--- /dev/null
+#include "isajet/pilot.h"
+ SUBROUTINE SSMHN(MHLNEG)
+C-----------------------------------------------------------------------
+C
+C Calculate HL, HH masses and ALFAH
+C (scalar Higgs mixing angle) using radiative
+C corrections calculated by M. Bisset
+C and save results in /SSPAR/.
+C
+C Both top and bottom couplings are now
+C included. Non-degenerate mixed squark
+C masses and A-terms are also included.
+C The D-terms from the squark mass matrix
+C (terms prop. to g**2 * Yukawa coupling)
+C are included as an option:
+C INRAD = 1 ==> D-TERMS ON
+C INRAD = 2 ==> D-TERMS OFF .
+C
+C 10/18/93 D-terms are now turned on.
+C INRAD = 1
+C
+C There is an arbitrary mass scale that must
+C chosen to avoid dimensionful logarithms.
+C The choice does not matter if D-terms are
+C not included, but it does matter if D-terms
+C are included.
+C
+C Arbitrary mass scale updated to
+C QQQ = HIGFRZ = SQRT(AMTLSS*AMTRSS)
+C with running masses to include dominant 2-loop
+C effects. 12/10/96 H. Baer
+C
+C It is assumed that the A-terms are real.
+C Complex A-terms are allowed
+C (unless RTT=0 or RBB=0 --see below) in
+C this subroutine, but the imaginary parts
+C are now set to zero.
+C
+C-----------------------------------------------------------------------
+#if defined(CERNLIB_IMPNONE)
+ IMPLICIT NONE
+#endif
+#include "isajet/sslun.inc"
+#include "isajet/sssm.inc"
+#include "isajet/sspar.inc"
+C
+ REAL PI,PI2,SR2,G2,GP2,GGP,GG1,GG2
+ REAL TANB,COTB,COSB,SINB,BE
+ REAL SINB2,COSB2,COS2B,SIN2B
+ REAL V2,VP2,V,VP,VVP,VPVM,VVPP
+ REAL MT2,MB2,FT2,FB2,MW2,ZAP,QQQ2
+ REAL EP,EP2,RR,MHP2
+ REAL ATI,ABI,ATR,ABR,AT2,AB2
+ REAL TLRM,BLRM,TLRP,BLRP
+ REAL MST1SQ,MST2SQ,MSB1SQ,MSB2SQ
+
+ REAL RTT,TTT1,TEMPT,TM1BT
+ REAL TEMPS,T1RD,T2RD,T1RPD,T2RPD
+ REAL CT1,A1,A2,T1RR,T2RR
+ REAL CT5,A5,A6,T1RPRP,T2RPRP
+ REAL A9,T1RRP,T2RRP
+ REAL TEMPSQ,DT1,DT2,VRRT,VRPRPT,VRRPT
+ REAL ALPHAT,LAT
+C
+ REAL RBB,BBB1,TEMPB,TM1BB
+ REAL B1RD,B2RD,B1RPD,B2RPD
+ REAL CB3,A3,A4,B1RR,B2RR
+ REAL CB7,A7,A8,B1RPRP,B2RPRP
+ REAL A10,B1RRP,B2RRP
+ REAL DB1,DB2,VRRB,VRPRPB,VRRPB
+ REAL ALPHAB,LAB
+C
+ REAL DVRR,DVRPRP,DVRRP,TEMPH
+ REAL MHL2,MHH2,TRACEM,TPAL,TANAH
+ REAL ASMB,MBMB,MBQ,ASMT,MTMT,MTQ,SUALFS,HIGFRZ
+ DOUBLE PRECISION SSMQCD
+ INTEGER INRAD,MHLNEG
+C
+ MHLNEG=0
+ PI=4.*ATAN(1.)
+ PI2 = PI**2
+ SR2=SQRT(2.)
+ G2=4.*PI*ALFAEM/SN2THW
+ GP2=G2*SN2THW/(1.-SN2THW)
+ HIGFRZ=SQRT(AMTLSS*AMTRSS)
+ ASMB=SUALFS(AMBT**2,.36,AMTP,3)
+ MBMB=AMBT*(1.-4*ASMB/3./PI)
+ MBQ=SSMQCD(DBLE(MBMB),DBLE(HIGFRZ))
+ ASMT=SUALFS(AMTP**2,.36,AMTP,3)
+ MTMT=AMTP/(1.+4*ASMT/3./PI+(16.11-1.04*(5.-6.63/AMTP))*
+ $(ASMT/PI)**2)
+ MTQ=SSMQCD(DBLE(MTMT),DBLE(HIGFRZ))
+ MT2=MTQ**2
+ MB2=MBQ**2
+ MW2=AMW**2
+ EP=TWOM1
+ EP2=EP**2
+ RR=RV2V1
+ MHP2=AMHA**2
+ TANB=1.0/RR
+ COTB=RR
+ BE=ATAN(1./RV2V1)
+ SINB=SIN(BE)
+ COSB=COS(BE)
+ SINB2=SINB**2
+ COSB2=COSB**2
+ SIN2B=SIN(2.*BE)
+ COS2B=COS(2.*BE)
+ V2=2.0*MW2*SINB2/G2
+ VP2=2.0*MW2*COSB2/G2
+ V=SQRT(V2)
+ VP=SQRT(VP2)
+ VVP=SQRT(V2*VP2)
+ VPVM=VP2-V2
+ GGP=G2+GP2
+ GG1=G2-5.0*GP2/3.0
+ GG2=G2-GP2/3.0
+ VVPP=2.0*AMZ**2/GGP
+ FT2=MT2/V2
+ FB2=MB2/VP2
+C
+ TLRM=AMTLSS**2-AMTRSS**2
+ BLRM=AMBLSS**2-AMBRSS**2
+ TLRP=AMTLSS**2+AMTRSS**2
+ BLRP=AMBLSS**2+AMBRSS**2
+C
+C Higgs mass matrix
+C
+C (AAT and AAB are also assumed to be real)
+C
+ ATR=AAT
+ ABR=AAB
+ ATI=0.0
+ ABI=0.0
+ AT2=ATR**2+ATI**2
+ AB2=ABR**2+ABI**2
+C
+ MST1SQ=AMT1SS**2
+ MST2SQ=AMT2SS**2
+ MSB1SQ=AMB1SS**2
+ MSB2SQ=AMB2SS**2
+ INRAD=1
+ QQQ2=HIGFRZ**2
+C
+ ZAP = 1.0
+C
+C STOP TERMS
+C
+ RTT=(TLRM+VPVM*ZAP*GG1/4.0)**2
+ $ +4.0*MT2*(EP*COTB+ATR)**2+4.0*MT2*ATI**2
+ RTT=SQRT(RTT)
+C
+C calculate 2M1*B term
+C
+ TTT1=0.5*TLRP+MT2+VPVM*ZAP*GGP/8.0
+ IF(RTT.NE.0.0) THEN
+ TEMPT=4.0*EP*FT2*VVP*ATI**2/(RTT**2)
+ TM1BT=-2.0*FT2*(TEMPT+ATR)*TTT1
+ $ *LOG(MST2SQ/MST1SQ)/RTT
+ TM1BT=TM1BT-FT2*ATR
+ $ *LOG(MST1SQ*MST2SQ/QQQ2/QQQ2)
+ TM1BT=TM1BT+FT2*(2.0*TEMPT-ATR)
+ TM1BT=3.0*EP*TM1BT/32.0/PI2
+C
+C calculate first derivatives w.r.t H_R
+C divided by sqrt(2) * v
+C
+ TEMPS=-ZAP*GG1*(TLRM+ZAP*GG1*VPVM/4.0)/2.0
+ TEMPS=TEMPS+4.0*FT2*(AT2+EP*COTB*ATR)
+ TEMPS=TEMPS/RTT/4.0
+ T1RD=FT2-ZAP*GGP/8.0-TEMPS
+ T2RD=FT2-ZAP*GGP/8.0+TEMPS
+C
+C calculate first derivatives w.r.t H_R'
+C divided by sqrt(2) * v'
+C
+ TEMPS=ZAP*GG1*(TLRM+ZAP*GG1*VPVM/4.0)/2.0
+ TEMPS=TEMPS+4.0*FT2*EP*(EP+TANB*ATR)
+ TEMPS=TEMPS/RTT/4.0
+ T1RPD=ZAP*GGP/8.0-TEMPS
+ T2RPD=ZAP*GGP/8.0+TEMPS
+C
+C calculate second derivatives w.r.t. H_R
+C
+ CT1=-V*ZAP*GG1*(TLRM+ZAP*GG1*VPVM/4.0)/SR2
+ CT1=CT1+4.0*SR2*FT2*V*(EP*COTB*ATR+AT2)
+ A1=-CT1**2/(RTT**3)/8.0
+ A2=-ZAP*GG1*(TLRM+ZAP*GG1*VPVM/4.0)/2.0
+ A2=A2+V2*ZAP*GG1**2/4.0+4.0*FT2*AT2
+ A2=A2/RTT/4.0
+ T1RR=FT2-ZAP*GGP/8.0-A1-A2
+ T2RR=FT2-ZAP*GGP/8.0+A1+A2
+C
+C calculate second derivatives w.r.t. H_R'
+C
+ CT5=VP*ZAP*GG1*(TLRM+ZAP*GG1*VPVM/4.0)/SR2
+ CT5=CT5+4.0*SR2*FT2*VP*EP*(EP+TANB*ATR)
+ A5=-CT5**2/(RTT**3)/8.0
+ A6=ZAP*GG1*(TLRM+ZAP*GG1*VPVM/4.0)/2.0
+ A6=A6+VP2*ZAP*GG1**2/4.0+4.0*FT2*EP2
+ A6=A6/RTT/4.0
+ T1RPRP=ZAP*GGP/8.0-A5-A6
+ T2RPRP=ZAP*GGP/8.0+A5+A6
+C
+C calculate second derivatives w.r.t. H_R and H_R'
+C
+ A9=-VVP*ZAP*(GG1**2)/4.0+4.0*FT2*EP*ATR
+ A9=A9/RTT/4.0
+ T1RRP=CT1*CT5/(RTT**3)/8.0-A9
+ T2RRP=-CT1*CT5/(RTT**3)/8.0+A9
+C
+C calculate D^2 V / D^2 H_R
+C
+ TEMPSQ=MST1SQ*(T1RR-T1RD)
+ DT1=2.0*(2.0*V2*T1RD**2+TEMPSQ)*LOG(MST1SQ/QQQ2)
+ DT1=DT1+6.0*V2*T1RD**2+TEMPSQ
+ TEMPSQ=MST2SQ*(T2RR-T2RD)
+ DT2=2.0*(2.0*V2*T2RD**2+TEMPSQ)*LOG(MST2SQ/QQQ2)
+ DT2=DT2+6.0*V2*T2RD**2+TEMPSQ
+ VRRT=DT1+DT2-8.0*FT2*MT2*LOG(MT2/QQQ2)-12.0*FT2*MT2
+ VRRT=-TM1BT*COTB+3.0*VRRT/32.0/PI2
+C
+C calculate D^2 V / D^2 H'_R
+C
+ TEMPSQ=MST1SQ*(T1RPRP-T1RPD)
+ DT1=2.0*(2.0*VP2*T1RPD**2+TEMPSQ)*LOG(MST1SQ/QQQ2)
+ DT1=DT1+6.0*VP2*T1RPD**2+TEMPSQ
+ TEMPSQ=MST2SQ*(T2RPRP-T2RPD)
+ DT2=2.0*(2.0*VP2*T2RPD**2+TEMPSQ)*LOG(MST2SQ/QQQ2)
+ DT2=DT2+6.0*VP2*T2RPD**2+TEMPSQ
+ VRPRPT=-TM1BT*TANB+3.0*(DT1+DT2)/32.0/PI2
+C
+C calculate D^2 V / D^H_R D^H_R'
+C
+ DT1=2.0*VVP*T1RD*T1RPD+MST1SQ*T1RRP
+ DT1=2.0*DT1*LOG(MST1SQ/QQQ2)
+ DT1=DT1+6.0*VVP*T1RD*T1RPD+MST1SQ*T1RRP
+ DT2=2.0*VVP*T2RD*T2RPD+MST2SQ*T2RRP
+ DT2=2.0*DT2*LOG(MST2SQ/QQQ2)
+ DT2=DT2+6.0*VVP*T2RD*T2RPD+MST2SQ*T2RRP
+ VRRPT=TM1BT+3.0*(DT1+DT2)/32.0/PI2
+C
+ ELSE IF(RTT.EQ.0.0) THEN
+C
+ ALPHAT=TLRP/2.0+MT2+ZAP*GGP*VPVM/8.0
+ LAT=2.0*LOG(ALPHAT/QQQ2)+3.0
+C
+C calculate D^2 V / D^2 H_R
+C
+ VRRT=V2*(GGP**2+GG1**2)/16.0-MT2*GGP
+ VRRT=ZAP*VRRT*LAT+8.0*FT2*MT2*LOG(ALPHAT/MT2)
+ VRRT=3.0*VRRT/32.0/PI2
+C
+C calculate D^2 V / D^2 H_R'
+C
+ VRPRPT=ZAP*VP2*(GGP**2+GG1**2)/16.0
+ VRPRPT=3.0*(VRPRPT*LAT)/32.0/PI2
+C
+C calculate D^2 V / D^H_R D^H_R'
+C
+ VRRPT=FT2*GGP-(GGP**2+GG1**2)/8.0
+ VRRPT=ZAP*VVP*VRRPT*LAT/2.0
+ VRRPT=3.0*VRRPT/32.0/PI2
+C
+C
+ ENDIF
+C
+C SBOTTOM TERMS
+C
+ RBB=(BLRM-VPVM*ZAP*GG2/4.0)**2
+ $ +4.0*MB2*(EP*TANB+ABR)**2+4.0*MB2*ABI**2
+ RBB=SQRT(RBB)
+C IF(RBB.EQ.0.0.AND.ABI.NE.0.0) THEN
+C WRITE(6,*) 'RBB=0, ABI NOT 0'
+C WRITE(6,*) 'ERROR: THIS CASE NOT COVERED YET'
+C GO TO 1000
+C ENDIF
+C
+ IF(RBB.NE.0.0) THEN
+C
+C calculate 2M1*B term
+C
+ BBB1=0.5*BLRP+MB2-VPVM*ZAP*GGP/8.0
+ TEMPB=4.0*EP*FB2*VVP*ABI**2/(RBB**2)
+ TM1BB=-2.0*FB2*(TEMPB+ABR)*BBB1
+ $ *LOG(MSB2SQ/MSB1SQ)/RBB
+ TM1BB=TM1BB-FB2*ABR
+ $ *LOG(MSB1SQ*MSB2SQ/QQQ2/QQQ2)
+ TM1BB=TM1BB+FB2*(2.0*TEMPB-ABR)
+ TM1BB=3.0*EP*TM1BB/32.0/PI2
+C
+C calculate first derivatives w.r.t H_R
+C divided by sqrt(2) * v
+C
+ TEMPS=ZAP*GG2*(BLRM-ZAP*GG2*VPVM/4.0)/2.0
+ TEMPS=TEMPS+4.0*FB2*EP*(EP+COTB*ABR)
+ TEMPS=TEMPS/RBB/4.0
+ B1RD=ZAP*GGP/8.0-TEMPS
+ B2RD=ZAP*GGP/8.0+TEMPS
+
+C calculate first derivatives w.r.t H_R'
+C divided by sqrt(2) * v'
+C
+ TEMPS=-ZAP*GG2*(BLRM-ZAP*GG2*VPVM/4.0)/2.0
+ TEMPS=TEMPS+4.0*FB2*(AB2+EP*TANB*ABR)
+ TEMPS=TEMPS/RBB/4.0
+ B1RPD=FB2-ZAP*GGP/8.0-TEMPS
+ B2RPD=FB2-ZAP*GGP/8.0+TEMPS
+C
+C calculate second derivatives w.r.t. H_R
+C
+ CB3=V*ZAP*GG2*(BLRM-ZAP*GG2*VPVM/4.0)/SR2
+ CB3=CB3+4.0*SR2*FB2*V*EP*(EP+COTB*ABR)
+ A3=-CB3**2/(RBB**3)/8.0
+ A4=ZAP*GG2*(BLRM-ZAP*GG2*VPVM/4.0)/2.0
+ A4=A4+V2*ZAP*GG2**2/4.0+4.0*FB2*EP2
+ A4=A4/RBB/4.0
+ B1RR=ZAP*GGP/8.0-A3-A4
+ B2RR=ZAP*GGP/8.0+A3+A4
+C
+C calculate second derivatives w.r.t. H_R'
+C
+ CB7=-VP*ZAP*GG2*(BLRM-ZAP*GG2*VPVM/4.0)/SR2
+ CB7=CB7+4.0*SR2*FB2*VP*(AB2+EP*TANB*ABR)
+ A7=-CB7**2/(RBB**3)/8.0
+ A8=-ZAP*GG2*(BLRM-ZAP*GG2*VPVM/4.0)/2.0
+ A8=A8+VP2*ZAP*GG2**2/4.0+4.0*FB2*AB2
+ A8=A8/RBB/4.0
+ B1RPRP=FB2-ZAP*GGP/8.0-A7-A8
+ B2RPRP=FB2-ZAP*GGP/8.0+A7+A8
+C
+C calculate second derivatives w.r.t. H_R and H_R'
+C
+ A10=-VVP*ZAP*(GG2**2)/4.0+4.0*FB2*EP*ABR
+ A10=A10/RBB/4.0
+ B1RRP=CB3*CB7/(RBB**3)/8.0-A10
+ B2RRP=-CB3*CB7/(RBB**3)/8.0+A10
+C
+C calculate D^2 V / D^2 H_R
+C
+ TEMPSQ=MSB1SQ*(B1RR-B1RD)
+ DB1=2.0*(2.0*V2*B1RD**2+TEMPSQ)*LOG(MSB1SQ/QQQ2)
+ DB1=DB1+6.0*V2*B1RD**2+TEMPSQ
+ TEMPSQ=MSB2SQ*(B2RR-B2RD)
+ DB2=2.0*(2.0*V2*B2RD**2+TEMPSQ)*LOG(MSB2SQ/QQQ2)
+ DB2=DB2+6.0*V2*B2RD**2+TEMPSQ
+ VRRB=-TM1BB*COTB+3.0*(DB1+DB2)/32.0/PI2
+C
+C calculate D^2 V / D^2 H'_R
+C
+ TEMPSQ=MSB1SQ*(B1RPRP-B1RPD)
+ DB1=2.0*(2.0*VP2*B1RPD**2+TEMPSQ)*LOG(MSB1SQ/QQQ2)
+ DB1=DB1+6.0*VP2*B1RPD**2+TEMPSQ
+ TEMPSQ=MSB2SQ*(B2RPRP-B2RPD)
+ DB2=2.0*(2.0*VP2*B2RPD**2+TEMPSQ)*LOG(MSB2SQ/QQQ2)
+ DB2=DB2+6.0*VP2*B2RPD**2+TEMPSQ
+ VRPRPB=DB1+DB2
+ VRPRPB=DB1+DB2-8.0*FB2*MB2*LOG(MB2/QQQ2)-12.0*FB2*MB2
+ VRPRPB=-TM1BB*TANB+3.0*VRPRPB/32.0/PI2
+C
+C calculate D^2 V / D H_R D H'_R
+C
+ DB1=2.0*VVP*B1RD*B1RPD+MSB1SQ*B1RRP
+ DB1=2.0*DB1*LOG(MSB1SQ/QQQ2)
+ DB1=DB1+6.0*VVP*B1RD*B1RPD+MSB1SQ*B1RRP
+ DB2=2.0*VVP*B2RD*B2RPD+MSB2SQ*B2RRP
+ DB2=2.0*DB2*LOG(MSB2SQ/QQQ2)
+ DB2=DB2+6.0*VVP*B2RD*B2RPD+MSB2SQ*B2RRP
+ VRRPB=TM1BB+3.0*(DB1+DB2)/32.0/PI2
+
+ ELSE IF(RBB.EQ.0.0) THEN
+C
+ ALPHAB=BLRP/2.0+MB2-ZAP*GGP*VPVM/8.0
+ LAB=2.0*LOG(ALPHAB/QQQ2)+3.0
+C
+C calculate D^2 V / D^2 H_R
+C
+ VRRB=ZAP*V2*(GGP**2 + GG2**2)/16.0
+ VRRB=3.0*(VRRB*LAB)/32.0/PI2
+C
+C calculate D^2 V / D^2 H_R'
+C
+ VRPRPB=VP2*(GGP**2+GG2**2)/16.0-MB2*GGP
+ VRPRPB=ZAP*VRPRPB*LAB+8.0*FB2*MB2*LOG(ALPHAB/MB2)
+ VRPRPB=3.0*VRPRPB/32.0/PI2
+C
+C calculate D^2 V / D^H_R D^H_R'
+C
+ VRRPB=FB2*GGP-(GGP**2+GG2**2)/8.0
+ VRRPB=ZAP*VVP*VRRPB*LAB/2.0
+ VRRPB=3.0*VRRPB/32.0/PI2
+C
+ ENDIF
+C
+ DVRR=VRRT+VRRB+VP2*MHP2/VVPP + V2*GGP/2.0
+ DVRPRP=VRPRPT+VRPRPB+V2*MHP2/VVPP + VP2*GGP/2.0
+ DVRRP=VRRPT+VRRPB-VVP*MHP2/VVPP - VVP*GGP/2.0
+C TEMPH is always non-negative:
+ TEMPH=(DVRR-DVRPRP)**2+4*DVRRP**2
+ TEMPH=0.5*SQRT(TEMPH)
+ MHL2=0.5*(DVRR+DVRPRP)-TEMPH
+ MHH2=0.5*(DVRR+DVRPRP)+TEMPH
+ IF(MHL2.LT.0.0) THEN
+ MHLNEG=1
+C WRITE(LOUT,*) 'SSMHN: ERROR: MHL**2 < 0.0 FOR PARAMETERS:'
+C WRITE(LOUT,*) 'MHP =', AMHA, 'TANB =', 1.0/RR
+C WRITE(LOUT,*) 'MSTL=', AMTLSS, 'MSBL=', AMBLSS
+C WRITE(LOUT,*) 'MSTR=', AMTRSS, 'MSBR=', AMBRSS
+C WRITE(LOUT,*) 'AT=', AAT, 'AB=', AAB
+C WRITE(LOUT,*) 'MU=-2M1=', -EP
+C WRITE(LOUT,*) 'MT=', AMTP, 'MB=', AMBT
+C WRITE(LOUT,*) 'D-TERMS? 1=YES 2=NO :', INRAD
+C WRITE(LOUT,*) 'MASS SCALE (QQQ)=', SQRT(QQQ2)
+ AMHH=SQRT(MHH2)
+ AMHL=SQRT(ABS(MHL2))
+ GO TO 1000
+ ENDIF
+ AMHL=SQRT(MHL2)
+ AMHH=SQRT(MHH2)
+
+C
+C Now calculate mixing angle ALFAH
+C
+ TRACEM=DVRR-DVRPRP
+ TPAL=TRACEM**2 + 4.0*DVRRP**2
+ TANAH=TRACEM+SQRT(TPAL)
+ IF(DVRRP.EQ.0.0) THEN
+ WRITE(LOUT,*) 'SSMHN: OFF-DIAGONAL TERM OF SCALAR HIGGS',
+ $ ' MASS MATRIX IS ZERO '
+ IF(TANAH.NE.0.0) THEN
+ WRITE(LOUT,*) 'SSMHN: WARNING: TAN(ALFAH) FORMULA',
+ $ ' YIELDS INFINITY'
+ ELSE IF(TANAH.EQ.0.0) THEN
+ WRITE(LOUT,*) 'SSMHN: WARNING: TAN(ALFAH) FORMULA',
+ $ ' YIELDS 0/0 '
+ ENDIF
+ IF(DVRR.GT.DVRPRP) THEN
+ WRITE(LOUT,*) 'SSMHN: DVRR > DVRPRP ==> SET ALFAH=PI/2'
+ ALFAH = PI/2.0
+ ELSE IF (DVRR .LT. DVRPRP) THEN
+ WRITE(LOUT,*) 'SSMHN: DVRR < DVRPRP ==> SET ALFAH=0'
+ ALFAH = 0.0
+ ELSE IF (DVRR .EQ. DVRPRP) THEN
+ WRITE(LOUT,*) 'SSMHN: DVRR = DVRPRP ==> ALFAH INDETERMINANT'
+ WRITE(LOUT,*) 'SETTING SCALAR MIXING ANGLE ALPHA=PI/4'
+ ALFAH=PI/4.0
+ ENDIF
+ GO TO 1000
+ ENDIF
+ TANAH = -0.5*TANAH/DVRRP
+ ALFAH = ATAN(TANAH)
+C
+1000 RETURN
+ END
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff