp$. Each observable deviates from the SM predictions at the $2-3\,\sigma$ level only, but combining all $b\to s\mu^+\mu^-$ data via a global fit, one finds $4-5\,\sigma$ difference for NP compared to the SM and combining $B\to D^{*}\tau\nu$ with $B\to D\tau\nu$ one obtains $3.9\,\sigma$. [...]
CERN-PH-TH-2015-270; arXiv:1511.04015; CERN-PH-TH-2015-270.- Geneva : CERN, 2016-04-26 - 9 p. - Published in : EPJ Web Conf. 118 (2016) 01007 Fulltext: PDF; Preprint: PDF; External link: Preprint
In : Workshop on Flavour changing and conserving processes 2015, Anacapri, Capri Island, Italy, 10 - 12 Sep 2015, pp.01007
Подробная запись - Подобные записи
3.
(15)
Lepton-flavour violating $B$ decays in generic $Z'$ models / Crivellin, Andreas (CERN) ; Hofer, Lars (Barcelona, Autonoma U.) ; Matias, Joaquim (Barcelona, Autonoma U.) ; Nierste, Ulrich (KIT, Karlsruhe, TTP) ; Pokorski, Stefan (Warsaw U.) ; Rosiek, Janusz (Warsaw U.)
LHCb has reported deviations from the SM expectations in $B\to K^* \mu^+\mu^-$ angular observables, in $B_s\to\phi\mu^+\mu^-$ and in ratio $R(K)=Br[B\to K \mu^+\mu^-]/Br[B\to K e^+e^-]$. For all three decays, a heavy neutral gauge boson mediating $b\to s\mu^+\mu^-$ transitions is a prime candidate for an explanation. [...]
arXiv:1504.07928; CERN-PH-TH-2015-091.- Geneva : CERN, 2015 - 10 p. - Published in : Phys. Rev. D 92 (2015) 054013 APS Open Access article: PDF; Fulltext: PDF; External link: Preprint
Подробная запись - Подобные записи
4.
(10)
Effective field theory approach to $b\to s\ell\ell^{(\prime)}$, $B\to K^{(*)}\nu\bar{\nu}$ and $B\to D^{(*)}\tau\nu$ with third generation couplings / Calibbi, Lorenzo (Beijing, Inst. Theor. Phys. ; Brussels U.) ; Crivellin, Andreas (CERN) ; Ota, Toshihiko (Saitama U.)
LHCb reported anomalies in $B\to K^* \mu^+\mu^-$, $B_s\to\phi\mu^+\mu^-$ and $R(K)=B\to K \mu^+\mu^-/B\to K e^+e^-$. Furthermore, BaBar, BELLE and LHCb found hints for the violation of lepton flavour universality violation in $R(D^{(*)})=B\to D^{(*)}\tau\nu/B\to D^{(*)}\ell\nu$. [...]
arXiv:1506.02661; CERN-PH-TH-2015-134; STUPP-15-222; CERN-PH-TH-2015-134; STUPP-15-222.- Geneva : CERN, 2015-10-27 - 6 p. - Published in : Phys. Rev. Lett. 115 (2015) 181801 APS Open Access article: PDF; Fulltext: PDF; External link: Preprint
Подробная запись - Подобные записи
5.
(10)
Tauonic $B$ decays and Higgs mediated flavour violation / Crivellin, Andreas (CERN)
In these proceedings we review the impact of the tauonic $B$ decays $B\to\tau\nu$, $B\to D\tau\nu$ and $B\to D^*\tau\nu$ on Higgs mediated flavour violation. [...]
arXiv:1410.8557. - 2014. - 6 p.
Preprint - Full text
Подробная запись - Подобные записи
6.
(8)
Explaining the LHC flavour anomalies / Crivellin, Andreas (CERN) ; D'Ambrosio, Giancarlo (CERN) ; Heeck, Julian (Brussels U.)
The LHC observed deviations from the Standard Model (SM) in the flavour sector: LHCb found a $4.3\,\sigma$ discrepancy compared to the SM in $b\to s\mu\mu$ transitions and CMS reported a non-zero measurement of $h\to\mu\tau$ with a significance of $2.4\,\sigma$. Here we discuss how these deviations from the SM can be explained, focusing on two models with gauged $L_\mu-L_\tau$ symmetry. [...]
arXiv:1505.02026; CERN-PH-TH-2015-111.- Geneva Geneva : CERN, CERN, 2015 - 6 p. - Published in : , pp. 101-106 Fulltext: PDF; Preprint: PDF; fulltext: PDF; External link: Preprint
In : 50th Rencontres de Moriond on QCD and High Energy Interactions, La Thuile, Italy, 21 - 28 Mar 2015, pp.101-106
Подробная запись - Подобные записи
7.
(7)
Lifetime of $B_c^-$ Constrains Explanations for Anomalies in $B\to D^{(*)}\tau\nu$ / Alonso, Rodrigo (CERN) ; Grinstein, Benjamín (UC, San Diego) ; Martin Camalich, Jorge (CERN)
We investigate a new constraint on new-physics interpretations of the anomalies observed in $B\to D^{(*)}\tau\nu$ decays making use of the lifetime of the $B_c^-$ meson. A constraint is obtained by demanding that the rate for $B_c^-\to\tau^-\bar\nu$ does not exceed the fraction of the total width that is allowed by the calculation of the lifetime in the standard model. [...]
arXiv:1611.06676; CERN-TH-2016-230.- 2017-02-22 - 7 p. - Published in : Phys. Rev. Lett. 118 (2017) 081802 APS Open Access article: PDF; Fulltext: 10.1103_PhysRevLett.118.081802 - PDF; arXiv:1611.06676 - PDF; External link: Preprint
Подробная запись - Подобные записи
8.
(6)
Charged Higgs: Interpretation of $B$-physics results / Crivellin, Andreas (CERN)
In these proceedings we review the impact of additional Higgs bosons on $B$ physics observables. For this purpose, we consider first the 2HDM of type II which respects natural flavour conservation. [...]
arXiv:1412.2512; CERN-PH-TH-2014-251; CERN-PH-TH-2014-251.- SISSA, 2015-02-18 - 9 p. - Published in : PoS Charged2014 (2015) 015 Fulltext: PDF; Published version from PoS: PDF; External link: PoS server
In : 5th International Workshop: Prospects for Charged Higgs Discovery at Colliders, Uppsala, Sweden, 16 - 18 Sep 2014, pp.015
Подробная запись - Подобные записи
9.
(6)
Electroweak Penguin Decays at LHCb / Blake, Thomas (Warwick U.) /LHCb Collaboration
Rare $b\to s\mu^+\mu^-$ decays are flavour changing neutral current processes that are forbidden at the lowest perturbative order in the Standard Model. As a consequence, new particles in SM extensions can significantly affect the branching fractions of these decays and their angular distributions. [...]
SISSA, 2019 - 4 p. - Published in : PoS ICHEP2018 (2019) 122 Fulltext: PDF;
In : XXXIX International Conference on High Energy Physics, Seoul, Korea, 4 - 11 Jul 2018, pp.122
Подробная запись - Подобные записи
10.
(6)
Explaining $h\to\mu^\pm\tau^\mp$, $B\to K^* \mu^+\mu^-$ and $B\to K \mu^+\mu^-/B\to K e^+e^-$ in a two-Higgs-doublet model with gauged $L_\mu-L_\tau$ / Crivellin, Andreas (CERN) ; D'Ambrosio, Giancarlo (CERN ; INFN, Naples) ; Heeck, Julian (Brussels U.)
The LHC observed so far three deviations from the Standard Model (SM) predictions in flavour observables: LHCb reported anomalies in $B\to K^* \mu^+\mu^-$ and $R(K)=B\to K \mu^+\mu^-/B\to K e^+e^-$ while CMS found an excess in $h\to\mu\tau$. We show, for the first time, how these deviations from the SM can be explained within a single well-motivated model: a two-Higgs-doublet model with gauged $L_\mu-L_\tau$ symmetry. [...]
arXiv:1501.00993; CERN-PH-TH-2015-001; ULB-TH-14-26; CERN-PH-TH-2015-001; ULB-TH-14-26.- Geneva : CERN, 2015-04-14 - 6 p. - Published in : Phys. Rev. Lett. 114 (2015) 151801 APS Open Access article: PDF; Fulltext: PDF; External link: Preprint
Подробная запись - Подобные записи

не нашли то, что искали? Попробуйте поискать на других серверах
recid:2014838 в Amazon
recid:2014838 в CERN EDMS
recid:2014838 в CERN Intranet
recid:2014838 в CiteSeer
recid:2014838 в Google Books
recid:2014838 в Google Scholar
recid:2014838 в Google Web
recid:2014838 в IEC		recid:2014838 в IHS
recid:2014838 в INSPIRE
recid:2014838 в ISO
recid:2014838 в KISS Books/Journals
recid:2014838 в KISS Preprints
recid:2014838 в NEBIS
recid:2014838 в SLAC Library Catalog