Flavor physics of leptons and dipole moments (2008)
Raidal, M., Bigi, I., Mangano, M.L., Semertzidis, Y., Abel, S., ...
This chapter of the report of the ``Flavour in the era of the LHC'' Workshop discusses the theoretical, phenomenological and experimental issues related to flavour phenomena in the charged lepton...
Flavor physics of leptons and dipole moments (2008)
Raidal, M, Bigi, I, Mangano, ML, Semertzidis, Y, Abel, S, ...
This chapter of the report of the ``Flavor in the era of the LHC'' Workshop discusses the theoretical, phenomenological and experimental issues related to flavor phenomena in the charged lepton...
Flavor physics of leptons and dipole moments (2008)
Raidal, M, Bigi, I, Mangano, ML, Semertzidis, Y, Abel, S, ...
This chapter of the report of the “Flavor in the era of the LHC” Workshop discusses the theoretical, phenomenological and experimental issues related to flavor phenomena in the charged lepton...
Collider aspects of flavour physics at high Q (2008)
Lari, T., Pape, L., Porod, W., Aguilar-Saavedra, J. A., Del Aguila, F., Allanach, B. C., ...
This review presents flavour related issues in the production and decays of heavy states at LHC, both from the experimental side and from the theoretical side. We review top quark physics and discuss...
Flavour physics of leptons and dipole moments (2008)
Raidal, M., Bigi, I., Mangano, M. L., Semertzidis, Y., Abel, S., ...
This chapter of the report of the ``Flavour in the era of the LHC'' Workshop discusses the theoretical, phenomenological and experimental issues related to flavour phenomena in the charged lepton...
Flavour Physics of Leptons and Dipole Moments. (2008)
M. Raidal, DESY Forschung Hochenergiephysik, I. Bigi, M.L. Mangano, Y. Semertzidis, ...
Internal report | Preprint
Direct determination of neutrino mass parameters at future colliders (2007)
Kadastik, M., Raidal, M., Rebane, L.
If the observed light neutrino masses are induced by their Yukawa couplings to singlet right-handed neutrinos, natural smallness of those renders direct collider tests of the electroweak scale...
Testing neutrino masses in little Higgs models via discovery of doubly charged Higgs at LHC (2007)
Hektor, A., Kadastik, M., Muntel, M., Raidal, M., Rebane, L.
We have investigated the possibility of direct tests of little Higgs models incorporating triplet Higgs neutrino mass mechanism at LHC experiments. We have performed Monte Carlo studies of Drell-Yan...
CMS physics technical design report, volume II: Physics performance (2007)
Bayatian, G. L., Chatrchyan, S., Hmayakyan, G., Sirunyan, A. M., Adam, W., Bergauer, T., ...
CMS is a general purpose experiment, designed to study the physics of pp collisions at 14 TeV at the Large Hadron Collider ( LHC). It currently involves more than 2000 physicists from more than 150...
Allanach, B. C., Grojean, C., Skands, P., Accomando, E., Azuelos, G., Baer, H., ...
The work contained herein constitutes a report of the "Beyond the Standard Model'' working group for the Workshop "Physics at TeV Colliders", Les Houches, France, 2-20 May, 2005. We present reviews...
Accomando, E, Azuelos, Georges, Baer, H, Balázs, C, Bélanger, G, Benakli, Karim, ...
The work contained herein constitutes a report of the "Beyond the Standard Model'' working group for the Workshop "Physics at TeV Colliders", Les Houches, France, 2-20 May, 2005. We present reviews...
Allanach, B. C., Grojean, C., Skands, P., Accomando, E., Azuelos, G., Baer, H., ...
The work contained herein constitutes a report of the "Beyond the Standard Model'' working group for the Workshop "Physics at TeV Colliders", Les Houches, France, 2-20 May, 2005. We present reviews...
Allanach, B. C., Grojean, C., Skands, P., Accomando, E., Azuelos, G., Baer, H., ...
The work contained herein constitutes a report of the "Beyond the Standard Model'' working group for the Workshop "Physics at TeV Colliders", Les Houches, France, 2-20 May, 2005. We present reviews...
Allanach, B. C., Grojean, C., Skands, P., Accomando, E., Azuelos, G., Baer, H., ...
The work contained herein constitutes a report of the "Beyond the Standard Model'' working group for the Workshop "Physics at TeV Colliders", Les Houches, France, 2-20 May, 2005. We present reviews...
Running of Low-Energy Neutrino Masses, Mixing Angles and CP Violation (2005)
Ellis, J, Hektor, A, Kadastik, M, Kannike, K, Raidal, M
We calculate the running of low-energy neutrino parameters from the bottom up, parameterizing the unknown seesaw parameters in terms of the dominance matrix $R$. We find significant running only if...
Running of Low-Energy Neutrino Masses, Mixing Angles and CP Violation (2005)
Ellis, Jonathan Richard, Hektor, A, Kadastik, M, Kannike, K, Raidal, M
We calculate the running of low-energy neutrino parameters from the bottom up, parameterizing the unknown seesaw parameters in terms of the dominance matrix $R$. We find significant running only if...
Seesaw mechanism and the baryon asymmetry (2004)
I review the present understanding of connection between the non-zero neutrino masses and the baryon asymmetry of the Universe. The state-of-art results are presented for the standard thermal...
Leptogenesis in the minimal supersymmetric triplet seesaw model (2004)
D'Ambrosio, G., Hambye, T., Hektor, A., Raidal, M., Rossi, A.
In the supersymmetric triplet (type-II) seesaw model, in which a single SU(2)_L-triplet couples to leptons, the high-energy neutrino flavour structure can be directly determined from the low-energy...
Towards a complete theory of thermal leptogenesis in the SM and MSSM (2003)
Giudice, G. F., Notari, A., Raidal, M., Riotto, A., Strumia, A.
We perform a thorough study of thermal leptogenesis adding finite temperature effects, RGE corrections, scatterings involving gauge bosons and by properly avoiding overcounting on-shell processes....
Ellis, J., Raidal, M., Yanagida, T.
We reconsider the possibility that inflation was driven by a sneutrino - the scalar supersymmetric partner of a heavy singlet neutrino - in the minimal seesaw model of neutrino masses. We show that...
Higgs-mediated Bs,d0-->μτ,eτ and /τ-->3μ,eμμ decays in supersymmetric seesaw models. (2002)
Dedes, A., Ellis, J., Raidal, M.
We study the rates allowed for the Higgs-mediated decays Bs,d0→μτ,eτ and τ→μμμ,eμμ in supersymmetric seesaw models, assuming that the only source of lepton flavour violation (LFV) is the...
Predictions of the most minimal see-saw model (2002)
We derive the most minimal see-saw texture from an extra-dimensional dynamics. It predicts theta_13 = 0.078 \pm 0.015 and m_ee = 2.6 \pm 0.4 meV. Assuming thermal leptogenesis, the sign of the...
Dedes, A., Ellis, J., Raidal, M.
We study the rates allowed for the Higgs-mediated decays $B_{s,d}^0\to\mu\tau, e\tau$ and $\tau\to \mu\mu\mu, e\mu\mu$ in supersymmetric seesaw models, assuming that the only source of lepton flavour...
Testing Left-Right Symmetric Gauge Theories at e^+e^- Colliders (2000)
If the Standard Model is embedded in a left-right symmetric gauge theory at the TeV scale, the pair production of light W-bosons in e^+e^- collisions, e^+e^- -> W^+W^-, will be affected by mixings in...
Flavour Violation in SUSY SU(5) GUT at Large tan beta (2000)
Barenboim, G., Huitu, K., Raidal, M.
We study flavour violation in the minimal SUSY SU(5) GUT assuming all the third generation Yukawa couplings to be due to the renormalizable physics above GUT scale. At large $\tan\beta,$ as suggested...
CMS : the TriDAS Project Technical Design Report; v.1, the Trigger Systems (2000)
L. Bayatyan, G., Grigorian, N., G. Khachatrian, V., T. Margarian, A., M. Sirunyan, A., Adam, W., ...
CMS : the TriDAS Project Technical Design Report; v.1, the Trigger Systems (2000)
L. Bayatyan, G., Grigorian, N., G. Khachatrian, V., T. Margarian, A., M. Sirunyan, A., Adam, W., ...
Tests of the left-right electroweak model at linear collider (1999)
Huitu, K., Maalampi, J., Pandita, P. N., Puolamaki, K., Raidal, M., Romanenko, N.
The left-right model is a gauge theory of electroweak interactions based on the gauge symmetry SU(2)_R . The main motivations for this model are that it gives an explanation for the parity violation...
Supersymmetry and CP Violating Asymmetries in $B_{d,s}$ Decays (1999)
We study possible effects of supersymmetry (SUSY) in CP asymmetries in non-leptonic $B_{d,s}$ decays in a variety of SUSY flavour models considered in literature. We use both mass insertion and...
CP Asymmetries in B_s Decays and Spontaneous CP violation (1999)
Barenboim, G., Bernabeu, J., Matias, J., Raidal, M.
We study possible effects of new physics in CP asymmetries in two-body $B_s$ decays in left-right models with spontaneous CP violation. Considering the contributions of new CP phases to the $B_s$...
Doubly Charged Higgsino Pair Production and Decays in e+e- Collisions (1998)
In supersymmetric grand unified theories, light higgsino multiplets generally exist in addition to the familiar chargino/neutralino multiplets of the minimal supersymmetric extension of the Standard...
CP asymmetries in B0 decays in the left-right model (1997)
Barenboim, G., Bernabeu, J., Raidal, M.
We study time dependent CP asymmetries in B^0_{d,s} decays in the left-right model with spontaneous breakdown of CP. Due to the new contributions to B^0-\bar B^0 mixing the CP asymmetries can be...
New constraints on R-parity violation from \mu-e conversion in nuclei (1997)
Huitu, K., Maalampi, J., Raidal, M., Santamaria, A.
We derive new constraints on the products of explicitly R-parity violating couplings $\lambda$ and $\lambda'$ in MSSM from searches for \mu-e conversion in nuclei. We concentrate on the loop induced...
\mu-e conversion in nuclei versus \mu-->e \gamma : an effective field theory point of view (1997)
Using an effective lagrangian description we analyze possible new physics contributions to the most relevant muon number violating processes: $\mu \to e \gamma$ and $\mu$--$e$ conversion in nuclei....
Lower Bounds on Bilepton Processes at e-e- and mu-mu- Colliders (1997)
We show that the cross section of at least one of the s-channel processes e-e- (mu-mu-) --> l_i^- l_i^-, i=e,mu,tau, mediated by a doubly-charged scalar triplet bilepton is bounded from below and...
Mass of tau neutrino in SO(10) GUT-s (1997)
We investigate the allowed ranges of masses for an unstable tau neutrino in the context of SO(10) GUT-s. In light of the new nucleosynthesis results we obtain that there is a narrow window for...
Heavy neutrino mixing and single production at Linear Collider (1997)
Gluza, J., Maalampi, J., Raidal, M., Zralek, M.
We study the single production of heavy neutrinos via the processes $e^-e^+ \to \nu N$ and $e^-\gamma \to W^- N$ at future linear colliders. As a base of our considerations we take a wide class of...
Spontaneous CP violation and the B system (1997)
Barenboim, G., Bernabeu, J., Raidal, M.
We investigate effects of spontaneous breakdown of CP in $B^0_{d,s}-\overline{B^0}_{d,s}$ systems in left-right symmetric models. Assuming that the left-right contribution to the $B^0-\overline{B^0}$...
Testing the left-right symmetric model at linear collider (1997)
Huitu, K., Maalampi, J., Pietila, A., Raidal, M., Vuopionpera, R.
We review possible tests of the left-right electroweak model at future linear colliders, concentrating on signatures of the central predictions of the model, i.e. right-handed currents, massive...
Physics with e+ e- linear colliders (1997)
Accomando, E, Andreazza, A, Anlauf, H, Ballestrero, A, Barklow, T, Bartels, Jochen, ...
Constraints on doubly charged Higgs interactions at linear collider (1996)
Barenboim, G., Huitu, K., Maalampi, J., Raidal, M.
Production of a single doubly charged Higgs boson $Delta^{--}$ in polarized $e^+e^-$ and $e^+\gamma$ collision modes of the linear collider have been investigated. The mass range of $Delta^{--}$ to...
Constraints on the Wr mass and CP-violation in left-right models (1996)
Barenboim, G., Bernabeu, J., Prades, J., Raidal, M.
We update the constraints on the right-handed $W_R$ gauge boson mass, mixing angle $\zeta$ with the left-handed $W_L$ gauge boson, and other parameters in general left-right symmetric models with...
Spontaneous CP violation in the left-right model and the kaon system (1996)
Barenboim, G., Bernabeu, J., Raidal, M.
A left-right model with spontaneous $CP$ breakdown, consistent with the particle physics phenomenology, is presented. Constraints on free parameters of the model: mass of the new right handed gauge...
Non-decoupling and lepton number violation in left-right models (1996)
We argue that large non-decoupling effects of heavy neutrinos can appear naturally in manifestly left-right symmetric models due to the minimization conditions of the scalar potential and the...
Doubly charged Higgs at LHC (1996)
Huitu, K., Maalampi, J., Pietila, A., Raidal, M.
We have investigated production of doubly charged Higgs particles $\Delta_{L,R}^{++}$ via WW fusion process in proton-proton collisions at LHC energies in the framework of the left-right symmetric...
Single W-boson production in e-\gamma colliders (1996)
Huitu, K., Maalampi, J., Raidal, M.
Single $W$-boson production in $e^-\gamma$ collisions with polarized beams is investigated. In the framework of the Standard Model the updated estimates for the measurement precision of photon...
The $W_R$ production in $e\gamma$ collisions (1995)
Huitu, K., Maalampi, J., Raidal, M.
We consider the production of a single right-handed gauge boson $W_R$ in the high-energy $e^-\gamma$ collisions with polarized beams. If the associated neutrino is light, the reaction will give the...
Phenomenological implications of supersymmetry in left-right electroweak model. (1995)
Huitu, K., Maalampi, J., Raidal, M.
The basics of a supersymmetric left-right model are reviewed. The production and subsequent decays of the doubly charged triplet higgsino $ \tilde\Delta^{\pm\pm}$ in the Next Linear Collider are...
Extended electroweak models and their tests in future colliders / (1995)
Diss. -- Helsingin yliopisto.
Supersymmetric Left-Right Model and its Phenomenological Implications (1994)
Huitu, K., Maalampi, J., Raidal, M.
We review here our study of a supersymmetric left-right model (SLRM). In the model the $R$-parity is spontaneously broken. Phenomenologically novel feature of the model is the occurrance of the...
Slepton pair production in e+e- collision in supersymmetric left-right model (1994)
Huitu, K., Maalampi, J., Raidal, M.
The pair production of sleptons in electron-positron collisions is investigated in a supersymmetric left-right model. The cross section is found considerably larger than in the minimal supersymmetric...
Supersymmetric Left-Right Model and its Tests in Linear Colliders (1993)
Huitu, K., Maalampi, J., Raidal, M.
We investigate phenomenological implications of a supersymmetric left-right model based on $SU(2)_L\times SU(2)_R\times U(1)_{B-L}\,$ gauge symmetry testable in the next generation linear colliders....